Article
Agricultural Engineering
Laxmi Sharma, Nurnabi Meherul Alam, Suman Roy, Pratik Satya, Gouranga Kar, Subhojit Ghosh, Tinku Goswami, Bijan Majumdar
Summary: Optimizing alkaline pretreatment and saccharification conditions can enhance saccharification yield of jute biomass. The highest delignification and saccharification were achieved with specific NaOH concentrations, temperature, and enzyme concentrations.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Michael Lugo-Pimentel, Emy Leblanc, Simon Kelley, Jean-Michel Lavoie
Summary: The purpose of this study is to investigate the operating conditions of a physicochemical pretreatment process for lignocellulosic biomass using homogeneous acid catalysts. Four parameters were examined: moisture content, acid catalyst, type of biomass, and reactor morphology. Different types of biomass were processed with sulfuric acid in a meat grinder, and the results showed that biomass moisture above 17% yielded less than 50% glucose. Sulfuric acid exhibited the best performance with a glucose yield of 74.5%, and the glucose yield had a direct relationship with the non-carbohydrate components of biomass.
BIORESOURCE TECHNOLOGY
(2023)
Article
Plant Sciences
Rosario Iacono, Gancho T. Slavov, Christopher L. Davey, John Clifton-Brown, Gordon Allison, Maurice Bosch
Summary: Miscanthus is a promising crop for bioenergy and biorefining in Europe, and its improvement as a crop relies on the creation of new varieties through hybridization. This study analyzed the soil and climatic conditions of the original collection sites of 592 Miscanthus genotypes, and found that Miscanthus species can grow naturally across a range of soil and climate conditions. The results emphasize the potential use of both inter- and intra-specific variation in cell wall characteristics and biomass yield in breeding programs.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Environmental Sciences
Xinlei Huang, Meiying Ye, Lingli Yuan, Yanping Liu
Summary: The choice of silage additives is crucial for storage of silage. Three ensiling methods were used on Miscanthus sinensis and their effects were evaluated based on biochemical methane potential (BMP). The results showed that ensiling with acetic acid was the most effective method, inhibiting harmful bacteria growth and achieving high methane production. The acetic acid and total volatile fatty acid contents were significantly correlated with BMP. This study provides a theoretical basis for improving BMP and achieving better silage effects for M. sinensis.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Chunxiao Gong, Sune Tjalfe Thomsen, Xianzhi Meng, Yunqiao Pu, Maria Puig-Arnavat, Nathan Bryant, Samarthya Bhagia, Claus Felby, Arthur J. Ragauskas, Lisbeth Garbrecht Thygesen
Summary: Industrial pelleting positively affects sugar yield in both acid and alkali pretreatments, while laboratory pelleting affects sugar yield differently based on pretreatment types and biomass species. Pelleting disrupts biomass cell wall structure and influences the stability of hemicellulose and beta-O-4' linkages in lignin.
Article
Green & Sustainable Science & Technology
Peng Liu, Ao Li, Youmei Wang, Qiuming Cai, Haizhong Yu, Yuqi Li, Hao Peng, Qian Li, Yanting Wang, Xiaoyang Wei, Ran Zhang, Yuanyuan Tu, Tao Xia, Liangcai Peng
Summary: This study demonstrated that using a specific Miscanthus substrate to induce Trichoderma reesei can enhance enzymatic saccharification efficiency of various lignocellulose residues, particularly for hemicellulose hydrolysis. The induced enzymes consist of distinct cellulases and high-activity xylanases, providing a potential strategy for large-scale biofuel production in major bioenergy crops.
Review
Chemistry, Multidisciplinary
Jinyu Tan, Yan Li, Xiang Tan, Hongguo Wu, Hu Li, Song Yang
Summary: Straw biomass is a cost-effective and renewable feedstock for producing valuable chemicals and biofuels. Suitable pretreatment is essential for efficient production of fermentable sugars. Various pretreatment methods can effectively separate components and improve accessibility and susceptibility.
FRONTIERS IN CHEMISTRY
(2021)
Article
Energy & Fuels
Nikola Bilandzija, Zeljka Zgorelec, Lato Pezo, Mateja Grubor, Anamarija Gudelj Velaga, Tajana Kricka
Summary: According to the objectives of the EU's climate and energy framework, renewable energy sources are considered important in mitigating climate change. Cultivating energy crops can help clean contaminated soil while providing biomass, but it should be done on marginal soils to avoid conflicts with food production. The investigated biomass quality of Miscanthus x giganteus meets most standards.
