Effect of ultra-high pressure treatment on structural and functional properties of dietary fiber from pomelo fruitlets  

作　　者：Huan Ouyang Baoli Guo Yang Hu Lijun Li Zedong Jiang Qingbiao Li Hui Ni Zhipeng Li Mingjing Zheng 

机构地区：[1]College of Ocean Food and Biological Engineering,Jimei University,Xiamen,361021,Fujian,China [2]Collaborative Innovation Center of Seafood Deep Processing,Dalian Polytechnic University,Dalian,116034,Liaoning,China [3]Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering,Xiamen,361021,Fujian,China [4]Research Center of Food Biotechnology of Xiamen City,Xiamen,361021,Fujian,China [5]Xiamen Ocean Vocational College,Xiamen,361021,Fujian,China

出　　处：《Food Bioscience》2023年第2期665-672,共8页食品生物科学（英文）

基　　金：This work was supported by the National Natural Science Foundation of China(grant number 22038012);Natural Science Foundation of Fujian,China(grant number 2022N3011);Research Foundation of Jimei University(grant number ZQ2020006,ZR2020004);Xiamen Ocean and Fishery Development Special Fund project(grant number 21CZP005HJ07).

摘　　要：The effects of ultra-high pressure treatment on structural and functional properties of dietary fiber from pomelo fruitlets were analyzed.The results showed that ultra-high treatment changed monosaccharide composition,increased total dietary fiber and soluble dietary fiber from pomelo fruitlets,especially at 400 MPa where soluble dietary fiber was greatly increased from 32.49%±0.23%to 41.92%±0.32%as compared to native one(p<0.05).Besides,ultra-high pressure treatment enhanced water-and oil-holding capacity,as well as swelling capacity of dietary fiber,which were related to its more porous structure and hydrophobic groups.Crystallinity and thermal stability of ultra-high pressure modified dietary fibers increased.Moreover,ultra-high pressure modified dietary fibers possessed stronger bile acid binding and pancreatic lipase inhibition capacities,suggesting its better potential in vitro hypolipidemic activity.Our findings suggested that ultra-high pressure treatment is a promising method to obtain dietary fiber with excellent functional properties,and can provide a basis for the high-value utilization of pomelo fruitlets as functional food with blood-lipid regulation.

关 键 词：Ultra-high pressure Pomelo fruitlets Functional fiber STRUCTURE In vitro hypolipidemic activity 

分 类 号：TS255[轻工技术与工程—农产品加工及贮藏工程]