Antioxidant capacities of ten edible North American plants

• Published in: Phytotherapy research Vol. 16; no. 1; pp. 63 - 65
• Main Authors: Acuña, Ulyana Muñoz, Atha, Daniel E., Ma, Jun, Nee, Michael H., Kennelly, Edward J.
• Format: Journal Article
• Language: English
• Published: Chichester, UK John Wiley & Sons, Ltd 01-02-2002; Wiley
• Subjects: antioxidants; Antioxidants - isolation & purification; Antioxidants - metabolism; Antioxidants - pharmacology; Bepridil - analogs & derivatives; Bepridil - metabolism; Biological and medical sciences; Biphenyl Compounds; catechin; Catechin - isolation & purification; Catechin - metabolism; Chromatography, High Pressure Liquid; Chromatography, Thin Layer; DPPH assay; edible North American plants; epicatechin; Flavonoids; Free Radicals - metabolism; Fruit - chemistry; General pharmacology; Magnoliopsida; Medical sciences; North America; Pharmacognosy. Homeopathy. Health food; Pharmacology. Drug treatments; Phenols - isolation & purification; Phenols - metabolism; Phenols - pharmacology; Picrates; Plant Extracts - isolation & purification; Plant Extracts - metabolism; Plant Extracts - pharmacology; Polymers - isolation & purification; Polymers - metabolism; Polymers - pharmacology; polyphenols; North America; America; Catechin; Fruit; Pharmacognosy; Extract; Antioxidant; In vitro; Biological activity; Free radical; Medicinal plant; Polyphenol; Folk medicine; Plant origin; Rhizome
• ISSN: 0951-418X; 1099-1573
• DOI: 10.1002/ptr.1031

The EtOAc extract obtained from ten edible North American plants, Acorus calamus, Clintonia borealis, Gaultheria shallon, Juniperus osteosperma, Opuntia polyacantha, Prunus americana, Prunus virginiana, Sambucus cerulea, Sorbus americana and Vaccinium parvifolium, were tested in the 1,1‐diphenyl‐2‐picrylhydrazyl (DPPH) free radical assay. High antioxidant activity was obtained from the extracts of three fruits, Gaultheria shallon, Sambucus cerulea and Prunus americana and one extracted rhizome, Acorus calamus. Catechin and epicatechin, potent polyphenolic antioxidants, were identified in the EtOAc extracts of Gaultheria shallon and Sambucus cerulea by reversed‐phase thin‐layer chromatography (TLC) and reversed‐phase high‐performance liquid chromatography (HPLC). Copyright © 2002 John Wiley & Sons, Ltd.