4.2.2.16 ascorbic acid + levan transfructosylation. When 35% of ascorbic acid and 2% of levan are incubated with LFTase of 0.5 unit/g levan at 37°C for 85 h, a maximum 52 g/l of ascorbic acid 2-fructoside is produced Paenarthrobacter ureafaciens ascorbic acid 2-fructoside + ? - ? 391319 4.2.2.16 levan - Paenarthrobacter ureafaciens 5 di-D-fructose-2,6':2',6 dianhydride + ? - ? 368348 4.2.2.16 levan - Pseudomonas chlororaphis subsp. aurantiaca 5 di-D-fructose-2,6':2',6 dianhydride + ? - ? 368348 4.2.2.16 levan - Microbacterium sp. 5 di-D-fructose-2,6':2',6 dianhydride + ? - ? 368348 4.2.2.16 levan - Paenarthrobacter nicotinovorans 5 di-D-fructose-2,6':2',6 dianhydride + ? - ? 368348 4.2.2.16 levan - Paenarthrobacter nicotinovorans 5 di-D-fructose-2,6':2',6 dianhydride + ? di-D-fructose-2,6':2',6 dianhydride is the main product, 75%. Fructose, levanbiose, and two unidentified oligosaccharides are minor products ? 368348 4.2.2.16 levan levan from Zymomonas mobilis, conversion yield is 35% Pseudarthrobacter oxydans 5 di-D-fructose-2,6':2',6 dianhydride + ? - ? 368348 4.2.2.16 levan levan from Zymomonas mobilis: conversion yield 28.4% after 24 h. Levan from Serratia: conversion yield: 28.4% after 24 h Microbacterium sp. 5 di-D-fructose-2,6':2',6 dianhydride + ? - ? 368348 4.2.2.16 levan the enzyme degrades Bacillus mesentericus levan up to 40% leaving the levan fragment at the limit of the enzymatic degradation, formation of 5% reducing sugars as D-fructose Paenarthrobacter ureafaciens 5 di-D-fructose-2,6':2',6 dianhydride + ? and two or three minor fructooligosaccharides ? 368348 4.2.2.16 levan the enzyme is specifically induced by levan Paenarthrobacter nicotinovorans 5 di-D-fructose-2,6':2',6 dianhydride + ? - ? 368348