Poly(β-hydroxybutyrate) Production using Glycerol as a Carbon Source
Keywords:
Bacillus megaterium, modeling, poly(b-hydroxybutyrate).Abstract
Abstract
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In this work, we carry out a design and a preliminary dimensioning of a poly(b-hydroxybutyrate) (PHB) plant, based on microorganisms and using glycerol as raw material. The process comprises three main sectors: a) raw material purification, where the glycerol stream (coming from a biodiesel production plant) is purified by eliminating methanol; b) fermentation, where the growth of the microorganisms (Bacillus megaterium) takes place and the production of PHB occurs. In this point, a model of the specific growth rate for B. megaterium is implemented within a control vector parameterization approach; c) biopolymer separation, which includes the extraction process, where cellular walls are exposed to lyses and a purified product, is obtained.
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Key words:
Bacillus megaterium; modeling; poly(b-hydroxybutyrate).
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