摘要
目的:对黄秋葵茶叶营养成分和活性成分进行分析,并对其水提取物进行抗氧化活性测定。方法:采用国标法和农业行业标准方法分析黄秋葵茶叶的营养成分和活性成分,同时测定其水提物对DPPH自由基、羟自由基的清除作用。结果:黄秋葵茶叶(以干基计)中灰分含量为15.32%,粗蛋白含量为27.58%,粗脂肪含量为2.27%,总糖含量为12.06%;氨基酸分析结果表明,黄秋葵茶叶含有多种人体必需氨基酸;元素分析结果表明,黄秋葵茶叶中含有丰富的钾、钙、镁、铁等元素;活性成分黄酮和多糖的含量分别为1.36%和4.70%。黄秋葵茶叶水提物清除DPPH自由基、羟自由基的半数抑制浓度分别为156.8 mg/L和674.5 mg/L。结论:黄秋葵茶叶具有较好的营养价值和抗氧化保健功能,为消费者提供了一种新型的绿色健康饮品。
Objective: To analyze nutritional ingredient and active ingredient of Abelmoschus esculentus tea,and study on antioxidant activity of water extract. Methods: To analyze nutritional ingredient and active ingredient of Abelmoschus esculentus tea with GB method and agriculture standard method. Scavenging effects of water extract on DPPH and OH were determined. Results: The content of ash,crude protein,crude fat and total carbohydrate were 15. 32%,27. 58%,2. 27% and 12. 06% of dried sample,respectively. The amino acid analysis results showed that Abelmoschus esculentus tea contained many kinds of essential amino acid. The trace element analysis results showed that Abelmoschus esculentus tea contained K,Ca,Mg,Fe,et al. The active ingredient flavonoids and polysaccharide were 1. 36% and 4. 70%,respectively. The IC50 of water extract scavenging DPPH and OH were 156. 8 mg / L and 674. 5 mg / L,respectively. Conclusion: Abelmoschus esculentus tea has good nutritional value and antioxidant effect which can provide a new green health drinks for consumers.
出处
《江苏大学学报（医学版）》
CAS
2015年第3期260-262,共3页
Journal of Jiangsu University：Medicine Edition
关键词
黄秋葵茶叶
营养成分
黄酮
多糖
抗氧化
Abelmoschus esculentus tea
nutritional ingredient
flavonoids
polysaccharide
antioxidant activity
