Utilization of Date By-Products in the Food Industry
DOI:
https://doi.org/10.9755/ejfa.2020.v32.i11.2192Abstract
The fruit of date palm tree Phoenix dactylifera is among the most abundant fruits, and it is rich in essential nutrients. Quality-wise, not all cultivated date fruits meet the commercial standards, and tons of date fruit that are immature, or of poor appearance but with no reduced nutritive value are treated as date by-product and are being used for animal feed or are discarded during processing by the relevant industries. Together with the rejected fruit, date seed which is the inedible part, and the trimmed fronds of the date palm, they are all discarded, resulting in an environmental problem, and an economical loss. The objective of this review is to identify current practices on the uses of low-grade date, seed, and frond in the industry. The literature shows date fruit of low quality is typically processed to make date paste and date syrup, and both are well utilized in the food sector. The chemical composition of date seed, and increasingly of other parts are well known, and fully exploited in many industrial applications.
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References
Abd-Alla, M. H., and El-Enany, A.-W. E. 2012. 'Production of acetone-butanol-ethanol from spoilage date palm (Phoenix dactylifera L.) fruits by mixed culture of Clostridium acetobutylicum and Bacillus subtilis', Biomass and Bioenergy, 42: 172-78. DOI:https://doi.org/10.1016/j.biombioe.2012.03.006
Agoudjil, B., Benchabane, A., Boudenne, A. Ibos, L., and Fois, M. 2011. 'Renewable materials to reduce building heat loss: Characterization of date palm wood', Energy and Buildings, 43: 491-97. DOI:https://doi.org/10.1016/j.enbuild.2010.10.014
Ahmed, J., and Ramaswamy, H. S.. 2006. 'Physico-chemical properties of commercial date pastes (Phoenix dactylifera)', Journal of Food Engineering, 76: 348-52. DOI:https://doi.org/10.1016/j.jfoodeng.2005.05.033
Ahmed, M. J. 2016. 'Preparation of activated carbons from date (Phoenix dactylifera L.) palm stones and application for wastewater treatments: Review', Process Safety and Environmental Protection, 102: 168-82. DOI:https://doi.org/10.1016/j.psep.2016.03.010
Al-Alawi, R. A., Al-Mashiqri, J. H. Al-Nadabi, J. S. M., Al-Shihi, B. I., and Baqi, Y. 2017. 'Date palm tree (Phoenix dactylifera L.): Natural products and therapeutic options', Frontiers in Plant Science, 8. DOI:10.3389/fpls.2017.00845
Al Eid, S. M. 2006. 'Chromatographic separation of fructose from date syrup', International Journal of Food Science and Nutrition, 57: 83-96. DOI: 10.1080/09637480600658286
Al-Farsi, M., Alasalvar, C. Al-Abid, M., Al-Shoaily, K., Al-Amry, M., and Al-Rawahy, F. 2007. 'Compositional and functional characteristics of dates, syrups, and their by-products', Food Chemistry, 104: 943-47. DOI:https://doi.org/10.1016/j.foodchem.2006.12.051
Al-Farsi, M. A., and Lee C. Y.. 2008. 'Nutritional and functional properties of dates: a review', Critical reviews in food science and nutrition, 48: 877-87. DOI:https://doi.org/10.1080/10408390701724264
Al-Ghouti, M. A., Al Disi, Z. A., Al-Kaabi, N. and Khraisheh, M. 2017. 'Mechanistic insights into the remediation of bromide ions from desalinated water using roasted date pits', Chemical Engineering Journal, 308: 463-75. DOI:https://doi.org/10.1016/j.cej.2016.09.091
Alhamed, Y. A. 2009. 'Adsorption kinetics and performance of packed bed adsorber for phenol removal using activated carbon from dates’ stones', Journal of Hazardous Materials, 170: 763-70. DOI: https://doi.org/10.1016/j.jhazmat.2009.05.002
Al-Harrasi, A., Rehman, N. U., Hussain, J., Khan, A. L. Al-Rawahi, A., Gilani, S. A., Al-Broumi, M., and Ali, L. 2014. 'Nutritional assessment and antioxidant analysis of 22 date palm (Phoenix dactylifera) varieties growing in Sultanate of Oman', Asian Pacific Journal of Tropical Medicine, 7s1: S591-8. DOI:10.1016/s1995-7645(14)60294-7
Ali, M. A., Al-Hattab, T. A., and Al-Hydary, I. A. 2015. 'Extraction of date palm seed oil (Phoenix Dactylifera) by soxhlet apparatus', International Journal of Advances in Engineering & Technology, 8: 261-71. Corpus ID: 212454132
Al-Muhtaseb, A., Jamil, F., AlHaj, L., Myint, M. T. Z., Mahmoud, E., Ahmad, M., Hasan, A., and Rafiq, S. 2018. 'Biodiesel production over a catalyst prepared from biomass-derived waste date pits', Biotechnology Reports, 20: e00284. DOI:10.1016/j.btre.2018.e00284
Al-Oqla, F. M., and Sapuan, S. M.. 2014. 'Natural fiber reinforced polymer composites in industrial applications: feasibility of date palm fibers for sustainable automotive industry', Journal of Cleaner Production, 66: 347-54. DOI:https://doi.org/10.1016/j.jclepro.2013.10.050
Al-Shahib, W., and Marshall, R. J. 2003. 'The fruit of the date palm: its possible use as the best food for the future?', International journal of food sciences and nutrition, 54: 247-59. DOI:https://doi.org/10.1080/09637480120091982
Al-Sumri, A., Al-Siyabi, N., Al-Saadi, R., Al-Rasbi, S., and Al-Dallal, A. 2017. 'Study on the extraction of date palm seed oil using soxhlet apparatus', International Journal of Scientific and Engineering Research, 7: 1266.
Al-Zuhair, S., Taher, H., Al-Dhaheri, S., Wajeeh, S., Nour, M., El-Najjar, E., and Hasan. S. 2017. 'Biodiesel production from oils extracted from date pits', Green and Sustainable Chemistry, 7. DOI:10.4236/gsc.2017.71004
Ardali, F. R., and Akbarian, M. 2014. 'The influence of date syrup on color, texture and sensory properties of Gaz', Bulletin of Environment, Pharmacology and Life Sciences, 3: 159-63.
