Generation of New Lignan Glucosides During Germination of Sesame Seeds

Abstract

We investigated the changes in lignan glycosides during germination of sesame seed. In the early stage of germination, up to 48h. sesamin and sesamolin almost disappeared, sesaminol diglucoside increased, and three new lignan glucosides appeared. These new compounds were present in the germinated sesame for at least 7 days after their appearance. Analysis of the new lignan glucosides by LC-MS and GC-MS and by their NMR, UV, and IR spectra showed that they were composed of new lignans and glucoses. A new lignan triglucoside and two lignan diglucosides were identified. The increase in and appearance of lignan glucosides, the disappearance of sesamin and sesamolin, and an increase in the activity of β-glucosidase took place at almost the same time in the early stage of germination. Their metabolism may be related. © 1995, Japan Society for Bioscience, Biotechnology, and Agrochemistry. All rights reserved.