title: Synthesis of antioxidant propyl gallate using tannase from Aspergillus niger van Teighem in nonaqueous media.
abstract: Tannase from Aspergillus niger van Teighem has been used for synthesis of food additive antioxidant propyl gallate by direct transesterification of tannic acid. The optimized yield of 86% was obtained by using simultaneously pH tuned enzyme, immobilized on Celite and using the right amount of water in the non aqueous media.
authors.affiliation: Chemistry Department, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India.
authors.forename: Shweta
authors.initials: S
authors.lastname: Sharma
authors.forename: Munishwar N
authors.initials: MN
authors.lastname: Gupta
mesh_terms: D000975:Antioxidants / Q000138:chemical synthesis*; D001234:Aspergillus niger / Q000201:enzymology*; D002021:Buffers; D002265:Carboxylic Ester Hydrolases / Q000737:chemistry*; D002951:Citrates; D003470:Culture Media; D007692:Diatomaceous Earth; D004800:Enzymes, Immobilized; D006863:Hydrogen-Ion Concentration; D047348:Hydrolyzable Tannins / Q000737:chemistry; D007700:Kinetics; D011435:Propyl Gallate / Q000138:chemical synthesis*; D013012:Sorbitol / Q000737:chemistry; D014867:Water
chemical_list: D000975:Antioxidants; D002021:Buffers; D002951:Citrates; D003470:Culture Media; D004800:Enzymes, Immobilized; D047348:Hydrolyzable Tannins; D014867:Water; D013012:Sorbitol; D007692:Diatomaceous Earth; D011435:Propyl Gallate; D002265:Carboxylic Ester Hydrolases; C022711:tannase