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. 2008 Jun 13;48(2):274–278. doi: 10.1007/s12088-008-0026-1

Strain improvement of Aspergillus niger for the enhanced production of asperenone

C Chidananda 1, C Mohan Kumar 1, A P Sattur 1,✉
PMCID: PMC3450179  PMID: 23100720

Abstract

The enhancement of production of asperenone (Fig. 1), an inhibitor of lipoxygenase and human platelet aggregation from Aspergillus niger CFTRI 1105, was achieved by UV and nitrous acid mutagenesis. Nitrous acid mutants exhibited increased inhibitor production when compared with UV irradiated mutants. I N 41 a first-generation nitrous acid mutant produced 5.1 fold increased asperenone over parent strain. Mutant II N 31 obtained by second-generation nitrous acid treatment produced 60.3 mg asperenone/g biomass, which was 131 fold increase when compared to first generated mutant I N 41 and 670 fold increase over the parent strain. This mutant was stable for several generations on production medium.

Keywords: Asperenone, Aspergillus niger, Mutagenesis, Nitrous acid, UV irradiation

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