Ashraf, Z., and Hamidi-Esfahani, Z. 2011. 'Date and date processing: A review', Food Reviews International, 27: 101-33. DOI:10.1080/87559129.2010.535231
Awad, M. A. 2007. 'Increasing the rate of ripening of date palm fruit (Phoenix dactylifera L.) cv. Helali by preharvest and postharvest treatments', Postharvest Biology and Technology, 43: 121-27. DOI:https://doi.org/10.1016/j.postharvbio.2006.08.006
Azeem, M. W., Hanif, M. A., Al-Sabahi, J. N., Khan, A. A., Naz, S., and Ijaz, A. 2016. 'Production of biodiesel from low priced, renewable and abundant date seed oil', Renewable Energy, 86: 124-32. DOI:https://doi.org/10.1016/j.renene.2015.08.006
Baliga, M. S., Baliga, B. R. V., Kandathil, S. M., Bhat, H. P., and Vayalil, P. K.. 2011. 'A review of the chemistry and pharmacology of the date fruits (Phoenix dactylifera L.)', Food Research International, 44: 1812-22. DOI:https://doi.org/10.1016/j.foodres.2010.07.004
Barreveld, W.H. 1993. "Date Palm Products." In FAO Agricultural Services Bulletin No.101. Food and Agriculture Organization of the United Nations.
Basuny, A. M. M., and Al-Marzooq, M. A.. 2011. "Production of mayonnaise from date pit oil." Food Nutrtion. Sci, 938-43. DOI:10.4236/fns.2011.29128
Ben Salah, R., Chaari, K., Besbes, S., Ktari, N., Blecker, C., Deroanne, C., and Attia, H. 2010. 'Optimisation of xanthan gum production by palm date (Phoenix dactylifera L.) juice by-products using response surface methodology', Food Chemistry, 121: 627-33. DOI:https://doi.org/10.1016/j.foodchem.2009.12.077
Ben Salah, R., Jaouadi, B., Bouaziz, A., Chaari, K., Blecker, C., Derrouane, C., Attia, H., and Besbes, S. 2011. 'Fermentation of date palm juice by curdlan gum production from Rhizobium radiobacter ATCC 6466 (TM): Purification, rheological and physico-chemical characterization', Lebensmittel-Wissenschaft und-Technologie, 44: 1026-34. DOI:10.1016/j.lwt.2010.11.023
Ben-Youssef, S., Fakhfakh, J., Breil, C., Abert-Vian, M., Chemat, F., and Allouche, N. 2017. 'Green extraction procedures of lipids from Tunisian date palm seeds', Industrial Crops and Products, 108: 520-25. DOI:https://doi.org/10.1016/j.indcrop.2017.07.010
Besbes, S., Blecker, C., Deroanne, C., Drira, N.-E., and Attia, H. 2004. 'Date seeds: chemical composition and characteristic profiles of the lipid fraction', Food Chemistry, 84: 577-84. DOI:https://doi.org/10.1016/S0308-8146(03)00281-4
Besbes, S., Drira, L., Blecker, C., Deroanne, C., and Attia, H. 2009. 'Adding value to hard date (Phoenix dactylifera L.): Compositional, functional and sensory characteristics of date jam', Food Chemistry, 112: 406-11. DOI:https://doi.org/10.1016/j.foodchem.2008.05.093
Bkary, M., Metwaly, A.-E.-R., Syed, M., and Ghazzawy, H. 2018. 'Use of rejects of date palm factories to bakery yeast production': 269-74. DOI:10.12692/ijb/12.6.1-5
Briones, R., Serrano, L., Ben Younes,R., Mondragon, I., and Labidi, J. 2011. 'Polyol production by chemical modification of date seeds', Industrial Crops and Products, 34: 1035-40. DOI:https://doi.org/10.1016/j.indcrop.2011.03.012
Chandrasekaran, M., and Bahkali, A. H.. 2013. 'Valorization of date palm (Phoenix dactylifera) fruit processing by-products and wastes using bioprocess technology - Review', Saudi Journal of Biological Sciences, 20: 105-20. DOI:10.1016/j.sjbs.2012.12.004
Chao, C. T., and Krueger, R. R. 2007. 'The date palm (Phoenix dactylifera L.): Overview of biology, uses, and cultivation', HortScience, 42: 1077. DOI:10.21273/hortsci.42.5.1077
Daoud, A., Malika, D., Bakari, S., Hfaiedh, N., Mnafgui, K., Kadri, A., and Gharsallah, N. 2019. 'Assessment of polyphenol composition, antioxidant and antimicrobial properties of various extracts of Date Palm Pollen (DPP) from two Tunisian cultivars', Arabian Journal of Chemistry, 12: 3075-86. DOI:https://doi.org/10.1016/j.arabjc.2015.07.014
Djaoud, K., Boulekbache-Makhlouf, L., Yahia, M., Mansouri, H., Mansouri, N., Madani, K., and Romero, A. 2020. 'Dairy dessert processing: Effect of sugar substitution by date syrup and powder on its quality characteristics', Journal of Food Processing and Preservation, 44: e14414. DOI:https://doi.org/10.1111/jfpp.14414
El Hag, M. G., and Al Shargi, K. M. 1998. 'Comparative performance of goats and sheep fed on high-fiber pelleted diets supplemented with different nitrogen sources', Journal of Applied Animal Research, 13: 179-84. DOI:10.1080/09712119.1998.9706684
Elleuch, M., Besbes, S., Roiseux, O., Blecker, C., Deroanne, C., Drira, N.-E. and Attia, H. 2008. 'Date flesh: Chemical composition and characteristics of the dietary fibre', Food Chemistry, 111: 676-82. DOI:https://doi.org/10.1016/j.foodchem.2008.04.036
El-Nagga, E. A., and Abd El-Tawab, Y. A. 2012. 'Compositional characteristics of date syrup extracted by different methods in some fermented dairy products', Annals of Agricultural Sciences, 57: 29-36. DOI:https://doi.org/10.1016/j.aoas.2012.03.007
Elsanhoty, R. M., Al-Turki, I. A., and Ramadan, M. F. 2012. 'Screening of medium components by Plackett–Burman design for carotenoid production using date (Phoenix dactylifera) wastes', Industrial Crops and Products, 36: 313-20. DOI:https://doi.org/10.1016/j.indcrop.2011.10.013
Eoin, L. 2016. 'Systematics: Blind dating', Nature Plants, 2: 16069. DOI:10.1038/nplants.2016.69
FAOSTAT. 2018. 'Date', The Food and Agriculture Organization of the United Nations, Accessed 10/06/2020. http://faostat.fao.org/faostat/en/#data/QC.
