Abstract
In order to fully understand the variations of fruit quality-related phytochemical composition in Chinese bayberry (Myrica rubra Sieb. et Zucc.), mature fruit of 17 cultivars from Zhejiang and Jiangsu provinces was used for the investigation of fruit quality attributes, including fruit color, soluble sugars, organic acids, total phenolics, flavonoids, antioxidant capacity, etc. Sucrose was the main soluble sugar, while citric acid was the main organic acid in bayberry fruit. The content of total phenolics and total flavonoids were positively correlated with 2,2-diphenyl-1-picrylhydrazyl (DPPH), ferric reducing antioxidant power (FRAP) antioxidant activity and 2,2ʹ-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging activity. Five anthocyanidins, i.e., delphinidin–hexoside (Dp–Hex), cyanidin-3–O-galactoside (C-3–Gal), cyanidin-3–O-glucoside (C-3–Glu), pelargonidin-3–O-glucoside (Pg-3–Glu) and peonidin-3-O-glucoside (Pn-3–Glu), and seven flavonols compounds, i.e., myricetin-3-O-rhamnoside (M-3–Rha), myricetin deoxyhexoside–gallate (M-DH–G), quercetin-3-O-galactoside (Q-3–Gal), quercetin-3–O-glucoside (Q-3–Glu), quercetin-3–O-rhamnoside (Q-3–Rha), kaempferol-3–O-galactoside (K-3–Gal) and kaempferol-3–O-glucoside (K-3–Glu), were identified and characterized among the cultivars. The significant differences in phytochemical compositions among cultivars reflect the diversity in bayberry germplasm, and cultivars of good flavor and/or rich in various health-promoting phytochemicals are good candidates for future genetic breeding of bayberry fruit of high quality. In conclusion, our results may provide important information for further breeding or industrial utilization of different bayberry resources.
Highlights
IntroductionChinese bayberry (Myrica rubra Sieb. et Zucc., Myricaceae) is a subtropical fruit tree native to
Chinese bayberry (Myrica rubra Sieb. et Zucc., Myricaceae) is a subtropical fruit tree native toChina, and it has been cultivated for more than 2000 years in China
Values within each column followed by different letters were significantly different at p < 0.05 according to Duncan’s new multiple range tests
Summary
Chinese bayberry (Myrica rubra Sieb. et Zucc., Myricaceae) is a subtropical fruit tree native to. Et Zucc., Myricaceae) is a subtropical fruit tree native to China, and it has been cultivated for more than 2000 years in China. Bayberry is a fruit with high medicinal value and has diverse health-promoting properties [5]. 2–4 main cultivars on the market, and no more work has been carried out for the comprehensive investigation of the phytochemical compositions of bayberry germplasm. Bayberry cultivars with a high amount of health-promoting phytochemicals may have great nutritional potential. Such information may provide an important clue for further development and utilization of natural M. rubra resources
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