Antioxidant Activities of Polyphenols Extracted from Perilla frutescens Varieties
Open Access
- 31 December 2008
- Vol. 14 (1), 133-140
- https://doi.org/10.3390/molecules14010133
Abstract
Various cultivars of Perilla frutescens (L.) (var. crispa and var. frutescens) Britt. were harvested in China and Japan. They were easily differentiated on the basis of their foliage color, that varied from red to green. Water extracts of dried plants were investigated for their antioxidant activity (AA) and their polyphenolic compounds compared. Among them, cinnamic acid derivatives (coumaroyl tartaric acid, caffeic acid and rosmarinic acid), flavonoids (apigenin 7-O-caffeoylglucoside, scutellarein 7-O-diglucuronide, luteolin 7-O-diglucuronide, apigenin 7-O-diglucuronide, luteolin 7-O-glucuronide, and scutellarein 7-O-glucuronide) and anthocyanins (mainly cis-shisonin, shisonin, malonylshisonin and cyanidin 3-O-(E)-caffeoylglucoside-5-O-malonylglucoside) were quantified. AA assays are based on the inhibition of the free radical 2,2-diphenyl-1-picrylhydrazyl (DPPH). The DPPH radical scavenging activity was calculated as Trolox ® [(±)-6-hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid] equivalent antioxidant capacity (TEAC). The mean amount of total phenolics of the water extracts (4-29 µmol/100 mL) and the TEAC value calculated (23-167 µmol TE/100 mL) confirmed the high antioxidant activity of these leaf water extracts. These results were highly correlated within some o-dihydroxylated polyphenolic compounds and AA.This publication has 16 references indexed in Scilit:
- Anthocyanin and Flavonoid Production from Perilla frutescens: Pilot Plant Scale Processing Including Cross-Flow Microfiltration and Reverse OsmosisJournal of Agricultural and Food Chemistry, 2006
- Review of methods to determine chain-breaking antioxidant activity in foodFood Chemistry, 2005
- Antioxidant Activity of Extracts of Black Sesame Seed (Sesamum indicum L.) by Supercritical Carbon Dioxide ExtractionJournal of Agricultural and Food Chemistry, 2004
- Anti‐allergic effect of Perilla frutescens and its active constituentsPhytotherapy Research, 2003
- Spectrophotometric measurement of antioxidant properties of flavones and flavonols against superoxide anionAnalytica Chimica Acta, 2000
- Effect of Temperature on the Free Radical Scavenging Capacity of Extracts from Red and White Grape Pomace PeelsJournal of Agricultural and Food Chemistry, 1998
- HPLC Method for Evaluation of the Free Radical-scavenging Activity of Foods by Using 1,1-Diphenyl-2-picrylhydrazylBioscience, Biotechnology, and Biochemistry, 1998
- Anti-HIV-1 Activity of Herbs in Labiatae.Biological & Pharmaceutical Bulletin, 1998
- Antioxidant properties of hydroxy-flavonesFree Radical Biology & Medicine, 1996
- Structure of malonylshisonin, a genuine pigment in purple leaves of Perilla ocimoides L. var. crispa Benth.Agricultural and Biological Chemistry, 1989