Farahnaky, A., Mardani, M., Mesbahi, G., and Majzoobi, M. 2016. 'Some physicochemical properties of date syrup, concentrate, and liquid sugar in comparison with sucrose solutions', Journal of Agricultural Science and Technology, 18: 657-68. Corpus ID: 55858199
Gheisari, H. R., Heydari, S., and Basiri, S. 2020. 'The effect of date versus sugar on sensory, physicochemical, and antioxidant properties of ice cream', Iranian Journal of Veterinary Research, 21: 9. PMID: 32368219
Glasner, B., Botes, A., Zaid, A., and Emmens, J. 1999. "Chapter IX Date Harvesting, Packing House Management and Marketing Aspects " In FAO Plant Production and Protection Papers, 175-205. The Food and Agriculture Organization of the United Nations.
Hamada, J. S., Hashim, I. B., and Sharif, F. A. 2002. 'Preliminary analysis and potential uses of date pits in foods', Food Chemistry, 76: 135-37. DOI:10.1016/S0308-8146(01)00253-9
Hazzouri, K. M., Flowers, J. M., Visser, H. J., Khierallah, H. S. M., Rosas, U., Pham, G. M., Meyer, R. S., Johansen, C. K., Fresquez, Z. A., Masmoudi, K., Haider, N., El Kadri, N., Idaghdour, Y., Malek, J. A., Thirkhill, D., Markhand, G. S., Krueger, R. R., Zaid, A., and Purugganan, M.D. 2015. 'Whole genome re-sequencing of date palms yields insights into diversification of a fruit tree crop', Nature Communications, 6: 8824. DOI:10.1038/ncomms9824
Hussein, A., and Ali, H. 2017. 'Chemical and technological properties of improved snacks from oat and date seeds composite flour', American Journal of Food Technology, 12: 201-08. DOI:10.3923/AJFT.2017.201.208
Jaafar, K. A. 2010. "Biogas production by anaerobic digestion of date palm pulp waste." Al-Khwarizmi Engineering Journal, 6: 14-20.
Jadhav, A., Holkar, C., Goswami, A., Pandit, A., and Pinjari, D. 2016. 'Acoustic cavitation as a novel approach for extraction of oil from waste date seeds', ACS Sustainable Chemistry & Engineering, 4. DOI:10.1021/acssuschemeng.6b00753
Jridi, M., Souissi, N., Ben Salem, M., Ayadi, M. A., Nasri, M., and Azabou, S. 2015. 'Tunisian date (Phoenix dactylifera L.) by-products: Characterization and potential effects on sensory, textural and antioxidant properties of dairy desserts', Food Chemistry, 188: 8-15. DOI:https://doi.org/10.1016/j.foodchem.2015.04.107
Kalbouneh, S. 2011. 'Cropping patterns as a tool for water resource management in Palestine: date palm cultivation in Jiftlik, Jordan Valley', International Journal of Environmental Studies, 68: 447-60. DOI:10.1080/00207233.2011.582703
Kazemalilou, S., and Alizadeh, A. 2017. 'Optimization of sugar replacement with date syrup in prebiotic chocolate milk using response surface methodology', Korean Journal for Food Science of Animal Resources, 37: 449-55. DOI:10.5851/kosfa.2017.37.3.449
Khiari, R., Dridi-Dhaouadi, S., Aguir, C., and Mhenni, M. F. 2010. 'Experimental evaluation of eco-friendly flocculants prepared from date palm rachis', Journal of Environmental Sciences, 22: 1539-43. DOI:https://doi.org/10.1016/S1001-0742(09)60286-2
Khiyami, M., Alfadul, S., and Bahkali, A. 2011. 'Polyhydroxyalkanoates production via Bacillus PCS biofilm and date palm syrup', Journal of medicinal plant research, 5: 3312-20. DOI: https://doi.org/10.5897/JMPR.9001026
King, J. W. 2014. 'Modern Supercritical Fluid Technology for Food Applications', Annual Review of Food Science and Technology, 5: 215-38. DOI:10.1146/annurev-food-030713-092447
Lattieff, F. 2016. 'A study of biogas production from date palm fruit wastes', Journal of Cleaner Production, 139: 1191-95. DOI:https://doi.org/10.1016/j.jclepro.2016.08.139
Lecheb, F., and Benamara, S. 2015. 'Feasibility study of a cosmetic cream added with aqueous extract and oil from date (Phoenix dactylifera L.) fruit seed using experimental design', Journal of cosmetic science, 66: 1-12. PMID: 27125011
Lobo, G., Yahia, E., and Kader, A. 2013. 'Biology and Postharvest Physiology of Date Fruit.' in Muhammad Siddiq; Salah M. Aleid; Adel A. Kader (ed.), Dates: Postharvest Science, Processing Technology and Health Benefits (John Wiley & Sons). Pp 57-80. DOI:10.1002/9781118292419.ch3
Mahgoub, O., Kadim, I. T., Al-Ajmi, D. S, Al-Saqry, N. M., Al-Abri, A. S., Richie, A. R., Annamalai, K., and Forsberg, N. E.. 2004. 'The effects of replacing Rhodes grass (Chloris gayana) hay with Ghaf (Prosopis cineraria) pods on the performance of Omani native sheep', Tropical Animal Health and Production, 36: 281-94. DOI:10.1023/B:TROP.0000016829.63985.2c
Mahgoub, O., Kadim, I., Johnson, E., Srikandakumar, A., Al-Saqri, N., Al-Abri, A., and Ritchie, A. 2005. 'The use of concentrate containing Meskit (Prosopis juliflora) pods and date palm by-products to replace commercial concentrate in diets of Omani sheep', Animal Feed Science and Technology, 120. DOI:10.1016/j.anifeedsci.2005.01.011
Manickvasagan, A., Chandini, S., and Al Attabi, Z. 2018. 'Effect of sugar replacement with date paste and date syrup on texture and sensory quality of kesari (traditional Indian dessert)', Journal of Agricultural and Marine Sciences, 22: 67. DOI:10.24200/jams.vol22iss1pp67-74
Martín-Sánchez, A. M., Ciro-Gómez, G., Sayas, E., Vilella-Esplá, J., Ben-Abda, J., and Pérez-Álvarez, J. Á. 2013. 'Date palm by-products as a new ingredient for the meat industry: Application to pork liver pâté', Meat Science, 93: 880-87. DOI:https://doi.org/10.1016/j.meatsci.2012.11.049
