文献类型： 外文期刊

作者： Tang, Chao-Chen ¹ ; Ameen, Asif ³ ; Fang, Bo-Ping ¹ ; Liao, Ming-Huan ¹ ; Chen, Jing-Yi ¹ ; Huang, Li-Fei ¹ ; Zou, Hon ¹ ;

作者机构： 1.Guangdong Acad Agr Sci, Crops Res Inst, 18 Jinying West Second St, Guangzhou 510640, Peoples R China

2.Guangdong Acad Agr Sci, Key Lab Crop Genet Improvement Guangdong Prov, Guangzhou 510640, Peoples R China

3.South China Agr Univ, Coll Agr, Guangzhou, Peoples R China

4.Gomal Univ, Dept Agron, Fac Agr, Dera Ismail Khan, Pakistan

关键词： Proximate composition; Vitamin C; Plant pigments; Mineral elements; Amino acids; Phenolic compounds; Principal component analysis

期刊名称：JOURNAL OF FOOD COMPOSITION AND ANALYSIS （ 影响因子：4.556； 五年影响因子：4.89 ）

ISSN： 0889-1575

年卷期： 2021 年 96 卷

页码：

收录情况： SCI

摘要： Elucidating the chemical composition and health benefits of specially bred leaf-vegetable sweet potato (Ipomoea batatas L.) can provide a basis for improving their utilization and commercialization and also inform effective breeding strategies. In this study, the nutritional and health-related parameters of different-colored leaf tips (green and purplish-green types) from 11 leafy cultivars of sweet potatoes were determined. The results showed that the tip tissue possessed a wide range of nutritional compounds, and the contents of all of these compounds differed significantly between cultivars (p < 0.001). The crude fibre, crude protein, soluble sugar, and glucose contents ranged between 5.18-10.38, 16.2-30.3, 14.4-22.5, and 2.94-7.91 g/100 g dry weight (dw), respectively. The leaf tips were also good sources of vitamin C (99-511 mg/100 g dw), chlorophyll (892-1797 mg/100 g dw), carotenoids (117-237 mg/100 g dw), free amino acids (479-852 mg/g dw), and minerals (Ca, P, Mg, Fe, Mn, Zn, Cu, and Se), and the K/Na ratio was particularly high, reaching 384. The leaf tips showed considerable caffeoylquinic acid (CQA) derivatives, particularly the pure green-tipped cultivar GCS-3. Given these nutritional components, GCS-3, GCS-6, and GS-17-23 could be considered as healthy leaf-vegetable cultivars with commercial prospects.