Article
Environmental Sciences
Jianhong Sun, Yuanfang Deng, Shaohua Li, Wenyong Xu, Guoquan Liu
Summary: This research investigated the enhanced efficiency of enzymatic hydrolysis of wheat straw through freeze-thaw pretreatment and analyzed the changes in physicochemical structure after pretreatment. The study found that cellulose and hemicellulose hydrolysis efficiency was improved, with hemicellulose being more susceptible to pretreatment. The highest hydrolysis efficiency for cellulose and hemicellulose was 57.06% and 70.66%, respectively, achieved at -80℃ for 24 hours and -10℃ for 24 hours, which were 2.23 and 3.13 times higher than the control levels, respectively. The study also observed cracks and holes in the pretreated samples, indicating structural changes. Fourier transform infrared spectroscopy and X-ray diffraction analysis revealed disruptions in the crystalline and amorphous regions and hydrogen bonds. This study provides a physical pretreatment method for enhancing the enzymatic hydrolysis efficiency of wheat straw.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Jiaxin Chen, Xin Wang, Biying Zhang, Yifan Yang, Yangbo Song, Fan Zhang, Bianfang Liu, Yuan Zhou, Yanglei Yi, Yuanyuan Shan, Xin Lu
Summary: The study investigated the optimization of subcritical water pretreatment and high solid hydrolysis for improving the conversion efficiency of bioethanol from wheat straw. Accumulation of lignin in solid residue after enzymatic hydrolysis was found to not affect the efficiency of bioethanol conversion, indicating a promising strategy for utilizing all components of lignocellulosic biomass.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biochemistry & Molecular Biology
Hui Chen, Jiangyun Mao, Bo Jiang, Wenjuan Wu, Yongcan Jin
Summary: This study utilized Na2CO3-O-2 pretreatment to enhance sugar recovery from waste wheat straw, achieving high delignification selectivity at relatively low temperature and TTA charge. The low pH value of the spent liquor after Na2CO3-O-2 pretreatment prevented the degradation of carbohydrates, resulting in a promising and cost-efficient biorefining process for the value-added utilization of WWS.
PROCESS BIOCHEMISTRY
(2021)
Article
Green & Sustainable Science & Technology
Emanuela Calcio Gaudino, Giorgio Grillo, Silvia Tabasso, Livio Stevanato, Giancarlo Cravotto, Kaisa Marjamaa, Ville Pihlajaniemi, Anu Koivula, Nina Aro, Jaana Uusitalo, Jarmo Ropponen, Lauri Kuutti, Pauliina Kivinen, Heimo Kanerva, Alexander Arshanitsa, Lilija Jashina, Vilhelmine Jurkjane, Anna Andersone, Thomas Dreyer, Gerhard Schories
Summary: This paper reports the dominant physical effects of ultrasound (US) pretreatment on improving delignification of wheat straw. The study demonstrates that ultrasound pretreatment can effectively increase the yield of soluble sugars by making the cellulose more susceptible to enzymatic hydrolysis. The results show that ultrasound pretreatment has advantages over steam explosion pretreatment in terms of environmental impact and cost-benefit analysis.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Biotechnology & Applied Microbiology
Zhe Ji, Yue Wu, Xinting Li, Yateng Wang, Zhe Ling, Yao Meng, Peng Lu, Fushan Chen
Summary: This study proposed a novel, low-cost, and environmentally friendly electrogenerated alkaline hydrogen peroxide (EAHP) pretreatment method that can simultaneously produce H2O2 and pretreat biomass. The enzymatic hydrolysis of cellulose and xylan in the pretreated lignocellulosic biomass was significantly enhanced.
BIOCHEMICAL ENGINEERING JOURNAL
(2022)
Article
Agricultural Engineering
Wei Tang, Xinxing Wu, Caoxing Huang, Zhe Ling, Chenhuan Lai, Qiang Yong
Summary: Pretreatment with FeCl3 and AlCl3 can significantly increase enzymatic hydrolysis efficiency of waste wheat straw, mainly by increasing xylan removal. Additionally, metallic chlorides pretreatment can also reduce the surface charge, hydrophobicity, and protein adsorption capacity of lignin from waste wheat straw.
