The Influence of Different Carbon Sources to γ-PGA’s Molecular Weight Distribution

Jian Guang Wu; Jin Gu

doi:10.4028/www.scientific.net/AMR.287-290.1952

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The Influence of Different Carbon Sources to γ-PGA’s Molecular Weight Distribution

Abstract:

Poly (γ-glutamic acid) (γ-PGA) is a special anionic, water-soluble and high viscous polymer ^[1] which is condensed by glutamate via amide linkages between their a-amino and γ-carboxylic acid groups ^[2]. For its excellent characters, potential applications of γ-PGA have been of interest in the past few years in a broad range of industrial ﬁelds ^[3]. And the decision to application of γ-PGA will be done, depending on its’ molecular weight. So this article main expresses the influence of different carbon sources to γ-PGA’s molecular weight distribution. By SDS-PAGE, we found that the molecular weight distributions of biosynthetic γ-PGA were different in the different carbon sources. All the results showed that changing the carbon source of mediums did make the biosynthetic γ-PGA’s yield and molecular weight distribution been changed.

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Periodical:

Advanced Materials Research (Volumes 287-290)

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1952-1955

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.287-290.1952

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Online since:

July 2011

Authors:

Jian Guang Wu, Jin Gu

Keywords:

Molecular Weight (MW), SDS-PAGE, γ-PGA

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