Jump to main content
Jump to site search


Metabolic and transcriptional regulation of phenolic conversion and tocopherol biosynthesis during germination of sesame (Sesamum indicum L.) seeds

Author affiliations

Abstract

This study aims to evaluate the changes in phenolic acids, lignans and tocopherols of sesame seeds during 0–6 days of germination by monitoring the activities of phenolic metabolism-related enzymes and the expression of key genes in the tocopherol synthesis pathway. Sesamol, which is the most active lignan antioxidant, greatly increased, and most of the phenolic acid contents increased to varying degrees after germination. Correspondingly, the related enzymes, including phenylalanine ammonia-lyase (PAL), cinnamate-4-hydroxylase (C4H), and 4-coumarate:coenzyme A ligase (4CL), were activated. Germination also promoted the conversion of γ-tocopherol to α-tocopherol with the expression of related genes changed. Additionally, there was a high correlation between the tocopherol content and the relative expression levels of key genes. The germination process also increased the bio-accessibility of lignans and tocopherols. Therefore, germination can be utilized to improve the nutritional value of sesame-related products.

Graphical abstract: Metabolic and transcriptional regulation of phenolic conversion and tocopherol biosynthesis during germination of sesame (Sesamum indicum L.) seeds

Back to tab navigation

Supplementary files

Article information


Submitted
30 Jun 2020
Accepted
25 Sep 2020
First published
02 Oct 2020

Food Funct., 2020, Advance Article
Article type
Paper

Metabolic and transcriptional regulation of phenolic conversion and tocopherol biosynthesis during germination of sesame (Sesamum indicum L.) seeds

X. Li, S. Dong, W. Bai, J. Jia, R. Gu, C. Zhao, X. Liu and Y. Wang, Food Funct., 2020, Advance Article , DOI: 10.1039/D0FO01706J

Social activity

Search articles by author

Spotlight

Advertisements