Mohamed, S., Awad, M., and Al-qurashi A. 2014. 'Antioxidant activity, antioxidant compounds, antioxidant andhydrolytic enzymes activities of ‘Barhee’ dates at harvest and duringstorage as affected by pre-harvest spray of some growth regulators', Scientia Horticulturae, 167: 91-99. DOI:10.1016/j.scienta.2014.01.003
Mrabet, A., Rodríguez-Gutiérrez, G., Rodríguez-Arcos, R., Guillén-Bejarano, R., Ferchichi, A., Sindic, M., and Jiménez-Araujo, A. 2016. 'Quality characteristics and antioxidant properties of muffins enriched with date fruit (Phoenix Dactylifera L.) fiber concentrates', Journal of Food Quality, 39: 237-44. DOI:10.1111/jfq.12194
Myhara, R. M., Byerley, D. J., Mahgoub, O., and Chesworth, J. M.. 2000. 'Effects of testicular status and feeding diets containing date palm by-product on the sensory attributes of Omani lamb meat', Small Ruminant Research, 38: 57-61. DOI:https://doi.org/10.1016/S0921-4488(00)00130-9
Nancib, N., Nancib, A., and Boudrant, J. 1997. 'Use of waste date products in the fermentative formation of baker's yeast biomass by Saccharomyces cerevisiae', Bioresource Technology, 60: 67-71. DOI:https://doi.org/10.1016/S0960-8524(97)00004-7
Nasser, R., and Al-Mefarrej, H. 2011. 'Midribs of date palm as a raw material for wood-cement composite industry in Saudi Arabia', World Applied Sciences Journal, 15. Corpus ID: 17057113
Nehdi, I., Omri, S., Khalil, M. I., and Al-Resayes, S. I. 2010. 'Characteristics and chemical composition of date palm (Phoenix canariensis) seeds and seed oil', Industrial Crops and Products, 32: 360-65. DOI:https://doi.org/10.1016/j.indcrop.2010.05.016
Nehdi, I., Sbihi, H., Tan, C., Rashid, U., and Al-Resayes, S. 2018. 'Chemical composition of date palm ( Phoenix dactylifera L .) seedo from six Saudi Arabian cultivars: Seed oil from Saudi Arabian cultivars', Journal of Food Science, 83. DOI:10.1111/1750-3841.14033
Platat, C., Habib, H. M., Hashim, I. B., Kamal, H., AlMaqbali, F., Souka, U., and Ibrahim, W. H.. 2015. 'Production of functional pita bread using date seed powder', Journal of food science and technology, 52: 6375-84. DOI:10.1007/s13197-015-1728-0
Puri, A., Sahai, R., Singh, K. L., Saxena, R. P., Tandon, J. S., and Saxena, K. C.. 2000. 'Immunostimulant activity of dry fruits and plant materials used in indian traditional medical system for mothers after child birth and invalids', Journal of Ethnopharmacology, 71: 89-92. DOI:10.1016/s0378-8741(99)00181-6
Radwan, H., Alanazi, F., Taha, E., Dardir, H., Moussa, I., and Alsarra, I. 2010. 'Development of a new medium containing date syrup for production of bleomycin by Streptomyces mobaraensis ATCC 15003 using response surface methodology', African Journal of Biotechnology, 9: 5450-59. DOI:https://doi.org/10.5897/AJB10.185
Razavi, S. M. A., Najafi, M. B. H., and Alaee, Z. 2007. 'The time independent rheological properties of low fat sesame paste/date syrup blends as a function of fat substitutes and temperature', Food Hydrocolloids, 21: 198-202. DOI:https://doi.org/10.1016/j.foodhyd.2006.03.008
Riahi, K., Ben Mammou, A., and Ben Thayer, B. 2009. 'Date-palm fibers media filters as a potential technology for tertiary domestic wastewater treatment', Journal of Hazardous Materials, 161: 608-13. DOI:https://doi.org/10.1016/j.jhazmat.2008.04.013
Saadaoui, N., Rouilly, A., Fares, K., and Rigal, L. 2013. 'Characterization of date palm lignocellulosic by-products and self-bonded composite materials obtained thereof', Materials & Design, 50: 302-08. DOI:https://doi.org/10.1016/j.matdes.2013.03.011
Sánchez-Zapata, E., Fernández-López, J., Peñaranda, M., Fuentes-Zaragoza, E., Sendra, E., Sayas, E., and Pérez-Alvarez, J. A. 2011. 'Technological properties of date paste obtained from date by-products and its effect on the quality of a cooked meat product', Food Research International, 44: 2401-07. DOI:https://doi.org/10.1016/j.foodres.2010.04.034
Sayed, A. F., Kholif, A. and Gad, A. S. 2010. 'Evaluation of the nutritional value of functional yogurt resulting from combination of date palm syrup and skim milk', American Journal of Food Technology, 5. DOI:10.3923/ajft.2010.250.259
Shi, J., Shahidi, F., and Ho, C.-T. 2005. Asian functional foods (CRC Press).
Siddiq, M., Greiby, I. 2013. 'Overview of date fruit production, postharvest handling, processing, and nutrition.' in Muhammad Siddiq; Salah M. Aleid; Adel A. Kader (ed.), Dates: Postharvest Science, Processing Technology and Health Benefits (John Wiley & Sons). Pp 1-28. DOI: 10.1002/9781118292419.ch1
Taleb, H., Maddocks, S. E., Morris, R. K. and Kanekanian, A.D. 2016. 'The antibacterial activity of date syrup polyphenols against S. aureus and E. coli', Frontiers in microbiology, 7: 198-98. DOI:10.3389/fmicb.2016.00198
Tammam, A. A., Mansour, A. I. A., Salman, K. H., and El-Gazzar, F. E. 2013. 'Preparation, and properties of bio-yoghurt containing date syrup (dibis)', Egyptian Journal of Dairy Science, 41: 69-76.
Tammam, A. A., Salman, K. H., and Abd-El-Rahim, A. M. 2014. 'Date syrup as a sugar substitute and natural flavour agent in ice cream manufacture', Journal of Food and Dairy Sciences, 5: 625-32.
Tang, Z. X., Shi, L. E., and Aleid, S. M.. 2013. 'Date fruit: chemical composition, nutritional and medicinal values, products', Journal of the Science of Food and Agriculture, 93: 2351-61. DOI:10.1002/jsfa.6154
Tiwari, B. K., Brunton, N. P., and Brennan, C. 2013. Handbook of plant food phytochemicals: sources, stability and extraction (John Wiley & Sons).
