Anaerobic digestion of extracts from steam exploded Agave tequilana bagasse

Weber, Bernd; Estrada-Maya, Andrea; Sandoval-Moctezuma, Andrea C.; Martínez-Cienfuegos, Iván G.

doi:10.1016/j.jenvman.2019.05.093

Cited by 27 publications

(5 citation statements)

References 54 publications

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“…The corresponding rate arrived at 34.55%, 75.23% and 24.68%. Obviously, the SE influences more obviously on hemicellulose depolymerization than that of cellulose [19,20]. Figure 1a-c shows that the correlationship of SE severity with glucose, xylose and arabinose was 0.649, 0.734 and 0.697, respectively, indicating that there is not a simple linear relationship between the precipitation of monosaccharides and the SE severity.…”

Section: Chemical Composition Of Washing Liquid From Exploded Vrmentioning

confidence: 96%

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Development of optimal steam explosion pretreatment and highly effective cell factory for bioconversion of grain vinegar residue to butanol

Xia¹,

Peng²,

Xue³

et al. 2020

Biotechnol Biofuels

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Background: The industrial vinegar residue (VR) from solid-state fermentation, mainly cereals and their bran, will be a potential feedstock for future biofuels because of their low cost and easy availability. However, utilization of VR for butanol production has not been as much optimized as other sources of lignocellulose, which mainly stem from two key elements: (i) high biomass recalcitrance to enzymatic sugar release; (ii) lacking of suitable industrial biobutanol production strain. Though steam explosion has been proved effective for bio-refinery, few studies report SE for VR pretreatment. Much of the relevant knowledge remains unknown. Meanwhile, recent efforts on rational metabolic engineering approaches to increase butanol production in Clostridium strain are quite limited. In this study, we assessed the impact of SE pretreatment, enzymatic hydrolysis kinetics, overall sugar recovery and applied atmospheric and room temperature plasma (ARTP) mutant method for the Clostridium strain development to solve the long-standing problem. Results: SE pretreatment was first performed. At the optimal condition, 29.47% of glucan, 71.62% of xylan and 22.21% of arabinan were depolymerized and obtained in the water extraction. In the sequential enzymatic hydrolysis process, enzymatic hydrolysis rate was increased by 13-fold compared to the VR without pretreatment and 19.60 g glucose, 15.21 g xylose and 5.63 g arabinose can be obtained after the two-step treatment from 100 g VR. Porous properties analysis indicated that steam explosion can effectively generate holes with diameter within 10-20 nm. Statistical analysis proved that enzymatic hydrolysis rate of VR followed the Pseudop-second-order kinetics equation and the relationship between SE severity and enzymatic hydrolysis rate can be well revealed by Boltzmann model. Finally, a superior inhibitortolerant strain, Clostridium acetobutylicum Tust-001, was generated with ARTP treatment. The water extraction and enzymolysis liquid gathered were successfully fermented, resulting in butanol titer of 7.98 g/L and 12.59 g/L of ABE. Conclusions: SE proved to be quite effective for VR due to high fermentable sugar recovery and enzymatic hydrolysate fermentability. Inverse strategy employing ARTP and repetitive domestication for strain breeding is quite feasible, providing us with a new tool for solving the problem in the biofuel fields.

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Section: Chemical Composition Of Washing Liquid From Exploded Vrmentioning

confidence: 96%

“…In addition, the treated-vinegar residue was also mixed directly with a certain volume of deionized water to analyze furfural and HMF. The mass balance of the steam explosion treatment followed the method of Weber et al [20].…”

Section: Steam Explosion Pretreatmentmentioning

confidence: 99%

Development of optimal steam explosion pretreatment and highly effective cell factory for bioconversion of grain vinegar residue to butanol

