Methane production from acid hydrolysates of Agave tequilana bagasse: Evaluation of hydrolysis conditions and methane yield

Arreola-Vargas, Jorge; Ojeda-Castillo, Valeria; Snell‐Castro, Raúl; Corona-González, Rosa Isela; Alatriste‐Mondragón, Felipe; Méndez‐Acosta, Hugo Oscar

doi:10.1016/j.biortech.2015.01.036

Cited by 56 publications

(36 citation statements)

References 32 publications

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“…In comparison with other pre-treatments with mineral acids [14,15] or bases [16,17] added to the reaction media, autohydrolisis has a lower environmental impact, as the only reagent is water and no further detoxification treatments are required to neutralize the sludges. Autohydrolysis is also a cost effective process, as the variation of pH in the liquors is very low and there is no corrosion of the equipment [18,19].…”

Section: Introductionmentioning

confidence: 99%

Optimal conditions for hemicelluloses extraction from Eucalyptus globulus wood: hydrothermal treatment in a semi-continuous reactor

Gallina

Cabeza

Biasi

et al. 2016

Fuel Processing Technology

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Optimal conditions for hemicellulose extraction from wooden biomass in a semi-continuous system have been assessed in this work. This study would constitute the first stage for a profitable and green industrial process. Eucalyptus globulus was selected as raw material due to its low water consumption, high growth and its efficiency in lignocellulose production. Moreover its cultivation is very popular in southern Europe. Samples of 5.0 g of wood were fractioned using a pressurized hot water semicontinuous system, to produce sugars (pentoses and hexoses) and a solid residue enriched in lignin.Five flow rates between 2.50 and 20.00 mL/min and four temperatures between 135.0 and 285.0 ºC were tested in order to maximize the production of sugars, avoiding the formation of degradation products.Optimum conditions for the extraction of hemicellulose were identified at 185.0 ºC and 5.00 mL/min, leading to a pentoses yield of 67.409 wt%, with 0.702 wt% of degradation products. Almost all the pulp is extracted at 285.0 ºC. SEM images show very well the changes in the wood structure at different temperatures.A kinetic model was developed, describing the extraction and hydrolysis of hemicellulose and cellulose with absolute average deviations around 10 % for sugar extracted mass.

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Section: Introductionmentioning

confidence: 99%

Optimal conditions for hemicelluloses extraction from Eucalyptus globulus wood: hydrothermal treatment in a semi-continuous reactor

Gallina

Cabeza

Biasi

et al. 2016

Fuel Processing Technology

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“…; Arreola‐Vargas et al . , ). Results retrieved from gDNA showed a stable community since Archaea abundances values for the inoculum and at the end of stages 1 and 2 were 3·3 × 10 7 , 3·2 × 10 7 and 3·6 × 10 7 respectively.…”

Section: Resultsmentioning

confidence: 99%

“…In this context, the unchanged composition of the Archaea community from gDNA samples observed in this study is a phenomenon that has been described by Arreola‐Vargas et al . () during the operation of an AnSBR digester fed with acid hydrolysates of ATAB for methane production. In another study, Jáuregui‐Jáuregui et al .…”

Section: Discussionmentioning

confidence: 99%

“…This bagasse was used to produce acid hydrolysates according to Arreola‐Vargas et al . (). After acid hydrolysis, these hydrolysates were characterized in terms of: (i) total sugars by the phenol‐sulphuric acid method (Dubois et al .…”

Section: Methodsmentioning

confidence: 97%

“…; Arreola‐Vargas et al . , ). However, the microbial community composition has only been characterized in terms of genomic DNA (gDNA).…”

Section: Introductionmentioning

confidence: 99%

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Active prokaryotic population dynamics exhibit high correlation to reactor performance during methane production from acid hydrolysates ofAgave tequilanavar.azulbagasse

Snell‐Castro¹,

Méndez‐Acosta²,

Arreola-Vargas³

et al. 2019

J Appl Microbiol

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Aims The purpose of this study was to apply cDNA approach for the characterization of active prokaryotic community to understand microbial scenarios and performance of an AnSBR digester fed with acid hydrolysates of Agave tequilana var. azul bagasse (ATAB). Methods and Results The digester was implemented for methane production under organic loading rate (OLR) disturbances to correlate physicochemical variables with changes in abundance, diversity and population dynamics of active Bacteria and Archaea by principal components analysis (PCA). Results indicated that methane yield increased as well as active syntrophic relationships for interspecies hydrogen/formate (Anaerolinaceae‐Methanobacterium beijingense) and acetate (Anaerolinaceae‐Methanosaeta concilii) transfers at 8 g‐COD l−1 day−1. However, methane yield was negatively affected at 16 g‐COD l−1 day−1 due to the competition for acetate by active Desulfovibrio marrakechensis and volatile fatty acids inhibition. Conclusions Microbial scenarios obtained by PCA correlations indicated that methane production from acid hydrolysates of ATAB was feasible at 8 g‐COD l−1 day−1. The digester operation at higher OLR only favoured methanogenesis by the hydrogenotrophic pathway. Significance and Impact of the Study Only cDNA analysis showed Archaea population dynamics, exhibiting high correlation with physicochemical variables towards the understanding of the methanogenic digester performance during OLR disturbances.

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Recent developments in Agave performance as a drought‐tolerant biofuel feedstock: agronomics, characterization, and biorefining

Perez-Pimienta

Lopez-Ortega

Sánchez

2017

Biofuels Bioprod Bioref

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In recent years, Agave has shown its potential as a bioenergy feedstock with a higher land productivity (up to 42 ton/ha year) than traditional feedstocks. Other features are its adaptation mechanism to high temperatures and its resistance to drought. The agronomics of Agave in Mexico are discussed, including total land planted, inputs required, and the harvesting and transport costs. Heating values, mineral concentration, and carbohydrate and lignin content show the potential of the Agave species to compete with current bioenergy crops. Currently, the pre-treatment of Agave is the most widely studied stage in biofuels and value-added products, which include technologies capable of reducing its recalcitrance while removing xylan and/or lignin and reducing cellulose crystallinity, among other effects, to increase the overall yield in saccharifi cation and fermentation, which will be discussed as well. In addition to spirits and fi bers from industrial interests, different liquid (ethanol and n-butanol) and gaseous (methane and hydrogen) biofuels, including certain value-added products (enzymes, lactic acid, and succinic acid), can be obtained from Agave in high yields. The main objective of this review is to address the recent advances in the utilization of Agave as a bioenergy feedstock for biofuels and value-added products within a sustainable biorefi nery scheme.

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Methane production from acid hydrolysates of Agave tequilana bagasse: Evaluation of hydrolysis conditions and methane yield

Cited by 56 publications

References 32 publications

Optimal conditions for hemicelluloses extraction from Eucalyptus globulus wood: hydrothermal treatment in a semi-continuous reactor

Optimal conditions for hemicelluloses extraction from Eucalyptus globulus wood: hydrothermal treatment in a semi-continuous reactor

Active prokaryotic population dynamics exhibit high correlation to reactor performance during methane production from acid hydrolysates ofAgave tequilanavar.azulbagasse

Recent developments in Agave performance as a drought‐tolerant biofuel feedstock: agronomics, characterization, and biorefining

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