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Polyhydroxyalkanoates (Phas) production from volatile fatty acids (vfas) from organic wastes by pseudomonas oleovorans

Aremu, Mujidat Omolara (author)
Högskolan i Borås,Akademin för textil, teknik och ekonomi
Ishola, M. M. (author)
Göteborg Energi AB, Göteborg
Taherzadeh, Mohammad J, 1965- (author)
Högskolan i Borås,Akademin för textil, teknik och ekonomi
 (creator_code:org_t)
2021-11-29
2021
English.
In: Fermentation. - : MDPI. - 2311-5637. ; 7:4
  • Journal article (peer-reviewed)
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 During 72 h of cultivations, samples were withdrawn at intervals and analyzed for cell growth parameters, PHAs accumulation and polymeric properties.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

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ref (subject category)
art (subject category)

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Aremu, Mujidat O ...
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Fermentation
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University of Borås

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