Identification of a sucrose diester of a substituted beta-truxinic acid inoats

Authors
Dimberg, LH Andersson, RE Gohil, S Bryngelsson, S Lundgren, LN
Citation
Lh. Dimberg et al., Identification of a sucrose diester of a substituted beta-truxinic acid inoats, PHYTOCHEM, 56(8), 2001, pp. 843-847
Citations number
22
Categorie Soggetti
Agricultural Chemistry","Animal & Plant Sciences
Journal title
PHYTOCHEMISTRY
ISSN journal
00319422 → ACNP
Volume
56
Issue
8
Year of publication
2001
Pages
843 - 847
Database
ISI
SICI code
0031-9422(200104)56:8<843:IOASDO>2.0.ZU;2-F
Abstract
A novel compound, 4,4'-dihydroxy-3,3'-dimethoxy-beta -truxinic acid esterif ied to sucrose through the fructosyl 3-and 6-carbons (1), was isolated from oat grains (Avena sativa L.). Its structure was determined by a combinatio n of mass spectrometry and 1-D and 2-D NMR. The amounts of 1 in groats of s ix different oat cultivars ranged from 101 to 150 mug g(-1) (dry wt). None was detected in the hulls. The free diacid, 4,4'-dihydroxy-3,3'-dimethoxy-b eta -truxinic acid (2), could not be detected in groats nor in hulls. (C) 2 001 Elsevier Science Ltd. All rights reserved.