TY - JOUR AU - Wojciech Rybiński AU - Magdalena Karamać AU - Michał Janiak AU - Andreas Börner AU - Natalia Płatosz AU - Ryszard Amarowicz PY - 2020/09/30 Y2 - 2024/03/29 TI - Antioxidant capacity of Lathyrus sativus seeds JF - Journal of Food Bioactives JA - JFB VL - 11 IS - 0 SE - Original Research DO - 10.31665/JFB.2020.11242 UR - http://www.isnff-jfb.com/index.php/JFB/article/view/157 AB - Grass pea seeds of 30 varieties from Poland, Slovakia, Czech, Russia, Ukraine, Hungary, Bulgaria, India, Iran, Tunisia, Ethiopia, Canada, and Chile were investigated. Phenolic compounds were extracted from seeds into 80% (v/v) methanol. The total phenolics compounds content of the extracts was determined using Folin-Ciocalteu’s phenol reagent. The antioxidant activity was determined using ABTS and FRAP assays. Total phenolic contents ranged from 2.74 to 10.7 mg/g extract and from 35.9 to 144.7 mg/100 g seeds. The extracts and seeds were characterized using Trolox equivalent antioxidant capacity values of 0.014–0.060 mmol Trolox/g extract and 0.188–0.866 mmol Trolox/100 g seeds, and FRAP values of 0.188–0.866 mmol Fe2+/g extract and 0.541–1.398 Fe2+/100 g seeds. The total phenolics content of grass pea extract was correlated with the results of the ABTS (r = 0.854) and FRAP (r = 0.958) assays. A similar correlation existed between the results of both assays (r = 0.890). Phenolic acids were the dominant phenolic compounds of two cultivars of grass pea. Syringic and sinapic acids had the highest amounts while ferulic, p-hydroxybenzoic, protocatechuic, and p-coumaric acids were present in much lower quantitie. Phenolic acids were present in the form of free compounds, esters, and glycosides. ER -