BIORESOURCE TECHNOLOGY
(2021)
Article
Energy & Fuels
Xiao-le Liu, Zhen Fang, Xiao-fei Tian, Zheng-diao Miao
Summary: In this study, wheat straw was pretreated with a combination of ball milling (BM) and NaAlO2 particles (NaAlO2-BM) for efficient enzymatic hydrolysis. The results showed that NaAlO2-BM pretreatment significantly reduced particle size to tissue scale within 10 minutes, with 0.5 times lower energy consumption compared to BM pretreatment. The 20-minute NaAlO2-BM pretreatment achieved a glucose yield of 95.4% and the highest energy efficiency of 0.121 kg glucose/kWh, increasing by 1.1 times than BM pretreatment. Energy consumption was positively correlated with cellulose content and negatively correlated with particle size, cellulose crystallinity, and energy efficiency. The combination of BM and NaAlO2 particles proved to be a promising pretreatment approach for glucose production and improving energy efficiency during lignocellulosic hydrolysis.
Article
Biotechnology & Applied Microbiology
Hui Zhang, Junhui Wu
Summary: This study optimized the pretreatment and enzymatic hydrolysis of wheat straw using alkaline hydrogen peroxide (AHP). The results showed that optimal sugar yields and cellulose, hemicellulose removal were achieved under specific conditions of hydrogen peroxide concentration, temperature, time, enzyme loading, and biomass loading.
FERMENTATION-BASEL
(2023)
Article
Chemistry, Physical
Jinling Cai, Yu Wang, Jie Liu, Xinzhi Zhang, Fengmei Li
Summary: This study uses NaOH/urea and electrohydrolysis pretreatment to enhance the disruption of rice straw and the production of biofuels and chemicals. The pretreatment methods effectively disrupt the lignin structure and increase the cellulose crystallinity of rice straw. The hydrolysis of the pretreated rice straw produces a higher amount of reducing sugars and an increased yield of hydrogen.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Multidisciplinary Sciences
Zhiquan Wang, Suqing Wu, Chunzhen Fan, Xiangyong Zheng, Wei Zhang, Deyi Wu, Xinze Wang, Hainan Kong
Summary: The study found that the optimal NaOH pre-treatment conditions for enzymatic hydrolysis of wheat straw to enhance reducing sugar yield were NaOH concentration of 1.0%, solid content of 5.0%, and pre-treatment time of 60 minutes. Optimization of parameters such as solid content, enzyme loading, temperature, pH, and hydrolysis time during enzymatic hydrolysis can significantly increase the yield of reducing sugars.
SCIENTIFIC REPORTS
(2021)
Article
Energy & Fuels
Huanhuan Zhang, Yuanyuan Wang, Ruinan Yang, Zhenli Yan, Zigao Zhao, Chaojun Du, Yujie Chen, Wei Chen, Chun Chang
Summary: This study compared three mild pretreatment methods (formic acid pretreatment, sodium chlorite pretreatment, and alkaline hydrogen peroxide pretreatment) for wheat straw. The results showed that alkaline hydrogen peroxide pretreatment had better enzyme accessibility and higher enzymatic hydrolysis yield, and lignin can be separated from the liquid, improving the process's economics. Furthermore, response surface methodology was used to optimize the enzyme and additive conditions, achieving a maximum enzymatic hydrolysis yield of 94.15%. Fed-batch experiments with high-solid loadings achieved an enzymatic hydrolysis yield of 86.05%. These results contribute to improving the economic feasibility of wheat straw pretreatment and enzymatic hydrolysis process.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Agronomy
Dimitrios Ilanidis, Stefan Stagge, Leif J. Jonsson, Carlos Martin
Summary: Biochemical conversion of wheat straw was studied using hydrothermal pretreatment, enzymatic saccharification, and microbial fermentation. Different pretreatment conditions had significant effects on chemical composition, enzymatic digestibility, carbohydrate composition, inhibitory byproducts, furfural, and fermentability. Xylose concentration in pretreatment liquids increased with temperature up to 190 degrees C and then decreased.
