天然酸化防止物質の分析と構造解析 (生体関連物質の分析<特集>) -- (食品関連分析)

概要

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Recently, much attention has been focused on natural antioxidants from a food safety viewpoints, and we started our new project to isolate a new type of antioxidants from natural resources, in particular, from plant materials. This attempt was mainly with the assumption that endogenous antioxidative components may play an important role for protection from oxidative damage in plants, and may be a good source for natural antioxidants. From these background, the isolation and structure elucidation of antioxidants have been carried out from plant leaf waxes, and two antioxidative β-diketones were found in the leaf wax of E. globulus and three tocopherol dimers and two tocopherol conjugates were isolated from Prunus leaf waxes. Novel lignan type of antioxidants were also isolated from sesame seeds and antioxidative tannins were isolated and identified from herbs and crude drugs. This paper summarizes isolation and analysis of antioxidative components by HPLC and structural elucidation by instrumental analyses such as MS and NMR.
日本油化学会の論文