Phytochemical profiling, polyphenol composition, and antioxidant activity of the leaf extract from the medicinal halophyte Thespesia populnea reveal a potential source of bioactive compounds and nutraceuticals

The present study evaluated the nutritional attributes, polyphenol and amino acid composition, metabolic profiling, in vitro antioxidant assay, and activities of some vital antioxidative enzymes of the leaf extract of the medicinal halophyteThespesia populnea. Phytochemical profiling by the GC ‐QTOF‐MS and HPLC‐DAD analyses identified 37 metabolites, 17 amino acids, and 18 polyphenols. The results of this study establishT. populnea as a potential source of bioactive compounds and as a nonconventional functional food. AbstractThe present study evaluated the phytochemical constituents, nutritional attributes, and the antioxidant capacity of the medicinal halophyteThespesia populnea. The metabolite profiling by GC ‐QTOF‐MS analysis identified 37 metabolites among which sucrose, malic acid, and turanose were the most abundant. A total of 18 polyphenols and 17 amino acids were identified by the HPLC‐DAD analysis. The most abundant polyphenols inT. populnea were gallic acid, catechin, and myricetin. Other polyphenols like protocatechuic acid, epigallocatechin gallate, rosmarinic acid, ellagic acid, rutin, and naringenine were also detected in ample amounts. The leaf extract demonstrated higher antioxidant as well as lipid peroxidation inhibition activities. A correlation analysis revealed a positive correlation between the antioxidant capacity and the phenolic compoundsviz. gallic acid, catechin, myricetin, quercetin, apigenin, cinnamic acid, and coumarin which indicate...
Source: Journal of Food Biochemistry - Category: Food Science Authors: Tags: FULL ARTICLE Source Type: research