Method for determining if common cow milk has been doped in yak milk product and primer dedicated therefor

Abstract

The invention relates to a method for checking the common milk in yak milk, wherein said method comprises that: (1), using the DNA extracted from the yak milk as template, using one couple of inductors whose nucleotide sequences are the sequence 1 and sequence 2 of sequence list to process PCR reaction; (2), checking if the expand product of PCR has DNA band, if there is, the yak milk is doped with common milk. The invention has high accuracy.

Description

technical field [0001] The invention relates to a method for identifying whether common milk is mixed in yak milk products and special primers thereof. Background technique [0002] Yak is one of the rare domestic animals with extremely limited geographical distribution. Compared with ordinary milk, yak milk and its milk products are famous for their rarity and high nutritional value. Therefore, there have been some unscrupulous traders who seek higher profits by mixing ordinary milk in yak milk, which greatly damages the interests of consumers. [0003] Yaks mainly live in the cold and semi-humid areas of plateaus, alpines, and subalpines at an altitude of 2000-4500m. Chinese yaks account for more than 90% of the world's yaks, and they are mainly distributed in the center of the Qinghai-Tibet Plateau and its eastern edge. The distribution of yaks is extremely limited. As a rare breed of livestock, yaks can provide people with milk, meat, fat, wool, down, leather and other...

AI Technical Summary

Problems solved by technology

Therefore, there have been some unscrupulous traders who mixed ordinary milk into yak milk to obtain higher profits, which greatly damaged the interests of consumers.

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