Article
Agricultural Engineering
Gen Zou, Dapeng Bao, Ying Wang, Sichi Zhou, Meili Xiao, Zhanshan Yang, Yinmei Wang, Zhihua Zhou
Summary: Introducing product-activated cellulase genes significantly increases enzyme activity and saccharification efficiency. Improving thermostability of cellulases was achieved through mutants and enhanced enzyme activity. Introducing product-activated cellulase genes is an effective approach to alleviate product inhibition of cellulases.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Xindong Chen, Hailong Li, Shimiao Yao, Can Wang, Xuefang Chen, Haijun Guo, Lian Xiong, Hairong Zhang, Xinde Chen
Summary: This study investigated the impact of cellulose ultrastructure on the inhibition of lignin during enzymatic hydrolysis. It also explored the effects of changing cellulose ultrastructure on cellulose conversion. The results showed that cellulose ultrastructure significantly influenced the degree of lignin inhibition.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Thermodynamics
Samreen Hameed, Adhirath S. Wagh, Abhishek Sharma, Vishnu Pareek, Yun Yu, Jyeshtharaj B. Joshi
Summary: This study investigates the effect of salt on cellulose pyrolysis behavior using the chemical percolation devolatilization (CPD) model. The experimental results show that salt has a pronounced effect on the primary pyrolysis reactions of cellulose, accelerating its decomposition and favoring the formation of gases and char.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Review
Biotechnology & Applied Microbiology
Guangxu Yang, Xiaolin Luo, Li Shuai
Summary: Cellulose hydrolysis is an important process for producing biobased fuels and chemicals, with solid acid catalysts showing potential advantages over conventional mineral acids. However, challenges such as slow mass transfer and lack of ideal binding sites on the catalyst surface still need to be addressed for efficient cellulose hydrolysis.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Review
Biochemistry & Molecular Biology
K. Narayanan Rajnish, Melvin S. Samuel, Ashwini J. John, Saptashwa Datta, Narendhar Chandrasekar, Ramachandran Balaji, Sujin Jose, Ethiraj Selvarajan
Summary: Cellulose as a raw material for biofuel production requires breakdown into intermediate sugars, and immobilizing cellulase enzymes on nanomaterials has been proven to significantly enhance efficiency and provide an economic solution for the processing of cellulose.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Polymer Science
Feitian Bai, Tengteng Dong, Zheng Zhou, Wei Chen, Chenchen Cai, Xusheng Li
Summary: This study demonstrates a strategy of intergranular swelling, hydrolysis, and oxidation to overcome the biological barriers in cellulose. The pretreatment of bagasse significantly removes lignin and cellulose, increases the specific surface area and pore size, and improves the glucose recovery in enzymolysis.
Article
Agricultural Engineering
Zhiwei Wang, Haoran Tang, Gongwei Liu, Hanxuan Gong, Yangguang Li, Yulin Chen, Yuxin Yang
Summary: Low-value agricultural by-products can be converted into high-value biological products through fermentation or enzymatic hydrolysis. This study investigated the solid-state fermentation of millet bran using a cellulase preparation and compound probiotics producing cellulase (CPPC). The results showed that both factors effectively reduced the crude fiber content and increased the contents of beneficial metabolites and microorganisms. CPPC had higher effectiveness in reducing anti-nutrient factors and increasing anti-inflammatory metabolites. The correlation analysis revealed a synergistic growth between Lactiplantibacillus and Issatchenkia during fermentation. These findings provide a theoretical reference for the efficient utilization of agricultural by-products.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Donglin Xin, Benedikt M. Blossom, Xiaoyun Lu, Claus Felby
Summary: This study evaluated the effects of ascorbic acid and gallic acid on cellulase hydrolytic action and found that ascorbic acid increased the hydrolysis of cellulose by cellulases, while gallic acid had no effect. The effect of ascorbic acid differed for different types of cellulase enzymes.
