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Provedor de dados:  52
País:  Brazil
Título:  Production and characterization of poly-3-hydroxybutyrate from crude glycerol by Bacillus sphaericus NII 0838 and improving its thermal properties by blending with other polymers
Autores:  Sindhu,Raveendran
Ammu,Balakrishnan
Binod,Parameswaran
Deepthi,Sreelatha K.
Ramachandran,K. B.
Soccol,Carlos Ricardo
Pandey,Ashok
Data:  2011-08-01
Ano:  2011
Palavras-chave:  Polyhydroxybutyrate
Bacillus sphaericus
Polymer blends
Crude glycerol
Biodiesel industry
Resumo:  The aim of this work was to study the production of poly-3-hydroxybutyrate (PHB) under nitrogen limited conditions by Bacillus sphaericus NII 0838 using crude glycerol from biodiesel industry as sole carbon source. Effect of various process parameters on PHB production such as glycerol concentration, inoculum size and pH of the medium were optimized. Characterization of extracted PHB was carried out by FT-IR, ¹H and 13C NMR. Results showed that the bacterial culture accumulated about 31% PHB in crude glycerol medium. The extracted PHB was blended with other polymers to improve its physical characteristics. The thermal properties of the polymer like melting temperature (Tm) and heat of fusion (ΔHf) were determined using DSC.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000400019
Editor:  Instituto de Tecnologia do Paraná - Tecpar
Relação:  10.1590/S1516-89132011000400019
Formato:  text/html
Fonte:  Brazilian Archives of Biology and Technology v.54 n.4 2011
Direitos:  info:eu-repo/semantics/openAccess
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