Enhanced poly(γ-glutamic acid) production by H2O2-induced reactive oxygen species in the fermentation ofBacillus subtilisNX-2

Volume: 63, Issue: 5, Pages: 625 - 632
Published: Sep 21, 2015
Abstract
Effects of reactive oxygen species (ROS) on cell growth and poly(γ-glutamic acid) (γ-PGA) synthesis were studied by adding hydrogen peroxide to a medium of Bacillus subtilis NX-2. After optimizing the addition concentration and time of H2O2, a maximum concentration of 33.9 g/L γ-PGA was obtained by adding 100 µM H2O2 to the medium after 24 H. This concentration was 20.6% higher than that of the control. The addition of diphenyleneiodonium...
Paper Details
Title
Enhanced poly(γ-glutamic acid) production by H2O2-induced reactive oxygen species in the fermentation ofBacillus subtilisNX-2
Published Date
Sep 21, 2015
Volume
63
Issue
5
Pages
625 - 632
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