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| Study on Physicochemical Properties of Yak Blood |
| Yu Haiyan;Luo Yongkang |
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Abstract Studied the property of yak blood in terms of processing and preservation in order to explore the resource of yak blood in Qinghai.The research indicated that there is a linear relationship between plasma separated out and time in gravity sedimentation of yak blood.The plasma subsided 50% of the whole blood when subsided for 72h,so yak blood should not be separated with gravity sedimentation method.Analyzed the content of moisture, ash and protein.The protein content of the whole blood,plasma and red cells respectively are 15.5±0.8%,6.9±0.7%and32.7±0.9%. When they were stored in 12℃,they may be conserved for 72 hours and when they were stored in 25℃,they may be conserved only for 12 hours.The denaturation temperature of the whole blood,plasma and red cells respectively are 70℃,68℃and72℃,so yak blood should not sterilize with high temperature.
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2007, Vol. 21 
