| 超声波辅助提取竹叶黄酮的研究 |
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| 引用本文： | 杨金兰,阎杰,严卓晟,陈森霞.超声波辅助提取竹叶黄酮的研究[J].广东农业科学,2012,39(11):113-115,127. |
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| 作者姓名： | 杨金兰 阎杰 严卓晟 陈森霞 |
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| 作者单位： | 1. 仲恺农业工程学院化学化工学院,广东广州,510225
2. 广州市新栋力超声电子设备有限公司,广东广州,510935 |
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| 摘 要： | 以青竹叶为原料、乙醇为萃取剂,利用超声波辅助提取其中的黄酮类物质。研究了溶剂浓度、料液比、搅拌速度、超声波功率、萃取时间、萃取次数等因素对产物得率的影响。结果表明:常温下,乙醇浓度为75%,料液比为1∶15(g/mL),搅拌速度为80r/min,超声功率为30 W,单次萃取时间为25 min,萃取3次,黄酮提取率最高为2.91%。与常规提取方法相比,超声波法具有省时节能、提取率高等优势。对油脂氧化抑制作用研究表明,竹叶黄酮具有良好的抗氧化性,可以作为天然绿色的抗氧剂进行开发。
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| 关 键 词： | 超声波 提取 黄酮 抗氧化性 竹叶 |
Study on extracting flavonoids from bamboo leaves assisted by ultrasound |
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| YANG Jin-lan
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YAN Jie
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YAN Zhuo-sheng
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CHEN Miao-xia.Study on extracting flavonoids from bamboo leaves assisted by ultrasound[J].Guangdong Agricultural Sciences,2012,39(11):113-115,127. |
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| Authors: | YANG Jin-lan YAN Jie YAN Zhuo-sheng CHEN Miao-xia |
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| Institution: | 1(1.College of Chemistry and Chemical Engineering,Zhongkai University of Agricultural and Engineering,Guangzhou 510225,China; 2.Newpower Ultrasonic Electronic Equipment(Guangzhou) Co.,Ltd,Guangzhou 510935,China) |
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| Abstract: | In this paper,using green bamboo leaves as raw material,ethanol as extraction solvent,ultrasonic-assisted extraction was applied to extract flavonoids.Effects of factors on the percentage of product were investigated,including concentration of solvent,ratio of material to liquid,stirring speed,supersonic power,treatment time.The results showed that the optimum conditions were room temperature,75% ethanol,solid-liquid ratio 1∶15(g/mL),stirring speed 80 r/min,supersonic power 30 W,treatment 25 min/time,3 times,and the extraction yield of flavonoids was 2.91%.Comparing with the conventional method,ultrasonic extraction had a time-saving,high extraction rate and other advantages.Lipid oxidation inhibition studies showed that antioxidative activities of flavoniods were good,could be developed as a natural green antioxidant. |
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| Keywords: | ultrasonic wave extraction flavanoids oxidation resistance bamboo leaves |
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