Vandepopuliere, J. M., Al-Yousef, Y., and Lyons, J. J. 1995. 'Dates and date pits as ingredients in broiler starting and coturnix quail breeder diets', Poultry Science, 74: 1134-42. DOI:https://doi.org/10.3382/ps.0741134
Vinatoru, M. 2001. 'An overview of the ultrasonically assisted extraction of bioactive principles from herbs', Ultrasonics Sonochemistry, 8: 303-13. DOI:https://doi.org/10.1016/S1350-4177(01)00071-2
Yangılar, F. 2015. 'Mineral contents and physical, chemical, sensory properties of ice cream enriched with date fibre', Italian Journal of Food Science, 27: 397-406. DOI:10.14674/1120-1770/ijfs.v283
Yousuf, R. G., and Winterburn, J. B.. 2017. 'Waste date seed oil extract as an alternative feedstock for Poly(3-hydroxybutyrate) synthesis', Biochemical Engineering Journal, 127: 68-76. DOI:https://doi.org/10.1016/j.bej.2017.08.007
Agoudjil, B., Benchabane, A., Boudenne, A. Ibos, L., and Fois, M. 2011. 'Renewable materials to reduce building heat loss: Characterization of date palm wood', Energy and Buildings, 43: 491-97. DOI:https://doi.org/10.1016/j.enbuild.2010.10.014
Ahmed, J., and Ramaswamy, H. S.. 2006. 'Physico-chemical properties of commercial date pastes (Phoenix dactylifera)', Journal of Food Engineering, 76: 348-52. DOI:https://doi.org/10.1016/j.jfoodeng.2005.05.033
Ahmed, M. J. 2016. 'Preparation of activated carbons from date (Phoenix dactylifera L.) palm stones and application for wastewater treatments: Review', Process Safety and Environmental Protection, 102: 168-82. DOI:https://doi.org/10.1016/j.psep.2016.03.010
Al-Alawi, R. A., Al-Mashiqri, J. H. Al-Nadabi, J. S. M., Al-Shihi, B. I., and Baqi, Y. 2017. 'Date palm tree (Phoenix dactylifera L.): Natural products and therapeutic options', Frontiers in Plant Science, 8. DOI:10.3389/fpls.2017.00845
Al Eid, S. M. 2006. 'Chromatographic separation of fructose from date syrup', International Journal of Food Science and Nutrition, 57: 83-96. DOI: 10.1080/09637480600658286
Al-Farsi, M., Alasalvar, C. Al-Abid, M., Al-Shoaily, K., Al-Amry, M., and Al-Rawahy, F. 2007. 'Compositional and functional characteristics of dates, syrups, and their by-products', Food Chemistry, 104: 943-47. DOI:https://doi.org/10.1016/j.foodchem.2006.12.051
Al-Farsi, M. A., and Lee C. Y.. 2008. 'Nutritional and functional properties of dates: a review', Critical reviews in food science and nutrition, 48: 877-87. DOI:https://doi.org/10.1080/10408390701724264
Al-Ghouti, M. A., Al Disi, Z. A., Al-Kaabi, N. and Khraisheh, M. 2017. 'Mechanistic insights into the remediation of bromide ions from desalinated water using roasted date pits', Chemical Engineering Journal, 308: 463-75. DOI:https://doi.org/10.1016/j.cej.2016.09.091
Alhamed, Y. A. 2009. 'Adsorption kinetics and performance of packed bed adsorber for phenol removal using activated carbon from dates’ stones', Journal of Hazardous Materials, 170: 763-70. DOI: https://doi.org/10.1016/j.jhazmat.2009.05.002
Al-Harrasi, A., Rehman, N. U., Hussain, J., Khan, A. L. Al-Rawahi, A., Gilani, S. A., Al-Broumi, M., and Ali, L. 2014. 'Nutritional assessment and antioxidant analysis of 22 date palm (Phoenix dactylifera) varieties growing in Sultanate of Oman', Asian Pacific Journal of Tropical Medicine, 7s1: S591-8. DOI:10.1016/s1995-7645(14)60294-7
Ali, M. A., Al-Hattab, T. A., and Al-Hydary, I. A. 2015. 'Extraction of date palm seed oil (Phoenix Dactylifera) by soxhlet apparatus', International Journal of Advances in Engineering & Technology, 8: 261-71. Corpus ID: 212454132
Al-Muhtaseb, A., Jamil, F., AlHaj, L., Myint, M. T. Z., Mahmoud, E., Ahmad, M., Hasan, A., and Rafiq, S. 2018. 'Biodiesel production over a catalyst prepared from biomass-derived waste date pits', Biotechnology Reports, 20: e00284. DOI:10.1016/j.btre.2018.e00284
Al-Oqla, F. M., and Sapuan, S. M.. 2014. 'Natural fiber reinforced polymer composites in industrial applications: feasibility of date palm fibers for sustainable automotive industry', Journal of Cleaner Production, 66: 347-54. DOI:https://doi.org/10.1016/j.jclepro.2013.10.050
Al-Shahib, W., and Marshall, R. J. 2003. 'The fruit of the date palm: its possible use as the best food for the future?', International journal of food sciences and nutrition, 54: 247-59. DOI:https://doi.org/10.1080/09637480120091982
Al-Sumri, A., Al-Siyabi, N., Al-Saadi, R., Al-Rasbi, S., and Al-Dallal, A. 2017. 'Study on the extraction of date palm seed oil using soxhlet apparatus', International Journal of Scientific and Engineering Research, 7: 1266.
Al-Zuhair, S., Taher, H., Al-Dhaheri, S., Wajeeh, S., Nour, M., El-Najjar, E., and Hasan. S. 2017. 'Biodiesel production from oils extracted from date pits', Green and Sustainable Chemistry, 7. DOI:10.4236/gsc.2017.71004
Ardali, F. R., and Akbarian, M. 2014. 'The influence of date syrup on color, texture and sensory properties of Gaz', Bulletin of Environment, Pharmacology and Life Sciences, 3: 159-63.
Ashraf, Z., and Hamidi-Esfahani, Z. 2011. 'Date and date processing: A review', Food Reviews International, 27: 101-33. DOI:10.1080/87559129.2010.535231
Awad, M. A. 2007. 'Increasing the rate of ripening of date palm fruit (Phoenix dactylifera L.) cv. Helali by preharvest and postharvest treatments', Postharvest Biology and Technology, 43: 121-27. DOI:https://doi.org/10.1016/j.postharvbio.2006.08.006
Azeem, M. W., Hanif, M. A., Al-Sabahi, J. N., Khan, A. A., Naz, S., and Ijaz, A. 2016. 'Production of biodiesel from low priced, renewable and abundant date seed oil', Renewable Energy, 86: 124-32. DOI:https://doi.org/10.1016/j.renene.2015.08.006
Baliga, M. S., Baliga, B. R. V., Kandathil, S. M., Bhat, H. P., and Vayalil, P. K.. 2011. 'A review of the chemistry and pharmacology of the date fruits (Phoenix dactylifera L.)', Food Research International, 44: 1812-22. DOI:https://doi.org/10.1016/j.foodres.2010.07.004
Barreveld, W.H. 1993. "Date Palm Products." In FAO Agricultural Services Bulletin No.101. Food and Agriculture Organization of the United Nations.
