Article
Agricultural Engineering
Hongqiong Zhang, Rui Zhang, Yunong Song, Xinying Miu, Quanguo Zhang, Jingbo Qu, Yong Sun
Summary: This study investigated the effects of using urea combined with steam explosion on the enzymatic hydrolysis and ethanol production of corn stover. The results showed that optimal conditions for ethanol production were 4.87% urea addition and 1.22 MPa steam pressure. The addition of urea and steam explosion significantly increased the reducing sugar yield and degradation rates of cellulose, hemicellulose, and lignin.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Wenjie Sui, Xiaoqian Liu, Hao Sun, Chao Li, Ashak Mahmud Parvez, Guanhua Wang
Summary: This study introduces a novel combined pretreatment approach involving steam explosion and GVL/water delignification to improve the enzymatic saccharification efficiency of corn stalk. The method effectively removes lignin and enhances glucan content in the solid material, leading to significantly increased glucose concentration during high-solid loading enzymatic hydrolysis with relatively low cellulase addition. The combined pretreatment shows promise for green lignocellulosic biorefinery by fractionating corn stalk and producing a glucan-enriched solid with enhanced enzymatic digestibility.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Agricultural Engineering
Xueli Chen, Antonio C. Freitas dos Santos, Diana M. Ramirez Gutierrez, Peiyuan Song, John E. Aston, David N. Thompson, James H. Dooley, Michael R. Ladisch, Nathan S. Mosier
Summary: This study reports the role of high moisture pelleting in improving the enzymatic digestibility of corn stover for ethanol production. Pelleting increases the glucan conversion from 8.2% to 15.5% at 5% solid loading. The composition analysis shows that loose and pelleted corn stover have similar nondissolvable compositions, but their extractives are different. The improved digestibility may be attributed to decreased particle size, improved substrate accessibility, and hydrolysis of cross-linking structures induced by pelleting.
BIORESOURCE TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Zhimin Wang, Yuan Huang, Fengjiao Zhang, Hui Xie, Guangce Jiang, Dongcan Lv, Hongsen Zhang, Su Shiung Lam, Andong Song
Summary: This research demonstrates that thioglycolic acid (TA) significantly accelerates Fenton pretreatment (FP) of corn stover (CS) and improves enzymatic hydrolysis of cellulose and xylan. TA-assisted FP greatly improves the removal of hemicellulose and lignin, resulting in an increase in pore volume, pore size, and cellulose exposure, thus promoting the enzymatic saccharification of CS.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Agricultural Engineering
Kaili Ding, Hao Lin, Luoyang Liu, Xiwen Jia, Hui Zhang, Yufeng Tan, Xueyan Liang, Yinghui He, Dong Liu, Lujia Han, Weihua Xiao
Summary: In this study, corn stover was analyzed and divided into different parts. It was found that the husk obtained the highest monosaccharide concentration after ball milling pretreatment, due to its improved structural properties. Ball milling pretreatment enhanced the crystallinity, xylan content, and water retention value, leading to increased sugar yield.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Agronomy
Haiyan Chen, Xuezhi Li, Shaoyang Yu, Yuqi Qin, Yinbo Qu, Jian Zhao
Summary: The study demonstrates that using potassium permanganate assisted organosolv pretreatment of corn stover significantly increases carbohydrate yields, improves enzymatic hydrolysis efficiency, and optimizes process conditions. The differences in morphological features, fiber surface chemical compositions, crystallinity degree, and thermostability of pretreated corn stover with and without KMnO4 in ethanol-water pretreatment process are characterized to explore the underlying reasons for the enhancement.
GLOBAL CHANGE BIOLOGY BIOENERGY
(2021)
Article
Materials Science, Paper & Wood
Benkun Qi, Zhenwu Wang, Jianquan Luo, Yinhua Wan
Summary: In this study, acid and alkali catalyzed choline chloride pretreatment of corn stover showed different effects on lignin and xylan removal, with acidified ChCl being more effective in delignification and alkalified ChCl better at removing xylan. However, alkalified ChCl pretreatment resulted in higher glucose yield compared to acidified ChCl pretreatment. The correlation studies indicated that high delignification and larger cellulose crystallite size were key factors contributing to high enzymatic hydrolysis efficiency. Additionally, analysis of extracted lignin showed changes in molecular weight and phenolic hydroxyl groups based on different pretreatment methods.
