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Comparison of Nutrients and Antioxidant Activities in Sweet Potatoes

文献类型： 外文期刊

作者： Li, Xi-You 1 ; Li, Rong-Jiao 1 ; Ma, Xin-Yu 1 ; Li, Yun 4 ; Xi, Zhang 1 ; Li, Wei-Xi 1 ;

作者机构： 1.Yunnan Univ Tradit Chinese Med, Coll Tradit Chinese Med, Kunming, Peoples R China

2.Yunnan Med Hlth Coll, Coll Fundamentals & Pharm, Anning 650300, Peoples R China

3.Anqing Med Coll, Dept Pharm, Anqing, Peoples R China

4.Guizhou Inst Biotechnol, Lab Sweet Potato, Guiyang, Peoples R China

期刊名称：JOURNAL OF FOOD BIOCHEMISTRY （ 影响因子：4.0； 五年影响因子：3.7 ）

ISSN： 0145-8884

年卷期： 2024 年 2024 卷

页码：

收录情况： SCI

摘要： Sweet potato has played an important role in human diets for centuries. Sweet potato is an excellent source of nutrients and natural health-promoting chemicals such as carotenoids, vitamin C, and polyphenols. In this article, we selected forty-eight sweet potato cultivars to evaluate the contents of proximate compositions, phytochemicals, and total antioxidative capacity (TAC). In addition, the sensory taste test was conducted as well. The concentrations of chemical constituents varied significantly among the 48 cultivars. The starch content ranged from 10.58% to 28.08%. The protein concentration was between 2.00% and 12.16%. A noticeable variability was found in vitamin C (8.17-66.09 mg center dot 100 g-1), total polyphenols (0.32-13.82 mu g center dot g-1), and carotenoids (0.22-559.70 mu g center dot g-1). 3,5-dicaffeoylquinic acid was the dominant phenolic acid derivative in all varieties, followed by chlorogenic acid. The content ranges of 3,5-dicaffeoylquinic acid and chlorogenic acid were 0.41-92.18 mu g center dot 100 g-1 and 1.59-63.98 mu g center dot 100 g-1, respectively. Remarkable DPPH (0.19-0.59 mu g center dot g-1) and ABTS+ (0.19-1.42 mu g center dot g-1) antioxidant activities were also observed in these sweet potatoes. TAC was related to vitamin C, carotenoids, total polyphenols, and caffeic acid derivatives. The purple flesh cultivars, especially Mianzishu-9, Jiheishu-1, and Qianshu-18-5-1, rich in protein, starch, and antioxidants, had immense potential to improve malnutrition and hidden hunger. The dark orange flesh cultivars Hongxiangjiao and Ziyunhongxinshu performed best in sensory taste evaluation, but the nutrients and antioxidant effects were ordinary. These cultivars were suitable for enriching the human food systems.

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