The Production of Acetone-Butanol-Ethanol From Oil Palm Wastes by Clostridium Acetobutyricum and Utilisation of the Wastewater for Polyhydroxybutyrate Production

Sangkharak, Kanokphorn; Yunu, Tewan; Paichid, Nisa; Prasertsan, Poonsuk

doi:10.21894/jopr.2016.2801.07

Cited by 8 publications

(4 citation statements)

References 9 publications

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“…However, there is a study showing that integration of SSF with recovery (SSFR) is possible and can produce higher ABE concentration, yield and productivity [ 50 ]. A study conducted a recovery of ABE from oil palm biomass with biobutanol concentration of 3.5 g/L, which is similar to this study [ 51 ]. Nevertheless, with the integration of new bacterial strains and with highly sophisticated pretreatment, advancement of SSF and downstream process, biobutanol production through SSF process may possibly be introduced at an industrial scale.…”

Section: Resultsmentioning

confidence: 84%

Optimisation of Simultaneous Saccharification and Fermentation (SSF) for Biobutanol Production Using Pretreated Oil Palm Empty Fruit Bunch

et al. 2018

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This study was conducted in order to optimise simultaneous saccharification and fermentation (SSF) for biobutanol production from a pretreated oil palm empty fruit bunch (OPEFB) by Clostridium acetobutylicum ATCC 824. Temperature, initial pH, cellulase loading and substrate concentration were screened using one factor at a time (OFAT) and further statistically optimised by central composite design (CCD) using the response surface methodology (RSM) approach. Approximately 2.47 g/L of biobutanol concentration and 0.10 g/g of biobutanol yield were obtained after being screened through OFAT with 29.55% increment (1.42 fold). The optimised conditions for SSF after CCD were: temperature of 35 °C, initial pH of 5.5, cellulase loading of 15 FPU/g-substrate and substrate concentration of 5% (w/v). This optimisation study resulted in 55.95% increment (2.14 fold) of biobutanol concentration equivalent to 3.97 g/L and biobutanol yield of 0.16 g/g. The model and optimisation design obtained from this study are important for further improvement of biobutanol production, especially in consolidated bioprocessing technology.

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Section: Resultsmentioning

confidence: 84%

Optimisation of Simultaneous Saccharification and Fermentation (SSF) for Biobutanol Production Using Pretreated Oil Palm Empty Fruit Bunch

et al. 2018

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“…The palm oil extraction process involves five steps: 1) reception, transfer, and temporary storage of FFBs, 2) sterilisation, 3) bunch striping,4) digestion, and 5) extraction (Kaewmai, 2012). When FFBs go through the extraction process, they produce approximately 18%-22% of crude palm oil (CPO), which is processed into edible oil, used in energy production, such as biodiesel, and sold to palm oil refineries or biodiesel plants (Sangkharak, 2014). FFBs also produce palm kernels that are processed into palm kernel oil, and dried palm kernels are transported to palm kernel crushers.…”

Section: Introductionmentioning

confidence: 99%

“…FFBs also produce palm kernels that are processed into palm kernel oil, and dried palm kernels are transported to palm kernel crushers. By-products and wastes, accounting for 78%-82% of FFBs, include empty fruit bunches (EFBs), palm fibres (PFs), palm kernel shells (PKSs), decanter cakes, and palm oil mill effluents (POMEs) (Sangkharak, 2014). Kaewmai (2012) mentioned that palm oil production processes generate solid waste, wastewater, and air pollution that require proper management to avoid long-term environmental problems.…”

