期刊
HORTICULTURAE
卷 8, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/horticulturae8010015
关键词
phenols; flavonoids; anthocyanins; HPTLC analysis; antibacterial; antioxidants
类别
资金
- Consejo Nacional de Ciencia y Tecnologia (CONACYT) [746315]
This study investigated the phenolic composition and biological activity of Vaccinium stenophyllum Steud. fruits. It was found that the fruits exhibited high antioxidant and antimicrobial activity, as well as a rich content of phenols, flavonoids, and anthocyanins. These results suggest the potential value of Vaccinium stenophyllum Steud. for breeding and development as a natural additive.
The genus Vaccinium contains about 400 species distributed worldwide, but only a few species and varieties have had their phenolic composition and biological activity documented. In this study, phenols, flavonoids, anthocyanins, antioxidant and antimicrobial activity of methanolic extracts of Vaccinium stenophyllum Steud. fruits: 1-totally immature, 2-immature, 3-immature/close to maturity and 4-mature, were determined using UV-Visible spectrometry and HPTLC. The totally immature fruit extract showed the highest content of total phenols (19.153 +/- 0.175 mg GAE/g DW), chlorogenic acid (20.867 +/- 0.240 mg CAE/g DW), and the highest antioxidant activity by ABTS(?+) (196.761 +/- 0.641 mu M TE/g DW) and DPPH? (146.580 +/- 6.466 mu M TE/g DW). Immature, immature/close to maturity and mature fruits extracts, exhibited the lowest MIC (9.37 mg/mL) and MBC (18.75 mg/mL) against Escherichia coli, Salmonella choleraesuis, and Shigella flexneri. The mature fruits extract exhibited the highest content of total anthocyanins (0.141 +/- 0.004 mg CE/g DW) and cyanidin-3-glucoside (19.230 +/- 0.309 mg CGE/g DW). The content of phenols, flavonoids and anthocyanins was higher than that reported for other Vaccinium species. These results showed the relevance of Vaccinium stenophyllum Steud. for breeding purposes to enhance the bioactivity of cultivars, or as a source of natural additives for the food industry, among others.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据