| 荔枝核提取物抗氧化活性及红外光谱特性 |
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| 引用本文： | 江敏, 胡小军, 陈晓林, 李土珍. 荔枝核提取物抗氧化活性及红外光谱特性[J]. 食品工业科技, 2011, (10): 170-172. DOI: 10.13386/j.issn1002-0306.2011.10.011 |
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| 作者姓名： | 江敏 胡小军 陈晓林 李土珍 |
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| 作者单位： | 1.湛江师范学院化学科学与技术学院广东高校新材料工程技术开发中心 |
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| 基金项目： | 湛江市科技攻关项目(2010C3110018) |
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| 摘 要： | 以荔枝核为原料,以95%的乙醇为提取剂,在超声波的作用下得到荔枝核乙醇提取物。利用提取物对DPPH自由基和羟自由基的清除能力评价其抗氧化活性;同时测定了提取物的总还原能力和总的抗氧化性。最后通过红外光谱对提取物进行了定性分析。实验结果表明:荔枝核提取物具有很强的抗氧化活性,其抗氧化能力大于BHT,小于维生素C;荔枝核提取物清除DPPH·和·OH的IC50分别为0.032、0.160mg/mL。每克荔枝核提取物总抗氧化能力相当于210mgVc的总抗氧化能力;从红外光谱的结果可知,荔枝核提取物主要为黄酮类物质。
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| 关 键 词： | 荔枝核 抗氧化 红外光谱 |
Antioxidant activities and infrared spectroscopic properties of extract from litchi seeds |
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| JIANG Min,HU Xiao-jun,CHEN Xiao-lin,LI Tu-zhen. Antioxidant activities and infrared spectroscopic properties of extract from litchi seeds[J]. Science and Technology of Food Industry, 2011, 0(10): 170-172. DOI: 10.13386/j.issn1002-0306.2011.10.011 |
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| Authors: | JIANG Min HU Xiao-jun CHEN Xiao-lin LI Tu-zhen |
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| Affiliation: | JIANG Min,HU Xiao-jun,CHEN Xiao-lin,LI Tu-zhen(Chemistry Science and Technology School,Zhanjiang Normal University,Development Center for New Materials Engineering & Technology in Universities of Guangdong,Zhanjiang 524048,China) |
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| Abstract: | The dried samples of litchi seeds were cut into small pieces and soaked in 95%(v/v) ethanolic aqueous solution under the ultrasonic for some time. The extract was decanted,filtered under vacuum,concentrated in a rotary evaporator,and then lyophilized. The resulting extracts were employed for the current study. DPPH radical and hydroxyl radical scavenging assays were carried out to evaluate the antioxidant potential of the extract. Total reducing power and antioxidant capacity of the extract were determined ... |
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| Keywords: | litchi seeds antioxidant infrared spectroscopic |
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