Section: Introductionmentioning

confidence: 99%

Material Circularity Indicator for Thai Oil Palm Industry

POOLSAWAD

2024

JOPR

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The oil palm industry is vital in food and energy production and significantly contributes to the Thai economy.Nevertheless, the sector faces environmental management challenges, especially waste management. With an awareness of the importance of a circular economy, this study aims to utilise the material circularity indicator (MCI) to measure the material circularity in multiple products of the Thai oil palm industry and plan for sustainable improvement. The circularity measurement result shows that palm oil production is more circular than linear, with a calculated MCI of 0.5372. This shows the importance of recycling, reusing, and composting of co-products, residual oil, and wastes of oil palms to achieve the sustainable development of Thai agriculture. The results also show that the MCI value may be enhanced by increasing the biomass's oil extraction rate (OER) and calorific value. By improving the OER from 18% to 23%, the MCI value rises to 0.6230, explaining a better circularity of the oil palm industry. The oil palm industry, the government, and related authorities may use the study results to plan for the palm oil process improvement to enhance the circularity in the long term. The study has a limitation: The data used in the analysis are from a limited number of palm oil factories. An increasing number of participating factories may enhance the study results.

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“…Clostridia are considered a promising industrially important candidates as they can ferment agro‐industrial wastes of different origins as a substrate for green energy production with the simultaneous generation of valuable polyhydroxyalkanoate (PHA) bioproducts. On exhaustion of organic wastes with excess of carbon sources, clostridia produce extracellular metabolites such as biohydrogen and ABE along with intracellular PHA production stored as inclusion bodies. PHAs are polyesters and water‐insoluble granules produced inside bacterial cells.…”

Section: Introductionmentioning

confidence: 99%

Production of butanol and polyhydroxyalkanoate from industrial waste byClostridium beijerinckiiASU10

et al. 2019

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Summary This study demonstrated a biotechnological approach for simultaneous production of low‐cost H2, liquid biofuels, and polyhydroxyalkanoates (PHAs) by solventogenic bacterium (Clostridium beijerinckii) from renewable industrial wastes such as molasses and crude glycerol. C beijerinckii ASU10 (KF372577) exhibited considerable performance for hydrogen production of 5.1 ± 0.84 and 11 ± 0.44 mL H2 h−1 on glycerol and sugarcane molasses, respectively. The total acetone‐butanol‐ethanol (ABE) generation from glycerol and molasses was 9.334 ± 2.98 and 10.831 ± 4.1 g L−1, respectively. ABE productivity (g L−1 h−1) was 0.0486 and 0.0564 with a yield rate (g g−1) up to 0.508 and 0.493 from glycerol and molasses fermentation, respectively. The PHA yields from glycerol and sugarcane molasses were 84.37% and 37.97% of the dried bacterial biomass, respectively. Additionally, the ultrathin section of C beijerinckii ASU10 showed that PHA granules were accumulated more densely on glycerol than molasses. Gas chromatography–mass spectrometry (GC‐MS) analysis confirmed that the PHAs obtained from molasses fermentation included 3‐hydroxybutyrate (47.3%) and 3‐hydroxyoctanoate (52.7%) as the main constituents. Meanwhile, 3‐hydroxybutyrate represented the sole monomer of PHA produced from glycerol fermentation. This study demonstrated that C beijerinckii ASU10 (KF372577) is a potent strain for low‐cost PHA production depending on its high potential to produce high‐energy biofuel and other valuable compounds from utilization of organic waste materials.

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The Production of Acetone-Butanol-Ethanol From Oil Palm Wastes by Clostridium Acetobutyricum and Utilisation of the Wastewater for Polyhydroxybutyrate Production

Abstract: Oil palm wastes including palm oil mill effluent (POME), empty fruit bunch (EFB),

Cited by 8 publications

References 9 publications

Optimisation of Simultaneous Saccharification and Fermentation (SSF) for Biobutanol Production Using Pretreated Oil Palm Empty Fruit Bunch

Optimisation of Simultaneous Saccharification and Fermentation (SSF) for Biobutanol Production Using Pretreated Oil Palm Empty Fruit Bunch

Material Circularity Indicator for Thai Oil Palm Industry

Production of butanol and polyhydroxyalkanoate from industrial waste byClostridium beijerinckiiASU10

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