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Characterization and application of a native lactic acid bacterium isolated from tannery fleshings for fermentative bioconversion of tannery fleshings

Amit Kumar, Rai and Bhaskar, N. and Prakash, M. Halami (2009) Characterization and application of a native lactic acid bacterium isolated from tannery fleshings for fermentative bioconversion of tannery fleshings. Applied Microbiology and Biotechnology, 83. pp. 757-766.

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Abstract

Lactic acid bacteria (LAB) species isolated from limed and delimed tannery fleshings (TF) were evaluated for their fermentation efficiency and antibacterial property. The native LAB isolates efficiently fermented TF and resulted in a fermented mass with antioxidant properties, indicating their potential for effective eco-friendly bioconversion of TF. From among the LAB isolated, a proteolytic isolate showing better antimicrobial spectrum and reasonably good fermentation efficiency was identified as Enterococcus faecium HAB01 based on various biochemical and molecular tests. This isolate afforded a better degree of hydrolysis (81.36%) of TF than Pediococcus acidilactici (54.64%) that was previously reported by us. The bacteriocin produced by E. faecium was found to be antagonistic to several human pathogens including Listeria, Aeromonas, Staphylococcus and Salmonella. Further, E. faecium HAB01 bacteriocin was thermostable and had a molecular weight of around 5 kDa, apart from being stable at both acidic and alkaline conditions. The bacteriocin was unstable against proteases.

Item Type: Article
Uncontrolled Keywords: Tannery fleshings . Lactic acid bacteria . Antioxidant activity . Bacteriocin . Fermentation
Subjects: 600 Technology > 05 Chemical engineering > 04 Fermentation Technology
500 Natural Sciences and Mathematics > 07 Life Sciences > 04 Microbiology
Divisions: Meat Fish and Poultry Technology
Food Microbiology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 24 Feb 2010 09:31
Last Modified: 28 Dec 2011 10:13
URI: http://ir.cftri.com/id/eprint/9317

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