Method for processing yak bones by biotechnology

Abstract

The invention relates to a method for processing yak bones by biotechnology. The method comprises the following steps: step 1, crushing yak bones to 3cm-6cm, putting the crushed yak bones into a cooking pot and performing high temperature and high pressure extraction to obtain oil-containing bone soup and oil-containing bone dregs; step 2, preparing the oil-containing bone soup obtained in the step 1 into ossein oligopeptide, and specifically, sequentially performing the following steps: soup-oil separation, protease hydrolysis, tubular centrifugal separation, filtration by an ultrafiltrationmembrane, discoloration and deodorization, concentration by a nanofiltration membrane and centrifugal spray drying; and step 3, preparing the oil-containing bone dregs obtained in the step 1 into superfine fresh bone meal, and specifically, sequentially performing the following steps: primary crushing, secondary crushing, ultra-high-pressure homogenization, protease hydrolysis, horizontal centrifugal separation, thick pulp dilution and centrifugal spray drying.

Description

technical field [0001] The invention relates to the field of extraction of bioactive substances, in particular to a method for processing yak bones through biotechnology. Background technique [0002] Yak is a very precious and rare livestock species in the world. It is mainly distributed in the Qinghai-Tibet Plateau and its adjacent alpine areas. It is a famous landscape cattle species on the "roof of the world". Yaks have strong adaptability to the ecological environment conditions of alpine grasslands, and can live freely and reproduce in the harsh environmental conditions of thin air, short pasture growth period, and cold climate. There are more than 15 million yaks in the world, accounting for only 1% of the cattle family. Among them, there are more than 14 million yaks in China, accounting for more than 95% of the total number of yaks in the world. [0003] Yaks eat non-polluted pastures on the Qinghai-Tibet Plateau, and the by-products of yak bones after processing ...

AI Technical Summary

Problems solved by technology

The patent number is CN104187782 A, a production method of ultra-fine yak bone powder. The yak bone is drained after high-temperature and high-pressure treatment, and then dried and crushed to make bone powder. There is no degreasing process.

The patent number is CN105876660 A, a method for preparing yak and sheep bone powder by enzymatic method, and the patent number is CN102871124 A, a method for extracting low-fat bone calcium and osteocalcin. Both patents use lipase to degrease, and the fat is enzymatically hydrolyzed It turns into soluble fatty acid and enters the extract to mix with collagen, which brings difficulties to the subsequent purification of collagen. Moreover, the bone has not only undergone primary crushing, and the lipase cannot fully contact the fat in the bone, so it cannot completely remove the fat.

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