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Abstract Title:

Polyphenols extract from lotus seedpod (Gaertn.): Phenolic compositions, antioxidant, and antiproliferative activities.

Abstract Source:

Food Sci Nutr. 2019 Sep ;7(9):3062-3070. Epub 2019 Aug 9. PMID: 31572599

Abstract Author(s):

Yingbin Shen, Yifu Guan, Xun Song, Jialiang He, Zhenxing Xie, Youwei Zhang, Hui Zhang, Dan Tang

Article Affiliation:

Yingbin Shen

Abstract:

Seedpod, the nonedible portion of lotus (Gaertn.), was reported to be rich in polyphenols. The objective of this study was to investigate the major bioactive polyphenols of the lotus seedpods. The total polyphenol content (TPC) from ethanol extract of lotus seedpod (PELS) was found to be 34.23 μg gallic acid equivalents (GAE)/mg extract. Four polyphenolic compounds were identified in the PELS, comprised of one flavan-3-ol (catechin) and three flavonoids (kaemferol, quercetin and hyperoside). In vitro antioxidant and antiproliferative properties of the PELS were evaluated. PELS exhibited 89.38%, 99.82%, 68.25%, and 95.82% scavenging activities against 2,2-diphenyl-1-picrylhydrazyl (DPPH), superoxide, hydroxyl, and 2,2'azinobis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) radicals, respectively, at 1.6 mg/ml. The Fereducing power of PELS was 0.605 at 0.32 mg/ml, which is comparable to glutathione (GSH). The PELS showed 31.79% metal chelating capacity and 87.79% inhibition of linoleic acid auto-oxidation at 1.6 mg/ml. PELS showed cytotoxicity toward HepG2 and LNcap cell lines in vitro with ICvalues at 44.59 and 11.50 μg/ml, respectively. The findings of this study provide evidences that the inedible lotus seedpod could be a source for natural antioxidants and anticancer agents.

Study Type : In Vitro Study

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