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5,5‐Dimethyloxazolidine‐2‐thione formation from glucosinolate in Limnanthes alba Benth. seed
Author(s) -
Daxenbichler M. E.,
Vanetten C. H.
Publication year - 1974
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02635152
Subject(s) - glucosinolate , chemistry , food science , botany , biology , brassica
A crystalline compound, identified as 5,5‐dimethyloxazolidine‐2‐thione was isolated from defatted Limnanthes alba var. alba (meadowfoam) seed meal by either of two procedures, described below. The precursor glucosinolate was separated and then hydrolyzed with an added thioglucosidase prepared from mustard seed. Alternatively, endogenous thioglucosidase was allowed to act in an aqueous slurry of the Limnanthes alba meal, and subsequently 5,5‐dimethyloxazolidine‐2‐thione was purifed from the autholysis products. Previous workers reported 5,5‐dimethyloxazolidine‐2‐thione formation in seed meals of only two Cruciferae genera. Among seed samples we analyzed representing the Limnanthaceae species, production of the rare oxazolidinethione derivative was unique to Limnanthes alba .