Comparison of phytochemical profiles, antioxidant and antiproliferative activities in Chinese bayberry (Myrica rubra Sieb. et Zucc.) fruits
文献类型： 外文期刊
作者： Xia, Wen 1 ; Gong, Ersheng 2 ; Lin, Yanyun 3 ; Li, Tong 4 ; Lian, Fengli 1 ; Zheng, Bisheng 1 ; Liu, Rui Hai 4 ;
作者机构： 1.South China Univ Technol, Overseas Expertise Intro Ctr Discipline Innovat F, Sch Food Sci & Engn, 381 Wushan Rd, Guangzhou 510641, Peoples R China
2.Gannan Med Univ, Sch Publ Hlth & Hlth Management, Ganzhou, Jiangxi, Peoples R China
3.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Key Lab Trop Crop Prod Proc, Minist Agr & Rural Affairs, Zhanjiang, Guangdong, Peoples R China
4.Cornell Univ, Dept Food Sci, Ithaca, NY 14853 USA
关键词： antioxidant activity; antiproliferative activity; apoptosis; bayberry fruits; phytochemicals
期刊名称：JOURNAL OF FOOD SCIENCE （ 影响因子：3.167； 五年影响因子：3.377 ）
ISSN： 0022-1147
年卷期： 2021 年 86 卷 10 期
页码：
收录情况： SCI
摘要： Here, we examined the phytochemical profiles, antioxidant activity (AA), and antiproliferative activity (APA) of four Chinese bayberry (Myrica rubra Sieb. et Zucc.) pulp extracts. They were found to be rich in total phenolics content (TPC; 186.45 +/- 5.42 to 498.94 +/- 8.25 mg of gallic acid equiv./100 g FW) and total flavonoids content (TFC; 126.28 +/- 4.18 to 194.35 +/- 12.03 mg of catechin equiv./100 g FW). For all varieties, the free flavonoid/phenolic/anthocyanin contents were higher than that the bound fractions. Wild pink bayberry (WPB) displayed the highest values of TPC and TFC, and also showed the highest total antioxidant activity (TAA) as revealed by peroxyl radical scavenging capacity (PSC) (451.47 +/- 8.01 mu mol Vit. C equiv./100 g FW), and free cellular antioxidant activity (CAA) (184.99 +/- 6.11 mu mol quercetin equiv./100 g FW, no PBS wash; 117.78 +/- 2.34 mu mol quercetin equiv./100 g FW, PBS wash) assays. Bayberry extracts had a marked reduction in the APA of HepG2 cells, and WPB exhibited the lowest EC50 (8.50 +/- 0.83 mg/ml) value, which was probably associated with cell cycle arrest and apoptosis induction. Practical Application Chinese bayberry (Myrica rubra Sieb. et Zucc.) fruit is rich in natural phenolic compounds, which might be a functional ingredient in food and nutraceutical products. Our findings would provide a logical strategy to promote the comprehensive utilization of phenolics in bayberry fruit with both health and economy benefits.
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