El-Hawary, M., Salam, M., Aly, S., Amer, D. (2012). OPTIMIZATION OF UTILIZATION OF CALF RENNET AND ADULT BOVINE RENNET MIXTURES IN DOMIATI CHEESE MAKING. Journal of Food and Dairy Sciences, 3(9), 473-479. doi: 10.21608/jfds.2012.77738
M. Y. El-Hawary; M. A. Salam; Samar I. Aly; Dina A. Amer. "OPTIMIZATION OF UTILIZATION OF CALF RENNET AND ADULT BOVINE RENNET MIXTURES IN DOMIATI CHEESE MAKING". Journal of Food and Dairy Sciences, 3, 9, 2012, 473-479. doi: 10.21608/jfds.2012.77738
El-Hawary, M., Salam, M., Aly, S., Amer, D. (2012). 'OPTIMIZATION OF UTILIZATION OF CALF RENNET AND ADULT BOVINE RENNET MIXTURES IN DOMIATI CHEESE MAKING', Journal of Food and Dairy Sciences, 3(9), pp. 473-479. doi: 10.21608/jfds.2012.77738
El-Hawary, M., Salam, M., Aly, S., Amer, D. OPTIMIZATION OF UTILIZATION OF CALF RENNET AND ADULT BOVINE RENNET MIXTURES IN DOMIATI CHEESE MAKING. Journal of Food and Dairy Sciences, 2012; 3(9): 473-479. doi: 10.21608/jfds.2012.77738
OPTIMIZATION OF UTILIZATION OF CALF RENNET AND ADULT BOVINE RENNET MIXTURES IN DOMIATI CHEESE MAKING
Food scince and technology Department, Faculty of Agriculture , Tanta University
Abstract
Calf rennet has been used in Domiati cheese making for long times. Calf rennet is traditionally obtained from slaughtered calves. However, due to shortage of meat, calves were recommended to be fattened for two years. This cause a sharp decrease of calf rennet available. Researches have been trying to evaluate the applicability of calf rennet substitutes. These substitutes are : adult bovine rennet (ABR), microbial rennet from Mucor miehei (MR) and mixtures of calf rennet and adult bovine rennet at different ratio .
This study was intended to evaluate different close of rennet as alternative to Calf rennet in coagulant milk and factors affecting the enzymes activity.
Results showed that milk clotting time was positive correlated with sodium chloride concentration. But milk clotting time was inversely correlated with calcium chloride concentration and temperature. Milk clotting time was decreased as milk solids increased up to 12% under all treatments.