微波提取花生茎中水溶性膳食纤维的工艺优化  

Optimization of Extraction Processing of Soluble Dietary Fiber from Peanut Stems by Microwave Technology

作　　者：李红霞[1,2] 王世清[1] 于丽娜[2] 杨庆利[2] 刘志强[1] 张月婷[1] 

机构地区：[1]青岛农业大学食品科学与工程学院,山东青岛266109 [2]山东省花生研究所,山东青岛266100

出　　处：《食品科学》2010年第22期221-225,共5页Food Science

基　　金：国家"863"计划项目(2007AA10Z189;2006AA10A114);"十一五"国家科技支撑计划项目(2006BAD07A10);国家现代农业产业技术体系专项(nycytx-19);国家公益性行业(农业)科研专项(nyhyzx07-014)

摘　　要：以花生茎为原料,微波提取花生茎中水溶性膳食纤维。通过对浸泡时间、微波时间、微波功率、微波温度和料液比等影响因素进行单因素及正交试验,获得花生茎水溶性膳食纤维的最佳提取工艺条件:浸泡时间55min、微波时间4min、微波功率800W、微波温度90℃、料液比1:14(g/mL),水溶性膳食纤维提取率达到6.0%,NSP含量为94.68%,SDF综合评分为65.12%。In this study, peanut stems were used as the raw materials to extract soluble dietary fiber （SDF） through microwaveassisted technology. The optimal microwave-assisted extraction processing conditions were explored by single factor and orthogonal experiments through evaluating the effects of soaking time, microwave treatment time, microwave power, microwave treatment temperature and material-liquid ratio on extraction rate of SDF from peanut stems. Results indicated that the optimal microwaveassisted extraction processing conditions were soaking time of 55 min, microwave treatment time of 4 min, microwave power of 800 W, microwave treatment temperature of 90 ℃ and solid-liquid ratio of 1：14. Under the optimal extraction conditions, the extraction rate of SDF was 6.0% and the content of non-starch polysaccharides （NSP） in SDF was 94.68%. The average comprehensive score of SDF was 65.12%. These studies can provide a theoretical reference for the extraction of SDF from peanuts stems.

关 键 词：花生茎 微波 水溶性膳食纤维 提取 

分 类 号：TS255.1[轻工技术与工程—农产品加工及贮藏工程]