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.
作者
张林威
贺便
黄亮
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)
出处
《食品研究与开发》
CAS
北大核心
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)。
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
artichoke dietary fiber
superfine comminution
microwave-assisted extraction
compound modification
microstructure
