caa a22 4500 605498113 CHVBK 20210128100544.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s00253-014-6238-x doi (NATIONALLICENCE)springer-10.1007/s00253-014-6238-x From fructans to difructose dianhydrides [Elektronische Daten] [Xiao Wang, Shuhuai Yu, Tao Zhang, Bo Jiang, Wanmeng Mu] Fructans are the polymers of fructose molecules, normally having a sucrose unit at what would otherwise be the reducing terminus. Inulin and levan are two basic types of simple fructan, which contain β-(2, 1) and β-(2, 6) fructosyl-fructose linkage, respectively. Fructans not only can serve as soluble dietary fibers for food industry, but also may be biologically converted into high-value products, especially high-fructose syrup and fructo-oligosaccharides. In recent years, much attention has been focused on production of difructose dianhydrides (DFAs) from fructans. DFAs are cyclic disaccharides consisting of two fructose units with formation of two reciprocal glycosidic linkages. They are expected to have promising properties and beneficial effects on human health. DFAs can be produced from fructans by fructan fructotransferases. Inulin fructotransferase (IFTase) (DFA III-forming) and IFTase (DFA I-forming) catalyze the DFA III and DFA I production from inulin, respectively, and levan fructotransferase (LFTase) (DFA IV-forming) catalyzes the production of DFA IV from levan. In this article, the DFA-producing microorganisms are summarized, relevant studies on various DFAs-producing enzymes are reviewed, and especially, the comparisons of the enzymes are presented in detail. Springer-Verlag Berlin Heidelberg, 2014 Fructan nationallicence Difructose dianhydride nationallicence Inulin fructotransferase nationallicence Levan fructotransferase nationallicence Wang Xiao State Key Laboratory of Food Science and Technology, Ministry of Education, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Jiangnan University, 214122, Wuxi, Jiangsu, China aut Yu Shuhuai State Key Laboratory of Food Science and Technology, Ministry of Education, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Jiangnan University, 214122, Wuxi, Jiangsu, China aut Zhang Tao State Key Laboratory of Food Science and Technology, Ministry of Education, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Jiangnan University, 214122, Wuxi, Jiangsu, China aut Jiang Bo Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, 214122, Wuxi, China aut Mu Wanmeng State Key Laboratory of Food Science and Technology, Ministry of Education, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Jiangnan University, 214122, Wuxi, Jiangsu, China aut Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/1(2015-01-01), 175-188 0175-7598 99:1<175 2015 99 253 https://doi.org/10.1007/s00253-014-6238-x text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 review-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00253-014-6238-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Xiao State Key Laboratory of Food Science and Technology, Ministry of Education, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Jiangnan University, 214122, Wuxi, Jiangsu, China aut NATIONALLICENCE 700 1- Yu Shuhuai State Key Laboratory of Food Science and Technology, Ministry of Education, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Jiangnan University, 214122, Wuxi, Jiangsu, China aut NATIONALLICENCE 700 1- Zhang Tao State Key Laboratory of Food Science and Technology, Ministry of Education, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Jiangnan University, 214122, Wuxi, Jiangsu, China aut NATIONALLICENCE 700 1- Jiang Bo Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, 214122, Wuxi, China aut NATIONALLICENCE 700 1- Mu Wanmeng State Key Laboratory of Food Science and Technology, Ministry of Education, Key Laboratory of Carbohydrate Chemistry and Biotechnology, Jiangnan University, 214122, Wuxi, Jiangsu, China aut NATIONALLICENCE 773 0- Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/1(2015-01-01), 175-188 0175-7598 99:1<175 2015 99 253