Xia¹,

Peng²,

Xue³

et al. 2020

Biotechnol Biofuels

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“…On the other hand, to analyse the sustainability pillars in three aspects. In terms of the environmental aspect, since a huge number of tequila were made every year in Mexico, numerous wastes were left after cooking the stems and extracting sugar to make Tequila, they could potentially be a burden to the environment if they continue to be consumed without finding a better solution to the existing environmental problems; as to the social aspect, all certified tequila companies listed on the website of CRT [89] could take an active part in undertaking corporate social responsibilities so as to provide a better living environment for Mexicans; when concerned with the economic aspect, the traditional way of handling bagasse is to use them for animal feeding [90] or composting among others [91], however, due to the large amount of bagasse produced and left every year, an alternative way of making the most use of the bagasse is to seek an alternative solution, for instance, to create a new composite material conformed with the principles of circular economy. Thus, based on these facts, we may propose the hypothesis that, are there any possibilities we could take full advantages of using agave bagasse?…”

Section: Case Analysismentioning

confidence: 99%

Designing a Framework for Materials Flow by Integrating Circular Economy Principles with End-of-Life Management Strategies

et al. 2022

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Circular economy is an upward trending notion that has drawn worldwide attention of policymakers, industry administrators, environmentalist as well as academic researchers. Though there are several tools developed for monitoring the material recovery, a very few number of research have been conducted to integrate circular economy principles with end-of-life (EOL) management strategies. This paper proposes an EOL-driven circular economy framework for the management of materials flow so as to extend the lifetime of materials through improved durability as well as to provide more social, economic and environmental benefits through less material waste. A case study from the agricultural waste industry is presented in order to test the model and validate its performance. The results show that the proposed framework has a good potential for small and medium enterprises (SME) advances.

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“…The organosolv-steam-exploded products were filtrated using vacuum filtration, and the solid residue was washed using ethanol and dried and continued to the anaerobic digestion process. Weber et al [52] used steam explosion with temperature setting 142, 164, and 179°C (0,38, 0,68, and 0,98 MPa), after that the solid reside of steamexploded was separated by centrifuge. The methane production was prepared by a 2:1 ratio between inoculum and substrate.…”

Section: Steam Explosion Pretreatmentmentioning

confidence: 99%

Steam Explosion Pretreatment: Biomass Waste Utilization for Methane Production

Sholahuddin¹,

Nakamura²,

Asada³

2022

Biomass, Biorefineries and Bioeconomy

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Lignocellulosic biomass as a second-generation biofuel resource such as waste from agricultural, forester industry, and unutilized wood and non-wood biomass was widely reported to use it as feedstock for methane production. As the carbon-neutral resources, biomass waste conversion for biofuel is in line with the SDGs 7 and 15 goal that can meet the needs and qualify to the standard of sustainable consumption and production pattern, and increasing the renewable energy. The wood and non-wood unutilized biomass and biomass waste are commonly faced with the recalcitrant character of the lignocellulose complex (LCC) which impacted the digestion process of the methane fermentation. Steam explosion pretreatment was enhanced the methane production by breaking the LCC into cellulose, hemicellulose, and lignin-derived product generated from the pretreatment process. Those steam-exploded products were reported effective in the conversion process into methane. The combination of steam explosion pretreatment which is an environmentally friendly pretreatment, and the use of carbon-neutral resources will provide the green biofuel which helps decrease the greenhouse gasses from the biomass waste dumping process and convert it into sustainable biofuel i.e. methane. This chapter will describe the steam explosion system development on the utilization of biomass for methane production, and the action of methane production enhancement.

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Anaerobic digestion of extracts from steam exploded Agave tequilana bagasse

Cited by 27 publications

References 54 publications

Development of optimal steam explosion pretreatment and highly effective cell factory for bioconversion of grain vinegar residue to butanol

Development of optimal steam explosion pretreatment and highly effective cell factory for bioconversion of grain vinegar residue to butanol

Designing a Framework for Materials Flow by Integrating Circular Economy Principles with End-of-Life Management Strategies

Steam Explosion Pretreatment: Biomass Waste Utilization for Methane Production

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