| Lanzhou WeiRI Bio-engineering Co., Ltd is mainly engaged in the research 、 development 、 manufacture and sale of bioengineering products .The main products ------ WeiRi-brand NISIN is a polypeptide with 34 amino acids residues products by lactococcue lactic. It could enhance greatly food quality and increase the food nutritional value . Nisin could significantly extend storage time of food in the different condition. Forthermore, NISIN is not only improve the nutritional 、value 、appearance、 flavor and texture of foods ,but also decrease the required temperature and shorten the time at food heat processing . It is a natural 、 nonpoisonous and high efficacious food preservative.
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