酶解改性两种食用菌膳食纤维理化及功能性质比较  

Physicochemical and functional characterization of enzymatic modification of dietary fiber in two edible fungus

作　　者：杨晰茗 徐红艳[1,2] 王超[1] 李胜男[1] 赵欣锐 YANG Xi-ming;XU Hong-yan;WANG Chao;LI Sheng-nan;ZHAO Xin-rui(College of Agricultural,Yanbian University,Yanji,Jilin 133002,China;Food Research Center,Yanbian University,Yanji,Jilin 133002,China)

机构地区：[1]延边大学农学院,吉林延吉133002 [2]延边大学食品研究中心,吉林延吉133002

出　　处：《食品与机械》2020年第10期32-36,42,共6页Food and Machinery

基　　金：吉林省科技发展计划资助项目(编号:20190301068NY)。

摘　　要：以高粱乌米和杏鲍菇两种食用菌为原料,通过酶—重量法制备可溶性膳食纤维(S-SDF、P-SDF)和不溶性膳食纤维(S-IDF、P-IDF),分别测定溶胀力、持水力、持油力等理化性质及葡萄糖吸附力、胆酸钠吸附力、胆固醇吸附力、葡萄糖透析延迟能力等功能性质。结果表明:S-SDF的溶胀力最强,为11.83mL/g;P-IDF的持水力最强,为4.55g/g;P-SDF的持油性最强,为3.01g/g;S-IDF的葡萄糖吸附能力最强,达74.17mg/g,S-SDF与S-IDF葡萄糖吸附能力显著强于P-SDF与P-IDF;模拟肠道环境中的胆固醇吸附能力强于胃环境,P-IDF在两种环境中的胆固醇吸附能力均最强;S-IDF胆酸钠吸附能力最强,可达83.80mg/g;S-SDF葡萄糖透析延迟指数显著高于PSDF,在60min时达38.28%。In this study,two kinds of edible fungus Sporisorium reilianum and Pleurotus eryngii were used as raw materials.Soluble dietary fiber(S-SDF,P-SDF)and insoluble dietary fiber(S-IDF,P-IDF)were prepared by enzyme-gravimetric method.The physicochemical properties including swelling capacity,water holding capacity and oil holding capacity,and the functional properties including glucose adsorption capacity,sodium cholate adsorption capacity,cholesterol adsorption capacity and glucose dialysis retardation index were measured respectively.Results showed that S-SDF had the strongest swelling force(11.83 mL/g).P-IDF had the strongest water holding capacity(4.55 g/g).P-SDF had the strongest oil holding capacity(3.01 g/g).S-IDF had the highest glucose adsorption ability(74.17 mg/g).The glucose adsorption ability of S-SDF and S-IDF were significantly better than those of P-SDF and P-IDF.The cholesterol adsorption capacity in the simulated intestinal environment was stronger than that in the gastric environment,and P-IDF has the strongest cholesterol adsorption capacity in these two kinds of environment.The sodium cholate adsorption capacity of S-IDF was the strongest,up to 83.80 mg/g.The glucose dialysis delay index of S-SDF was significantly higher than that of P-SDF,reaching to 38.28%at 60 min.

关 键 词：高粱乌米 杏鲍菇 膳食纤维 酶法 改性 理化性质 功能性质 

分 类 号：TS219[轻工技术与工程—粮食、油脂及植物蛋白工程]