High-value utilization of agricultural residues based on component characteristics: Potentiality and challenges

Agricultural residues (ARs) mainly consist of lignocellulose materials, such as crop straws and by-products from agricultural processing, with a global annual output exceeding 1.9 billion tons. Currently, effective waste management and resource utilization have garnered significant attention. Over t...

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Main Authors: Rui Xu, Jingwen Chen, Nina Yan, Bingqian Xu, Zhichao Lou, Lei Xu
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2025-08-01
Series:Journal of Bioresources and Bioproducts
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Online Access:http://www.sciencedirect.com/science/article/pii/S2369969825000118
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author Rui Xu
Jingwen Chen
Nina Yan
Bingqian Xu
Zhichao Lou
Lei Xu
author_facet Rui Xu
Jingwen Chen
Nina Yan
Bingqian Xu
Zhichao Lou
Lei Xu
author_sort Rui Xu
collection DOAJ
description Agricultural residues (ARs) mainly consist of lignocellulose materials, such as crop straws and by-products from agricultural processing, with a global annual output exceeding 1.9 billion tons. Currently, effective waste management and resource utilization have garnered significant attention. Over the past decades, the results of numerous studies have shown that the use of ARs to produce organic fertilizers, biofuels, and new bio-based materials is an effective strategy for mitigating the global energy crisis and environmental degradation. Pretreatment technology has become a major focus of value-added transformation due to the heterogeneity and complexity of AR. However, most studies mainly concentrated on innovations in pretreatment technology and product quality, with few systematically addressing the comprehensive framework that encompasses composition analysis, pretreatment, transformation path, and energy assessment. This paper reviews the value-added conversion system of AR and analyzes its composition characteristics and pretreatment technologies. It provides a forward-looking perspective and an overview of technological advancement in diverse value-added pathways, such as physical utilization, thermochemical conversion, and biological fermentation. Additionally, it comprehensively evaluates energy consumption and environmental impacts across different conversion methods, addressing a significant gap in systematic evaluation in this field. This study identified key research trends by analyzing 8 641 high-quality articles using VOSviewer software based on Web of Science data from the past decade. The focus has progressively shifted from pretreatment technologies, including “steam explosion”, “microwave” and “enzymatic hydrolysis” to primary products, such as “bioethanol” and “biogas” toward evaluating higher echelon of economic and environmental benefit, including “circular economy”, “carbon emission” and “sustainability”. In addition, this review directly addresses current research challenges, such as technical limitations, cost-benefit analysis, and standardization of environmental impact assessment. It also offers constructive suggestions for future research to enhance the efficiency, environmental friendliness, and sustainability of the value-added transformation of AR.
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spelling doaj-art-9f7e4b723ef14e8ea3e3dd60a69d9b4d2025-08-20T03:39:10ZengKeAi Communications Co., Ltd.Journal of Bioresources and Bioproducts2369-96982025-08-0110327129410.1016/j.jobab.2025.01.002High-value utilization of agricultural residues based on component characteristics: Potentiality and challengesRui Xu0Jingwen Chen1Nina Yan2Bingqian Xu3Zhichao Lou4Lei Xu5Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, Jiangsu Engineering Technology Research Center of Biomass Composites and Addictive Manufacturing, Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture and Rural Affairs, Nanjing 210014, ChinaInstitute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, Jiangsu Engineering Technology Research Center of Biomass Composites and Addictive Manufacturing, Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture and Rural Affairs, Nanjing 210014, ChinaInstitute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, Jiangsu Engineering Technology Research Center of Biomass Composites and Addictive Manufacturing, Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture and Rural Affairs, Nanjing 210014, ChinaSingle Molecule Study Laboratory, College of Engineering, University of Georgia, GA 30602, USA; Corresponding authors.Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, Jiangsu Engineering Technology Research Center of Biomass Composites and Addictive Manufacturing, Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; Corresponding authors.Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, Jiangsu Engineering Technology Research Center of Biomass Composites and Addictive Manufacturing, Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China; Corresponding authors.Agricultural residues (ARs) mainly consist of lignocellulose materials, such as crop straws and by-products from agricultural processing, with a global annual output exceeding 1.9 billion tons. Currently, effective waste management and resource utilization have garnered significant attention. Over the past decades, the results of numerous studies have shown that the use of ARs to produce organic fertilizers, biofuels, and new bio-based materials is an effective strategy for mitigating the global energy crisis and environmental degradation. Pretreatment technology has become a major focus of value-added transformation due to the heterogeneity and complexity of AR. However, most studies mainly concentrated on innovations in pretreatment technology and product quality, with few systematically addressing the comprehensive framework that encompasses composition analysis, pretreatment, transformation path, and energy assessment. This paper reviews the value-added conversion system of AR and analyzes its composition characteristics and pretreatment technologies. It provides a forward-looking perspective and an overview of technological advancement in diverse value-added pathways, such as physical utilization, thermochemical conversion, and biological fermentation. Additionally, it comprehensively evaluates energy consumption and environmental impacts across different conversion methods, addressing a significant gap in systematic evaluation in this field. This study identified key research trends by analyzing 8 641 high-quality articles using VOSviewer software based on Web of Science data from the past decade. The focus has progressively shifted from pretreatment technologies, including “steam explosion”, “microwave” and “enzymatic hydrolysis” to primary products, such as “bioethanol” and “biogas” toward evaluating higher echelon of economic and environmental benefit, including “circular economy”, “carbon emission” and “sustainability”. In addition, this review directly addresses current research challenges, such as technical limitations, cost-benefit analysis, and standardization of environmental impact assessment. It also offers constructive suggestions for future research to enhance the efficiency, environmental friendliness, and sustainability of the value-added transformation of AR.http://www.sciencedirect.com/science/article/pii/S2369969825000118Agricultural residueBibliometric analysisComposition characteristicsValue-added transformation
spellingShingle Rui Xu
Jingwen Chen
Nina Yan
Bingqian Xu
Zhichao Lou
Lei Xu
High-value utilization of agricultural residues based on component characteristics: Potentiality and challenges
Journal of Bioresources and Bioproducts
Agricultural residue
Bibliometric analysis
Composition characteristics
Value-added transformation
title High-value utilization of agricultural residues based on component characteristics: Potentiality and challenges
title_full High-value utilization of agricultural residues based on component characteristics: Potentiality and challenges
title_fullStr High-value utilization of agricultural residues based on component characteristics: Potentiality and challenges
title_full_unstemmed High-value utilization of agricultural residues based on component characteristics: Potentiality and challenges
title_short High-value utilization of agricultural residues based on component characteristics: Potentiality and challenges
title_sort high value utilization of agricultural residues based on component characteristics potentiality and challenges
topic Agricultural residue
Bibliometric analysis
Composition characteristics
Value-added transformation
url http://www.sciencedirect.com/science/article/pii/S2369969825000118
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