Mixed Cultures Fermentation for the Production of Poly-ß-hydroxybutyrate

AUTOR(ES)

Shalin, Thomas, Sindhu, Raveendran, Binod, Parameswaran, Soccol, Carlos Ricardo, Pandey, Ashok

FONTE

Braz. arch. biol. technol.

DATA DE PUBLICAÇÃO

26/11/2013

RESUMO

Poly-ß-hydroxybutyrate (PHB) is a biodegradable intracellular microbial product produced by many bacteria and it is comparable to some of the petrochemical derived thermoplastics such as polypropylene. One of the main barriers for the commercial exploitation is the high cost of the substrate for the production of biopolymer. The utilization of mixed microbial cultures facilitates the use of complex substrates thereby reducing the cost of PHB production. In the present study, mixed culture systems were evaluated for PHB production. Bacillus firmus NII 0830 was used for the production of PHB since it accumulates a large amount of PHB and a second organism Lactobacillus delbrueckii NII 0925 was used to provide lactic acid. FTIR and 1H NMR analyses revealed that the PHB extracted from pure culture and mixed culture showed exact match to that of standard PHB. Biodegradation studies of the PHB blends showed 87% degradation. It was also found that a consortium of organisms degraded the films faster than a single organism.

Documentos Relacionados

• Bacterial Flocculation and Production of Poly-β-Hydroxybutyrate
• Influence of the Endogenous Storage Lipid Poly-β-Hydroxybutyrate on the Reducing Power Availability during Cometabolism of Trichloroethylene and Naphthalene by Resting Methanotrophic Mixed Cultures
• High cell density strategy for poly(3-hydroxybutyrate) production by Cupriavidus necator
• Production of staphylococcal enterotoxin in mixed cultures.
• Interferon Production in Mixed Lymphocyte Cell Cultures