Basuny, A. M. M., and Al-Marzooq, M. A.. 2011. "Production of mayonnaise from date pit oil." Food Nutrtion. Sci, 938-43. DOI:10.4236/fns.2011.29128
Ben Salah, R., Chaari, K., Besbes, S., Ktari, N., Blecker, C., Deroanne, C., and Attia, H. 2010. 'Optimisation of xanthan gum production by palm date (Phoenix dactylifera L.) juice by-products using response surface methodology', Food Chemistry, 121: 627-33. DOI:https://doi.org/10.1016/j.foodchem.2009.12.077
Ben Salah, R., Jaouadi, B., Bouaziz, A., Chaari, K., Blecker, C., Derrouane, C., Attia, H., and Besbes, S. 2011. 'Fermentation of date palm juice by curdlan gum production from Rhizobium radiobacter ATCC 6466 (TM): Purification, rheological and physico-chemical characterization', Lebensmittel-Wissenschaft und-Technologie, 44: 1026-34. DOI:10.1016/j.lwt.2010.11.023
Ben-Youssef, S., Fakhfakh, J., Breil, C., Abert-Vian, M., Chemat, F., and Allouche, N. 2017. 'Green extraction procedures of lipids from Tunisian date palm seeds', Industrial Crops and Products, 108: 520-25. DOI:https://doi.org/10.1016/j.indcrop.2017.07.010
Besbes, S., Blecker, C., Deroanne, C., Drira, N.-E., and Attia, H. 2004. 'Date seeds: chemical composition and characteristic profiles of the lipid fraction', Food Chemistry, 84: 577-84. DOI:https://doi.org/10.1016/S0308-8146(03)00281-4
Besbes, S., Drira, L., Blecker, C., Deroanne, C., and Attia, H. 2009. 'Adding value to hard date (Phoenix dactylifera L.): Compositional, functional and sensory characteristics of date jam', Food Chemistry, 112: 406-11. DOI:https://doi.org/10.1016/j.foodchem.2008.05.093
Bkary, M., Metwaly, A.-E.-R., Syed, M., and Ghazzawy, H. 2018. 'Use of rejects of date palm factories to bakery yeast production': 269-74. DOI:10.12692/ijb/12.6.1-5
Briones, R., Serrano, L., Ben Younes,R., Mondragon, I., and Labidi, J. 2011. 'Polyol production by chemical modification of date seeds', Industrial Crops and Products, 34: 1035-40. DOI:https://doi.org/10.1016/j.indcrop.2011.03.012
Chandrasekaran, M., and Bahkali, A. H.. 2013. 'Valorization of date palm (Phoenix dactylifera) fruit processing by-products and wastes using bioprocess technology - Review', Saudi Journal of Biological Sciences, 20: 105-20. DOI:10.1016/j.sjbs.2012.12.004
Chao, C. T., and Krueger, R. R. 2007. 'The date palm (Phoenix dactylifera L.): Overview of biology, uses, and cultivation', HortScience, 42: 1077. DOI:10.21273/hortsci.42.5.1077
Daoud, A., Malika, D., Bakari, S., Hfaiedh, N., Mnafgui, K., Kadri, A., and Gharsallah, N. 2019. 'Assessment of polyphenol composition, antioxidant and antimicrobial properties of various extracts of Date Palm Pollen (DPP) from two Tunisian cultivars', Arabian Journal of Chemistry, 12: 3075-86. DOI:https://doi.org/10.1016/j.arabjc.2015.07.014
Djaoud, K., Boulekbache-Makhlouf, L., Yahia, M., Mansouri, H., Mansouri, N., Madani, K., and Romero, A. 2020. 'Dairy dessert processing: Effect of sugar substitution by date syrup and powder on its quality characteristics', Journal of Food Processing and Preservation, 44: e14414. DOI:https://doi.org/10.1111/jfpp.14414
El Hag, M. G., and Al Shargi, K. M. 1998. 'Comparative performance of goats and sheep fed on high-fiber pelleted diets supplemented with different nitrogen sources', Journal of Applied Animal Research, 13: 179-84. DOI:10.1080/09712119.1998.9706684
Elleuch, M., Besbes, S., Roiseux, O., Blecker, C., Deroanne, C., Drira, N.-E. and Attia, H. 2008. 'Date flesh: Chemical composition and characteristics of the dietary fibre', Food Chemistry, 111: 676-82. DOI:https://doi.org/10.1016/j.foodchem.2008.04.036
El-Nagga, E. A., and Abd El-Tawab, Y. A. 2012. 'Compositional characteristics of date syrup extracted by different methods in some fermented dairy products', Annals of Agricultural Sciences, 57: 29-36. DOI:https://doi.org/10.1016/j.aoas.2012.03.007
Elsanhoty, R. M., Al-Turki, I. A., and Ramadan, M. F. 2012. 'Screening of medium components by Plackett–Burman design for carotenoid production using date (Phoenix dactylifera) wastes', Industrial Crops and Products, 36: 313-20. DOI:https://doi.org/10.1016/j.indcrop.2011.10.013
Eoin, L. 2016. 'Systematics: Blind dating', Nature Plants, 2: 16069. DOI:10.1038/nplants.2016.69
FAOSTAT. 2018. 'Date', The Food and Agriculture Organization of the United Nations, Accessed 10/06/2020. http://faostat.fao.org/faostat/en/#data/QC.
Farahnaky, A., Mardani, M., Mesbahi, G., and Majzoobi, M. 2016. 'Some physicochemical properties of date syrup, concentrate, and liquid sugar in comparison with sucrose solutions', Journal of Agricultural Science and Technology, 18: 657-68. Corpus ID: 55858199
Gheisari, H. R., Heydari, S., and Basiri, S. 2020. 'The effect of date versus sugar on sensory, physicochemical, and antioxidant properties of ice cream', Iranian Journal of Veterinary Research, 21: 9. PMID: 32368219
Glasner, B., Botes, A., Zaid, A., and Emmens, J. 1999. "Chapter IX Date Harvesting, Packing House Management and Marketing Aspects " In FAO Plant Production and Protection Papers, 175-205. The Food and Agriculture Organization of the United Nations.