Article
Energy & Fuels
Jia-Ming Guo, Yu-Tao Wang, Jing-Rong Cheng, Ming-Jun Zhu
Summary: In this study, a simple and effective SPB pretreatment method was proposed to enhance the enzymatic hydrolysis efficiency of rice straw. The pretreated rice straw showed high enzymatic hydrolysis efficiency and bioethanol production through simultaneous saccharification and co-fermentation.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Agricultural Engineering
Jie Zhao, Xuxiong Tao, Junfeng Li, Yushan Jia, Tao Shao
Summary: Silencing rice straw with dilute formic acid can reduce the cost of lignocellulosic pretreatment and improve fermentation dynamics and enzymatic hydrolysis. The use of 0.6% formic acid showed the best results in promoting hemicellulose removal and xylose production, leading to increased cellulose convertibility and glucose yield.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Xinyuan Zhang, Yiqin Wang, Jie Lu, Miaomiao Liu, Wanting Tan, Yi Cheng, Yehan Tao, Jian Du, Haisong Wang
Summary: This paper used five different types of biosurfactants to enhance the saccharification efficiency in the enzymatic hydrolysis process. The addition of sophorolipid increased the enzymatic hydrolysis efficiency by 30.65%, while the combination of sophorolipid and tea saponin further increased the efficiency to 99.56%. These biosurfactants acted synergistically to inhibit enzymatic inactivation and non-productive adsorption of lignin. This study proposes an effective method to improve enzymatic hydrolysis efficiency and reduce enzyme dosage by utilizing biosurfactants.
BIORESOURCE TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Yongcan Jin, Shuang Qi, Bo Jiang, Caoxing Huang
Summary: As the number of diabetes cases continues to rise, there is a growing need for effective management of diabetes and its effects. This study investigated the effects of sulfonated lignin with varying sulfonation degrees on the inhibition of alpha-amylase and alpha-glucosidase and the proliferation of intestinal beneficial bacteria in vitro. The results showed that sulfonated lignin could inhibit the activity of alpha-amylase and alpha-glucosidase and promote the growth of beneficial bacteria, suggesting its potential as a prebiotic for the prevention and treatment of type 2 diabetes mellitus.
Article
Chemistry, Applied
Wenyao Tong, Huaxing Fang, Kai Song, Xinyu Xie, Jing Wang, Yongcan Jin, Shufang Wu, Jinguang Hu, Qiulu Chu
Summary: In this study, the addition of 2-naphthol-7-sulfonate and sodium bisulfite in acid pretreatment was found to synergistically increase cellulose hydrolysis yield. Physicochemical characteristics of cellulose played significant roles in improving hydrolysis yield.
CARBOHYDRATE POLYMERS
(2023)
Article
Materials Science, Paper & Wood
Xinyu Zhang, Jing Tian, Peipei Wang, Tian Liu, Xiaomin Lu, Jiaqi Guo, Yongcan Jin, Huining Xiao, Junlong Song
Summary: The substitution degree (DS) of charged groups in a polymer has a significant impact on its adsorption behavior at the interface, which ultimately affects its applications and performance. This study investigates the adsorption behavior of quaternary celluloses (QCs) with different DS (0.23 and 0.51) on charged surfaces, particularly silica surface. The results reveal that QCs with lower DS can adsorb more onto the silica surface but with a softer conformation, while QCs with higher DS exhibit more negative ΔG, more negative ΔH, slightly lower positive ΔS, and less favorable ΔC-p, indicating the substantial influence of DS on the adsorption behavior and thermodynamics of QCs.
