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Title of Journal: Appl Biochem Biotechnol

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Abbravation: Applied Biochemistry and Biotechnology

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Springer US

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DOI

10.1016/0014-4827(73)90078-5

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1559-0291

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Indigoids Biosynthesis from Indole by Two PhenolD

Authors: Jing Wang Xuwang Zhang Jiangli Fan Zhaojing Zhang Qiao Ma Xiaojun Peng
Publish Date: 2015/04/30
Volume: 176, Issue: 5, Pages: 1263-1276
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Abstract

In this study two phenoldegrading bacterial strains designated as PI1 and PI2 were isolated from activated sludge for the production of indigoids from indole According to the 16S ribosomal RNA rRNA gene sequence analysis strains PI1 and PI2 were identified as Pseudomonas sp and Acinetobacter sp respectively Liquid chromatography/timeofflight/mass spectrometry LC/TOF/MS was applied to analyze the metabolites during the biotransformation of indole by the phenoldegrading strains The results indicated that both strains could catalyze the formation of four indigoids with the same prominent molecular ion MH− peak at m/z 261067 and molecular formula of C16H10N2O2 including indigo and a purple product 27oxo1Hindol67Hylidene indolin3one Isatin and 7hydroxyindole were detected as the intermediates Thus the possible pathways for the production of indigoids from indole were proposed Subsequently the optimal conditions for the production of indigo from indole were determined using response surface methodology and 1182 ± 030 and 1719 ± 049 mg/L indigo were produced by strains PI1 and PI2 respectively The present study should provide potential candidates for microbial production of indigoidsThis work was supported by the National Natural Science Foundation of China No 21176040 the Program for New Century Excellent Talents in University No NCET130077 and the Fundamental Research Funds for the Central Universities No DUT14YQ107

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