| 花生秆水溶性膳食纤维的超声波提取及抗氧化活性研究 |
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| 引用本文： | 于丽娜,宫清轩,杨庆利,毕洁,张初署,孙杰.花生秆水溶性膳食纤维的超声波提取及抗氧化活性研究[J].花生学报,2011,40(2):1-6. |
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| 作者姓名： | 于丽娜 宫清轩 杨庆利 毕洁 张初署 孙杰 |
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| 作者单位： | 山东省花生研究所,山东青岛,266100 |
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| 基金项目： | “十一五”国家科技支撑计划项目(2008BAD97B04); 现代农业产业技术体系建设专项资金(nycytx-19); 青岛市公共领域科技支撑计划项目(09-1-1-84-nsh) |
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| 摘 要： | 研究以花生秆为原料,用超声波法提取花生秆水溶性膳食纤维(SDF),并对SDF的抗氧化活性进行了研究.单因素和正交试验结果显示超声波提取SDF的最佳工艺条件为:超声波频率28kHz、反应温度80℃、反应时间120min、超声波功率240W.在此条件下,SDF的得率为5.35%,SDF中非淀粉多糖(NSP)含量为65.49...
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| 关 键 词： | 花生秆 水溶性膳食纤维 提取 抗氧化活性 |
Study on the Extraction of Water Soluble Dietary Fiber and Antioxidant Activity from Peanut Stem by Ultrasonic Wave |
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| YU Li-na,GONG Qing-xuan,YANG Qing-li,BI Jie,ZHANG Chu-shu,SUN Jie.Study on the Extraction of Water Soluble Dietary Fiber and Antioxidant Activity from Peanut Stem by Ultrasonic Wave[J].Journal of Peanut Science,2011,40(2):1-6. |
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| Authors: | YU Li-na GONG Qing-xuan YANG Qing-li BI Jie ZHANG Chu-shu SUN Jie |
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| Institution: | YU Li-na,GONG Qing-xuan,YANG Qing-li,BI Jie,ZHANG Chu-shu,SUN Jie(Shandong Peanut Research Institute,Qingdao 266100,China) |
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| Abstract: | The preparation technology of water soluble dietary fiber（SDF） from peanut stem by ultrasonic wave and the antioxidant activity of SDF were investigated.By single factor and orthogonal experiments,the results showed that the optimal conditions for ultrasonic wave extraction of SDF were the ultrasonic wave frequency of 28kHz,the reaction temperature of 80℃,the reaction time of 120min and the ultrasonic power of 240W.Under the optimum technological conditions,the yield of SDF was 5.35%,the percentage content of the non-starch polysaccharides（NSP） in SDF was 65.49% and the average comprehensive score of SDF was 45.44%,respectively.In the end,the experiments of SDF antioxidant activity were carried out.The results indicated that SDF have remarkable antioxidant activity for scavenging the hydroxyl radicals,super oxide anion radicals and DPPH radicals,iron reducing activity and molybdenum reducing activity.Application of ultrasonic wave extraction SDF is a feasible and novel route for broadening of the application fields of peanut stem and high-value utilizing peanut stem. |
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| Keywords: | peanut stem water soluble dietary fiber extraction antioxidant activity |
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