Exploitation of lignocellulosic-based biomass biorefinery: A critical review of renewable bioresource, sustainability and economic views

Chen, Zhonghao; Chen, Lin; Khoo, Kuan Shiong; Gupta, Vijai Kumar; Sharma, Minaxi; Show, Pau Loke; Yap, Pow-Seng

doi:10.1016/j.biotechadv.2023.108265

Cited by 54 publications

(13 citation statements)

References 377 publications

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“…Due to global population growth, energy and resource consumption is increasing, which is also associated with high waste production. The problems of waste management and the associated economic, environmental, and social costs will, therefore, increase in the future (Chen et al, 2023). Figure 1 displays the various types of agro-industrial waste.…”

Section: Introductionmentioning

confidence: 99%

Current circular economy aspect in valorization of agro-industrial waste as value-added products

Đorđević,

Vujetić,

Pintać-Šarac

2024

Food & Feed Res

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Agro-industrial waste has been considered to be a good source for the production of biofuels. Apart from that, it has also proven to be a valuable source of high-value-added products. The conversion of agro-industrial waste into high-value-added products allows the whole process to be designed in line with the biorefinery and zero-waste circular economy concept, especially because all parts of agro-industrial waste can be utilised. The application of the circular economy to agro-industrial systems is spreading globally and is a response to the current unsustainable model of production and consumption based on resource depletion and increased demand. This review provides a more detailed understanding of the potential of the circular economy as a response to the need to reduce the environmental impact of agro-industrial waste in organic production and to promote a more sustainable agri-food industry.

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Section: Introductionmentioning

confidence: 99%

Current circular economy aspect in valorization of agro-industrial waste as value-added products

Đorđević,

Vujetić,

Pintać-Šarac

2024

Food & Feed Res

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“…The depletion of non-renewable resources and the ecological crisis have made lignocellulose an alternative biomass resource to petroleum-based feedstocks [1]. For instance, enzymatic hydrolysis in biomass refining facilitates the conversion of cellulose and hemicellulose into monosaccharides, which can be further converted into chemicals and biofuels such as ethanol [2], lactic acid [3], butanol [4], and levulinic acid [5].…”

Section: Introductionmentioning

confidence: 99%

The Limitation of Unproductive Binding of Cellulases to Lignin by Ozone Pretreatment

Zhang,

Zhao,

et al. 2024

Applied Sciences

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The limitation of enzymatic saccharification of lignocellulose is attributed to the nonproductive adsorption between lignin and cellulase. This study aims to investigate the effects of ozone pretreatment on the physical structure and chemical properties of milled wood lignin (MWL). The objective is to reduce the non-productive adsorption of cellulase on lignin. The structure–activity relationship between the physical structure of MWL and the occurrence of nonproductive adsorption was analysed using two-dimensional heteronuclear single quantum coherence–nuclear magnetic resonance (HSQC-NMR) and phosphorus-31 nuclear magnetic resonance spectrum (31P-NMR), etc. The results indicate that ozone pretreatment resulted in a decrease in the phenolic hydroxyl content and S/G ratio, an increase in the carboxyl content, and a negative zeta potential of MWL. The maximum adsorption capacity decreased from 25.77 mg/g to 10.09 mg/g, the Langmuir constant decreased from 13.86 mL/mg to 10.11 mL/mg, and the binding strength decreased from 357.14 mL/g to 102.04 mL/g, as determined by Langmuir isothermal adsorption. This suggests that ozone pretreatment resulted in a reduction in the hydrophobicity of lignin and a weakening of the electrostatic attraction between lignin and cellulase, thereby effectively reducing the non-productive adsorption of cellulase on lignin. This study provides an environmentally friendly pretreatment technique and comprehensively analyses the structural changes of ozone-treated MWL. These findings contribute to a deeper understanding of the interaction between lignin and cellulase.

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“…Acting as a renewable substitute for fossil resources, biomass exhibits low sulfur content and emits zero CO 2 [7][8][9]. Chemical analysis reveals biomass as a feedstock abundant in oxygen but deficient in hydrogen [10,11]. In tandem with societal progress, the accumulation of waste plastics has surged annually, presenting a substantial pool for recycling [12].…”

Section: Introductionmentioning

confidence: 99%

Hydrocarbon-Rich Bio-Oil Production from Ex Situ Catalytic Microwave Co-Pyrolysis of Peanut Shells and Low-Density Polyethylene over Zn-Modified Hierarchical Zeolite

Dong,

Yue,

Bai

et al. 2024

Catalysts

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Peanut shells, a major economic and oil crop in China, boast an abundant availability and remarkably high lignin content compared to other agricultural residues. Previous work indicated that the modified hierarchical zeolite (Zn-ZSM-5/MCM41) was effective in promoting the conversion of intermediate macromolecules during the lignin pyrolysis reaction and enhancing the yield and selectivity of liquid products. Thereby, this study aims to improve the quality of liquid products in the ex situ catalytic microwave co-pyrolysis of peanut shells and LDPE by utilizing Zn-ZSM-5/MCM41. Employing a compound center experimental design, we optimized reaction conditions through response surface analysis. The impact of microwave pyrolysis temperature and the catalyst-to-feedstock ratio on yield distribution and liquid product selectivity was explored. Results indicated a marginal increase in liquid product yield with rising pyrolysis temperatures. Moreover, an initial increase followed by a subsequent decrease in liquid product yield was observed with an increase in the catalyst-to-feedstock ratio. Optimal conditions of 450 °C and a catalyst-to-peanut hull ratio of 2.34% yielded the highest bio-oil yield at 34.25%. GC/MS analysis of the bio-oil revealed a peak in hydrocarbon content at 68.36% under conditions of 450 °C and a catalyst-to-feedstock ratio of 13.66%. Additionally, the quadratic model effectively predicted bio-oil yield and the selectivity for major chemical components. This study underscores the potential of Zn-ZSM-5/MCM41 in optimizing liquid product quality during catalytic co-pyrolysis, offering insights into bio-oil production and its chemical composition.

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Exploitation of lignocellulosic-based biomass biorefinery: A critical review of renewable bioresource, sustainability and economic views

Cited by 54 publications

References 377 publications

Current circular economy aspect in valorization of agro-industrial waste as value-added products

Current circular economy aspect in valorization of agro-industrial waste as value-added products

The Limitation of Unproductive Binding of Cellulases to Lignin by Ozone Pretreatment

Hydrocarbon-Rich Bio-Oil Production from Ex Situ Catalytic Microwave Co-Pyrolysis of Peanut Shells and Low-Density Polyethylene over Zn-Modified Hierarchical Zeolite

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