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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 BABT
Sindhu,Raveendran; Ammu,Balakrishnan; Binod,Parameswaran; Deepthi,Sreelatha K.; Ramachandran,K. B.; Soccol,Carlos Ricardo; Pandey,Ashok.
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 Palavras-chave: Polyhydroxybutyrate; Bacillus sphaericus; Polymer blends; Crude glycerol; Biodiesel industry.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000400019
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A Comparative Analysis of the Development of the United States and European Union Biodiesel Industries AgEcon
Carriquiry, Miguel A..
Worldwide production of biodiesel is growing at a rapid pace. Arguably, the European Union (EU) is the global leader in biodiesel production, but the United States has recently expanded its production. The growth of the biodiesel industry in both regions has been fueled by a series of government-provided financial incentives. However, the timing of the growth and incentive provisions, the nature of the main incentives, and the market conditions differ across regions. This article provides a comparative analysis of the EU and U.S. biodiesel industries, highlighting market and policy aspects that are leading to a rapid but distinct growth.
Tipo: Working or Discussion Paper Palavras-chave: Biodiesel; Biodiesel industry; Biodiesel quality; Biofuels; Energy security; Rapeseed oil; Rapeseed methyl ester; Soybean oil; Soydiesel; Ultra low sulfur diesel; Resource /Energy Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/9081
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