红松松仁膜衣膳食纤维的功能性质  

Study on functional properties of dietary fiber from Pinus Koraiensis nut coated-film

作　　者：王超[1] 徐红艳[1,2,3] 杨晰茗 钟文杰 WANG Chao;XU Hong-yan;YANG Xi-ming;ZHONG Wen-jie(Yanbian University,Yanji,Jilin 133002,China;Food Research Center,Yanbian University,Yanji,Jilin 133002,China;Center of Co-Innovation for Natural Resources of Changbai Mountain&Health Industry,Yanji,Jilin 133002,China)

机构地区：[1]延边大学,吉林延吉133002 [2]延边大学食品研究中心,吉林延吉133002 [3]吉林省长白山生物资源与健康产业协同创新中心,吉林延吉133002

出　　处：《食品与机械》2020年第3期39-42,68,共5页Food and Machinery

基　　金：吉林省教育厅“十三五”科学技术项目重点课题(编号:JJKH20180885KJ)。

摘　　要：以红松松仁膜衣为原料,制备可溶性膳食纤维(Soluble dietary fiber,SDF)和不溶性膳食纤维(Insoluble dietary fiber,IDF),对IDF进行木聚糖酶改性,制备改性可溶性膳食纤维(Modified soluble dietary,MSDF)和改性不溶性膳食纤维(Modified insoluble dietary fiber,MIDF),测定葡萄糖、胆固醇、胆酸钠吸附能力及葡萄糖透析延迟指数。结果表明:MSDF的葡萄糖吸附能力较SDF显著提高,且MIDF的葡萄糖吸附能力较IDF极显著提高;模拟胃环境,改性后的膳食纤维的胆固醇吸附能力均有提高,且MSDF显著高于SDF;MIDF胆酸钠的吸附能力极显著高于IDF,可达60.73mg/g,是IDF的2.98倍;MIDF的葡萄糖透析延迟指数高于IDF,且120 min时趋于稳定,可达21.69%,较IDF显著提高了7.24%。因此,木聚糖酶可提高松仁膜衣膳食纤维的功能性质,且木聚糖酶改性是一种适合松仁膜衣膳食纤维改性的优良方法。Preparation of soluble dietary fiber(SDF)and insoluble dietary fiber(IDF)using Pinus Koraiensis nut coated-film as raw material,and xylanase in insoluble dietary fiber modification,prepared modified soluble fiber(MSDF)and modified insoluble dietary fiber(MIDF),and determined the dialysis delay index of glucose,cholesterol,sodium cholate adsorption capacity and glucose.Results:the glucose adsorption capacity of MSDF was significantly higher than that of SDF,and the glucose adsorption capacity of MIDF was significantly higher than that of IDF.In the simulated gastric environment,the cholesterol adsorption capacity of modified dietary fiber was improved,and MSDF was significantly higher than SDF.The adsorption capacity of MIDF sodium cholate was significantly higher than IDF,up to 60.73 mg/g,which was 2.98 times that of IDF.The glucose dialysis delay index of MIDF was higher than IDF,and it became stable at 120 min,reaching 21.69%,and increased significantly of 7.24%than IDF.Therefore,xylanase can improve the functional properties of pine fiber film dietary fiber,and the xylanase modification is an excellent modification method on dietary fiber of nut coated-film.

关 键 词：红松 松仁膜衣 膳食纤维 功能性质 木聚糖酶 改性 

分 类 号：TS218[轻工技术与工程—粮食、油脂及植物蛋白工程]