PRODUÇÃO DE CELULOSE BACTERIANA UTILIZANDO SUBSTRATOS ALTERNATIVOS NO MEIO DE CULTURA

Abstract

The study aims to develop CB produced from the bacterium Gluconacetobacter
xylinus, in culture media enriched with vinasse and Aloe vera. The infrared spectroscopy analysis
allowed us to conclude that there were chemical alterations in the structures of the CB incorporated
with Aloe vera and in the incorporation with vinasse. In the X-ray diffraction analysis, it was possible
to identify incorporations with the presence of cellulose I and incorporations with the presence of
cellulose II. Mechanically, the incorporation CBB80 of Aloe vera showed similarity in the values of
modulus of elasticity (MPa), maximum stress (MPa) and elongation (%), while the incorporation with
vinasse, CBV40 showed similarity in the values of modulus of elasticity (MPa), maximum stress
(MPa) and elongation (%) when compared to CB membranes. The results showed the potential use
of incorporations of vinasse and Aloe vera as alternative substrates, reducing the high costs involved
in production, valorization of the use of agroindustrial waste and the potential use of plants with
bioactive compounds.