title: Bioconversion of lutein by Enterobacter hormaechei to form a new compound, 8-methyl-α-ionone.
abstract: OBJECTIVE
  To investigate the final product of the bioconversion of lutein by a novel lutein-degrading bacterium, Enterobacter hormaechei A20, and the kinetics of the process.
  
  
  RESULTS
  A new product, 8-methyl-α-ionone, was resolved by GC-MS. The compound was further identified by NMR. A conversion yield of 90% was achieved by E. hormaechei in 36 h with 10 g lutein l-1.
  
  
  CONCLUSIONS
  This is the first report of the bioconversion of lutein to form 8-methyl-α-ionone. A degradation pathway is proposed.
authors.affiliation: School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, China.
authors.forename: Guifang
authors.initials: G
authors.lastname: Zhong
authors.affiliation: School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, China.
authors.forename: Fangfang
authors.initials: F
authors.lastname: Wang
authors.affiliation: China Tobacco, Shandong Industrial Co. Ltd., Jinan, 250014, China.
authors.forename: Jianhong
authors.initials: J
authors.lastname: Sun
authors.affiliation: School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, China. happye1986@163.com.|Henan Provincial Collaborative Innovation Center for Food Production and Safety, Zhengzhou, 450002, China. happye1986@163.com.
authors.forename: Jianbin
authors.initials: J
authors.lastname: Ye
authors.affiliation: School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, China.|Henan Provincial Collaborative Innovation Center for Food Production and Safety, Zhengzhou, 450002, China.
authors.forename: Duobin
authors.initials: D
authors.lastname: Mao
authors.affiliation: School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, China.
authors.forename: Ke
authors.initials: K
authors.lastname: Ma
authors.affiliation: School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, China. yangxuepeng@zzuli.edu.cn.|Henan Provincial Collaborative Innovation Center for Food Production and Safety, Zhengzhou, 450002, China. yangxuepeng@zzuli.edu.cn.
authors.forename: Xuepeng
authors.initials: X
authors.lastname: Yang
mesh_terms: D001711:Biotransformation; D004754:Enterobacter / Q000378:metabolism*; D008401:Gas Chromatography-Mass Spectrometry; D014975:Lutein / Q000378:metabolism*; D053858:Metabolic Networks and Pathways; D045792:Norisoprenoids / Q000378:metabolism*; D013997:Time Factors
chemical_list: C000626302:8-methyl-alpha-ionone; D045792:Norisoprenoids; D014975:Lutein
keywords: 8-Methyl-α-ionone; Bioconversion; Enterobacter hormaechei; Lutein