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Exploring two-stage fermentation strategy of polyhydroxyalkanoate production using Aeromonas hydrophila

Paper ID Volume ID Publish Year Pages File Format Full-Text
3327 164 2013 5 PDF Available
Title
Exploring two-stage fermentation strategy of polyhydroxyalkanoate production using Aeromonas hydrophila
Abstract

•Propose optimal mode of fermentation operation for PHA production.•Unveil two-stage operation strategy for treatment and materials recycling.•Disclose optimal nutrient-limiting conditions for PHA accumulation.

With consideration of sustainable development, this study explored the fermentation strategy of cost-effective production of biodegradable polymer- polyhydroxyalanoates (PHAs) for feasibility of eco-friendly materials recycling during wastewater treatment. As prior studies showed that Aeromonas hydrophila NIU01 was a promising PHA-producing bacterium, this follow-up study tended to seek for optimal nutrient-supplementation strategy to stimulate maximal PHA accumulation of A. hydrophila NIU01 for cellular production. As maximal PHA production took place at growth-limiting conditions, two-stage fermentation was much more appropriate for practical applications compared to batch mode of operation. Moreover, this optimal two-stage operation strategy maximized cellular PHA production under nitrogen-limiting conditions at C/N molar ratio of 60/1. For materials recycling, this operation strategy could be applicable to simultaneous PHB production and wastewater decolorization using A. hydrophila.

Keywords
Bioremediation; Biostimulation; Fermentation; Polyhydroxyalkanoates (PHAs); Aeromonas hydrophila; Poly-3-hydroxybutyrate (PHB)
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 78, 15 September 2013, Pages 80–84
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
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us