| Title: | Bioconversion of lutein to form aroma compounds by Pantoea dispersa |
| Author(s): | Zhao Y; Zhong GF; Yang XP; Hu XM; Mao DB; Ma YP; |
| Address: | "School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, China" |
| DOI: | 10.1007/s10529-015-1844-y |
| ISSN/ISBN: | 1573-6776 (Electronic) 0141-5492 (Linking) |
| Abstract: | "OBJECTIVES: To investigate the conversion of lutein, a carotenoid, to aroma compounds by Pantoea dispersa Y08, a lutein-degrading bacterium isolated from marigold flower residue. Bioconversion conditions, including substrate concentration, applied co-solvent and reaction time, were optimized. RESULTS: A maximum biodegradation yield of 80 % for lutein at 10 g/l was achieved. The intermediate, 3-hydroxy-beta-ionone, and final beta-ionone products were revealed by GC-MS. A bioconversion pathway of lutein is proposed to involve cleavage at the 9-10 double bond position, followed by de-hydroxylation at the 3-hydroxy position. CONCLUSIONS: This is the first report of the ability of a bacterium, P. dispersa, to sequentially convert lutein to 3-hydroxy-beta-ionone and then beta-ionone" |
| Keywords: | Biotransformation Gas Chromatography-Mass Spectrometry Lutein/*metabolism Metabolic Networks and Pathways Norisoprenoids/*metabolism Pantoea/*metabolism Volatile Organic Compounds/*metabolism; |
| Notes: | "MedlineZhao, Yue Zhong, Gui Fang Yang, Xue Peng Hu, Xian Mei Mao, Duo Bin Ma, Yu Ping eng Research Support, Non-U.S. Gov't Netherlands 2015/06/13 Biotechnol Lett. 2015 Aug; 37(8):1687-92. doi: 10.1007/s10529-015-1844-y. Epub 2015 Jun 12" |
