Park Doori, Park Yeri, Lee Young Hun, Choi Ik-Young, Park Kyong Cheul, Park Sang Un, Kim Byung Sup, Yeoung Young Rog, Park Nam Il
Dept. of Plant Science, Gangneung-Wonju Natl. Univ., 7 Jukheon-Gil, Gangneung, 25457, Republic of Korea.
Dept. of Molecular Bioscience, Dept. of Agriculture and Life Industry, Kangwon Natl. Univ., 1 Kangwondaehak-gil, Chuncheon-si, Gangwon-do, 24341, Republic of Korea.
J Food Sci. 2017 Feb;82(2):341-349. doi: 10.1111/1750-3841.13600. Epub 2017 Jan 18.
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.
草莓（Fragaria ananassa Duch.）具有良好的抗氧化特性。草莓中的酚类化合物，如花色苷和鞣花酸，主要发挥抗氧化剂的作用。本研究旨在比较受季节变化、成熟度和基因型影响的夏季和冬季草莓品种之间参与类黄酮生物合成的酚类含量和基因表达模式。抗氧化活性以及酚类和黄酮类化合物的总含量随着果实成熟而降低。最值得注意的是，夏季草莓品种比冬季品种表现出更高的抗氧化活性。所测试的类黄酮生物合成基因的表达模式因品种而异，并且也受成熟度影响。这些结果有助于我们了解所选品种的营养和生理特性，并为草莓消费提供一系列信息。
