Efficient conversion of allitol to d-psicose by Bacillus pallidus Y25

Bioproduction ofD-Psicose from Allitol withEnterobacter aerogenesIK7: A New Frontier in Rare Ketose Production

“…It has been reported that Dpsicose can be produced from D-talitol and allitol by the cell reaction of Alcaligenes sp 701B 30) and by Bacillus pallidus Y25. 31) In the former case, the conversion rate was low, and in the latter, it took longer for transformation and by-products accumulated. Using the isolated bacterium, D-psicose can be produced easily in considerable amounts in a short time.…”

“…The bacterium was grown at different temperatures, (20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)(36)(37) C) to optimize growth and activity. The highest biomass yield was obtained when it was incubated at 28 C ( Fig.…”

Polyol Conversion Specificity ofBacillus pallidus

“…4,5) In this study, we observed the production of elusive rare sugars, including L-talose, L-glucose, and L-mannose from L-talitol, L-mannitol, and L-mannitol respectively, and L-talitol and L-mannitol were produced by reverse reaction from L-tagatose and L-fructose respectively (Fig. 2).…”

“…[1][2][3][4][5] In addition, bioconversion strategies for all rare sugars have been schematized. 6) Biotransformation is generally recognized as environmentally friendly compared to other chemical processes, and it is economically competitive in terms of cost and productivity.…”

“…Allitol and xylitol have been found to be the main substrates of B. pallidus, followed by D-iditol, L-arabitol, ribitol, D-arabitol, and galactitol. 4,5) In this report, we describe the structural dependency of sugar substrates in the cellular reaction of this bacterium due to -OH configurations at C2 and C3 positions of polyols, and its potential application in the production of various rare sugars.…”