Hamada, J. S., Hashim, I. B., and Sharif, F. A. 2002. 'Preliminary analysis and potential uses of date pits in foods', Food Chemistry, 76: 135-37. DOI:10.1016/S0308-8146(01)00253-9
Hazzouri, K. M., Flowers, J. M., Visser, H. J., Khierallah, H. S. M., Rosas, U., Pham, G. M., Meyer, R. S., Johansen, C. K., Fresquez, Z. A., Masmoudi, K., Haider, N., El Kadri, N., Idaghdour, Y., Malek, J. A., Thirkhill, D., Markhand, G. S., Krueger, R. R., Zaid, A., and Purugganan, M.D. 2015. 'Whole genome re-sequencing of date palms yields insights into diversification of a fruit tree crop', Nature Communications, 6: 8824. DOI:10.1038/ncomms9824
Hussein, A., and Ali, H. 2017. 'Chemical and technological properties of improved snacks from oat and date seeds composite flour', American Journal of Food Technology, 12: 201-08. DOI:10.3923/AJFT.2017.201.208
Jaafar, K. A. 2010. "Biogas production by anaerobic digestion of date palm pulp waste." Al-Khwarizmi Engineering Journal, 6: 14-20.
Jadhav, A., Holkar, C., Goswami, A., Pandit, A., and Pinjari, D. 2016. 'Acoustic cavitation as a novel approach for extraction of oil from waste date seeds', ACS Sustainable Chemistry & Engineering, 4. DOI:10.1021/acssuschemeng.6b00753
Jridi, M., Souissi, N., Ben Salem, M., Ayadi, M. A., Nasri, M., and Azabou, S. 2015. 'Tunisian date (Phoenix dactylifera L.) by-products: Characterization and potential effects on sensory, textural and antioxidant properties of dairy desserts', Food Chemistry, 188: 8-15. DOI:https://doi.org/10.1016/j.foodchem.2015.04.107
Kalbouneh, S. 2011. 'Cropping patterns as a tool for water resource management in Palestine: date palm cultivation in Jiftlik, Jordan Valley', International Journal of Environmental Studies, 68: 447-60. DOI:10.1080/00207233.2011.582703
Kazemalilou, S., and Alizadeh, A. 2017. 'Optimization of sugar replacement with date syrup in prebiotic chocolate milk using response surface methodology', Korean Journal for Food Science of Animal Resources, 37: 449-55. DOI:10.5851/kosfa.2017.37.3.449
Khiari, R., Dridi-Dhaouadi, S., Aguir, C., and Mhenni, M. F. 2010. 'Experimental evaluation of eco-friendly flocculants prepared from date palm rachis', Journal of Environmental Sciences, 22: 1539-43. DOI:https://doi.org/10.1016/S1001-0742(09)60286-2
Khiyami, M., Alfadul, S., and Bahkali, A. 2011. 'Polyhydroxyalkanoates production via Bacillus PCS biofilm and date palm syrup', Journal of medicinal plant research, 5: 3312-20. DOI: https://doi.org/10.5897/JMPR.9001026
King, J. W. 2014. 'Modern Supercritical Fluid Technology for Food Applications', Annual Review of Food Science and Technology, 5: 215-38. DOI:10.1146/annurev-food-030713-092447
Lattieff, F. 2016. 'A study of biogas production from date palm fruit wastes', Journal of Cleaner Production, 139: 1191-95. DOI:https://doi.org/10.1016/j.jclepro.2016.08.139
Lecheb, F., and Benamara, S. 2015. 'Feasibility study of a cosmetic cream added with aqueous extract and oil from date (Phoenix dactylifera L.) fruit seed using experimental design', Journal of cosmetic science, 66: 1-12. PMID: 27125011
Lobo, G., Yahia, E., and Kader, A. 2013. 'Biology and Postharvest Physiology of Date Fruit.' in Muhammad Siddiq; Salah M. Aleid; Adel A. Kader (ed.), Dates: Postharvest Science, Processing Technology and Health Benefits (John Wiley & Sons). Pp 57-80. DOI:10.1002/9781118292419.ch3
Mahgoub, O., Kadim, I. T., Al-Ajmi, D. S, Al-Saqry, N. M., Al-Abri, A. S., Richie, A. R., Annamalai, K., and Forsberg, N. E.. 2004. 'The effects of replacing Rhodes grass (Chloris gayana) hay with Ghaf (Prosopis cineraria) pods on the performance of Omani native sheep', Tropical Animal Health and Production, 36: 281-94. DOI:10.1023/B:TROP.0000016829.63985.2c
Mahgoub, O., Kadim, I., Johnson, E., Srikandakumar, A., Al-Saqri, N., Al-Abri, A., and Ritchie, A. 2005. 'The use of concentrate containing Meskit (Prosopis juliflora) pods and date palm by-products to replace commercial concentrate in diets of Omani sheep', Animal Feed Science and Technology, 120. DOI:10.1016/j.anifeedsci.2005.01.011
Manickvasagan, A., Chandini, S., and Al Attabi, Z. 2018. 'Effect of sugar replacement with date paste and date syrup on texture and sensory quality of kesari (traditional Indian dessert)', Journal of Agricultural and Marine Sciences, 22: 67. DOI:10.24200/jams.vol22iss1pp67-74
Martín-Sánchez, A. M., Ciro-Gómez, G., Sayas, E., Vilella-Esplá, J., Ben-Abda, J., and Pérez-Álvarez, J. Á. 2013. 'Date palm by-products as a new ingredient for the meat industry: Application to pork liver pâté', Meat Science, 93: 880-87. DOI:https://doi.org/10.1016/j.meatsci.2012.11.049
Mohamed, S., Awad, M., and Al-qurashi A. 2014. 'Antioxidant activity, antioxidant compounds, antioxidant andhydrolytic enzymes activities of ‘Barhee’ dates at harvest and duringstorage as affected by pre-harvest spray of some growth regulators', Scientia Horticulturae, 167: 91-99. DOI:10.1016/j.scienta.2014.01.003
Mrabet, A., Rodríguez-Gutiérrez, G., Rodríguez-Arcos, R., Guillén-Bejarano, R., Ferchichi, A., Sindic, M., and Jiménez-Araujo, A. 2016. 'Quality characteristics and antioxidant properties of muffins enriched with date fruit (Phoenix Dactylifera L.) fiber concentrates', Journal of Food Quality, 39: 237-44. DOI:10.1111/jfq.12194
Myhara, R. M., Byerley, D. J., Mahgoub, O., and Chesworth, J. M.. 2000. 'Effects of testicular status and feeding diets containing date palm by-product on the sensory attributes of Omani lamb meat', Small Ruminant Research, 38: 57-61. DOI:https://doi.org/10.1016/S0921-4488(00)00130-9
