Distribution of Odd and Branched Chain Fatty Acids (OBCFA) of Yak Milk from Different Lactations

doi:10.7506/spkx1002-6630-201506037

Abstract

Abstract:

Yak milk samples from the full lactation (June, July, and August) and half lactation periods (March) at altitudes
ranging from 2 835 to 3 719 meters were collected and analyzed by gas chromatography-mass spectrometry (GC-MS) for
the distribution of odd and branched fatty acids (OBCFAs) at different lactations. The results showed that no significant
differences in OBCFAs of yak milk samples were found between different regions (Guoluo, Hainan, Wunan, and Qilian).
For the half lactation period, significant difference in odd chain fatty acids (OCFAs) (P < 0.05) and extremely significant
differences in branched chain fatty acids (BCFAs) (P < 0.001) were found among different regions. The concentrations of
both OCFAs and OBCFAs were the highest in the half lactation period (March) of yak milk, and significantly higher than
those of cow milk at both lactations.

Key words: yak milk, odd and branched chain fatty acids, full lactation, half lactation

CLC Number:

TS252

SUN Wancheng, LUO Yihao, LIU Xiangjun. Distribution of Odd and Branched Chain Fatty Acids (OBCFA) of Yak Milk from Different Lactations[J]. FOOD SCIENCE, doi: 10.7506/spkx1002-6630-201506037.

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Distribution of Odd and Branched Chain Fatty Acids (OBCFA) of Yak Milk from Different Lactations

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