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Polyhydroxyalkanoat...
Polyhydroxyalkanoates (Phas) production from volatile fatty acids (vfas) from organic wastes by pseudomonas oleovorans
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- Aremu, Mujidat Omolara (author)
- Högskolan i Borås,Akademin för textil, teknik och ekonomi
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- Ishola, M. M. (author)
- Göteborg Energi AB, Göteborg
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- Taherzadeh, Mohammad J, 1965- (author)
- Högskolan i Borås,Akademin för textil, teknik och ekonomi
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(creator_code:org_t)
- 2021-11-29
- 2021
- English.
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In: Fermentation. - : MDPI. - 2311-5637. ; 7:4
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Abstract
Subject headings
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- This study aimed to investigate the production of polyhydroxyalkanoates (PHAs), a biodegradable polymer from organic wastes by Pseudomonas oleovorans. Volatile fatty acids (VFAs) from acidogenic fermentations of chicken manure (VFAs-CM) and potato peels (VFAs-PP), rich in organic matter majorly acetic (49.9%), butyric (15%) and propionic acids (11.1%) were utilized as substrates for microbial processes. During 72 h of cultivations, samples were withdrawn at intervals and analyzed for cell growth parameters, PHAs accumulation and polymeric properties. The highest biopolymer accumulation (0.39 g PHAs/g DCW) was achieved at 48 h of cultivation from medium containing VFAs-PP as the sole source of carbon. On characterization, the produced biopolymers were shown to be semi-crystalline of carbonyl C=O group. Additionally, thermogravimetric analysis (TGA) showed that the produced biopolymers demonstrated the capability to withstand thermal degradation above prescribed temperatures at which cross-linking isomerization reaction occurs, which is a vital property denoting the thermal stability of biopolymer. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik -- Bioprocessteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology -- Bioprocess Technology (hsv//eng)
Keyword
- Acidogenic fermentation
- Polyhydroxyalkanoates
- Pseudomonas oleovorans
- Volatile fatty acids
- Resource Recovery
- Resursåtervinning
Publication and Content Type
- ref (subject category)
- art (subject category)
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