Rapid degradation of ferulic acid via 4-vinylguaiacol and vanillin by a newly isolated strain of Bacillus coagulans

Autor: Hemraj Nandanwar, K. G. Gupta, R M Vohra, Prateek Sharma, B. Karmakar, Ranbir Chander Sobti
Rok vydání: 2000
Předmět:
Zdroj: Journal of Biotechnology. 80:195-202
ISSN: 0168-1656
DOI: 10.1016/s0168-1656(00)00248-0
Popis: A new strain Bacillus coagulans BK07 was isolated from decomposed wood-bark, based on its ability to grow on ferulic acid as a sole carbon source. This strain rapidly decarboxylated ferulic acid to 4-vinylguaiacol, which was immediately converted to vanillin and then oxidized to vanillic acid. Vanillic acid was further demethylated to protocatechuic acid. Above 95% substrate degradation was obtained within 7 h of growth on ferulic acid medium, which is the shortest period of time reported to date. The major degradation products, was isolated and identified by thin-layer chromatography, high performance liquid chromatography and 1H-nuclear magnetic resonance spectroscopy were 4-vinylguaiacol, vanillin, vanillic acid and protocatechuic acid.
Databáze: OpenAIRE