PMID- 29111061 OWN - NLM STAT- MEDLINE DCOM- 20181002 LR - 20181004 IS - 1879-1344 (Electronic) IS - 0144-8617 (Linking) VI - 179 DP - 2018 Jan 1 TI - Synthesis of fructooligosaccharides (FosA) and inulin (InuO) by GH68 fructosyltransferases from Bacillus agaradhaerens strain WDG185. PG - 350-359 LID - S0144-8617(17)31102-5 [pii] LID - 10.1016/j.carbpol.2017.09.069 [doi] AB - Fructooligosaccharides (FOS) and inulin, composed of beta-2-1 linked fructose units, have a broad range of industrial applications. They are known to have various beneficial health effects and therefore have broad application potential in nutrition. For (modified) inulin also for non-food purposes more applications are arising. Examples are carboxymethylated inulin as anti-scalant and carboymlated inulin as emulsifiers. Various plants synthesize FOS and/or inulin type of fructans. However, isolating of FOS and inulin from plants is challenging due to for instance varying chains length. There is an increasing demand for FOS and inulin oligosaccharides and alternative procedures for their synthesis are attractive. We identified and characterized two fructosyltransferases from Bacillus agaradhaerens WDG185. FosA, a beta-fructofuranosidase, synthesises short chain fructooligosaccharides (GF2-GF4) at high sucrose concentration, whereas InuO, an inulosucrase, synthesises a broad range of inulooligosaccharides (GF2-GF24) from sucrose, very similar to plant derived inulin. FosA and InuO showed activity over a broad pH range from 6 to 10 and optimal temperature at 60 degrees C. Calcium ions and EDTA were found to have no effect on the activity of both enzymes. Kinetic analysis showed that only at relatively low substrate concentrations both enzymes showed Michaelis-Menten type of kinetics for total and transglycosylation activity. Both enzymes showed increased transglycosylation upon increasing substrate concentrations. These are the first examples of the molecular and biochemical characterization of a beta-fructofuranosidase (FosA) and an inulosucrase enzyme (InuO) and its product from a Bacillus agaradhaerens strain. CI - Copyright (c) 2017 Elsevier Ltd. All rights reserved. FAU - Kralj, Slavko AU - Kralj S AD - DuPont Industrial Biosciences, Research and Development - Genencor International B.V. Archimedesweg 30, P.O. Box 218, 2333 CN, Leiden, The Netherlands. Electronic address: slavko.kralj@dupont.com. FAU - Leeflang, Chris AU - Leeflang C AD - DuPont Industrial Biosciences, Research and Development - Genencor International B.V. Archimedesweg 30, P.O. Box 218, 2333 CN, Leiden, The Netherlands. FAU - Sierra, Estefania Ibanez AU - Sierra EI AD - DuPont Industrial Biosciences, Research and Development - Genencor International B.V. Archimedesweg 30, P.O. Box 218, 2333 CN, Leiden, The Netherlands. FAU - Kempinski, Blazej AU - Kempinski B AD - DuPont Industrial Biosciences, Research and Development - Genencor International B.V. Archimedesweg 30, P.O. Box 218, 2333 CN, Leiden, The Netherlands. FAU - Alkan, Veli AU - Alkan V AD - DuPont Industrial Biosciences, Research and Development - Genencor International B.V. Archimedesweg 30, P.O. Box 218, 2333 CN, Leiden, The Netherlands. FAU - Kolkman, Marc AU - Kolkman M AD - DuPont Industrial Biosciences, Research and Development - Genencor International B.V. Archimedesweg 30, P.O. Box 218, 2333 CN, Leiden, The Netherlands. LA - eng PT - Journal Article DEP - 20170923 PL - England TA - Carbohydr Polym JT - Carbohydrate polymers JID - 8307156 RN - 0 (Oligosaccharides) RN - 0 (fructooligosaccharide) RN - 30237-26-4 (Fructose) RN - 57-50-1 (Sucrose) RN - 9005-80-5 (Inulin) RN - 9G34HU7RV0 (Edetic Acid) RN - EC 2.4.1.- (Hexosyltransferases) RN - EC 2.4.1.9 (inulosucrase) RN - EC 3.2.1.26 (beta-Fructofuranosidase) RN - IY9XDZ35W2 (Glucose) RN - SY7Q814VUP (Calcium) SB - IM MH - Bacillus/*enzymology/genetics MH - Calcium/chemistry MH - Edetic Acid/chemistry MH - Fructose/metabolism MH - Glucose/metabolism MH - Glycosylation MH - Hexosyltransferases/*chemistry/genetics/*isolation & purification/metabolism MH - Hydrogen-Ion Concentration MH - Inulin/*biosynthesis MH - Kinetics MH - Oligosaccharides/metabolism MH - Sequence Analysis, Protein MH - Sucrose/metabolism MH - Temperature MH - beta-Fructofuranosidase/*biosynthesis OTO - NOTNLM OT - Bacillus OT - Fructooligosaccharides OT - GH68 OT - Inulin OT - Inulosucrase OT - beta-fructofuranosidase EDAT- 2017/11/08 06:00 MHDA- 2018/10/03 06:00 CRDT- 2017/11/08 06:00 PHST- 2017/07/14 00:00 [received] PHST- 2017/09/21 00:00 [revised] PHST- 2017/09/22 00:00 [accepted] PHST- 2017/11/08 06:00 [entrez] PHST- 2017/11/08 06:00 [pubmed] PHST- 2018/10/03 06:00 [medline] AID - S0144-8617(17)31102-5 [pii] AID - 10.1016/j.carbpol.2017.09.069 [doi] PST - ppublish SO - Carbohydr Polym. 2018 Jan 1;179:350-359. doi: 10.1016/j.carbpol.2017.09.069. Epub 2017 Sep 23.