Comparison of Bioactive Compounds and Antioxidant Activities in Differentially Pigmented Cerasus humilis Fruits

作者：Rui Yang, Yan Yang, Yang Hu, Lu Yin, Pengyan Qu, Pengfei Wang, Xiaopeng Mu, Shuai Zhang, Peng Xie, Chunzhen Cheng, Jiancheng Zhang · 发表于：Molecules · 年份：2023 · DOI：10.3390/molecules28176272 · 被引用次数：22 · 研究领域：Phytochemicals and Antioxidant Activities、Antioxidant Activity and Oxidative Stress、Plant biochemistry and biosynthesis

Chinese dwarf cherry (Cerasus humilis) is a wild fruit tree and medicinal plant endemic to China. Its fruits are rich in various bioactive compounds, such as flavonoids and carotenoids, which contribute greatly to their high antioxidant capacity. In this study, the contents of bioactive substances (chlorophyll, carotenoids, ascorbic acid, anthocyanin, total flavonoids, and total phenols), antioxidant capacities, 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonicacid) (ABTS+) scavenging ability, and ferric-reducing antioxidant power (FRAP)) in differentially pigmented C. humilis fruits of four varieties were determined and compared. The results revealed that anthocyanin, total flavonoids and total phenols were the three main components responsible for the antioxidant activity of C. humilis fruits. ‘Jinou No.1’ fruits with dark red peel and red flesh had the highest contents of anthocyanin, total flavonoids, and total phenols, as well as the highest antioxidant capacities; ‘Nongda No.5’ fruits with yellow-green peel and yellow flesh had the highest contents of carotenoids and chlorophyll, while ‘Nongda No.6’ fruit had the highest ascorbic acid content. To further reveal the molecular mechanism underlying differences in the accumulation of carotenoids and flavonoids among differentially pigmented C. humilis fruits, the expression patterns of structural genes involved in the biosynthesis of the two compounds were investigated. Correlation a...