Zhang, B., Hui, Y., chen, H., & wan, H. (2017). OPTIMIZATION OF CRYOPROTECTANTS FOR STREPTOCOCCUS THERMOPHILUS DURING FREEZE-DRYING USING BOX-BEHNKEN EXPERIMENTAL DESIGN OF RESPONSE SURFACE METHODOLOGY. Emirates Journal of Food and Agriculture, 29(4), 256–263. https://doi.org/10.9755/ejfa.2016-07-960