关键词: 苹果, 果实, 类黄酮, 组成, 含量, 检测

Abstract:

Flavonoids are the main group of polyphenols in apple fruit, which have a variety of physiological activities positive to human health. Thirty-four flavonoids in apple fruit have been reported, which belong to 5 classes, flavanols, flavonols, dihydrochalcones, anthocyanins and flavanonols. The composition and concentration of flavonoids in apple fruit varied across both apple varieties and the parts of app le fruit. Usually, both the sorts and the concentration of flanonoids in app le peel are obviously more than those of flanonoids in apple flesh. The concentration of flanonoids in app le fruitmay change during its development, maturation and storage. In generally, flavonoids in apple fruit were determined by HPLC with diode array detector or UV detector, and could be characterized by HPLC-MS.

Key words: apple, fruit, flavonoids, composition, concentration, determination