Butyric Acid and Caproic Acid Production Using Single and Mixed Bacterial Cultures DOI Creative Commons
Young‐Cheol Chang, M. Venkateswar Reddy

Published: Oct. 26, 2023

In this study, we explored different bacterial strains (Clostridium beijerinckii, C. acetobutylicum, oryzae, and kainantoi) belonging to the Clostridium group produced butyric acid (C4) using acetate as a carbon source. All significant amounts of C4, but beijerinckii 1.54 g/L which is almost equivalent production capacity (1.63 g/L) kluyveri. Further experiments were performed diluted raw cheese whey (CW) by inoculating mixed cultures containing Clostridia, Bacillus, Desulfobacteraceae groups. kluyveri was added culture, it stimulated caproic (C6) production. Mixed culture 13.97 g/L, 10.83 6.81 C6 when incubated with two times, five ten times CW, respectively, within 20-day incubation period. Compared our previous higher faster. These results indicated dilution ratio CW an important factor in facilitating production, fatty acids are than that single i.e., Results have depicted potential employing bio-augmentation strategy for valorization bioresources into valuable products like acid.

Language: Английский

Development of biodegradable bag materials as a sustainable alternative to conventional plastic bags DOI
WooSeok Lee, Tai Gyu Lee

Journal of Industrial and Engineering Chemistry, Journal Year: 2024, Volume and Issue: 138, P. 332 - 337

Published: April 7, 2024

Language: Английский

Citations

2
Characterization of Ralstonia insidiosa C1 isolated from Alpine regions: Capability in polyhydroxyalkanoates degradation and production DOI
Young‐Cheol Chang, M. Venkateswar Reddy,

Hinako Suzuki

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 471, P. 134348 - 134348

Published: April 18, 2024

Language: Английский

Citations

1
Lifetimes and mechanisms of biodegradation of polyhydroxyalkanoate (PHA) in estuarine and marine field environments DOI Creative Commons

Tracey Read,

Céline Chaléat, Bronwyn Laycock

et al.

Marine Pollution Bulletin, Journal Year: 2024, Volume and Issue: 209, P. 117114 - 117114

Published: Oct. 16, 2024

Coastal cities face significant challenges from plastic pollution, with most plastics being resistant to biodegradation. Biodegradable are increasingly used address this issue, particularly for items prone entering, and then accumulating, in waterways, through littering or leakage. Among biodegradable plastics, polyhydroxyalkanoates (PHAs) notable as bioderived, bacterially synthesised aliphatic polyesters that readily varied environments. This study focuses on the lifetimes biodegradation behaviour of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) sheets submerged five different aquatic environments (under both surface benthic conditions) within a single coastal zone over 51 weeks. The was characterised mass thickness loss, changes morphology, thermal mechanical properties, molecular weight. findings revealed PHBV between sites, all sites exhibiting faster rates (0.068 ± 0.019 mg.d

Language: Английский

Citations

1
Modelling the growth of a PHB producer methanotrophic bacterial strain using a Computational Fluid Dynamic approach: Discontinuous methane feeding strategy DOI Creative Commons
Carmen De Crescenzo,

Simona Sabbarese,

Claudia Amabile

et al.

Current Research in Biotechnology, Journal Year: 2023, Volume and Issue: 6, P. 100146 - 100146

Published: Jan. 1, 2023

Replacing fossil plastic with green and biobased alternatives is one of the most significant challenges this century. Polyhydroxyalkanoates, more specifically, poly(3-hydroxybutyrate) (PHB), have been found as a very promising alternative to traditional plastics, but currently, they are about 2% bioplastics produced. In work, growth methanotrophic strain belonging Methylocystis species, natural producer poly(3-hydroxybutyrate), was modelled in bubble column bioreactor fed methane, considering discontinuous feeding strategy. Three-dimensional simulations were performed by using CFD approach. The biomass strategy based on variation methane diameter, range 0.003-0.005 m, aspect ratio, 5-16, simulated. Their effects assessed process efficiency performance terms fed, PHB yields. When diameter varied, best achieved at 0.005 m 34.2 g, yield 0.534 gbiomass/gCH4 0.327 gPHB/gCH4. ratio an 10 34.9 0.523 0.321 Finally, estimation performed. analysis allowed verify absence death or stagnant zones inside reactor.

Language: Английский

Citations

2
Methylosinus trichosporium OB3b drives composition-independent application of biogas in poly(3-hydroxybutyrate) synthesis DOI
Sunho Park, Shinhyeong Choe,

Hyejeong Lee

et al.

Fuel, Journal Year: 2024, Volume and Issue: 378, P. 132730 - 132730

Published: Aug. 23, 2024

Language: Английский

Citations

0
Butyric Acid and Caproic Acid Production Using Single and Mixed Bacterial Cultures DOI Creative Commons
Young‐Cheol Chang, M. Venkateswar Reddy

Published: Oct. 26, 2023

In this study, we explored different bacterial strains (Clostridium beijerinckii, C. acetobutylicum, oryzae, and kainantoi) belonging to the Clostridium group produced butyric acid (C4) using acetate as a carbon source. All significant amounts of C4, but beijerinckii 1.54 g/L which is almost equivalent production capacity (1.63 g/L) kluyveri. Further experiments were performed diluted raw cheese whey (CW) by inoculating mixed cultures containing Clostridia, Bacillus, Desulfobacteraceae groups. kluyveri was added culture, it stimulated caproic (C6) production. Mixed culture 13.97 g/L, 10.83 6.81 C6 when incubated with two times, five ten times CW, respectively, within 20-day incubation period. Compared our previous higher faster. These results indicated dilution ratio CW an important factor in facilitating production, fatty acids are than that single i.e., Results have depicted potential employing bio-augmentation strategy for valorization bioresources into valuable products like acid.

Language: Английский

Citations

1