Article
Agricultural Engineering
Dechao Nie, Lingyun Yao, Xiaokai Xu, Zhuo Zhang, Yanling Li
Summary: The combination of steam explosion processing and ensilage storage effectively enhances the degradation profile and accessibility of cellulose in corn stover, leading to increased rumen effective degradability and degradation rate. This method proves to be a feasible way to improve the utilization efficiency of corn stover.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agronomy
Fernando Shintate Galindo, Jeffrey S. Strock, Paulo Humberto Pagliari
Summary: The study found that residue management significantly affected the response of corn to nitrogen and phosphate fertilizers, with higher yields and increased need for nutrients when residue was removed. When residue was incorporated, nutrients were returned, leading to better yields.
Article
Biotechnology & Applied Microbiology
Menglei Xia, Di Wang, Yiming Xia, Haijiao Shi, Zhongyu Tian, Yu Zheng, Min Wang
Summary: This study applied ORP control to enhance the fermentability of SECS for butanol production, resulting in increased total solvent and butanol yield. The mechanism involves changes in key metabolic pathways and enzyme activities, leading to improved cell growth and butanol production in Clostridium strains.
MICROBIAL CELL FACTORIES
(2022)
Article
Agricultural Engineering
Hongzhen Luo, Lei Gao, Fang Xie, Yongjiang Shi, Tairan Zhou, Yufen Guo, Rongling Yang, Muhammad Bilal
Summary: In this study, the effects of glycerol organosolv pretreatment (GOP) on the main chemical composition of corn stover were investigated. It was found that the L-cysteine-assisted GOP process could enhance the yields of glucose and xylose. The study also elucidated the intrinsic mechanisms of the proposed pretreatment and conducted a techno-economic analysis.
BIORESOURCE TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Wan Sun, Xuezhi Li, Jian Zhao, Yuqi Qin
Summary: This study focused on the fractionation of corn stover using different pretreatment strategies to enhance enzymatic digestibility and cellulosic ethanol production. The combined dilute acid and alkaline sodium sulfite pretreatment effectively separated cellulose, hemicellulose, and lignin from corn stover. The results provided valuable insights for the biorefinery of corn stover.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Food Science & Technology
Estefania J. Carrera, Maria Jesus Cejudo-Bastante, Nelson Hurtado, Francisco J. Heredia, M. Lourdes Gonzalez-Miret
Summary: Colombian purple corn Zea mays L. by-products were chemically characterized after purification and fractionation. Cob and leaves showed a more complete flavonoid profile with higher content of anthocyanins and flavonols compared to grains, resulting in the highest reducing power and radical scavenging activity. The antioxidant fractions corresponded to higher molecular weight compounds. This study provides the first chemical and antioxidant characterization of purple corn by-products, as well as pure fractions of Zea mays L. for various industries.
FOOD RESEARCH INTERNATIONAL
(2023)
Article
Materials Science, Paper & Wood
Marlon Gualberto Ganter de Moura, Thiago Alessandre da Silva, Arion Zandona Filho, Marcos Lucio Corazza, Luiz Pereira Ramos
Summary: In this study, statistical design and mathematical modeling were used to investigate the fed-batch enzymatic hydrolysis process of steam-exploded sugarcane bagasse. A Box-Behnken experimental design was used to evaluate the effects of enzyme loading, stirring speed, and substrate total solids on glucose release after 48 hours of hydrolysis. A simplified kinetic model was used to fit the experimental data and predict the effects of substrate and enzyme intermittent feedings in fed-batch hydrolysis experiments. The proposed fed-batch procedure was found to significantly increase GlcEq productivity compared to batch experiments at 20 wt%.
Article
Biotechnology & Applied Microbiology
Yanwen Wu, Haipeng Guo, Md Shafiqur Rahman, Xuantong Chen, Jinchi Zhang, Yun Liu, Wensheng Qin
Summary: The study showed that the Bacillus sp. P3 strain significantly enhanced enzymatic saccharification in corn stover, with an improved hemicellulose removal rate through the production of alkaline-resistant xylanase and other enzymes. After pretreatment with the P3 strain, the glucan content in corn stover increased by 51% and the yield of reducing sugar released during enzymatic hydrolysis was increased by 56% compared to untreated corn stover. The use of the P3 strain could be a promising approach for enhancing the enzymatic hydrolysis process in industrial bioenergy productions.
