Coproduction of hydrogen and volatile fatty acids via integrated two-step fermentation of sweet sorghum stalks by alkaline and enzymatic treatment

Islam, Shofiq; Zhang, Zeju; Qu, Song-Ben; Liu, Chun-Lei; Chen, Guo; Liu, Chun-Zhao

doi:10.1016/j.biombioe.2020.105923

Cited by 11 publications

(2 citation statements)

References 44 publications

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“…Chemical pretreatment produced inhibitors with the severity of treatment which inhibit the microbial reaction and would involve other chemicals and costs to neutralise the treated slurry before adding into AD reaction [ 10 , 11 ]. Biological pretreatment is usually slow and associated cost is high [ 12 ]. Physicochemical pretreatment is relatively faster, energy efficient and less chances to produce inhibitors [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of biomethane potential of brown sludge by pre-treatment using vortex based hydrodynamic cavitation

Islam

Ranade

2023

Heliyon

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Section: Introductionmentioning

confidence: 99%

Enhancement of biomethane potential of brown sludge by pre-treatment using vortex based hydrodynamic cavitation

Islam

Ranade

2023

Heliyon

Self Cite

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“…The pretreatment of wastewater biosolids with an enzymatic mixture of cellulases and xylanases led to an 86% increase in the SCOA yield [ 13 ]. The combination of biological and physicochemical pretreatments can also be advantageous, resulting in increases of 97% and 143% in the concentrations of acetic and butyric acids, respectively, after the AF of sweet sorghum stalks pretreated with NaOH and cellulases [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Enzymatic Potential of Filamentous Fungi as a Biological Pretreatment for Acidogenic Fermentation of Coffee Waste

et al. 2022

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Spent coffee grounds (SCGs) are a promising substrate that can be valorized by biotechnological processes, such as for short-chain organic acid (SCOA) production, but their complex structure implies the application of a pretreatment step to increase their biodegradability. Physicochemical pretreatments are widely studied but have multiple drawbacks. An alternative is the application of biological pretreatments that include using fungi Trametes versicolor and Paecilomyces variotii that naturally can degrade complex substrates such as SCGs. This study intended to compare acidic and basic hydrolysis and supercritical CO2 extraction with the application of these fungi. The highest concentration of SCOAs, 2.52 gCOD/L, was achieved after the acidification of SCGs pretreated with acid hydrolysis, but a very similar result, 2.44 gCOD/L, was obtained after submerged fermentation of SCGs by T. versicolor. This pretreatment also resulted in the best acidification degree, 48%, a very promising result compared to the 13% obtained with the control, untreated SCGs, highlighting the potential of biological pretreatments.

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Hydrogen and Fatty Acid Production by Dark Fermentation of Sweet Sorghum Stalks as an Efficient Pre-treatment for Energy Recovery Before Their Bioconversion into Methane

Hamadou,

Djomdi,

Falama

et al. 2024

Bioenerg. Res.

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Coproduction of hydrogen and volatile fatty acids via integrated two-step fermentation of sweet sorghum stalks by alkaline and enzymatic treatment

Cited by 11 publications

References 44 publications

Enhancement of biomethane potential of brown sludge by pre-treatment using vortex based hydrodynamic cavitation

Enhancement of biomethane potential of brown sludge by pre-treatment using vortex based hydrodynamic cavitation

Enzymatic Potential of Filamentous Fungi as a Biological Pretreatment for Acidogenic Fermentation of Coffee Waste

Hydrogen and Fatty Acid Production by Dark Fermentation of Sweet Sorghum Stalks as an Efficient Pre-treatment for Energy Recovery Before Their Bioconversion into Methane

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