木质纤维素生物质的生物预处理:将固体废物转化为增值产品的一种环境友好和可持续的方法

IF 11.4 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Critical Reviews in Environmental Science and Technology Pub Date : 2023-11-09 DOI:10.1080/10643389.2023.2277670

None Anu, None Alokika, R. C. Kuhad, Alexander Rapoport, Vinod Kumar, Davender Singh, Vijay Kumar, Santosh Kumar Tiwari, Shruti Ahlawat, Bijender Singh

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引用次数: 0

摘要

摘要农作物收获过程中会产生大量的农业废弃物，露天焚烧会造成环境污染和健康风险。由于木质纤维素的结构复杂性及其预处理的物理和化学方法相关的问题，迫切需要一种生态友好的预处理策略。微生物及其酶参与的生物预处理由于不释放或不需要有毒化学物质，是一种对环境无害的经济处理方法。在微生物中，具有高效酶机制的丝状真菌(主要是担子菌)已被用于木质纤维素生物质的高效脱木质素和生物转化。酶介导的预处理进一步改善了植物生物质的糖化过程，与微生物预处理相比没有糖的损失。堆肥、青贮、固态发酵和沼气生产都是基于生物预处理，用于产生增值产品。生物预处理不需要/释放有毒化学物质，但在解毒这类有毒化合物方面非常有用。生物预处理受生物和非生物因素的影响显著。预处理的生物质被纤维素酶和木聚糖酶水解成糖，发酵成生物燃料、有机酸、酶和其他产品。通过与温和的物理化学方法相结合，克服了生物预处理缓慢和长潜伏期的特点。此外，基于综合生物处理的生物炼制方法通过涉及微生物联合体在单一步骤中生产生物燃料和其他增值产品，增强了生物预处理的潜力。因此，基于生物预处理的生物炼制方法将非常有利于大规模生产木质纤维素的增值产品，同时减少环境污染和固体废物管理。关键词:生物转化;生物预处理;生物精炼;复合生物加工;可再生生物燃料;;纤维素生物;编辑:Vijai Kumar Gupta和Lena Q. Ma披露声明作者未报告潜在利益冲突。数据可用性声明与这篇综述文章相关的数据是基于从该领域开展的研究工作中收集的信息。alokika感谢新德里科学与工业研究理事会(CSIR)在撰写本文期间提供的财政援助(No. 09/382(0179)/2016-EMR-I)。BS和Anu感谢哈里亚纳邦科技国务委员会，Panchkula以研究资助的形式提供财政支持。HSCST/R&D/2017/62)和fellowship (No. 1743, 2017年4月12日)。

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Biological pretreatment of lignocellulosic biomass: An environment-benign and sustainable approach for conversion of solid waste into value-added products

AbstractAgricultural residue is produced in large quantities during crop harvesting, and open burning of this waste causes environmental pollution and health risks. Due to the structural complexity of the lignocellulose and problems associated with physical and chemical methods of its pretreatments, there is an utmost need for an eco-friendly pretreatment strategy. Biological pretreatment involving microorganisms and their enzymes is an environment-benign and economic process due to lack of release or requirement of toxic chemicals during the process. Among microorganisms, filamentous fungi (mainly Basidiomycetes) with efficient enzymatic machinery have been used in efficient delignification and bioconversion of lignocellulosic biomass. Enzyme-mediated pretreatment has further improved the saccharification of plant biomass with no sugar loss as in case of microbial pretreatment. Composting, ensiling, solid state fermentation, and biogas production are based on biological pretreatment, which are used for the generation of value-added products. Biological pretreatment does not require/release toxic chemicals but, is highly useful in detoxification of such toxic compounds. Biological pretreatment is significantly affected by biotic and abiotic factors. Pretreated biomass is hydrolyzed by cellulases and xylanases into sugars that are fermented into biofuels, organic acids, enzymes, and other products. The slow and long incubation nature of biological pretreatment has been overcome by combining with milder physico-chemical methods. Furthermore, the consolidated bioprocessing-based biorefinery approach has enhanced the potential of biological pretreatment by involving microbial consortium for the production of biofuels and other value-added products in a single step. Therefore, biological pretreatment-based biorefinery approach would be quite beneficial for the large-scale production of value-added products from lignocellulose with concomitant reduction in environmental pollution and solid waste management.Keywords: Bioconversionbiological pretreatmentbiorefineryconsolidated bioprocessing renewable biofuelslignocellulosic biomassHandling Editors: Vijai Kumar Gupta and Lena Q. Ma Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe data related to this review article is based on the information collected from research work carried out in the field.Additional informationFundingAlokika is grateful to the Council of Scientific and Industrial Research (CSIR), New Delhi, for financial assistance (No. 09/382(0179)/2016-EMR-I) during writing this review. BS and Anu are thankful to the Haryana State Council for Science and Technology, Panchkula for providing financial support in the form of a research grant (No. HSCST/R&D/2017/62) and fellowship (No. 1743, dated April 12, 2017), respectively during the writing of this review.

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来源期刊

Critical Reviews in Environmental Science and Technology 环境科学-环境科学

CiteScore

27.30

自引率

1.60%

发文量

审稿时长

2 months

期刊介绍： Two of the most pressing global challenges of our era involve understanding and addressing the multitude of environmental problems we face. In order to tackle them effectively, it is essential to devise logical strategies and methods for their control. Critical Reviews in Environmental Science and Technology serves as a valuable international platform for the comprehensive assessment of current knowledge across a wide range of environmental science topics. Environmental science is a field that encompasses the intricate and fluid interactions between various scientific disciplines. These include earth and agricultural sciences, chemistry, biology, medicine, and engineering. Furthermore, new disciplines such as environmental toxicology and risk assessment have emerged in response to the increasing complexity of environmental challenges. The purpose of Critical Reviews in Environmental Science and Technology is to provide a space for critical analysis and evaluation of existing knowledge in environmental science. By doing so, it encourages the advancement of our understanding and the development of effective solutions. This journal plays a crucial role in fostering international cooperation and collaboration in addressing the pressing environmental issues of our time.