title: Microbial Degradation of Chlorogenic Acid by a Sphingomonas sp. Strain.
abstract: In order to elucidate the metabolism of chlorogenic acid by environmental microbes, a strain of Sphingomonas sp. isolated from tobacco leaves was cultured under various conditions, and chlorogenic acid degradation and its metabolites were investigated. The strain converting chlorogenic acid was newly isolated and identified as a Sphingomonas sp. strain by 16S rRNA sequencing. The optimal conditions for growth and chlorogenic acid degradation were 37 °C and pH 7.0 with supplementation of 1.5 g/l (NH4)2SO4 as the nitrogen source and 2 g/l chlorogenic acid as the sole carbon source. The maximum chlorogenic acid tolerating capability for the strain was 5 g/l. The main metabolites were identified as caffeic acid, shikimic acid, and 3,4-dihydroxybenzoic acid based on gas chromatography-mass spectrometry analysis. The analysis reveals the biotransformation mechanism of chlorogenic acid in microbial cells isolated from the environment.
authors.affiliation: China Tobacco Henan Industrial Co. Ltd, Henan, Zhengzhou, 450000, People's Republic of China.
authors.forename: Yuping
authors.initials: Y
authors.lastname: Ma
authors.affiliation: State Key Laboratory of Microbial Metabolism, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China.
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Microbial Metabolism, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China.
authors.forename: Xueling
authors.initials: X
authors.lastname: Nie
authors.affiliation: China Tobacco Henan Industrial Co. Ltd, Henan, Zhengzhou, 450000, People's Republic of China.
authors.forename: Zhan
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: China Tobacco Henan Industrial Co. Ltd, Henan, Zhengzhou, 450000, People's Republic of China.
authors.forename: Zongcan
authors.initials: Z
authors.lastname: Yang
authors.affiliation: China Tobacco Henan Industrial Co. Ltd, Henan, Zhengzhou, 450000, People's Republic of China.
authors.forename: Cong
authors.initials: C
authors.lastname: Nie
authors.affiliation: State Key Laboratory of Microbial Metabolism, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China. tanghongzhi@sjtu.edu.cn.
authors.forename: Hongzhi
authors.initials: H
authors.lastname: Tang
mesh_terms: D001673:Biodegradation, Environmental; D001711:Biotransformation; D002726:Chlorogenic Acid / Q000737:chemistry / Q000378:metabolism*; D002851:Chromatography, High Pressure Liquid; D008401:Gas Chromatography-Mass Spectrometry; D053858:Metabolic Networks and Pathways; D055442:Metabolome; D013056:Spectrophotometry, Ultraviolet; D020578:Sphingomonas / Q000254:growth & development / Q000378:metabolism*
chemical_list: D002726:Chlorogenic Acid
keywords: Chlorogenic acid; Degradation; Intermediate metabolites; Sphingomonas sp.