超微粉碎-微波辅助提取洋蓟可溶性膳食纤维工艺优化  

Optimization of Artichoke Soluble Dietary Fiber with Ultrafine Comminution and Microwave-Assisted Extraction

作　　者：张林威 贺便 黄亮[1] 朱仁威 王雅怡 ZHANG Linwei;HE Bian;HUANG Liang;ZHU Renwei;WANG Yayi(Key Laboratory of Special Medical Food Processing of Hunan Province,National Engineering Research Center for Deep Processing of Rice and byproducts,College of Food Science and Engineering,Central South University of Forestry and Technology,Changsha 410004,Hunan,China)

机构地区：[1]特医食品加工湖南省重点实验室,稻谷及副产物深加工国家工程研究中心,中南林业科技大学食品科学与工程学院,湖南长沙410004

出　　处：《食品研究与开发》2023年第16期134-142,共9页Food Research and Development

基　　金：湖南省自然科学基金项目(2019JJ60020);湖南省科技创新平台与人才计划项目(2017TP1021);长沙市科技计划项目(kc1704007);湖南省教育厅“十二五”重点学科资助项目(2011-76)。

摘　　要：以洋蓟加工副产物为原料,通过超微粉碎-微波复合改性获得可溶性膳食纤维(soluble dietary fiber,SDF),并以SDF得率为评判指标,采用单因素试验对柠檬酸质量分数、液料比、微波功率和微波时间4个因素进行研究,在该基础上开展响应面优化试验。结果表明:提取洋蓟SDF的最佳工艺参数为柠檬酸质量分数1%、液料比25∶1(mL/g)、微波时间30 s和微波功率500 W,该条件下洋蓟SDF得率为19.37%。与普通粉碎进行比较,改性后SDF含量增加199%(P<0.05),微观结构颗粒尺寸减小、疏松多孔、比表面积增加,为后续开发洋蓟的附加价值提供参考。Soluble dietary fiber(SDF)was obtained by processing artichoke by-products using superfine comminution and microwave modification.Four factors,namely citric acid mass fraction,liquid-to-material ratio,microwave power,and microwave time,were investigated by single-factor experiments.The results showed that the optimal process parameters for the extraction of artichoke SDF were:citric acid mass fraction(1%),liquid-to-material ratio(25∶1),microwave time(30 s),and microwave power(500 W).The yield of artichoke SDF under these conditions was 19.37%.Compared with common grinding,SDF content increased by 199%after modification(P<0.05).Additionally,it was observed that the microstructure particle size decreased,loosened,and became porous,and the specific surface area increased thereby providing a reference for the development of superior artichoke SDF.

关 键 词：洋蓟膳食纤维 超微粉碎 微波辅助提取 复合改性 微观结构 

分 类 号：TS209[轻工技术与工程—食品科学]