media selection for poly(hydroxybutyrate) production from methanol by methylobacterium extorquens dsmz 1340
نویسندگان
چکیده
plackett-burman design was used for selection of important media components such as carbon and nitrogen sources and minerals which affect poly(hydroxybutyrate) production and cell growth of methylobacterium extorquens dsmz 1340. among the studied variables, nitrogen and phosphorus sources, mgso4 and most of the trace elements were found to be significant variables for phb production from methanol. at best condition (based on phb concentration), dry cell weight, phb content and phb concentration were 3.81 g/l, 21.23 %, and 0.809 g/l, respectively. it was also found that most of the trace elements and phosphorus sources were influential parameters on the growth of microorganism but the kind of nitrogen source was not. the experimental results showed that deficiencies of nitrogen sources (nh4cl and nh4no3), phosphorus sources (k2hpo4 and na2hpo4) and mgso4 in medium, increased phb accumulation.
منابع مشابه
Media Selection for Poly(hydroxybutyrate) Production from Methanol by Methylobacterium Extorquens DSMZ 1340
Plackett-Burman design was used for selection of important media components such as carbon and nitrogen sources and minerals which affect poly(hydroxybutyrate) production and cell growth of Methylobacterium extorquens DSMZ 1340. Among the studied variables, nitrogen and phosphorus sources, MgSO4 and most of the trace elements were found to be significant variables for PHB product...
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poly-β-hydroxybutyrate (phb), produced by several species of bacteria, has attracted great attention as a biodegradable and biocompatible compound with almost similar properties of polypropylene. unfortunately, its use is currently limited due to high production costs. one of the most common methods for overcoming this constraint is the use of inexpensive substrates, like methanol. another stra...
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The nucleotide and deduced amino acid sequence of a novel small (beta) subunit of methanol dehydrogenase of Methylobacterium extorquens AM1 (previously Pseudomonas AM1) has been determined. Work with the whole protein has shown that is has an alpha 2 beta 2 configuration.
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عنوان ژورنال:
iranian journal of chemistry and chemical engineering (ijcce)ناشر: iranian institute of research and development in chemical industries (irdci)-acecr
ISSN 1021-9986
دوره 28
شماره 3 2009
میزبانی شده توسط پلتفرم ابری doprax.com
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