Nancib, N., Nancib, A., and Boudrant, J. 1997. 'Use of waste date products in the fermentative formation of baker's yeast biomass by Saccharomyces cerevisiae', Bioresource Technology, 60: 67-71. DOI:https://doi.org/10.1016/S0960-8524(97)00004-7
Nasser, R., and Al-Mefarrej, H. 2011. 'Midribs of date palm as a raw material for wood-cement composite industry in Saudi Arabia', World Applied Sciences Journal, 15. Corpus ID: 17057113
Nehdi, I., Omri, S., Khalil, M. I., and Al-Resayes, S. I. 2010. 'Characteristics and chemical composition of date palm (Phoenix canariensis) seeds and seed oil', Industrial Crops and Products, 32: 360-65. DOI:https://doi.org/10.1016/j.indcrop.2010.05.016
Nehdi, I., Sbihi, H., Tan, C., Rashid, U., and Al-Resayes, S. 2018. 'Chemical composition of date palm ( Phoenix dactylifera L .) seedo from six Saudi Arabian cultivars: Seed oil from Saudi Arabian cultivars', Journal of Food Science, 83. DOI:10.1111/1750-3841.14033
Platat, C., Habib, H. M., Hashim, I. B., Kamal, H., AlMaqbali, F., Souka, U., and Ibrahim, W. H.. 2015. 'Production of functional pita bread using date seed powder', Journal of food science and technology, 52: 6375-84. DOI:10.1007/s13197-015-1728-0
Puri, A., Sahai, R., Singh, K. L., Saxena, R. P., Tandon, J. S., and Saxena, K. C.. 2000. 'Immunostimulant activity of dry fruits and plant materials used in indian traditional medical system for mothers after child birth and invalids', Journal of Ethnopharmacology, 71: 89-92. DOI:10.1016/s0378-8741(99)00181-6
Radwan, H., Alanazi, F., Taha, E., Dardir, H., Moussa, I., and Alsarra, I. 2010. 'Development of a new medium containing date syrup for production of bleomycin by Streptomyces mobaraensis ATCC 15003 using response surface methodology', African Journal of Biotechnology, 9: 5450-59. DOI:https://doi.org/10.5897/AJB10.185
Razavi, S. M. A., Najafi, M. B. H., and Alaee, Z. 2007. 'The time independent rheological properties of low fat sesame paste/date syrup blends as a function of fat substitutes and temperature', Food Hydrocolloids, 21: 198-202. DOI:https://doi.org/10.1016/j.foodhyd.2006.03.008
Riahi, K., Ben Mammou, A., and Ben Thayer, B. 2009. 'Date-palm fibers media filters as a potential technology for tertiary domestic wastewater treatment', Journal of Hazardous Materials, 161: 608-13. DOI:https://doi.org/10.1016/j.jhazmat.2008.04.013
Saadaoui, N., Rouilly, A., Fares, K., and Rigal, L. 2013. 'Characterization of date palm lignocellulosic by-products and self-bonded composite materials obtained thereof', Materials & Design, 50: 302-08. DOI:https://doi.org/10.1016/j.matdes.2013.03.011
Sánchez-Zapata, E., Fernández-López, J., Peñaranda, M., Fuentes-Zaragoza, E., Sendra, E., Sayas, E., and Pérez-Alvarez, J. A. 2011. 'Technological properties of date paste obtained from date by-products and its effect on the quality of a cooked meat product', Food Research International, 44: 2401-07. DOI:https://doi.org/10.1016/j.foodres.2010.04.034
Sayed, A. F., Kholif, A. and Gad, A. S. 2010. 'Evaluation of the nutritional value of functional yogurt resulting from combination of date palm syrup and skim milk', American Journal of Food Technology, 5. DOI:10.3923/ajft.2010.250.259
Shi, J., Shahidi, F., and Ho, C.-T. 2005. Asian functional foods (CRC Press).
Siddiq, M., Greiby, I. 2013. 'Overview of date fruit production, postharvest handling, processing, and nutrition.' in Muhammad Siddiq; Salah M. Aleid; Adel A. Kader (ed.), Dates: Postharvest Science, Processing Technology and Health Benefits (John Wiley & Sons). Pp 1-28. DOI: 10.1002/9781118292419.ch1
Taleb, H., Maddocks, S. E., Morris, R. K. and Kanekanian, A.D. 2016. 'The antibacterial activity of date syrup polyphenols against S. aureus and E. coli', Frontiers in microbiology, 7: 198-98. DOI:10.3389/fmicb.2016.00198
Tammam, A. A., Mansour, A. I. A., Salman, K. H., and El-Gazzar, F. E. 2013. 'Preparation, and properties of bio-yoghurt containing date syrup (dibis)', Egyptian Journal of Dairy Science, 41: 69-76.
Tammam, A. A., Salman, K. H., and Abd-El-Rahim, A. M. 2014. 'Date syrup as a sugar substitute and natural flavour agent in ice cream manufacture', Journal of Food and Dairy Sciences, 5: 625-32.
Tang, Z. X., Shi, L. E., and Aleid, S. M.. 2013. 'Date fruit: chemical composition, nutritional and medicinal values, products', Journal of the Science of Food and Agriculture, 93: 2351-61. DOI:10.1002/jsfa.6154
Tiwari, B. K., Brunton, N. P., and Brennan, C. 2013. Handbook of plant food phytochemicals: sources, stability and extraction (John Wiley & Sons).
Vandepopuliere, J. M., Al-Yousef, Y., and Lyons, J. J. 1995. 'Dates and date pits as ingredients in broiler starting and coturnix quail breeder diets', Poultry Science, 74: 1134-42. DOI:https://doi.org/10.3382/ps.0741134
Vinatoru, M. 2001. 'An overview of the ultrasonically assisted extraction of bioactive principles from herbs', Ultrasonics Sonochemistry, 8: 303-13. DOI:https://doi.org/10.1016/S1350-4177(01)00071-2
Yangılar, F. 2015. 'Mineral contents and physical, chemical, sensory properties of ice cream enriched with date fibre', Italian Journal of Food Science, 27: 397-406. DOI:10.14674/1120-1770/ijfs.v283
Yousuf, R. G., and Winterburn, J. B.. 2017. 'Waste date seed oil extract as an alternative feedstock for Poly(3-hydroxybutyrate) synthesis', Biochemical Engineering Journal, 127: 68-76. DOI:https://doi.org/10.1016/j.bej.2017.08.007
.