Analysis of Poly-β-Hydroxybutyrate in Rhizobium japonicum Bacteroids by Ion-Exclusion High-Pressure Liquid Chromatography and UV Detection

Author:

Karr Dale B.1,Waters James K.1,Emerich David W.1

Affiliation:

1. Department of Biochemistry and Interdisciplinary Plant Biochemistry-Physiology Group, University of Missouri-Columbia, Columbia, Missouri 65211

Abstract

Ion-exclusion high-pressure liquid chromatography (HPLC) was used to measure poly-β-hydroxybutyrate (PHB) in Rhizobium japonicum bacteroids. The products in the acid digest of PHB-containing material were fractionated by HPLC on Aminex HPX-87H ion-exclusion resin for organic acid analysis. Crotonic acid formed from PHB during acid digestion was detected by its intense absorbance at 210 nm. The Aminex-HPLC method provides a rapid and simple chromatographic technique for routine analysis of organic acids. Results of PHB analysis by Aminex-HPLC were confirmed by gas chromatography and spectrophotometric analysis.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference20 articles.

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5. Gutschick V. P. 1980. Energy flows in the nitrogen cycle especially in fixation p. 17-27. In W. E. Newton and W. H. Orme-Johnson (ed.) Nitrogen fixation vol. I. University Park Press Baltimore.

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