Enzyme Activities and Protein Composition of Henan Dairy Goat Milk

doi:10.7506/spkx1002-6630-201111021

Abstract

Abstract: The activities of four enzyme (γ-glutamyl transpeptidase, γ-GT; alkaline phosphatase, AKP; peroxidase, LP; amylase, AMY) in Henan dairy goat milk (a local variety of dairy goat in the west part of Henan province) was measured and the milk protein composition was determined by SDS-PAGE in this study. The results showed that the activities of r-GT, AKP, LP and AMY in colostrum and common milk of Henan dairy goat were 322.46 U/100 mL and 247.71 U/100 mL, 248.62 U/100 mL and 200.14 U/100 mL, 281.76 U/mL and 205.07 U/mL, and 71.20 U/100 mL and 22.15 U/100 mL, respectively. The activity of AKP was significantly higher in colostrums milk compared to common milk (0.01

Key words: dairy goat, milk, enzyme, protein composition

CLC Number:

TS252.2

WANG Yu-qin，REN Guo-yan，YU Hong-ye，WANG Chao-li，QI Yan-xia，WU Qiu-jue，WANG Zhan-bin. Enzyme Activities and Protein Composition of Henan Dairy Goat Milk[J]. FOOD SCIENCE, 2011, 32(11): 93-96.

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Enzyme Activities and Protein Composition of Henan Dairy Goat Milk

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