BIORESOURCES AND BIOPROCESSING
(2021)
Article
Polymer Science
Hong-Qiang Li, Qiang Shao, Hao Luo, Jian Xu
JOURNAL OF APPLIED POLYMER SCIENCE
(2016)
Review
Green & Sustainable Science & Technology
LiFang Liu, HongQiang Li, Andrea Lazzaretto, Giovanni Manente, ChunYi Tong, QiBin Liu, NianPing Li
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2017)
Article
Agricultural Engineering
Yue-Hai Wang, Jie Zhang, Yong-Shui Qu, Hong-Qiang Li
BIORESOURCE TECHNOLOGY
(2018)
Article
Engineering, Electrical & Electronic
Junjie Li, Yu Xie, Zhengrong Ouyang, Hongqiang Li, Qiumin Meng, Lei Shi, Xin Ai, Ming Fang, Xuheng Chen, Dazhi Kuang
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2018)
Article
Agricultural Engineering
Jie Zhang, Yue-Hai Wang, Yong-Shui Qu, Quan-Yuan Wei, Hong-Qiang Li
INDUSTRIAL CROPS AND PRODUCTS
(2018)
Article
Environmental Sciences
Rongjiang Yao, Jinsong Yang, Xiangping Wang, Wenping Xie, Fule Zheng, Hongqiang Li, Cong Tang, Hai Zhu
Summary: The study found that consecutive nitrogen fertilization significantly increased key soil chemical properties, such as organic carbon, total nitrogen, and available nitrogen in salt-affected soil. This led to the formation of a more suitable bacterial microhabitat and increased richness and diversity of bacterial communities. The results highlight the positive impact of nitrogen fertilization on soil biochemical characteristics and the microbial ecosystem in coastal agroecosystems.
LAND DEGRADATION & DEVELOPMENT
(2021)
Article
Agronomy
Rongjiang Yao, Jingsong Yang, Wei Zhu, Hongqiang Li, Chunyan Yin, Yupeng Jing, Xiangping Wang, Wenping Xie, Xing Zhang
Summary: This study investigated the impact of different agricultural practices on soil fungal communities using a four-year field experiment. The results showed that crop cultivation had the largest contribution to fungal richness and diversity, while nitrogen fertilization enriched different types of fungi.
Article
Plant Sciences
Rongjiang Yao, Hongqiang Li, Jingsong Yang, Chunyan Yin, Xiangping Wang, Wenping Xie, Xing Zhang
Summary: The study revealed significant impacts of potassium humate and biochar additions, as well as soil salinity, on nitrogen transformation processes, prolonging the duration of hydrolysis and nitrification and negatively affecting net rates and kinetic parameters. Additionally, the additions exacerbated the inhibitory effects of soil salinity on hydrolysis and nitrification processes.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2021)
Article
Agronomy
Rongjiang Yao, Hongqiang Li, Wei Zhu, Jingsong Yang, Xiangping Wang, Chunyan Yin, Yupeng Jing, Qiang Chen, Wenping Xie
Summary: Improper fertilization or excessive nitrogen input can lead to environmental problems and soil health issues, especially in saline agroecosystems. This study found that adding biochar (BC) and potassium humate (PH) to salt-affected soil can improve the migration and redistribution of soil water, salt, and mineral nitrogen. BC enhances soil macropores and infiltration rates, while PH increases water-holding capacity. Additionally, BC and PH additives can alter the transport and redistribution patterns of urea-N in soil, delaying the rise of ammonium nitrogen (NH4+-N) and nitrate nitrogen (NO3--N) contents.
IRRIGATION SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Lifei Lian, Yubing Liu, Xianfeng Yi, Hanbin Hu, Xiang Chen, Hongqiang Li, Wei Chen, Anming Zheng, Yu-Fei Song
Summary: Solid acid catalysts are widely used in the production of high-value added and industrially important chemicals. This study reports the rare covalent tethering of sulfonic acid functionalized organosilicon modified polyoxometalates (POMs) as solid acid catalysts. The relationship between POM structures, acid strength, and electron density was systematically investigated. Compound 2 showed excellent catalytic performance and opened a new pathway for the design and fabrication of novel solid acid catalysts.
SCIENCE CHINA-CHEMISTRY
(2022)
Article
Microbiology
Rong-Jiang Yao, Hong-Qiang Li, Jing-Song Yang, Xiang-Ping Wang, Wen-Ping Xie, Xing Zhang
Summary: The addition of biochar inhibits nitrification in saline irrigation-silting soil by altering the community structures of AOB and AOA and reducing the relative abundance of dominant functional ammonia-oxidizers, such as Nitrosospira, Nitrosomonas, and Nitrosopumilus.
