Article
Agricultural Engineering
Wei Tang, Zhengyu Tang, Haojie Qian, Caoxing Huang, Yu-Cai He
Summary: Exploiting bamboo shoot shells (BSS) as feedstocks for biorefining is crucial for improving the bioavailability of bamboo shoots. This study used the traditional dilute sulfuric acid pretreatment (DAP) method to treat BSS and simultaneously prepared a solid-acid-catalyst using BSS as a carrier. Biocatalysis and enzymatic hydrolysis were then performed to efficiently convert the carbohydrates of the pretreated BSS. The results showed that using 0.1 g/L H2SO4 during DAP achieved optimal furfural conversion of BSS, reaching a maximum of 41%. The enzymatic hydrolysis efficiency of the pretreated BSS also reached a maximum of 97%. This increase in efficiency was attributed to improved accessibility, cellulosic crystal size, and reduced lignin surface area in BSS. Overall, DAP technology enabled efficient utilization and bioconversion of BSS carbohydrates.
BIORESOURCE TECHNOLOGY
(2023)
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
Yayue Zheng, Xiaoxue Zhao, Wenqian Lin, Qiang Yong, Caoxing Huang
Summary: This study investigated the effect of sulfuric acid-based phenoxyethanol pretreatment on the enzymatic digestibility of bamboo by examining the changes in lignin/xylan content and intercellular structures. The highest removal of lignin and xylan, achieved by pretreatment with a phenoxyethanol-acid ratio of 4:1 at 120 degrees C, resulted in pretreated bamboo with an enzymatic digestibility of 79.25%. Micro-computed tomography revealed that the macrostructure of bamboo cell wall was destroyed, exposing the macrofibers. Fluorescence microscopy showed the removal of lignin from the intercellular complex layer and a more severe destruction of the hemicellulose main chain during pretreatment. The structures of dissolved lignin in the pretreatment hydrolysate varied with the phenoxyethanol-acid ratio used.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Engineering, Environmental
Yin Liu, Huiting Xue, Caiyun Miao, Guanhua Li
Summary: Korshinsk peashrub (KP) is a drought-tolerant perennial energy shrub. Aqueous ammonia (AA) pretreatment can enhance enzymatic hydrolysis of KP, remove non-cellulosic polymers, and increase reducing sugar yield.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Agricultural Engineering
Caoxing Huang, Xiaoxue Zhao, Yayue Zheng, Wenqian Lin, Chenhuan Lai, Qiang Yong, Arthur J. Ragauskas, Xianzhi Meng
Summary: This study found that the addition of surfactants such as PEG 4000 and Tween 80 can significantly improve the enzymatic digestibility of dilute acid pretreated bamboo residue. Real-time surface plasmon resonance and fluorescence spectroscopy analysis revealed that Tween 80 performed better in separating irreversible cellulase adsorption onto lignin compared to PEG 4000, and PEG 4000 and Tween 80 intervened the interaction between lignin and cellulase through different mechanisms.
BIORESOURCE TECHNOLOGY
(2022)
Article
Materials Science, Paper & Wood
Florentyna Akus-Szylberg, Andrzej Antczak, Janusz Zawadzki
Summary: The effects of soaking aqueous ammonia pretreatment on fast-growing poplar wood for bioethanol production were studied. Results showed that higher temperature and ammonia concentration during pretreatment led to increased glucose content and reduced lignin content in the biomass, ultimately impacting sugar yield. Additionally, changes in polymerization degree and pore volume were investigated to further understand the impact of pretreatment conditions.
Article
Agricultural Engineering
Yequan Sheng, Yong Xu
Summary: The addition of ascorbic acid enhances lignin decomposition and cellulose conversion in dilute acid pretreatment, with a dose-dependent effect. NMR analysis shows that ascorbic acid significantly stimulates decomposed lignins compared to residual bulk lignins, leading to increased cellulose conversion. Therefore, ascorbic acid can improve the cellulose conversion rate of pretreated materials.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Fanyang Meng, Jing Fan, Fei Cui, Haiyan Yang, Zhengjun Shi, Dawei Wang, Jing Yang
Summary: This study proposed an innovative and efficient pre-treatment method using peroxy-citric acid (HPCA) to enhance enzymatic hydrolysis and bio-ethanol production of bamboo residues. HPCA-treated bamboo residues showed significantly higher enzymatic saccharification yield compared with citric acid (CA) pretreated residues. The removal of lignin and xylan was also effectively achieved by HPCA. Ethanol recovery of 17.18 g/L was achieved. This work provides a reference for mild biomass pretreatment using organic peracids.
BIORESOURCE TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
P. Tsafrakidou, A. Moutsoglou, P. Prodromidis, T. Moschakis, A. Goula, C. G. Biliaderis, A. -M. Michaelidou
Summary: This study investigated the pretreatment of spent coffee grounds (SCG) with aqueous ammonia soaking (AAS) to enhance their enzymatic hydrolysis. The effects of treatment time, SCG solids loading, and temperature were examined. The pretreated SCG were then hydrolyzed with cellulases and hemicellulases, and the resulting hydrolysate was used as a carbon source for bacterial cellulose production. Compositional and morphological changes of the biomass materials were evaluated using spectroscopy and microscopy.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Energy & Fuels
Tianying Chen, Heyin Wang, Guixin Guo, Hongyan Wang, Mian Li, Yanjun Tang
Summary: Acidic deep eutectic solvent (DES) pretreatment is a promising method for lignocellulose fractionation. This study developed a DES consisting of choline chloride and oxalic acid (ChCl/OA) to pretreat moso bamboo and investigated the effects of pretreated residue on enzymatic hydrolysis. The results showed that ChCl/OA pretreatment effectively removed hemicelluloses and lignin, leading to improved glucose yield. However, excessive removal of lignin negatively affected enzymatic hydrolysis. The study also revealed that surface lignin, hydrophobic interaction, and accessibility influenced enzymatic hydrolysis.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Agricultural Engineering
Fanyang Meng, Haiyan Yang, Zhengjun Shi, Ping Zhao, Jing Yang
Summary: This study investigated the bamboo pretreatment with alkaline deacetylation-aided hydrogen peroxide-acetic acid (HPAC-NaOH) for producing high-value-added products. The results showed that the posttreatment of alkaline deacetylation significantly increased glucose yield and ethanol concentrations by 20-27%. There was a strong negative correlation between the content of acetyl and cellulose accessibility and enzymatic hydrolysis yield. The deacetylation process improved cellulase adsorption capacities and the variations of hydrophilicity, cellulose crystallinity, and degree of polymerization, which enhanced the bioconversion of bamboo to biofuels.
