Agricultural Engineering

Article Agricultural Engineering

Tween 80 reversed adverse effects of combined autohydrolysis and p-toluenesulfonic acid pretreatment on enzymatic hydrolysis of poplar

Ruoyan Li, Hui Ruan, Daihui Zhang, Chongyang Zhu, Chenhuan Lai, Qiang Yong

Summary: In this study, a combined pretreatment involving autohydrolysis and p-toluenesulfonic acid (p-TsOH) was performed on poplar to coproduce xylooligosaccharides (XOSs) and monosaccharides. The enzymatic digestibilities of the combined pretreated substrates were found to be extremely poor, but the addition of Tween 80 successfully improved the enzymatic hydrolysis.

BIORESOURCE TECHNOLOGY (2024)

Article Agricultural Engineering

Structural changes of poplar lignin during the ternary deep eutectic solvent (DES) treatment and synergetic alkali-DES treatment

Jingmo Zhou, Shubin Wu, Ying Liu

Summary: Expenditure isolation of lignin and the understanding of its structural variations during different isolation processes are crucial for the high-value utilization of lignin. This study proposed a green deep eutectic solvent (DES) consisting of choline chloride, ethylene glycol, and 4-chlorobenzene sulfonic acid for rapid lignin separation from poplar. The structural variations of DES lignin and its relationship with alkali pre-extraction of hemicellulose were investigated. The results showed that alkali pretreatment enhanced the DES separation of lignin and promoted the cleavage of specific linkages, resulting in reduced molecular weight and thermal stability of isolated DES lignin. Moreover, DES lignin obtained from integrated utilization displayed higher purity and S/G ratio compared to lignin obtained from direct DES treatment.

INDUSTRIAL CROPS AND PRODUCTS (2024)

Article Agricultural Engineering

Simultaneous aerobic nitrogen and phosphate removal capability of novel salt-tolerant strain, Pseudomonas mendocina A4: Characterization, mechanism and application potential

Hu Shu, Yonghao Ma, Huijie Lu, Huiming Sun, Jichen Zhao, Zhuohao Ruan, Jiayi Zhou, Yuting Liu, Fengkun Liu, Jingxuan Xu, Yazhi Zheng, Hui Guo, Qionghua Chen, Wen Huang

Summary: Pseudomonas mendocina A4 strain has the ability of simultaneous heterotrophic nitrification-aerobic denitrification and phosphorus removal. It shows adaptability to pH, carbon/nitrogen ratio, phosphorus/nitrogen ratio, temperature, and salinity. The nitrogen and phosphate removal processes follow the Gompertz model and are confirmed by the activities of key metabolic enzymes. Immobilization technology can enhance the nitrogen and phosphate removal efficiencies of strain A4. These findings suggest the potential application of strain A4 in both freshwater and marine culture wastewater treatment.

BIORESOURCE TECHNOLOGY (2024)

Article Agricultural Engineering

Improving biomass yields of microalgae biofilm by coculturing two microalgae species via forming biofilms with uniform microstructures and small cell-clusters

Yi Wang, Xinru Zhang, Yuyang Wu, Guangpu Sun, Zeyi Jiang, Siyuan Hao, Shiya Ye, Hu Zhang, Fan Zhang, Xinxin Zhang

Summary: The coculture of microalgae has the potential to promote the growth of microalgae biofilms. This study found that biomass yields can decrease when the biofilm porosity decreases, but can increase when the cocultured biofilms have a uniform microstructure and small cell-clusters. Analysis of cell morphologies and surface properties revealed that cells with small size, spherical shape, and reduced surface polymers can hinder the formation of cell-clusters, thereby promoting biomass yields.

BIORESOURCE TECHNOLOGY (2024)

Article Agricultural Engineering

Characterization of simultaneous ammonium and nitrate removal and microbial communities in airlift reactor using 3-hydroxybutyrate-co-3-hy-droxyvalerate (PHBV) as carbon source and biofilm carrier

Junchi Li, Fan Zhang, Bin Ma, Dedong Kong, Yiming Hu, Guangsuo Chen, Yunjie Ruan

Summary: This study established a method for simultaneous nitrate and ammonium removal using an airlift sequencing batch reactor with 3-hydroxybutyrate-co-3-hydroxyvalerate as carbon source and biofilm carrier. The results showed high removal rates of nitrate and ammonia nitrogen with no significant nitrite accumulation.

BIORESOURCE TECHNOLOGY (2024)

Article Agricultural Engineering

Co-gasification of biomass and oil shale under CO2 atmosphere: Comparative analysis of fixed-bed reactor, gas chromatography and thermogravimetric analysis coupled with mass spectroscopy (TGA-MS)

Mari Sinisalu, Oliver Jarvik, Birgit Mets, Alar Konist

Summary: Co-gasification of biomass with oil shale can reduce reliance on fossil fuels and enhance integration of renewable energy sources. The interaction between oil shale and biomass increases the concentrations of CO and CH4 in the producer gas. Pine bark exhibits the highest CO concentration and the blends of pine bark char have the lowest surface area among the tested samples.

