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.
出处
《食品科学》
EI
CAS
CSCD
北大核心
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)
关键词
花生茎
微波
水溶性膳食纤维
提取
peanut stem
microwave
soluble dietary fiber
extraction
