Production of extracellular fructans by <i>Gluconobacter nephelii</i> P1464

Abstract

Bacterial fructans, known as levans, have extensive options for practical usage, however, actually limited due to high production costs. Therefore, the searches for efficient producer strains should be an urgent task to reduce costs. This study is the first report on the formation of fructans by a novel strain of acetic acid bacteria (AAB) Gluconobacter nephelii P1464. Characteristics obtained at different cultivation conditions confirmed the operation of a competitive and perspective producer strain. Isolated extracellular fructans are characterized by a lower molecular weight as compared with other AAB which could promote their physiological activity, including the prebiotic effects.