期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
花茶抗氧化性评价的新方法
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1. 江苏经贸职业技术学院工程技术系, 江苏省食品安全工程技术研发中心, 江苏 南京 210007;
2. 南京师范大学 化学与材料科学学院, 江苏 南京 210046 -
DOI：10.11826/j.issn.1000-5854.2014.03.014
A New Evaluation Method for Antioxidant Capacity of Scented Tea
摘要/Abstract
建立了一种评价花茶抗氧化性的方法.花茶中的抗氧化性成份和抗坏血酸（VC）都能还原氯金酸形成金纳米颗粒，采用光谱法对金颗粒的浓度进行定量测定，即可把花茶抗氧化性用参照物VC的浓度来评价.利用该方法对竹叶青、玫瑰、薰衣草等7种花茶的抗氧化性进行了测定，结果与传统的DPPH法一致.
A new method was established to evaluate the antioxidant capacity of the scented tea.Both the antioxidant ingredients of the scented tea and ascorbic acid (VC) can make the HAuCl4 reduction to gold nanoparticles, which are determined by spectroscopic methodology.The antioxidant activity of the scented tea is evaluated by the concentration of VC.The antioxidant capacity of seven kinds of scented teas, such as trimeresurus, rose, lavender, et al., was analyzed by using the method.By means of comparing experimental data from traditional DPPH scavenging activity, the novel method was reliable and accurate.
关键词
参考文献 10
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