Antioxidant activities of polyphenols extracted from Perilla frutescens varieties

Meng Linghua, Lozano Yves, Gaydou Emile M., Bin Li. 2009. Antioxidant activities of polyphenols extracted from Perilla frutescens varieties. Molecules, 14 (1) : 133-140.

Quartile : Q3, Sujet : CHEMISTRY, ORGANIC

Résumé : 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-Odiglucuronide, luteolin 7-O-diglucuronide, apigenin 7-O-diglucuronide, luteolin 7-Oglucuronide, 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 ?mol/100 mL) and the TEAC value calculated (23-167 ?mol 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.

Mots-clés Agrovoc : Perilla frutescens, composé phénolique, antioxydant

Mots-clés géographiques Agrovoc : Chine, Japon

Classification Agris : Q04 - Composition des produits alimentaires

Champ stratégique Cirad : Axe 3 (2005-2013) - Alimentation accessible et de qualité

Auteurs et affiliations

• Meng Linghua, CIRAD-AMIS-UMR GPEB (FRA)
• Lozano Yves, CIRAD-PERSYST-UMR GPEB (FRA)
• Gaydou Emile M., Université Paul Cézanne (FRA)
• Bin Li, SCAU (CHN)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/547694/)

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