Antioxidant Activity of Plant Extracts Containing Phenolic Compounds

The antioxidative activity of a total of 92 phenolic extracts from edible and nonedible plant materials (berries, fruits, vegetables, herbs, cereals, tree materials, plant sprouts, and seeds) was examined by autoxidation of methyl linoleate. The content of total phenolics in the extracts was determi...

Full description

Saved in:
Bibliographic Details
Published in:Journal of agricultural and food chemistry 1999-10, Vol.47 (10), p.3954-3962
Main Authors: Kähkönen, Marja P, Hopia, Anu I, Vuorela, Heikki J, Rauha, Jussi-Pekka, Pihlaja, Kalevi, Kujala, Tytti S, Heinonen, Marina
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
antioxidants
Antioxidants - analysis
Biological and medical sciences
Chemical constitution
crops
Economic plant physiology
Food additives
Food industries
Fundamental and applied biological sciences. Psychology
General aspects
General pharmacology
inhibition
linoleic acid
Linoleic Acids - chemistry
Medical sciences
methyl linoleate
oxidation
Oxidation-Reduction
Pharmacognosy. Homeopathy. Health food
Pharmacology. Drug treatments
phenolic compounds
Phenols - analysis
plant extracts
Plant Extracts - chemistry
trees
wild plants
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The antioxidative activity of a total of 92 phenolic extracts from edible and nonedible plant materials (berries, fruits, vegetables, herbs, cereals, tree materials, plant sprouts, and seeds) was examined by autoxidation of methyl linoleate. The content of total phenolics in the extracts was determined spectrometrically according to the Folin−Ciocalteu procedure and calculated as gallic acid equivalents (GAE). Among edible plant materials, remarkable high antioxidant activity and high total phenolic content (GAE > 20 mg/g) were found in berries, especially aronia and crowberry. Apple extracts (two varieties) showed also strong antioxidant activity even though the total phenolic contents were low (GAE < 12.1 mg/g). Among nonedible plant materials, high activities were found in tree materials, especially in willow bark, spruce needles, pine bark and cork, and birch phloem, and in some medicinal plants including heather, bog-rosemary, willow herb, and meadowsweet. In addition, potato peel and beetroot peel extracts showed strong antioxidant effects. To utilize these significant sources of natural antioxidants, further characterization of the phenolic composition is needed. Keywords: Plant extracts; natural antioxidants; total phenolics; antioxidant evaluation
ISSN:0021-8561
1520-5118
DOI:10.1021/jf990146l