产角蛋白酶菌株的筛选、鉴定和发酵特性的初步研究

Abstract

Abstract: A strain with high keratinolytic activity was obatained by casein plate firstly and feather as the sole carbon source and nitrogen source in submerged medium secondly.The strain S6 was identified as Bacillus licheniformis based on its morphologic and physicochemical characteristics.After fermenting 72 h in submerged culture,the Bacillus licheniformis S6 demonstrated highest keratinolytic activity and maximum of soluble protein, 186.8 U/mLand 160.87 μg/mL,respectively,which expresses that Bacillus subtilis S6 has a promising prospect in the degradation process of feather.

Key words: screen; identification; Bacillus licheniformis; keratinolytic activity; soluble protein

CLC Number:

GUO Gang;CHU Jie;WANG Jun-gao;LIU Ke-chun. Screening,Identification of a Strain with High Keratinase Production and the Primary Study of its Characterization of Fermentation[J]. , 2012, 39(3): 125-129.

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Screening,Identification of a Strain with High Keratinase Production and the Primary Study of its Characterization of Fermentation

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