High-pressure CO2 hydrothermal pretreatment of peanut shells for enzymatic hydrolysis conversion into glucose

Ge, Shengbo; Wu, Yingji; Xia, Changlei; Mei, Changtong; Cai, Liping; Shi, Sheldon Q.; Sonne, Christian; Shi, Sheldon Q.; Tsang, Yiu Fai

doi:10.1016/j.cej.2019.123949

Cited by 68 publications

(23 citation statements)

References 36 publications

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“…Meanwhile, some representative studies in the literature were compared and listed in Table 2. Compared with the enzymatic hydrolysis results of the literature (Ge et al 2020;Solarte-Toro et al 2020;Wang et al 2019;Yuan et al 2019) that were achieved in 72 h (Table 2, entries 1-4), a comparable enzymatic digestibility was obtained by the traditional enzymatic hydrolysis process in this work (Table 2, entry 5). It appears that the hemicellulose and cellulose in the corncob pretreated with MMCSA has achieved almost a complete sacchari cation by both methods, but the in situ enzymatic hydrolysis method presents obvious advantages over the traditional one.…”

Section: In Situ Enzymatic Hydrolysis Of the Pretreated Corncobsupporting

confidence: 73%

“…To alleviate the global resource shortage and environmental issues associated with the currently heavy exploitation and utilization of fossil fuel feedstock, the valorisation of renewable biomass towards the production of energy, fuels and chemicals, based on green chemistry and technology, is crucial for a sustainable development of our society and economy (Climent et al 2014;Dong et al 2019;Isikgor and Becer 2015;Wu et al 2019). Within this context, the e cient and economically viable hydrolysis of polysaccharide components in lignocellulose into reducing sugars is one of the key pathways towards generating biofuels and other biobased (platform) chemicals (Ge et al 2020;Huang et al 2016). The most commonly adopted method to generate sugars from biomass is its pretreatment combined with the subsequent enzymatic hydrolysis process (Huang et al 2018;Lin et al 2020;Schneider et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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Generation of Reducing Sugars from Corncob by Magnetic Carbon-Based Solid Acid Pretreatment Combined with In Situ Enzymatic Hydrolysis

Wang

Liang

et al. 2021

Preprint

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The efficient conversion of hemicellulose and cellulose in lignocellulosic biomass to reducing sugars remains as one major challenge for the development of biorefinery. In this work, corncob saccharification in the aqueous phase was realized efficiently via pretreatment by magnetic carbon-based solid acid (MMCSA) catalyst, combined with the subsequent in situ enzymatic hydrolysis (occurring in the same pretreatment system after MMCSA separation). Under the optimized pretreatment conditions (the ratio of corncob, catalyst and water is 1:1:20 (g:g:mL), 160°C for 20 min) and in situ enzymatic hydrolysis (cellulase loading of 20 FPU / g, 24 h), an xylose yield of 88.77% and an enzymatic digestibility of 91.24% were obtained, respectively. Compared with the traditional enzymatic process, the present in situ enzymatic system has advantages of reduced enzyme loading, water consumption, and improved saccharification efficiency. Thus, this study provides a more sustainable and effective method for the saccharification of hemicellulose and cellulose in the corncob to produce reducing sugars.

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Section: In Situ Enzymatic Hydrolysis Of the Pretreated Corncobsupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Generation of Reducing Sugars from Corncob by Magnetic Carbon-Based Solid Acid Pretreatment Combined with In Situ Enzymatic Hydrolysis

Wang

Liang

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…As the earliest researched biofuels, their industrial production techniques are already mature, and these biofuels have been used commercially in marine vessels or vehicles [ 10 ]. For example, the bioethanol used in the U.S. accounted for 46% of total biomass fuels in 2018 [ 11 ], and the global bioethanol production market reached 110 billion litres in the same year. However, first-generation feedstocks are primarily edible, so they will always compete with food crops or feed production.…”

Section: Categorizing Generations Of Plant Feedstocksmentioning

confidence: 99%

Recent advances in the valorization of plant biomass

Ning

Yang

et al. 2021

Biotechnol Biofuels

164

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Plant biomass is a highly abundant renewable resource that can be converted into several types of high-value-added products, including chemicals, biofuels and advanced materials. In the last few decades, an increasing number of biomass species and processing techniques have been developed to enhance the application of plant biomass followed by the industrial application of some of the products, during which varied technologies have been successfully developed. In this review, we summarize the different sources of plant biomass, the evolving technologies for treating it, and the various products derived from plant biomass. Moreover, the challenges inherent in the valorization of plant biomass used in high-value-added products are also discussed. Overall, with the increased use of plant biomass, the development of treatment technologies, and the solution of the challenges raised during plant biomass valorization, the value-added products derived from plant biomass will become greater in number and more valuable.

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“…At present, this problem of plastic pollution can be solved by the development of degradable plastic as a substitute for daily life use by both landfill and incineration processes [8][9][10]. However, these methods would cause environmental pollution with their waste residues [11,12]. On the other hand, a massive amount of wood waste generated in factories worldwide during manufacturing processes is commonly disposed to landfills; however, its decomposition process takes a significant amount of time.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterisation of Sustainable Wood Plastic Composites Extracted from Municipal Solid Waste

et al. 2021

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Municipal solid waste (MSW) contains plastic waste that can be used as a sustainable green substitute to reduce oil footprints, CO2 emissions, and environmental pollution. This study aims to recycle plastic waste by manufacturing wood-plastic composites and to improve its mechanical properties by using additives, coupling agents, and lubricants. These composites are prepared by mixing 40–70% of wood flour with 20–25% of a polymer matrix. Wood was degraded at 220 °C, and then the composites were processed at 50 °C. The manufacturing process carried out in the study involved wood waste meshing, drying, shredding, drying, trimming, filling, blending, compounding, and extrusion moulding. The compounding of composites was accomplished in twin-screw extruders. Once the mixture was uniformly mixed, its final shape was given by a two-step extrusion moulding. Previously, researchers aimed at enhancing the mechanical properties of the composites, but our research focus was to improve their durability for different industrial applications. The results suggest that the impact strength is 17 MPa with 50% of wood powder ratio while the maximum value for the tensile strength is 32.5 MPa. About 50% of an increase in wood powder resulted in 8.1% bending strength increase from 26.1 to 32.8 MPa. Reducing the plastic matrix and the wood-particles water swelling ratio resulted in better mechanical properties. The wood species also affected the mechanical properties with their excellent dimensional stability and less variability. A high proportion of wood fibre tends to increase its steady-state torque and viscosity. The mechanical properties against different wood-flour proportions indicate that composite materials exhibit superior water swelling behaviour and extrusion quality.

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High-pressure CO2 hydrothermal pretreatment of peanut shells for enzymatic hydrolysis conversion into glucose

Cited by 68 publications

References 36 publications

Generation of Reducing Sugars from Corncob by Magnetic Carbon-Based Solid Acid Pretreatment Combined with In Situ Enzymatic Hydrolysis

Generation of Reducing Sugars from Corncob by Magnetic Carbon-Based Solid Acid Pretreatment Combined with In Situ Enzymatic Hydrolysis

Recent advances in the valorization of plant biomass

Preparation and Characterisation of Sustainable Wood Plastic Composites Extracted from Municipal Solid Waste

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