Article
Engineering, Environmental
Tingwei Zhang, Haiying Wei, Yongcan Jin, Huining Xiao
Summary: In this study, Sn-doped dendritic mesoporous silica nanoparticles (sn-xDMS) were synthesized and used as catalysts for the isomerization of glucose to HMF. The addition of Sn species onto the silica matrix increased the densities of Lewis acid sites and improved the catalytic performance. Furthermore, sulfonated sn-20DMS (sn-20DMS-SO3H) with enhanced Bronsted acidity exhibited higher catalytic selectivity towards HMF and showed good recyclability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Bo Jiang, Huan Jiao, Xinyu Guo, Gegu Chen, Jiaqi Guo, Wenjuan Wu, Yongcan Jin, Guozhong Cao, Zhiqiang Liang
Summary: The utilization of lignin in sustainable engineering, energy, and environment research is significant due to its abundance and low-cost features. Additive manufacturing of lignin into material parts with controlled structures and properties is recognized as a promising technology. This article provides an overview of lignin structure and presents the state-of-the-art of 3D printing of lignin and lignin-based composites, as well as highlights key challenges and future developments.
Review
Materials Science, Paper & Wood
Penghui Li, Chi Yang, Zhengwei Jiang, Yongcan Jin, Wenjuan Wu
Summary: This paper summarizes the advantages and disadvantages of traditional lignocellulose pretreatment methods and lists effective pretreatment parameters. Deep eutectic solvents (DES), as a green solvent system with excellent performance, are considered the most potential biomass pretreatment system. Based on this, the new trends and progress of DES in lignocellulose pretreatment are reviewed, focusing on the effects of different types of lignocellulosic raw materials, different components of DES, different reaction conditions, and the use of microwave ultrasound. The recyclability of DES solution system is also discussed. Finally, the application and future development direction of DES in lignocellulose pretreatment are proposed and prospected.
JOURNAL OF BIORESOURCES AND BIOPRODUCTS
(2023)
Article
Chemistry, Physical
Haiying Wei, Tongtong Wei, Licheng Li, Tingwei Zhang, Farzad Seidi, Yongcan Jin, Huining Xiao
Summary: Three types of Pt/CeO2 catalysts (rod-shaped (CeO2-R), cube-shaped (CeO2-C), and octahedral-shaped (CeO2-O)) with different support morphologies were synthesized and investigated for catalytic oxidation of C2H4 at low temperatures. The catalysts showed shape-dependent catalytic activity, with Pt/CeO2-O exhibiting the highest activity. This can be attributed to the different oxygen species activated by the catalysts in the C2H4 oxidation process. Additionally, the negative impact of water condensation on the catalyst can be eliminated by refreshing the catalyst with N2 purging. Overall, this work provides a novel catalytic system for efficient low-temperature ethylene oxidation and enhances our understanding of the catalytic mechanism.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Biochemistry & Molecular Biology
Dandan Wu, Yilin Wang, Shuang Qi, Yufeng Yuan, Jiaqi Guo, Gegu Chen, Mehraj Ahmad, Bo Jiang, Yongcan Jin
Summary: This study investigates the effects of low and high molecular weight alkali-oxygen lignins derived from rice straw on the growth and metabolism of maize seedlings. It finds that low molecular weight lignin stimulates the growth and metabolism of maize seedlings, while high molecular weight lignin has an inhibitory effect. The results suggest that methoxyl and carboxyl content of lignin may play a decisive role in seedling growth.
Review
Chemistry, Multidisciplinary
Chaofeng Zhang, Yongcan Jin, Feng Wang, Xiaojun Shen, Jinlan Cheng, Cheng Cai
Summary: This review summarizes the strategies and methods for lignin depolymerization into aromatic chemicals, including traditional methods such as pyrolysis, gasification, liquid-phase reforming, solvolysis, chemical oxidation, and newly developed processes like redox-neutral, biocatalysis, and combinatorial strategies. The mechanisms and key intermediates involved in these strategies are discussed. This review provides a comprehensive overview of lignin depolymerization research, offering useful suggestions for further advancements in this field.
