High-purity conjugated linoleic acid yak yogurt and making method thereof

Abstract

The invention discloses a high-purity conjugated linoleic acid yak yogurt and a making method thereof, and relates to the field of dairy products. The making method comprises the steps of firstly, conducting enzymatic hydrolysis on fat and protein in yak milk to convert the fat and protein into small molecule compounds which are more beneficial to absorption, and then fermenting enzymatic hydrolysate. The enzymatic hydrolysis in this way achieves two effects. On one hand, the content of the fat and protein in the yak milk is higher than that of conventional milk, and to guarantee the mouthfeelof the yak milk, the content needs to be lowered to be equivalent to that of the conventional milk; on the other hand, when lipase is subjected to enzymatic hydrolysis, porcine pancreatic lipase is selected for enzymatic hydrolysis, since the porcine pancreatic lipase has specificity to the fat containing unsaturated linoleic acid structures, conjugated linoleic acid is released from the fat structures, and the whole content of the conjugated linoleic acid in the yak milk is increased. The making method is easy to operate, the prepared yak yogurt has rich milk fragrance and excellent mouthfeel, and the content of the conjugated linoleic acid is high. The high-purity conjugated linoleic acid yak yogurt has significant effects of preventing cancer, resisting oxidation and lowering blood fat, is high in nutritional value and suitable for being drunk by people for a long term.

Description

technical field [0001] The invention relates to the field of dairy products, in particular to a high-purity conjugated linoleic acid yak yoghurt and a preparation method thereof. Background technique [0002] Yak is the main livestock species in the Qinghai-Tibet Plateau, and the yak milk it produces accounts for 90% of the milk consumption in the Qinghai-Tibet Plateau. Compared with other milks, yak milk has higher content of fat, protein, lactose, vitamins and essential amino acids, more types of fatty acids, and lower cholesterol content. It is known as "the best in milk". Especially in recent years, the efficacy of conjugated linoleic acid has been gradually recognized by people. As one of the milk varieties with the highest content of conjugated linoleic acid, yak milk has attracted more and more attention. [0003] Conjugated linoleic acid is a general term for a series of octadecadienoic acids containing conjugated double bonds. Studies have shown that conjugated li...

AI Technical Summary

Problems solved by technology

In order for conjugated linoleic acid (CLA) to play its potential role in human health, the daily intake of conjugated linoleic acid (CLA) for humans needs to be at least 3g per day. In Western countries where dairy products and animal products are staple foods , the actual per capita intake is less than one-third of the recommended amount. Generally speaking, it is still far from meeting people's needs. The development of high-purity conjugated linoleic acid (CLA) yak yogurt has broad market prospects

[0004] In the prior art, if you want to increase the content of conjugated linoleic acid in dairy products, you usually use external addition, but this method will increase the purchase of additional conjugated linoleic acid The cost of oleic acid

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