Determination of sesamin in sesame dregs by high performance liquid chromatography

Abstract

High performance liquid chromatography (HPLC) was used for the analysis of sesamin, the main antioxidant compound of sesame (Sesamum indicum L.), in sesame dregs. Reverse-phase system using a binary isocratic of methanol and deionized water (70:30) and UV detection at 290 nm were performed. The contents of sesamin in the sesame dregs from Korea and China were 1.45 and 1.60 mg . g(-1), respectively. The assay was successfully applied to quantify sesamin in the sesame dregs and to present the recycling possibilities of inefficiently used resources as agricultural by-products.