Article
Biochemistry & Molecular Biology
Hui Chen, Bo Jiang, Chunyang Zou, Zhichao Lou, Junlong Song, Wenjuan Wu, Yongcan Jin
Summary: In this study, the interaction between lignin and cellulase was investigated using a carbohydrate-binding module (CBM) functionalized atomic force microscope tip. The results showed that sulfonated lignin (SL) had the strongest adhesion force to CBM, while other lignin samples had weaker adhesion forces. It was found that the primary mechanism by which SL promoted hydrolysis was by reducing the nonproductive adsorption of substrate lignin onto cellulase. The study also proposed a competitive adsorption mechanism to explain the effective promotion of enzymatic hydrolysis by SL in lignin-containing substrates.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Applied
Qingcheng Wang, Xinyu Zhang, Jing Tian, Chenyu Zheng, Mohammad Rizwan Khan, Jiaqi Guo, Wenyuan Zhu, Yongcan Jin, Huining Xiao, Junlong Song, Orlando J. Rojas
Summary: We have developed a strategy to break down cellulose microfibrils in plant fiber cell walls. By impregnation, mild oxidation, and ultrasonication, we obtained molecularly-sized cellulose structures (cellulose ribbons) that maintain hydrophilic and hydrophobic properties. These cellulose ribbons exhibit excellent hydrophilicity and flexibility, allowing them to form gel-like Pickering emulsions suitable for direct ink writing at ultra-low solids content.
CARBOHYDRATE POLYMERS
(2023)
Article
Agricultural Engineering
Zhenghong Wu, Xinyu Zhang, Shaomin Kang, Yena Liu, Rani Bushra, Jiaqi Guo, Wenyuan Zhu, Mohammad Rizwan Khan, Yongcan Jin, Junlong Song
Summary: In this study, an environmentally benign blocked lignin-based water-borne polyurethane emulsion was prepared to develop a hydrophobic, translucent, and biodegradable recycled fiber composite film. The film exhibited significantly improved mechanical properties, water stability, UV-blocking properties, and thermal stability compared to the control. The developed composite film has the potential to be used as a green packaging and construction material.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Biochemistry & Molecular Biology
Shaomin Kang, Zhenghong Wu, Yena Liu, Peipei Wang, Xinyu Zhang, Mehraj Ahmad, Mohammad Rizwan Khan, Wenyuan Zhu, Jiaqi Guo, Yongcan Jin, Huining Xiao, Junlong Song
Summary: Cationic starch is commonly used as a paper strength additive in papermaking wet end applications. The study investigates the adsorption behaviors and strength enhancement of quaternized amylose (QAM) and amylopectin (QAP) on fiber surfaces. The results reveal that the adsorption layer thickness and structure of QAM and QAP are influenced by starch morphology, degree of substitution, pH, and ionic strength. Furthermore, the degree of substitution of QAM positively correlates with paper strength, while the degree of substitution of QAP negatively correlates with paper strength. These findings provide insights into the impact of starch morphology on performance and offer practical guidelines for starch selection.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Correction
Materials Science, Paper & Wood
David W. Wei, Haiying Wei, Alec C. Gauthier, Junlong Song, Yongcan Jin, Huining Xiao
JOURNAL OF BIORESOURCES AND BIOPRODUCTS
(2023)
Article
Chemistry, Multidisciplinary
Jing Tian, Jingqian Chen, Peipei Wang, Jiaqi Guo, Wenyuan Zhu, Mohammad Rizwan Khan, Yongcan Jin, Junlong Song, Orlando J. J. Rojas
Summary: This study aims to overcome the challenges posed by the chemical complexity, heterogeneity, and broad molecular mass distribution of technical lignins in their high-value utilization. A practical strategy involving sequential dissolution in solvents of different polarities was used to fractionate kraft lignin. By self-assembling lignin through the anti-solvent method, controllable surface energy particles were generated. The customization of lignin (size and wetting characteristics), based on the relationship between particle morphogenesis and oil-in-water (O/W) stabilization capacity, enabled its broader utilization in multiphase systems.
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)
