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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
Sindhu, Raveendran; Ammu, Balakrishnan; Binod, Parameswaran; Deepthi, Sreelatha K; Ramachandran, K. B; Soccol, Carlos Ricardo; Pandey, Ashok.
Afiliação
  • Sindhu, Raveendran; National Institute for Interdisciplinary Science and Technology. Biotechnology Division. IN
  • Ammu, Balakrishnan; National Institute for Interdisciplinary Science and Technology. Biotechnology Division. IN
  • Binod, Parameswaran; National Institute for Interdisciplinary Science and Technology. Biotechnology Division. IN
  • Deepthi, Sreelatha K; National Institute for Interdisciplinary Science and Technology. Biotechnology Division. IN
  • Ramachandran, K. B; Indian Institute of Technology. Department of Biotechnology. IN
  • Soccol, Carlos Ricardo; Universidade Federal do Paraná. Divisão de Engenharia de Bioprocessos e Biotecnologia. Curitiba. BR
  • Pandey, Ashok; National Institute for Interdisciplinary Science and Technology. Biotechnology Division. IN
Braz. arch. biol. technol ; Braz. arch. biol. technol;54(4): 783-794, July-Aug. 2011. ilus, graf, tab
Article em En | LILACS | ID: lil-595633
Biblioteca responsável: BR1.1
ABSTRACT
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 percent 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.
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Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Idioma: En Revista: Braz. arch. biol. technol Assunto da revista: BIOLOGIA Ano de publicação: 2011 Tipo de documento: Article País de afiliação: Brasil / Índia País de publicação: Brasil
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Idioma: En Revista: Braz. arch. biol. technol Assunto da revista: BIOLOGIA Ano de publicação: 2011 Tipo de documento: Article País de afiliação: Brasil / Índia País de publicação: Brasil