BIORESOURCE TECHNOLOGY
(2022)
Article
Energy & Fuels
Moriko Qian, Hanwu Lei, Elmar Villota, Yunfeng Zhao, Chenxi Wang, Erguang Huo, Qingfa Zhang, Wendy Mateo, Xiaona Lin
Summary: A dilute-acid pretreatment assisted with microwave irradiation was developed to efficiently fabricate nanocrystalline cellulose (NCC) with the single use of the cellulase from Aspergillus niger. The utilization of microwave heating and diluted sulfuric acid in pretreatment significantly increased the NCC yield, and the conditions of pretreatment affected the crystal dimension of the nanocrystals as well as the thermal stability and crystallinity of the extracted NCC.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2021)
Article
Biotechnology & Applied Microbiology
Hui Zhang, Junhui Wu
Summary: Response surface methodology was used to optimize the aqueous ammonia pretreatment and enzymatic hydrolysis of corn cob powder using self-produced cellulases from Aspergillus niger HQ-1. The study identified the optimal conditions for pretreatment and enzymatic hydrolysis, resulting in high cellulose and hemicellulose recovery rates.
BIOCHEMICAL ENGINEERING JOURNAL
(2021)
Article
Biochemistry & Molecular Biology
Jing Yang, Hao Xu, Jianchun Jiang, Ning Zhang, Jingcong Xie, Jian Zhao, Min Wei
Summary: The study improved the enzymatic saccharification efficiency of bamboo residues through a moderate two-step pretreatment method, achieving high fermentable sugar concentration by altering the bamboo structure and using a mixture of enzymes. This effective strategy resulted in high enzymatic hydrolysis rates and potential utilization of bamboo residues.
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2021)
Article
Agricultural Engineering
Wei Tang, Xinxing Wu, Caoxing Huang, Zhe Ling, Chenhuan Lai, Qiang Yong
Summary: This study developed a novel biorefinery method for waste wheat straw, in which a natural surfactant humic acid was used during acidic pretreatment to enhance enzymatic saccharification efficiency. The success of enzymatic digestion was attributed to improved accessibility of cellulose to cellulase and structural changes in lignocellulose. These findings suggest that humic acid may be a beneficial surfactant in biorefinery processes and could potentially inspire research into other natural surfactants.
BIORESOURCE TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Donglin Xin, Xiaoyan Ge, Zongping Sun, Liisa Viikari, Junhua Zhang
ENZYME AND MICROBIAL TECHNOLOGY
(2015)
Article
Agricultural Engineering
Donglin Xin, Zongping Sun, Liisa Viikari, Junhua Zhang
INDUSTRIAL CROPS AND PRODUCTS
(2015)
Article
Agricultural Engineering
Jingfeng Wang, Donglin Xin, Xincun Hou, Juying Wu, Xifeng Fan, Kena Li, Junhua Zhang
BIORESOURCE TECHNOLOGY
(2016)
Article
Biotechnology & Applied Microbiology
Zhong Yang, Kang Li, Maomao Zhang, Donglin Xin, Junhua Zhang
BIOTECHNOLOGY FOR BIOFUELS
(2016)
Article
Green & Sustainable Science & Technology
Donglin Xin, Ming Yang, Yage Zhang, Xincun Hou, Juying Wu, Xifeng Fan, Jingfeng Wang, Junhua Zhang
Article
Chemistry, Multidisciplinary
Donglin Xin, Ming Yang, Xiang Chen, Ying Zhang, Li Ma, Junhua Zhang
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2017)
Article
Chemistry, Multidisciplinary
Donglin Xin, Ming Yang, Xiang Chen, Li Ma, Junhua Zhang
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2017)
Article
Biochemistry & Molecular Biology
Zongping Sun, Xiaoyan Ge, Donglin Xin, Junhua Zhang
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2014)
Article
Biochemistry & Molecular Biology
Xiaoyan Ge, Zongping Sun, Donglin Xin, Junhua Zhang
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2014)
Article
Biochemistry & Molecular Biology
Donglin Xin, Lili Jia, Chengjuan Zhao, Junhua Zhang
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2014)
Article
Agricultural Engineering
Zhong Yang, Maomao Zhang, Donglin Xin, Jingfeng Wang, Junhua Zhang
BIORESOURCE TECHNOLOGY
(2014)
Article
Green & Sustainable Science & Technology
Donglin Xin, Ming Yang, Xiang Chen, Ying Zhang, Rui Wang, Peiyao Wen, Junhua Zhang
Article
Chemistry, Multidisciplinary
Donglin Xin, Ming Yang, Xiang Chen, Junhua Zhang
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)