A Comparative Study of Phenolic Antioxidant Activity and Flavonoid Biosynthesis-Related Gene Expression Between Summer and Winter Strawberry Cultivars
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- 作者：Doori Park ; Yeri Park ; Young Hun Lee ; Ik-Young Choi ; Kyong Cheul Park ; Sang Un Park ; Byung Sup Kim ; Young Rog Yeoung and Nam Il Park
- 刊名：Journal of Food Science
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：82
- 期：2
- 页码：341-349
- 全文大小：765K
- ISSN：1750-3841
文摘
Strawberry (Fragaria ananassa Duch.) possesses good antioxidant properties. Phenolic compounds in strawberries, such as anthocyanins and ellagic acid, mainly act as antioxidants. This study aimed to compare the phenolic content and expression patterns of genes involved in flavonoid biosynthesis between summer and winter strawberry cultivars affected by seasonal variation, degree of ripeness, and genotype. Antioxidant activity and the total content of phenols and flavonoids decreased with fruit ripening. Most notably, summer strawberry cultivars showed higher antioxidant activity than winter cultivars. The expression patterns of flavonoid biosynthetic genes tested were cultivar-dependent and were also affected by ripening. These results help us understand the nutritional and physiological characteristics of selected cultivars and provide a range of information for strawberry consumption.