BIORESOURCE TECHNOLOGY (2024)

Article Agricultural Engineering

Elucidating the function and potential inhibitory impact of monovalent cations on assessing the biodegradability of organic substrates in biochemical sulfide potential (BSP) assay

Lin Chen, Di Wu, Guanghao Chen

Summary: Sodium ions have inhibitory effects on the sulfate reagent in the BSP assay, while the presence of potassium ions can enhance the anaerobic biodegradability of organic substrates.

BIORESOURCE TECHNOLOGY (2024)

Article Agricultural Engineering

Enhanced simultaneous removal of phosphate and ammonium from swine wastewater using magnetic magnesium-loaded Chinese herbal medicine residues: Performance, mechanism, and resource utilization

Guiyin Wang, Ruoqi Liu, Zhanbiao Yang, Wei Liu, Xiaoxun Xu, Shirong Zhang, Zhang Cheng, Guochun Lv, Changlian Xu, Junzhuo Cai, Zhien Pu

Summary: Magnetic magnesium-loaded Chinese herbal medicine residues (MM-TCMRs) were prepared for simultaneous removal and recovery of phosphate and ammonium from wastewater. The MM-TCMRs exhibited larger surface areas and rougher structures, and could be separated by adjusting a magnetic field. The adsorption of phosphate and ammonium by MM-TCMRs followed the pseudo-second-order model, with high maximum adsorption capacities. Furthermore, the MM-TCMRs were found to positively impact soil fertility and alfalfa growth.

BIORESOURCE TECHNOLOGY (2024)

Article Agricultural Engineering

Single-nucleus RNA sequencing of Nicotiana tabacum seedlings reveals heterogeneity among cell types

Jingjing Jin, Lingtong Cheng, Lijun Meng, Huan Su, Peng Lu, Jiemeng Tao, Wei Zhang, Nan Liu, He Li, Jianfeng Zhang, Peijian Cao

Summary: This study performed single-nucleus sequencing of tobacco seedlings and identified 18 cell types with specific functions under different environmental stress. Comparison of genes between tobacco and rice revealed cell-specific and species-specific gene features. The study provides the first single-cell transcriptome atlas of tobacco seedlings, offering valuable insights into the role and functions of different cell types.

INDUSTRIAL CROPS AND PRODUCTS (2024)

Article Agricultural Engineering

Humification and fungal community succession during pig manure composting: Membrane covering and mature compost addition

Juan Wang, Minna Jiao, Xiangyu Zhan, Cuihuan Hu, Zengqiang Zhang

Summary: This study found that the combined use of a semi-permeable membrane and mature compost in pig manure composting can increase the concentration of humic substances, promote fungal community succession, and adding 15% MC under membrane covering can optimize the quality of composting products.

BIORESOURCE TECHNOLOGY (2024)

Article Agricultural Engineering

Highly transparent and hazy paper with desirable characteristics for flexible electronic devices

Yuqian Guo, Xianhui An, Xueren Qian

Summary: By impregnating cellulose-based polyurethane into cellulose paper, highly transparent and hazy paper with desirable properties, such as shape memory behavior and high conductivity, can be fabricated, providing vast opportunities for the development of flexible electronic devices.

INDUSTRIAL CROPS AND PRODUCTS (2024)

Article Agricultural Engineering

Three-dimensional structural characterization and mechanical properties of bamboo parenchyma tissue

Xiaohan Chen, Xianke Wang, Lili Shang, Xinxin Ma, Changhua Fang, Benhua Fei, Huanrong Liu, Shuqin Zhang

Summary: This study focuses on the comprehensive characterization of the three-dimensional (3D) structure of bamboo parenchyma and the evaluation of its tensile and compressive properties, as well as the analysis of its failure mechanisms. The study found that the measured tensile strength and elastic modulus of the parenchyma tissue are 48.81 MPa and 706.48 MPa, respectively. Compression failure modes in parenchyma tissue encompass compression bending and cell fracture, shear failure of the middle lamella, and detachment and debonding of the cell wall.

INDUSTRIAL CROPS AND PRODUCTS (2024)

Article Agricultural Engineering

Structural, defense enzyme activity and chemical composition changes in the xylem of Aquilaria sinensis during fungus induction

Tianfeng Liu, Yuxin Liu, Yunlin Fu, Mengji Qiao, Penglian Wei, Zhigao Liu, Yingjian Li

Summary: This study explored the formation mechanism of agarwood induced by fungus and its potential application in high-quality and high-yielding agarwood production. The results showed that the transition layer played a critical role in the continuous accumulation of agarwood, and the parenchyma cells of the xylem rays and interxylary phloem were the main action site of fungus. The accumulation and distribution of chemical composition in different layers were also investigated. The study identified the drivers of specific compounds and provided a theoretical foundation for future agarwood production.

