Proposed Oxidative Metabolic Pathway for Polypropylene Glycol in Sphingobium sp. Strain PW-1

Xiaoping HU; Xin LIU; Akio TANI; Kazuhide KIMBARA; Fusako KAWAI

doi:10.1271/bbb.70749

This article has now been updated. Please use the final version.

Proposed Oxidative Metabolic Pathway for Polypropylene Glycol in Sphingobium sp. Strain PW-1

Xiaoping HU, Xin LIU, Akio TANI, Kazuhide KIMBARA, Fusako KAWAI

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Keywords: polypropylene glycol (PPG), PPG-assimilating Sphingobium sp. strain PW-1, carbonylated product of PPG, PPG dehydrogenase, oxidative metabolic pathway of PPG

JOURNAL FREE ACCESS Advance online publication

Article ID: 70749

DOI https://doi.org/10.1271/bbb.70749

The final version of this article is now available: Vol. 72 (2008) , No. 4 p.1115

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Abstract

Polypropylene glycol (PPG)-assimilating Sphingobium sp. strain PW-1 was grown on 0.5% PPG 700. PPG and its metabolites were analyzed by MALDI-TOF mass spectrometry. An oxidized form of a terminal alcohol group appeared with each molecular species as a metabolite. Cell-free extract showed PPG dehydrogenase activity. In this way, the oxidative metabolic pathway for PPG was confirmed.

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