title: Extraction, degree of polymerization determination and prebiotic effect evaluation of inulin from Jerusalem artichoke.
abstract: The tubers of Jerusalem artichoke are rich of inulin, which makes the plant one of primary inulin resources in China. The aim of this study was to extract inulin from tubers and test the degree of polymerization (DP) 10 days before flowering to 80 days after flowering. The DP of inulin reaches a maximum of 19 at 50 days after flowering. The variation tendencies of inulin content and DP were almost the same, which increase rapidly at the beginning and then decrease gradually at a lower speed. Meanwhile, the effects of inulin on probiotics in yogurt have been evaluated. It indicated that inulin with low DP has higher activities. Experimental data improve the understanding of status change of inulin in whole growth of Jerusalem artichoke tubers in Northeastern China and are instructive to get inulin with different properties.
authors: Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China.
authors: Wancong
authors: W
authors: Li
authors: Laboratory of Environmental Monitoring, School of Tropical and Laboratory Medicine, Hainan Medical College, Haikou 571199, China.
authors: Jun
authors: J
authors: Zhang
authors: Laboratory of Environmental Monitoring, School of Tropical and Laboratory Medicine, Hainan Medical College, Haikou 571199, China.
authors: Chunwei
authors: C
authors: Yu
authors: Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
authors: Qing
authors: Q
authors: Li
authors: Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
authors: Fang
authors: F
authors: Dong
authors: Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
authors: Gang
authors: G
authors: Wang
authors: Alliance Pharma, Inc., 17 Lee Boulevard Malvern, PA 19355, USA.
authors: Guodong
authors: G
authors: Gu
authors: Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China. Electronic address: zhanyongguo@hotmail.com.
authors: Zhanyong
authors: Z
authors: Guo
mesh_terms: D001644:Bifidobacterium / Q000187:drug effects; D031943:Cynara scolymus / Q000737:chemistry*; D007444:Inulin / Q000737:chemistry* / Q000494:pharmacology; D007778:Lactobacillus / Q000187:drug effects; D058105:Polymerization; D056692:Prebiotics
chemical_list: D056692:Prebiotics; D007444:Inulin
keywords: Degree of polymerization of inulin; GFC; Jerusalem artichoke; Prebiotic effect