Lignocellulosic waste valorisation strategy through enzyme and biogas production

Wyman, Valentina; Henríquez, Josefa; Palma, C.; Carvajal, Andrea

doi:10.1016/j.biortech.2017.09.055

Cited by 71 publications

(35 citation statements)

References 40 publications

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“…Biological pretreatment offers an alternative choice to replace chemical pretreatment; however, its very slow reaction rate is unattractive from commercial point of view [148]. Different microorganisms are used for lignocellulose pretreatment, such as; white, brown, and soft rot fungi.…”

Section: Biological Pretreatmentsmentioning

confidence: 99%

“…The byproducts formed after biological pretreatments normally do not inhibit subsequent hydrolysis, since the pretreatment is carried out at moderate reaction conditions, and also has other environmental benefits like low inputs (energy, chemicals) and outputs (inhibitors and wastes) [156]. However, as mentioned earlier, its process time is long compared to the others [148,157]. As a result, several studies select different microbial populations for hydrolysis of their specific substrates [158].…”

Section: Biological Pretreatmentsmentioning

confidence: 99%

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Insight into Pretreatment Methods of Lignocellulosic Biomass to Increase Biogas Yield: Current State, Challenges, and Opportunities

et al. 2019

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Lignocellulosic biomass is recalcitrant due to its heterogeneous structure, which is one of the major limitations for its use as a feedstock for methane production. Although different pretreatment methods are being used, intermediaries formed are known to show adverse effect on microorganisms involved in methane formation. This review, apart from highlighting the efficiency and limitations of the different pretreatment methods from engineering, chemical, and biochemical point of views, will discuss the strategies to increase the carbon recovery in the form of methane by way of amending pretreatments to lower inhibitory effects on microbial groups and by optimizing process conditions.

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Section: Biological Pretreatmentsmentioning

confidence: 99%

Section: Biological Pretreatmentsmentioning

confidence: 99%

Insight into Pretreatment Methods of Lignocellulosic Biomass to Increase Biogas Yield: Current State, Challenges, and Opportunities

et al. 2019

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“…Biogas production with alkaline pretreatment: Anaerobic digestion was performed using pretreated biomass with NaOH under suitable particle size and I:S substrate ratio based on biogas production yield. This pretreatment is applied to facilitate the hydrolysis stage during the anaerobic digestion process [13]. Figures 7 and 8 show biogas production and its yield from both pretreated biomass and without alkaline pretreatment (control).…”

Section: Resultsmentioning

confidence: 99%

“…The use of this lignocellulosic biomass increases the economic value of residues and reduces the environmental impacts of its disposal [9]. Corn stover is a by-product generated by corn grain cultivation that has been widely studied for bioenergy production, and includes the husks, cobs, leaves, and stalks [13]. When transforming organic residues into methane anaerobic digestion plays a major role in converting the substrate [6].…”

Section: Introductionmentioning

confidence: 99%

Effect of alkaline pretreatment on biogas production from corn (Zea mays) crop residues biomass

Angulo-Padilla¹,

Ossa²,

González-Delgado³

et al. 2018

ces

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Biogas represents a green energy source that has received major attention as an alternative for fossil fuel depletion. In this work, corn crop residues were used as feedstock for biogas production by anaerobic digestion. The effect of alkaline pretreatment was also evaluated. Proximate analysis was performed to inoculum samples in order to determine volatile and total solids content. Experiments were performed in duplicate varying both parameter particle size (0.5 mm, 1 mm, 2 mm, and in natura) and inoculum to substrate ratio (1:1, 2:1, and 3:1). The highest amount of biogas (392.75 mL) was obtained from corn stalk without pretreatment using 1 mm particle size and 1:1 inoculum to substrate (I:S) ratio. In addition, the highest yield (6.29x10-2 m 3 / kg SV substrate) was achieved for pretreated corn leaf biomass using in natura particle size and 3:1 I:S ratio, which confirms that alkaline pretreatment facilitates the hydrolysis stage during the anaerobic digestion process. These results suggested that alkaline pretreatment enhances biogas production from corn crop residual wastes.

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“…Agricultural biomass wastes have been considered as an alternative approach because of its availability and non-competing against food crops for land and fresh water [9]. Corn stover is a by-product generated by corn grain cultivation including husks, cobs, leaves, and stalks with high content of cellulose and hemicellulose [17]. Corn stover has been widely investigated through enzymatic hydrolysis and solid state anaerobic digestion for biogas production [3].…”

Section: Introductionmentioning

confidence: 99%

Potential for degradation of lignocellulosic biomass via alkaline pretreatment using corn crop residual biomass

Angulo-Padilla¹,

Ossa²,

González-Delgado³

et al. 2018

ces

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The increasing interest in the development of renewable energy sources such as biogas or bioethanol has led to study different lignocellulosic biomass as feedstock. In this work, corn biomass (stalk and leaf) was used to obtain total reducing sugar (TRS) and evaluate its suitability as feedstock for biofuels production. Biomass characterization was carried out by high performance liquid chromatography (HPLC) technique in order to determine main components (cellulose, hemicellulose, and lignin). For TRS quantification, different biomass particle size (0.5 mm, 1 mm, 2 mm, and in natura) were considered and the effect of alkaline pretreatment was studied in corn stalk, corn leaf, and corn stalk/leaf biomasses. It was found that corn cultivation wastes biomass exhibited high cellulose content of 28.38 g/L and 19.02 g/L for stalk and leaf, respectively. In addition, the highest concentration of TRS (28.89 g/L) was achieved using pretreated stalk/leaf biomass with 0.5 mm particle size indicating that alkaline pretreatment improves the TRS concentration. These results suggested that corn crop residues are an attractive feedstock for producing biofuels.

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Lignocellulosic waste valorisation strategy through enzyme and biogas production

Cited by 71 publications

References 40 publications

Insight into Pretreatment Methods of Lignocellulosic Biomass to Increase Biogas Yield: Current State, Challenges, and Opportunities

Insight into Pretreatment Methods of Lignocellulosic Biomass to Increase Biogas Yield: Current State, Challenges, and Opportunities

Effect of alkaline pretreatment on biogas production from corn (Zea mays) crop residues biomass

Potential for degradation of lignocellulosic biomass via alkaline pretreatment using corn crop residual biomass

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