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Reference type: Journal
Authors: Aithal M, Belur PD
Article Title: Enhancement of propyl gallate yield in nonaqueous medium using novel cell-associated tannase of Bacillus massiliensis.
Publication date: 2013
Journal: Preparative Biochemistry and Biotechnology
Volume: 43
Issue: (5)
Page numbers: 445-455.
DOI: 10.1080/10826068.2012.745873

Abstract: Enzymatic synthesis of propyl gallate in organic solvent was studied using cell-associated tannase (EC 3.1.1.20) of Bacillus massiliensis. Lyophilized biomass showing tannase activity was used as the biocatalyst. The effects of solvent, surfactant treatment, and bioimprinting on the propyl gallate synthesis were studied and subsequently optimized. Among various solvents, benzene followed by hexane was found to be the most favorable. Treatment of the biocatalyst with Triton X-100 at a lower concentration (0.2% w/v), before lyophilization, increased the propyl gallate yield by 24.5% compared to the untreated biocatalyst. The biocatalyst was imprinted with various concentrations of gallic acid and tannic acid. Biocatalyst imprinted with tannic acid showed 50% enhancement in the propyl gallate yield compared to the non-imprinted biocatalyst
Template and target information: bioimprinting, propyl gallate
Author keywords: bioimprinting, cell-associated tannase, Gallic acid, lyoprotectants, nonaqueous medium, Propyl gallate, Tannic acid

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