中国食品学报2024，Vol.24Issue(2)：53-61,9.DOI:10.16429/j.1009-7848.2024.02.005
碱性过氧化氢处理对藕渣不溶性膳食纤维结构及功能特性的影响
Effect of Alkaline Hydrogen Peroxide Treatment on Structure and Functional Properties of Insoluble Dietary Fiber from Lotus Root Residue
摘要
Abstract
This study investigated the changes of structure and functional properties of insoluble dietary fiber(IDF)from lotus root residue before and after alkaline hydrogen peroxide(AHP)treatment.Results showed that D-glucose content of lotus root residue IDF increased significantly by 9.52％(P＜0.05),while the contents of other monosaccharides decreased significantly(P＜0.05)by AHP treatment.Scanning electron microscopy analysis showed that IDF had fluffy structure and wrinkled surface after AHP treatment.The results of X-ray diffraction indicated the crystal structure of IDF did not change after AHP treatment,but the diffraction intensity increased from 13.09％to 16.13％(P＜0.05).Infrared spec-troscopy indicated the breakage of some chemical bonds of IDF after AHP treatment,and the characteristic adsorption peaks weakened or disappeared.Thermogravimetric analysis showed that after AHP treatment,the peak pyrolysis tempera-ture of IDF decreased,but the mass residue rate increased from 10.43％to 15.94％(P＜0.05).Moreover,the water hold-ing capacity,oil holding capacity,cholesterol adsorption capacity,Cu2+adsorption capacity and cation exchange power of IDF were effectively enhanced(P＜0.05)after AHP treatment,sodium nitrite adsorption capacity of did not change signif-icantly(P＞0.05),while the expansion capacity was greatly reduced(P＜0.05).These results suggested that AHP treatment can change the structure of lotus root residue IDF and improve its functional properties.关键词
碱性过氧化氢/藕渣/不溶性膳食纤维/结构/功能特性Key words
alkaline hydrogen peroxide/lotus root residue/insoluble dietary fiber/structure/functional properties引用本文复制引用
张倩,王佩瑶,王子成,黄琳茜,何玲,徐磊..碱性过氧化氢处理对藕渣不溶性膳食纤维结构及功能特性的影响[J].中国食品学报,2024,24(2):53-61,9.基金项目
国家自然科学基金项目(31801581) （31801581）
江苏省大学生创新创业训练计划资助项目(202211049091Y,202211049427YJ) （202211049091Y,202211049427YJ）
