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| 不同聚合度葡萄皮原花青素的抗氧化活性 | |
| 引用本文： | 赵丹,曾新安,徐中岳. 不同聚合度葡萄皮原花青素的抗氧化活性[J]. 食品与发酵工业, 2012, 38(4): 104-107 |
| 作者姓名： | 赵丹 曾新安 徐中岳 |
| 作者单位： | 1. 华南理工大学轻工与食品学院,广东广州,510640 2. 华南理工大学轻工与食品学院,广东广州510640／广东省天然产物绿色加工与产品安全重点实验室,广东广州510640／广州现代产业技术研究院农产品精深加工技术中心,广东广州511458 3. 华南理工大学轻工与食品学院,广东广州510640／广州现代产业技术研究院农产品精深加工技术中心,广东广州511458 |
| 基金项目： | 广州市科技项目，广东省科技计划项目 |
| 摘 要： | 以葡萄皮原花青素为原料,采用溶剂沉淀法根据聚合度进行分级处理。分光光度法测定了不同聚合度葡萄皮原花青素对DPPH.自由基和亚硝酸钠的清除能力,并与VC、BHT进行了比较。结果表明:葡萄皮原花青素对DPPH.自由基和NaNO2清除率与其浓度成正相关,其最大清除率分别为94.61%,92.56%。随着聚合度的增加,其清除能力下降。 |
| 关 键 词： | 葡萄皮 原花青素 聚合度 抗氧化性 |
Study on the Antioxidant Activities of Different Polymerization Degree Grape Skin Proanthocyanidins |
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| Zhao Dan,Zeng Xin-an,Xu Zhong-yue. Study on the Antioxidant Activities of Different Polymerization Degree Grape Skin Proanthocyanidins[J]. Food and Fermentation Industries, 2012, 38(4): 104-107 | |
| Authors: | Zhao Dan Zeng Xin-an Xu Zhong-yue |
| Affiliation: | 1,3 1(College of Light Industry and Food Sciences,South China University of Technology,Guangzhou 510640,China) 2(Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety,Guangzhou 510640,China) 3(Research Center of Agricultural Products Processing Technologies,Guangzhou Modern Industrial Technologies Institute,Guangzhou 511458,China) |
| Abstract: | Grape skin procyanidins as raw material were separated according to their polymerization degrees by solvent precipitation in this paper.The capability of scavenging sodium nitrite and DPPH· were determined by spectrophotometry,and compared with vitamin C,BHT.The results demonstrated that the scavenging rate of NaNO2 and DPPH· showed the positive correlation with the concentration of the grape skin proanthocyanidins,the capability of scavenging NaNO2 and DPPH· was 94.61% and 92.56%,respectively.It was explored that with the increase of polymerization degree,the capability of scavenging decreases. |
| Keywords: | grape skin proanthoeyanidins polymerization degree antioxidation |
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