BIORESOURCE TECHNOLOGY
(2022)
Article
Chemistry, Applied
Guodong Liu, Faxing Zou, Wei He, Junfei Li, Yajie Xie, Mengjiao Ma, Yudong Zheng
Summary: In this study, a new controlled release structure combining the immobilization and release of cellulase was used for the first time to achieve the controllable degradation of bacterial cellulose (BC). The immobilized enzyme had higher stability and was gradually released in the simulated physiological environment, and its load effectively controlled the hydrolysis rate of BC. The BC-based membrane prepared using this method retained the favorable physicochemical properties of the original BC and showed promising application prospects in drug control release or tissue repair.
CARBOHYDRATE POLYMERS
(2023)
Article
Chemistry, Applied
Evandro A. Araujo, Artur Hermano Sampaio Dias, Marco A. S. Kadowaki, Vasily Piyadov, Vanessa O. A. Pellegrini, Mateus B. Urio, Luiz P. Ramos, Munir S. Skaf, Igor Polikarpov
Summary: Processive cellulases like BlCel48B from Bacillus licheniformis are efficient molecular engines that break down cellulose, with their enzymatic properties impacted by cellulose size and surface morphology. Structural analysis and molecular dynamics reveal the critical role of co-evolved residues in the active site in stabilizing ligands in the catalytic tunnel, providing mechanistic insights into activity and substrate binding of BlCel48B.
CARBOHYDRATE POLYMERS
(2021)
Article
Agricultural Engineering
Manish Paul, Sonali Mohapatra, Pradeep Kumar Das Mohapatra, Hrudayanath Thatoi
Summary: Efficient degradation of lignocellulosic biomass requires adjustments to the surface charge of cellulases, maintenance of their secondary structure, and enhancement of catalytic activity, with the use of computational design for improved efficiency. Genetic engineering for tailored genes can increase cellulase production efficiency, and improving recovery rates can lead to larger scale enzyme production.
BIORESOURCE TECHNOLOGY
(2021)
Article
Polymer Science
Avinash Pradip Manian, Barbara Paul, Helene Lanter, Thomas Bechtold, Tung Pham
Summary: The risks of rockfall and land sliding can be controlled through the use of high-tensile steel nets and meshes, alongside effective greening techniques. A hybrid structure consisting of a nonwoven cellulose fibre web and a steel mesh was tested under outdoor conditions for 61 weeks, demonstrating its potential to contribute to greening barren and stony land.
Article
Agricultural Engineering
Sunjia Ding, Xiaoqing Liu, Nina Hakulinen, Mohammad J. Taherzadeh, Yaru Wang, Yuan Wang, Xing Qin, Xiaolu Wang, Bin Yao, Huiying Luo, Tao Tu
Summary: This study revealed the mechanism of action of the expansin TlEXLX1 in cellulose utilization, as well as its synergy with commercial cellulases. This is of great significance for improving the efficiency of cellulosic biomass degradation.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Peiqian Zhang, Mei Cui, Renliang Huang, Wei Qi, Wim Thielemans, Zhimin He, Rongxin Su
Summary: This study investigated the mechanism of expansins and endoglucanase on cellulose using real-time monitoring technology. The addition of zinc ions was found to increase the adsorption rate and hydrolysis rate of both expansins and endoglucanase.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Kyoungseon Min, Yong Hwan Kim, Jiye Kim, Yunje Kim, Gyeongtaek Gong, Youngsoon Um
Summary: This study revealed that MnP from Phanerochaete chrysosporium can directly decompose cellulosic components and boost cellulase activity by evolving the MnIII-acetate complex as a strong oxidant in acetate buffer. The proposed catalytic mechanism and demonstration of previously unknown fungal MnP activity in cellulose-decomposition provide insights for further investigation of the versatility of lignin-degrading biocatalysts.
