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PROTEIN HYDROLYSATE, POLYPEPTIDE SOLUTION AND POLYPEPTIDE, PREPARATION METHOD AND USE THEREOF

机译:蛋白质水解物,多肽溶液和多肽,制备方法及其用途

摘要

The present invention provides methods for the preparation of protein hydrolysate, peptide solution and peptide from BSG. The wet BSG or BSG powder is dispersed in extract solution to prepare the crude BSG protein or the crude BSG protein solution. Preparing the crude BSG protein solution using the crude BSG protein and adjusting the pH to 6.5˜8.5, or adjusting the pH of the crude BSG protein solution to 6.5˜8.5. Then the solution is hydrolyzed with protease at 45° C. to 65° C. for 1 h to 5 h in a water bath shaker to prepare BSG protein hydrolysate. The protein hydrolysate is heated to inactivate the protease and centrifuged to obtain the peptide solution. The peptide solution is separated by gel filtration and each peak is collected and pooled together to obtain the peptide. The protein hydrolysate, peptide solution and peptide in the present invention are all prepared from BSG which is a natural product and available at low cost throughout the year. There is no harmful material used in the production process. The results of in vitro experiment suggest that BSG peptide prepared by this method shows a significantly hypoglycemic effect.
机译:本发明提供了从BSG制备蛋白质水解物,肽溶液和肽的方法。将湿的BSG或BSG粉末分散在提取液中以制备粗BSG蛋白或粗BSG蛋白溶液。使用粗BSG蛋白制备粗BSG蛋白溶液并将pH调节至6.5〜8.5,或将粗BSG蛋白溶液的pH调节至6.5〜8.5。然后将溶液在水浴振荡器中在45℃至65℃下用蛋白酶水解1小时至5小时以制备BSG蛋白水解物。加热蛋白质水解物以使蛋白酶失活,并离心以获得肽溶液。通过凝胶过滤分离肽溶液,并收集每个峰并汇集在一起​​以获得肽。本发明中的蛋白质水解物,肽溶液和肽均由BSG制备,BSG是天然产物,并且全年可廉价获得。生产过程中没有使用有害物质。体外实验结果表明,用该方法制备的BSG肽具有明显的降血糖作用。

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