JOURNAL OF THE ENERGY INSTITUTE
(2022)
Article
Agricultural Engineering
Lei Zhong, Chao Wang, Guihua Yang, Jiachuan Chen, Feng Xu, Chang Geun Yoo, Gaojin Lyu
Summary: A microwave-assisted guanidine hydrochloride deep eutectic solvent was developed for the pretreatment of castor stalk, showing high efficiency in delignification and enzymatic saccharification, as well as excellent lignin recovery. The guanidine hydrochloride-based DES demonstrated good recyclability and high cellulose hydrolysis rates, making it a promising pretreatment solvent for future biorefinery strategies.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Ming-Zhao Xiao, Si Hong, Xiaojun Shen, Zhi-Yan Du, Tong-Qi Yuan
Summary: Sweet sorghum cultivated on Cd-contaminated farmland showed promising phytoremediation potential and the approach of utilizing sorghum stalks for Cd recovery was explored. Pretreatment of sweet sorghum bagasse with dilute acid significantly improved enzymatic saccharification and achieved Cd recovery.
ENVIRONMENTAL POLLUTION
(2023)
Review
Agricultural Engineering
Wei Wang, Duu-Jong Lee
Summary: Biomass recalcitrance poses a significant challenge for biomass utilization, leading to the development of deep eutectic solvents (DES) as a promising solvent for biomass pretreatment. Current research focuses on the fractionation and saccharification enhancement of lignocellulosic biomass using DES.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Huaxing Fang, Xinyu Xie, Qiulu Chu, Wenyao Tong, Kai Song
Summary: In this study, the authors modified 1,4-butanediol (BDO) organosolv pretreatment with different additives to improve the production of fermentable sugars and lignin antioxidants from hardwood and softwood. The additives were found to have a greater impact on the pretreatment efficiency of softwood compared to hardwood. The addition of 3-hydroxy-2-naphthoic acid (HNA) introduced hydrophilic acid groups to the lignin structure, while the addition of 2-naphthol-7-sulphonate (NS) promoted lignin removal, resulting in improved cellulose accessibility for enzymatic hydrolysis. The modified BDO pretreatment achieved near complete cellulose hydrolysis and maximized sugar yield from softwood, while also producing lignin with great antioxidant activity.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Fanyang Meng, Ning Li, Haiyan Yang, Zhengjun Shi, Ping Zhao, Jing Yang
Summary: The HPAC pretreatment method significantly improved the enzymatic saccharification efficiency of bamboo biomass, leading to a higher utilization rate. It is an efficient and environmentally friendly approach for bamboo biorefinery in the south of China.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Zhengjun Dang, Ye Wang, Meihan Wang, Liyu Cao, Nan Ruan, Yuwei Huang, Fengcheng Li, Quan Xu, Wenfu Chen
Summary: In this study, two independent fragile culm mutants, fc19-1 and fc19-2, resulting from novel mutations of OsIRX10 by the CRISPR/Cas9 system were reported. Compared to wild-type, the mutants exhibited reduced contents of certain cell wall components, but showed increased breaking force and lodging resistance. The mutants also displayed enhanced biomass saccharification and cadmium resistance. Transcriptome analysis revealed alterations in genes mainly involved in carbohydrate and phenylpropanoid metabolism. A hypothetic model was proposed to explain the improvements in lodging resistance, biomass saccharification, and Cd resistance resulting from the FC19 mutation-mediated cell wall remodeling.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Agricultural Engineering
Ekaterina A. Skiba, Elena Ovchinnikova, Vera V. Budaeva, Sardana P. Banzaraktsaeva, Maria A. Kovgan, Victor A. Chumachenko, Galina F. Mironova, Alexey N. Kortusov, Valentin N. Parmon, Gennady Sakovich
Summary: The study successfully converted Miscanthus sacchariflorus grown in Western Siberia into bioethanol and employed it in downstream ethylene production, achieving the expected yield. Pure bioethanol was produced through mechanical comminution, HNO3-pretreatment, hydrolysis, and fermentation, with the addition of supplements to increase yields and improve quality.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)