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 textu...
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