Levan is a fascinating β-(2, 6)-linked fructose polymer with an unusual combination of
properties characterized in this review. In nature, levan is synthesized from sucrose by a …

Exopolysaccharides (EPSs) produced by microorganisms represent an industrially
untapped market. Some microorganisms can produce and excrete over 40gL− 1 of EPS in …

Levan is a homopolymer of fructose naturally obtained from both plants and
microorganisms. Microbial levans are more advantageous, economical and industrially …

The endophytic Gram-negative bacterium Gluconacetobacter diazotrophicus SRT4 secretes
a constitutively expressed levansucrase (LsdA, EC 2.4. 1.10), which converts sucrose into …

Abstract Levan, a β-2, 6-glycosidic linked fructan, is a promising alternative for the inulin
dominated fructan market. Although levan is already used in some cosmetic products, the …

In nature, fructans are synthesized from sucrose by various microbial and plant species.
Depending on the source, fructans can contain from two to more than a hundred thousand …

Abstract Comparison of the amino acid sequences of four families of glycosyl hydrolases
reveals that they are homologous and have several common conserved regions. Two of …

Leuconostoc mesenteroides B-512 FMC produces dextran and levan using sucrose.
Because of the industrial importance of dextrans and oligosaccharides synthesized by …

Acetic acid bacteria (AAB) are associated with plants and insects. Determinants for the
targeting and occupation of these widely different environments are unknown. However …

The Clostridium acetobutylicum gene Ca-SacB encoding levansucrase was cloned and
expressed in Escherichia coli. Ca-SacB is composed of 1287 bp and encodes 428 amino …