Food and Fermentation Industries >

2011 , Vol. 37 >Issue 02: 176 - 178

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.2011.02.026

Food and Fermentation Industries

Determination of γ-polyglutamic Acid Concentration by a Viscosity-assaying Method

  • Yao Jun ,
  • Sun Rong-bin ,
  • Wei Qin-jun ,
  • Cao Xin ,
  • Lu Ya-jie
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Online published: 2011-02-25

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Abstract

Abstract The viscosity of γ-polyglutamic acid(γ-PGA) solution at different concentration was determined by ubbelohde viscometer.The intrinsic viscosity [η] of γ-PGA was 7.830 L/g calculated from Huggins & Kraemer equation.Meanwhile,the correlation of relative viscosity(ηr),specific viscosity(ηsp) and the γ-PGA concentration in aqueous solution was deduced.It was expected that the γ-PGA concentration could be facilely and precisely attained by the viscosity-assaying method.

Key words： γ-polyglutamic acid; viscosity; concentration

Cite this article

Yao Jun , Sun Rong-bin , Wei Qin-jun , Cao Xin , Lu Ya-jie . Determination of γ-polyglutamic Acid Concentration by a Viscosity-assaying Method[J]. Food and Fermentation Industries, 2011 , 37(02) : 176 -178 . DOI: 10.13995/j.cnki.11-1802/ts.2011.02.026

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