Extraction, degree of polymerization determination and prebiotic effect evaluation of inulin from Jerusalem artichoke

Wancong Li; Jun Zhang; Chunwei Yu; Qing Li; Fang Dong; Gang Wang; Guodong Gu; Zhanyong Guo

doi:10.1016/j.carbpol.2014.12.055

Extraction, degree of polymerization determination and prebiotic effect evaluation of inulin from Jerusalem artichoke

Carbohydr Polym. 2015 May 5:121:315-9. doi: 10.1016/j.carbpol.2014.12.055. Epub 2015 Jan 3.

Authors

Wancong Li¹, Jun Zhang², Chunwei Yu², Qing Li³, Fang Dong³, Gang Wang³, Guodong Gu⁴, Zhanyong Guo⁵

Affiliations

¹ 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.
² Laboratory of Environmental Monitoring, School of Tropical and Laboratory Medicine, Hainan Medical College, Haikou 571199, China.
³ Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
⁴ Alliance Pharma, Inc., 17 Lee Boulevard Malvern, PA 19355, USA.
⁵ 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.

PMID: 25659704
DOI: 10.1016/j.carbpol.2014.12.055

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.

Keywords: Degree of polymerization of inulin; GFC; Jerusalem artichoke; Prebiotic effect.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Bifidobacterium / drug effects
Cynara scolymus / chemistry*
Inulin / chemistry*
Inulin / pharmacology
Lactobacillus / drug effects
Polymerization
Prebiotics*

Substances

Prebiotics
Inulin