Optimization of Dilute Acid Pretreatment and Enzymatic Hydrolysis of Phalaris aquatica L. Lignocellulosic Biomass in Batch and Fed-Batch Processes

Karapatsia, Anna; Pappás, Ioánnis A.; Penloglou, Giannis; Kotrotsiou, Olympia; Kiparissides, Costas

doi:10.1007/s12155-016-9793-4

Cited by 32 publications

(8 citation statements)

References 45 publications

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“…Another approach of acid pretreatment is the dilute acid method. By applying acid concentrations between 1 and 2%, Karapatsia et al achieved hemicellulose conversion rates of up to 81% from the perennial grass Phalaris aquatica (Karapatsia et al 2017).…”

Section: Chemical Pretreatment Methodsmentioning

confidence: 99%

Material utilization of green waste: a review on potential valorization methods

Langsdorf

Volkmar

Holtmann

et al. 2021

Bioresour. Bioprocess.

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Considering global developments like climate change and the depletion of fossil resources, the use of new and sustainable feedstocks such as lignocellulosic biomass becomes inevitable. Green waste comprises heterogeneous lignocellulosic biomass with low lignin content, which does not stem from agricultural processes or purposeful cultivation and therefore mainly arises in urban areas. So far, the majority of green waste is being composted or serves as feedstock for energy production. Here, the hitherto untapped potential of green waste for material utilization instead of conventional recycling is reviewed. Green waste is a promising starting material for the direct extraction of valuable compounds, the chemical and fermentative conversion into basic chemicals as well as the manufacturing of functional materials like electrodes for electro-biotechnological applications through carbonization. This review serves as a solid foundation for further work on the valorization of green waste.

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Section: Chemical Pretreatment Methodsmentioning

confidence: 99%

Material utilization of green waste: a review on potential valorization methods

Langsdorf

Volkmar

Holtmann

et al. 2021

Bioresour. Bioprocess.

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“…Regardless of the targeted application, size reduction is an unavoidable step involved in the processing of lignocellulosic biomass because the size of lignocellulosic biomass at harvest is typically several orders of magnitude higher than the optimum size requirement for bioprocessing plants. , The following are examples of particle sizes that have been utilized for some lignocellulosic biomass pretreatment and conversion processes, underscoring the necessity of size reduction operation: (a) pelletizing, 0.6–0.87 mm; − (b) gasification, 0.2–1.5 mm; − (c) pyrolysis, 0.25–2 mm; − (d) hydrolysis and fermentation, 0.03–10 mm; − (e) ionic liquid pretreatment, 0.43 mm; and (f) briquetting, 1.6–5.6 mm. , …”

Section: Introductionmentioning

confidence: 99%

Understanding the Impact of Lignocellulosic Biomass Variability on the Size Reduction Process: A Review

Oyedeji

Gitman

et al. 2020

ACS Sustainable Chem. Eng.

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The importance of size reduction to the commercial deployment of biomass utilization technologies cannot be overemphasized. Size reduction is necessary to create good flowing, easily digestible lignocellulosic biomass. However, inefficiencies and inconsistencies have not been well addressed for the process of size reduction. This has motivated quite a few research studies, some of which have reported the influence of process variables and pretreatment on the size reduction performance as well as the development of novel size reduction equipment and empirical mathematical models. In this Perspective, we present a systematic and critical evaluation of the state of lignocellulosic biomass size reduction research to provide insights for engineers and scientists for future development and investigation. We first briefly discuss the structural biology and failure mode of lignocellulosic biomass. Then, we present a comprehensive, data-driven picture of the interactions among lignocellulosic biomass attributes, size reduction process variables, pretreatment processes, and size reduction process performance (as defined by product characteristics and size reduction energy consumption). The sizing equipment tool wear issues are also summarized. Finally, we highlight some existing gaps and future research opportunities for lignocellulosic biomass size reduction to inform the development of newer technologies that could effectively produce high-value lignocellulosic biomass particles.

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“…Luo et al [35] found that butanol yield is only 0.08 g/g in the ABE fermentation from un-detoxified corncob hydrolysate. Although the dilute acid pretreatment commonly results in low concentrations of inhibitory compounds [36], we also have to consider the by-products produced in SPR from the last round of ethanol fermentation, which may inhibit the next round of ABE fermentation. Therefore, detoxification of hydrolysate is necessary.…”

Section: Model Verificationmentioning

confidence: 99%

Waste-to-energy: biobutanol production from cellulosic residue of sweet potato by Clostridia acetobutylicum

Jin¹,

Zhang²,

Yi³

et al. 2021

Environmental Engineering Research

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Biobutanol has been emerging as a renewable replacement to overcome fossil fuel limit due to its attractive qualities. The waste resources utilization is an economically feasible and eco-friendly way to produce biobutanol. In this work, the potential of butanol fermentation with sweet potato residue (SPR) obtained from ethanol fermentation was evaluated. To assist sugar release for butanol production by Clostridia acetobutylicum, a pretreatment approach with dilute sulfuric acid was established via response surface methodology. The maximum butanol concentration of 3.77 g/L was obtained at the optimal conditions of pretreatment at 1% (v/v) dilute sulfuric acid, and 115℃ for 30 min. Detoxifying the hydrolysate with XAD-4 resin significantly enhanced butanol fermentation performance, while adding nutritional supplements had no significant influence. The stability of the fermentation process was verified by the 2 L-scale of fermentation, resulting in 7.96 g/L of butanol, 13.42 g/L h of Acetone-Butanol-Ethanol (ABE), and 0.34 g/g of ABE yield, respectively. This study demonstrates a bio-refinery strategy of conversion from waste biomass to energy, confirms the feasibility of utilizing the cost saving SPR as feedstock to produce butanol through fermentation, and provides a novel approach for minimization of environmental pollution.

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Optimization of Dilute Acid Pretreatment and Enzymatic Hydrolysis of Phalaris aquatica L. Lignocellulosic Biomass in Batch and Fed-Batch Processes

Cited by 32 publications

References 45 publications

Material utilization of green waste: a review on potential valorization methods

Material utilization of green waste: a review on potential valorization methods

Understanding the Impact of Lignocellulosic Biomass Variability on the Size Reduction Process: A Review

Waste-to-energy: biobutanol production from cellulosic residue of sweet potato by Clostridia acetobutylicum

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