title: A new approach to microbial production of gallic acid.
abstract: In a new approach to microbial gallic acid production by Aspergillus fischeri MTCC 150, 40gL(-1) of tannic acid was added in two installments during the bioconversion phase of the process (25gL(-1) and 15gL(-1) at 32 and 44h respectively). The optimum parameters for the bioconversion phase were found to be temperature: 35°C, pH: slightly acidic (3.3-3.5), aeration: nil and agitation: 250 rpm. A maximum of 71.4% conversion was obtained after 71h fermentation with 83.3% product recovery. The yield was 7.35 g of gallic acid per g of biomass accumulated and the fermenter productivity was 0.56 g of gallic acid produced per liter of medium per hour.
authors.affiliation: School of Biotechnology, D.A.V.V. , Indore - 452001 , India.
authors.forename: Bhakti
authors.initials: B
authors.lastname: Bajpai
authors.forename: Shridhar
authors.initials: S
authors.lastname: Patil
keywords: Aspergillus fischeri; gallic acid; tannase; tannic acid
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