Influence of Growing Season on Phenolic Compounds and Antioxidant Properties of Grape Berries from Vines Grown in Subtropical Climate

The influence of growing season (winter vs summer) on the synthesis and accumulation of phenolic compounds and antioxidant properties was studied in five grape cultivars for three consecutive years. Four phenolic compound parameters (total phenols, flavonoids, flavan-3-ols, and anthocyanins) and thr...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 2011-02, Vol.59 (4), p.1078-1086
Main Authors: Xu, Changmou, Zhang, Yali, Zhu, Lei, Huang, Yu, Lu, Jiang
Format: Article
Language:English
Subjects:
Antioxidants - analysis
Bioactive Constituents
Biological and medical sciences
Climate
Flavonoids - analysis
Flavonoids - biosynthesis
Food industries
Fruit - chemistry
Fruit - growth & development
Fruit - metabolism
Fruit and vegetable industries
Fundamental and applied biological sciences. Psychology
Phenols - analysis
Plant Extracts - chemistry
Seasons
Seeds - chemistry
Temperature
Vitis - chemistry
Vitis - growth & development
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Summary:The influence of growing season (winter vs summer) on the synthesis and accumulation of phenolic compounds and antioxidant properties was studied in five grape cultivars for three consecutive years. Four phenolic compound parameters (total phenols, flavonoids, flavan-3-ols, and anthocyanins) and three antioxidant property parameters [2,2-diphenyl-1-picrylhydrazyl radical scavenging, 2,2-azinobis(3-ethylbenzothiazolinesulfonic acid) radical scavenging, and ferric reducing antioxidant power] were investigated. Results showed that both phenolic compounds and antioxidant properties in the seed and skin of winter berries were significantly (p < 0.05) higher than those of summer berries for all of the cultivars investigated. The anthocyanin profiles of berry skins appeared to be extremely consistent in different years for the same crop, whereas they varied greatly between the two crops within the same year (winter vs summer). Winter berries contained richer glucosides of delphinidin, cyanidin, peonidin, and malvidin than summer berries. These seasonal variations of phenolic compounds and antioxidant properties on grape berries were largely contributed by climatic factors such as temperature, solar radiation, rainfall, and hydrothermic coefficient between different growing seasons.
ISSN:0021-8561
1520-5118
DOI:10.1021/jf104157z