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PHBV production by Ralstoniaeutropha in a continuous stirred tank reactor

Paper ID Volume ID Publish Year Pages File Format Full-Text
36462 45133 2005 6 PDF Available
Title
PHBV production by Ralstoniaeutropha in a continuous stirred tank reactor
Abstract

Ralstonia eutropha was cultivated in a continuous-stirred tank reactor to study the dynamic responses of PHBV production under pH-state. The effects of carbon sources (glucose and sodium propionate) and dilution rate on microbial growth and PHBV accumulation were studied. In feeding substrates containing less than 3 g/L of sodium propionate, PHB was the major product with only small amounts of HV accumulated. When the feeding substrates contained 5 g/L of sodium propionate, HV began to accumulate in the product, averaging a HB to HV molar ratio of 70:30. When the feed contained 7 g/L of sodium propionate, the average HB to HV molar ratio was approximately 60:40. Feeding substrate containing 15 g/L of sodium propionate had an average HB to HV molar ratio of 40:60. The continuous culture systems did not reach significant steady states when the concentration of sodium propionate exceeded 7 g/L.

Keywords
PHBV; Continuous stirred tank reactor; Sodium propionate; Dilution rate; Ralstonia eutropha
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 40, Issue 8, July 2005, Pages 2729–2734
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
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Price after discount Only $4.95
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Full-text PDF Download
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