BIORESOURCE TECHNOLOGY
(2022)
Article
Energy & Fuels
Emmanuel Galiwango, Mukhtar Ismail, Muhammad Sajjad Ahmad, Sulaiman Al-Zuhair
Summary: The effect of exposure to thermo-switchable solvent (TSS) on cell wall disruption of Chlorella sp. microalgae was investigated. The study analyzed the combustion and kinetic behaviors of TSS-treated microalgae cells compared to undisrupted cells, and found a decrease in crystallinity and activation energy in the TSS-treated samples.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Biochemistry & Molecular Biology
Saleha Al-Mardeai, Emad Elnajjar, Raed Hashaikeh, Boguslaw Kruczek, Bart Van der Bruggen, Sulaiman Al-Zuhair
Summary: Hydrolysis is essential in converting lignocellulose to bioethanol, and using enzymes for hydrolysis is a more environmentally friendly approach. Overcoming product inhibition and improving enzyme reusability are crucial for the economic feasibility of the process. This study compared the effectiveness of flat-sheet and radial-flow MBR designs in hydrolyzing date seeds, and found that the tubular radial-flow MBR had superior performance. The promising results suggest that the novel tubular MBR could contribute to a more economic lignocellulose-to-bioethanol process.
Article
Engineering, Environmental
Labeeb Ali, Hussein A.Mousa, Mohammad Al-Harahsheh, Sulaiman Al-Zuhair, Basim Abu-Jdayil, Mohamed Al-Marzouqi, Mohammednoor Altarawneh
Summary: This study examines the potential of using alumina as a debromination agent in PCBs, demonstrating its effectiveness through experimental and theoretical frameworks. Various characterization techniques confirm the transformation of alumina into aluminum bromides and oxy-bromides in co-pyrolysis with non-metallic fractions of PCBs, highlighting its capacity as a HBr fixation agent during e-waste thermal treatment.
Article
Chemistry, Multidisciplinary
Yuhan Li, Hao Zhou, Lingmei Dai, Dehua Liu, Sulaiman Al-Zuhair, Wei Du
Summary: Metal-organic frameworks (MOFs) have shown promise in enzyme immobilization due to their designability and structural diversity, with magnetic modification being an effective approach to enhance reusability. In this study, m-M-ZIF-8 was successfully used to immobilize Thermomyces lanuginosus lipase (TLL), resulting in significantly increased enzyme loading and specific enzyme activity.
Article
Energy & Fuels
Reem Al-Mansouri, Wei Du, Sulaiman Al-Zuhair
Summary: Lipase has been successfully encapsulated into ZIF-8 for biodiesel production. The encapsulated lipase showed higher stability compared to the adsorbed one. The highest yield was achieved at specific conditions, but increased methanol ratio and temperature resulted in decreased yield. Diffusion of substrate inside the crystal was limited, affecting the activity of encapsulated lipase.
Article
Green & Sustainable Science & Technology
Aysha Al Qayoudi, Sulaiman Al-Zuhair
Summary: Immobilization of enzymes has been proposed as a method to simplify their separation and reuse, but it also leads to additional diffusion limitations that fully utilize enzyme activity. This study focuses on the immobilization of lipase on zeolite and its application in oil hydrolysis. The Sips model is identified as the best description for the adsorption process, and the zeolite's adsorption capacity is determined to be 62.6 mg/g. The experimental results of enzymatic hydrolysis of olive oil using the immobilized lipase show that both surface reaction and diffusion have significant effects.
Article
Chemistry, Multidisciplinary
Muhammad Asad Javed, Abdul Mannan Zafar, Sulaiman Al-Zuhair, Amro El Badawy, Ashraf Aly Hassan
Summary: Based on experimental data, this study demonstrated that glucose supplementation is the most appropriate carbon substrate for higher H2 yield and substantial organics removal in co-culture.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Biotechnology & Applied Microbiology
Eyad Sowan, Hanifa Taher, Mohammad Sayem Mozumder, Sulaiman Al-Zuhair
Summary: ZIF-8 was used as a support to enhance the stability of immobilized lipase, ensuring successful attachment and encapsulation. The attachment of the enzyme did not affect the crystal structure of ZIF-8. The encapsulated lipase@ZIF-8 system showed higher stability and retained 32% of its initial activity after five cycles.
