Bioprocess development for the production of sonorensin by Bacillus sonorensis MT93 and its application as a food preservative

被引：19

作者：

Chopra, Lipsy ^{[1
]}

Singh, Gurdeep ^{[1
]}

Jena, Kautilya Kumar ^{[1
]}

Verma, Himanshu ^{[1
]}

Sahoo, Debendra K. ^{[1
]}

机构：

[1] CSIR, Biochem Engn Res & Proc Dev Ctr, Inst Microbial Technol, Chandigarh 160036, India

来源：

BIORESOURCE TECHNOLOGY | 2015年 / 175卷

关键词：

Bacillus sonorensis; Sonorensin; Optimization; Volumetric oxygen transfer coefficient; Biopreservative; RECOMBINANT ASPERGILLUS-NIGER; BACTERIOCIN PRODUCTION; OPTIMIZATION; PH; PURIFICATION; FERMENTATION; TEMPERATURE; COMPLEX; STRAIN; MEDIA;

D O I：

10.1016/j.biortech.2014.10.105

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Media composition and environmental conditions were optimized using statistical tools, Plackett Burman design and response surface methodology, to maximize the yield of a bacteriocin, named as sonorensin, from a new marine isolate Bacillus sonorensis MT93 showing broad spectrum of antimicrobial activity. Under optimized conditions, MT93 produced 15-fold higher yield of sonorensin compared to that under initial fermentation conditions. As oxygen supply is a critical parameter controlling growth and product formation in aerobic bioprocesses and used as a parameter for bioprocess scale up, the effects of oxygen transfer, in terms of volumetric oxygen transfer coefficient (k(L)a), on production of sonorensin was investigated using optimized medium composition in a bioreactor. Studies on effectiveness of sonorensin against Staphylococcus aureus and Listeria monocytogenes in fruit juice and as a preservative in pasteurized milk demonstrated its potential as a biopreservative in fruit products and shelf life extender of the pasteurized milk. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：358 / 366

页数：9

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