Phytocomponents and antioxidant activity in the methanol extract of seed lotus (Nelumbo Nucifera Gaernt.) from Viet Nam

Abstract

In this study, we determined the phytocomponents using GC-MS and evaluated antioxidant activity by a 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay of the methanolic extract of six lotus varieties seed in Viet Nam (N. Nucifera). GC-MS chromatogram of the methanolic extract of six lotus varieties seed in Viet Nam showed 27 peaks which indicate the presence of 27 phytochemical constituents. The major phytochemical constituent is methyl-alpha-dgalactopyranoside (66,86-78,69%) in all lotus varieties. Antioxidant activity of liquid extract and condensed extract was found as 8.20-15.67 mg/mL and 0.850-1.286 mg/mL in comparison with IC50 of ascorbic acid (3.2 μg/mL). Moreover, 50 % of the DPPH scavenging ability of liquid and condensed extract differed from each other. From obtained results, the seeds of six lotus varieties in Viet Nam were found to be potential for bioactive compounds and antioxidant activity.

Exploring the chemical composition, medicinal benefits, and antioxidant activity of Plumula nelumbinis essential oil from different habitats in China

“…It is not only an edible and medicinal resource, but also recorded in ancient China that it has the functions of calming the mind, stopping bleeding, and treating irritability and confusion ( Chen et al, 2021 ). P. nelumbinis contains a variety of bioactive components, such as alkaloids( Chen et al, 2021 ), flavonoids( Zheng et al, 2018 ), polysaccharides( Jiang et al, 2018 ) and essential oil( Lin et al, 2009 , Zeng et al, 2010 , Nguyen et al, 2021 ), and has a variety of pharmacological activities, such as anti-inflammatory, anti-oxidation and anti-tumor( Chen et al, 2021 ). However, the current research mainly focuses on alkaloids and flavonoids, and little is known about the Plumula nelumbinis essential oil (PNEO).…”