Article
Soil Science
Rongjiang Yao, Hongqiang Li, Jingsong Yang, Wei Zhu, Chunyan Yin, Xiangping Wang, Wenping Xie, Xing Zhang
Summary: Biochar and N fertilizer addition inhibited autotrophic nitrification mainly by greatly reducing the abundance of amoA-AOB gene, which was adaptive to the changing soil microhabitat traits induced by biochar application and N fertilization. The AOB dominated the autotrophic nitrification process with the nitrification rate showing a higher positive correlation with the abundance of the amoA-AOB gene than with that of the amoA-AOA gene.
APPLIED SOIL ECOLOGY
(2022)
Article
Plant Sciences
Rongjiang Yao, Hongqiang Li, Jingsong Yang, Xiangping Wang, Wenping Xie, Xing Zhang
Summary: This study aimed to investigate the connection between soil attributes and nitrification in salt-affected cultivation soils. The results showed that soil CEC, pH, and Na+ had significant effects on nitrification, and AMO activity played a key role in this process.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2022)
Article
Soil Science
Rongjiang Yao, Qiancheng Gao, Yuxing Liu, Hongqiang Li, Jingsong Yang, Yanchao Bai, Hai Zhu, Xiangping Wang, Wenping Xie, Xing Zhang
Summary: This study concluded that deep vertical rotary tillage (DVRT) can mitigate soil salinization hazards by improving soil porosity and permeability, promoting salt leaching, and enhancing soil quality and organic carbon content. Additionally, DVRT can also alter the structure and composition of soil microbial communities.
SOIL & TILLAGE RESEARCH
(2023)
Article
Thermodynamics
Qiumin Meng, Zhengrong Ouyang, Shuai Zhang, Junjie Li, Hongqiang Li, Lei Shi, Ming Fang
CASE STUDIES IN THERMAL ENGINEERING
(2019)
Article
Agricultural Engineering
G. Grasa, I. Martinez, R. Murillo
Summary: Gasification kinetics of six chars from residual origin were studied under relatively low temperature, low CO2, and high H2O partial pressures. The Random Pore Model (RPM) showed the best fit to experimental results, but the selection of the reaction model depended on the ash composition, specifically the presence of alkali and alkaline earth metals. Chars with ash content higher than 30% wt. were modeled with the RPM model, while chars with the highest K/Si ratio required modified versions of the RPM to accurately predict reaction rates. Textural properties played a key role in determining reaction parameters, such as the pre-exponential factor and activation energy, for chars with similar ash content and composition.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
V. Godvin Sharmila, Surya Prakash Shanmugavel, J. Rajesh Banu
Summary: Proper treatment and disposal of biomass waste is crucial to prevent environmental deposition and its negative impacts. Biofuel has emerged as a potential alternative to fossil fuels, reducing carbon emissions and meeting global energy demands. This review examines different biomass waste conversion techniques and explores the production of biofuels with zero carbon emissions. Research on anaerobic treatment, metabolic engineering, and artificial intelligence has been conducted to enhance biofuel production efficiency.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
Selvakumar Periyasamy, Adane Asefa Adego, P. Senthil Kumar, G. G. Desta, T. Zelalem, V. Karthik, J. Beula Isabel, Mani Jayakumar, Venkatesa Prabhu Sundramurthy, Gayathri Rangasamy
Summary: Valorizing agricultural waste into valuable products is crucial for environmental protection and bioeconomy advancement. Preprocessing of agricultural waste is a critical step to convert free carbohydrate molecules for final conversion, and factors such as biomass nature, feed loading, pH, temperature, and time influence the process. This review provides comprehensive information on agricultural waste availability, preprocessing techniques, and factors influencing performance.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Aqueel Ahmad, Ashok Kumar Yadav, Achhaibar Singh, Dinesh Kumar Singh
Summary: The study focuses on predicting and optimizing the yield of biogas production in an anaerobic digester using co-digestion. Experimental data was used to develop a machine learning-based prognostic model, and the Response Surface Methodology (RSM) was employed to optimize the parameters. The results demonstrate that RSM coupled with machine learning is an effective technique for modeling, predicting, and optimizing biogas production yield.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Yijing Zhong, Wenxiang Zhai, Xinli Wei
Summary: This paper studies the thermal stability and decomposition of cork materials with and without silica aerogel filler. The results show that the decomposition is inhibited and the pyrolysis is significantly reduced with the addition of silica aerogel. This finding suggests that silica aerogel-infused cork may be a promising raw material for biofuel production with reduced environmental pollution.
BIOMASS & BIOENERGY
(2024)