| 贾瑞雪，唐朝臣，陈景益，张雄坚，王章英.叶菜专用型甘薯新品种（系）茎尖总酚含量与抗氧化性分析[J].广东农业科学,2022,49(3):135-142 |
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叶菜专用型甘薯新品种（系）茎尖总酚含量与抗氧化性分析 |
| Analysis on Total Phenolic Content and Antioxidant Activity of Stem Tips of New Cultivars (Lines) Leaf-vegetable Sweet Potatoes |
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| DOI：10.16768/j.issn.1004-874X.2022.03.015 |
| 中文关键词: 菜用甘薯 酚类 茎尖 抗氧化 综合抗氧化评价指数 |
| 英文关键词: leaf vegetable sweet potato phenols stem tip antioxidant Antioxidant Potency Composite Index(APCI) |
| 基金项目:国家现代农业产业技术体 系（CARS-10-B03，CARS-10-C15）；广东省现代农业产业技术体系（2021KJ111） |
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| 中文摘要: |
| 【目的】分析叶菜专用型甘薯茎尖总酚含量及抗氧化活性，为筛选优质菜用甘薯品种及其开发利
用提供数据参考。【方法】测定华南地区 1 1 个叶菜型甘薯新品种（系）茎尖的总酚含量，并采用 2,2’- 联氮 -
双 -3- 乙基苯并噻唑啉 -6- 磺酸（ABTS）、1,1- 二苯基 -2- 苦基苯肼（DPPH）自由基清除能力和铁离子还原
能力（FRAP）3 种方法评估抗氧化能力。【结果】不同品种甘薯茎尖总酚含量及 ABTS、DPPH 自由基清除能力
和 FRAP 存在显著差异，各指标平均值分别为 3.64（±0.90）mg/g（GAE）、249.94（±71.47）μmol/g（TE）、
253.06（±58.76）μmol/g（TE）、375.64（±107.20）μmol/g（TE），且不同颜色甘薯茎尖 FRAP 存在显著差异。
甘薯茎尖总酚含量与 ABTS、DPPH、FRAP 均呈极显著正相关关系。【结论】11 个叶菜专用型甘薯新品种（系）
总酚含量及抗氧化能力差异显著，其中 GCS-3、FS-18 和 GCS-17-10 综合抗氧化能力最强。GCS-3 和 FS-18 绿
色茎尖叶菜型甘薯、GCS-17-10 紫绿色茎尖叶菜型甘薯为优质菜用甘薯资源，具有较大的开发利用 潜力。研究
结果可为进一步研究不同颜色茎尖抗氧化能力和叶菜型甘薯新品种的培育提供一定的参考价值。 |
| 英文摘要: |
| 【Objective】The study was carried out to analyze the total phenolic content and antioxidant activity of
leaf-vegetable sweet potato tips in order to provide data for selecting and breeding high-quality leaf-vegetable cultivars of
sweet potato.【Method】The total phenolic contents of leaf tips of 11 leaf-vegetable cultivars (lines) of sweet potato from
South China were determined, and the antioxidant activities were evaluated by ABTS, DPPH and FRAP.【Result】There
were significant differences in the total phenolic content, ABTS, DPPH and FRAP between cultivars, and the averages of these indexes were 3.64(±0.90) mg/g(GAE), 249.94(±71.47) μmol/g(TE), 253.06(±58.76) μmol/g(TE) and 375.64±107.20
μmol/g(TE), respectively. In addition, there was significant difference in the FRAP among differently colored sweet potato
tips. The total phenolic content was positively correlated with antioxidant activity measured by ABTS, DPPH, and FRAP
values.【Conclusion】The total phenolic contents and antioxidant activities of 11 leaf-vegetable sweet potato cultivars were
significantly different, among which GCS-3, FS-18 and GCS-17-10 had the strongest comprehensive antioxidant activities.
GCS-3 and FS-18 with green leaf tip and GCS-17-10 with purple-green leaf tip were high-quality leaf-vegetable sweet potato
resources and had great development and utilization potentials. These results could also provide reference values in further
research on the antioxidation of different colored sweet potato tips and the cultivation of new leaf-vegetable sweet potato cultivars. |
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