title: Microbial transformation of silybin by Trichoderma koningii.
abstract: Microbial transformation of silybin A (1) and silybin B (2), the major hepatoprotective flavonolignan diastereomers from the fruits of Silybum marianum, with the culture broth of Trichoderma koningii gave two pairs of glucosylated derivatives. Their structures were identified as silybin A 3-O-beta-D-glucopyranoside (3), silybin A 7-O-beta-D-glucopyranoside (4), silybin B 3-O-beta-D-glucopyranoside (5) and silybin B 7-O-beta-D-glucopyranoside (6) by spectroscopic methods.
authors.affiliation: College of Pharmacy and Research Institute of Drug Development, Chonnam National University, Gwangju 500-757, Republic of Korea.
authors.forename: Hyun Jung
authors.initials: HJ
authors.lastname: Kim
authors.forename: Hae-Suk
authors.initials: HS
authors.lastname: Park
authors.forename: Ik-Soo
authors.initials: IS
authors.lastname: Lee
mesh_terms: D005638:Fruit / Q000737:chemistry; D020944:Silybum marianum / Q000737:chemistry; D008968:Molecular Conformation; D019906:Nuclear Magnetic Resonance, Biomolecular / Q000379:methods; D000077385:Silybin; D012838:Silymarin / Q000737:chemistry / Q000378:metabolism; D013237:Stereoisomerism; D013329:Structure-Activity Relationship; D014242:Trichoderma / Q000378:metabolism*
chemical_list: D012838:Silymarin; D000077385:Silybin