ENZYME AND MICROBIAL TECHNOLOGY
(2023)
Article
Energy & Fuels
Saleha Al-Mardeai, Emad Elnajjar, Raed Hashaikeh, Boguslaw Kruczek, Bart Van der Bruggen, Sulaiman Al-Zuhair
Summary: A tubular membrane bioreactor was used to enhance the enzymatic hydrolysis of palm date seed waste biomass. The bioreactor effectively handled high solid loadings and simultaneously removed products. The effects of substrate concentrations and water flowrates on total reducing sugar production were examined, and a dynamic model was developed to describe the bioreactor and predict its performance. The novel membrane bioreactor and developed model have potential for industrial bioethanol production from lignocellulosic biomass.
Article
Engineering, Chemical
Eyad Sowan, Mohammad Sayem Mozumder, Hanifa Taher, Sulaiman Al-Zuhair
Summary: Although there is increasing interest in biodiesel production from microalgae, the high cost of multistage production processes is still a barrier to its commercialization. This review thoroughly discusses conventional methods of biodiesel production from microalgae and compares them to state-of-the-art technologies, with particular emphasis on the use of biocatalysts as alternative catalysts. Challenges and innovative solutions in the biocatalytic process are also presented, with a focus on in-situ biodiesel production processes that show promise for industrial application.
CHEMBIOENG REVIEWS
(2023)
Article
Biotechnology & Applied Microbiology
Babatunde A. Ogunbadejo, Sulaiman Al-Zuhair
Summary: This study investigates the superiority of a metal organic framework, MIL-101 (Cr), as an immobilization support for Cyclodextrin glycosyltransferase (CGTase) over conventional support, zeolite Y. The results show that MIL-101 has higher adsorption capacity and improved catalytic activity, indicating its suitability as a support material for CGTase.
BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Saleha Al-Mardeai, Meera Aldhaheri, Aysha Al Hashmi, Maryam Qassem, Sulaiman Al-Zuhair
Summary: This study explored the utilization of date seeds for producing biodiesel, bioethanol, and bio-oil, and found that oil extraction as a pretreatment method proved to be effective in enhancing enzymatic hydrolysis. The optimized process significantly increased the sugar and bio-oil yields, providing a promising approach for fully utilizing agricultural waste.
CLEANER ENGINEERING AND TECHNOLOGY
(2023)
Article
Biochemical Research Methods
Babatunde A. Ogunbadejo, Khawla A. Aljahoushi, Ahmed Alzamly, Yaser E. Greish, Sulaiman Al-Zuhair
Summary: This study investigated the effects of support's surface properties on the immobilization of CGTase enzyme. It was found that the more hydrophilic Ca-TMA support exhibited better activity and reusability compared to the more hydrophobic GNP support. Analysis of the enzyme's secondary structures revealed that more beta-sheets and alpha-helix favored the production of more beta-CD. These findings provide insights for developing improved CGTase-based biocatalysts.
BIOTECHNOLOGY JOURNAL
(2023)
Article
Engineering, Environmental
Muhammad Asad Javed, Abdul Mannan Zafar, Ashraf Aly Hassan, Asad A. Zaidi, Muhammad Farooq, Amro El Badawy, Tryg Lundquist, Mohamad Mostafa Ahmed Mohamed, Sulaiman Al-Zuhair
Summary: One of the main challenges in hydrogen production via biophotolysis is the sensitivity of the hydrogenase enzyme to oxygen. This study reviews methods to enhance H-2 production by regulating oxygen concentration and utilizing antioxidants, with techniques such as co-culturing with bacteria and using antioxidants/nanoparticles appearing most significant for environmental sustainability and green energy production.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Reem Shomal, Wei Du, Sulaiman Al-Zuhair
Summary: The study found that ZIF-8 and ZIF-67 exhibited better catalytic activity for biodiesel production, while HKUST-1 showed better reusability due to stronger chemical adoption. Additionally, diffusion-reaction kinetics of biodiesel production using adsorbed lipase on ZIF-8 were analyzed. The investigation provided insight into adsorption pathways, probable mechanisms involved, and a better understanding of their application in biodiesel production.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(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)