INDUSTRIAL CROPS AND PRODUCTS (2024)

Article Agricultural Engineering

Long-term impact of nano zero-valent iron on methanogenic activity, microbial community structure, and transcription activity in anaerobic wastewater treatment system

Runhua Su, Huimin Fu, Lili Ding, Bo Fu, Su He, Haijun Ma, Haidong Hu, Hongqiang Ren

Summary: This study investigated the effects of long-term and continuous addition of NZVI on methanogenic activity, microbial community, and transcription activity. The results showed that low levels of NZVI inhibited methanogenesis, while high levels led to a sharp decrease in methane production and chemical oxygen demand removal. NZVI had adverse effects on cell viability and enzyme activity.

BIORESOURCE TECHNOLOGY (2024)

Article Agricultural Engineering

Alternating ventilation accelerates the mineralization and humification of food waste by optimizing the temperature-oxygen-moisture distribution in the static composting reactor

Lin Zhu, Yuxiang Zhao, Siyin Chen, Xinyin Miao, Zhou Fang, Xiangwu Yao, Chifei Dong, Baolan Hu

Summary: The study found that alternating ventilation can stabilize moisture content, reduce temperature and oxygen concentration range. It extended the duration of high temperature, improved the cooperation intensity of microbes, and stimulated the growth of core microbes. Additionally, it improved the seed germination index and humic acid content of the compost.

BIORESOURCE TECHNOLOGY (2024)

Article Agricultural Engineering

Strong, UV-blocking, and hydrophobic PVA composite films containing tunable lignin nanoparticles

Rui Tian, Yue Liu, Chao Wang, Weikun Jiang, Srinivas Janaswamy, Guihua Yang, Xingxiang Ji, Gaojin Lyu

Summary: In this study, hollow and solid lignin nanoparticles were synthesized through self-assembly and their application in PVA nanocomposite films was investigated. The results showed that the presence of hollow lignin nanoparticles in the films resulted in a room-like network structure, while the solid lignin nanoparticles induced different structural changes. The inclusion of LNPs improved the mechanical properties of the films, and both types of LNPs exhibited good hydrophobicity.

INDUSTRIAL CROPS AND PRODUCTS (2024)

Article Agricultural Engineering

Performance analysis of hydrochar derived from catalytic hydrothermal carbonization in the multicomponent emerging contaminant systems: Selectivity and modeling studies

Ragavan Chandrasekar, Mohammed Askkar Deen, Selvaraju Narayanasamy

Summary: In this study, catalytic hydrothermal carbonization was used to synthesize hydrochar as an alternative to pyrochar for the elimination of emerging contaminants in multicomponent systems. The synthesized hydrochar showed high specific surface area and excellent adsorption efficiency, making it a potential candidate for the removal of emerging contaminants.

BIORESOURCE TECHNOLOGY (2024)

Article Agricultural Engineering

Insights into biofilm development on polyhydroxyalkanoate biofilm carrier for anoxic azo dye decolourization of acid orange 7

Jia Yun Chang, Taufiq Ahmad Syauqi, Kumar Sudesh, Si Ling Ng

Summary: Polyhydroxyalkanoates (PHAs) serve as effective biocarriers for biofilm development, showing excellent attachment performance and stable biofilm structure in acid orange 7 treatment.

BIORESOURCE TECHNOLOGY (2024)

Article Agricultural Engineering

Enhanced adsorption of aromatic VOCs on hydrophobic porous biochar produced via microwave rapid pyrolysis

Junhao Lin, Zibo Xu, Qiaozhi Zhang, Yang Cao, Ondr ej Mas, Hanwu Lei, Daniel C. W. Tsang

Summary: This study presents a method of programmed microwave pyrolysis combined with low-dose ferric chloride to produce hydrophobic porous biochar suitable for efficient adsorption of benzene derivatives. The results show that programmed microwave pyrolysis can significantly increase the specific surface area of biochar and enhance its adsorption capacity for benzene and toluene.

BIORESOURCE TECHNOLOGY (2024)

Article Agricultural Engineering

Construction of robust and fully bio-based epoxy vitrimers with facile malleability, self-healing ability, and recyclability from peach gum polysaccharide and itaconic acid

Xianjie Pan, Zhaoyi Luo, Fanqi Liu, Quanqian Yi, Yanning Zeng

Summary: This study presents a novel strategy for fabricating fully bio-based epoxy vitrimers using peach gum and itaconic acid, which exhibit superior mechanical properties and thermostability. The materials were characterized and the self-healing and recycling capabilities were evaluated. The results demonstrate the potential of using these materials for sustainable industrial applications.

INDUSTRIAL CROPS AND PRODUCTS (2024)