Review
Agricultural Engineering
Jitendra Kumar, Himanshu, Hemansi, Amanjot Kaur, Aayush Mathur
Summary: Global interest in lignocellulosic biorefineries has increased due to sustainable technological advancements. However, enzymatic hydrolysis in biorefinery operations faces challenges that limit cost-effectiveness.
BIORESOURCE TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Qiulu Chu, Wenyao Tong, Shufang Wu, Yongcan Jin, Jinguang Hu, Kai Song
Summary: Different additives have varied mechanisms in mitigating lignin inhibition, with 2-naphthol reducing the formation of inhibitory derivatives from lignin, phenolic acids diminishing enzyme binding effect of insoluble lignin, and 2-naphthol-7-sulfonate showing the most pronounced mitigation on the physical blockage effect of lignin.
Article
Energy & Fuels
Sharib Khan, Kait Kaarel Puss, Tiit Lukk, Mart Loog, Timo Kikas, Siim Salmar
Summary: Lignin from lignocellulosic biomass can replace raw materials in the chemical industry. In this study, hydrolysis lignin obtained via Sunburst(TM) pretreatment was enzymatically converted. Acid precipitated lignin (APL) was obtained through alkali solubilization and acid precipitation. Streptomyces coelicolor A3(2) showed the highest conversion rate of APL under highly alkaline conditions.
Review
Biotechnology & Applied Microbiology
Rui Zhai, Jinguang Hu, Mingjie Jin
Summary: Lignocellulosic biorefinery based on sugar-platform is considered an efficient strategy to replace fossil fuel-based refinery. However, various inhibitors, such as phenolic compounds, are generated during the pretreatment process, severely affecting the subsequent enzymatic hydrolysis and fermentation. This review summarizes the formation mechanism of phenolics in different pretreatment methods and discusses the key factors influencing their inhibitory effects. It also introduces recent achievements in inhibition mitigation strategies to enhance cellulose hydrolysis for sugar-platform biorefinery.
BIOTECHNOLOGY ADVANCES
(2022)
Article
Agricultural Engineering
Mingyang Hu, Lin Yuan, Ziyuan Cai, Weihua Zhang, Qiang Fu, Dandan Ji
Summary: In this study, a new pretreatment method combining ammonia fiber expansion (AFEX) and deep eutectic solvent (DES) was developed for the rapid separation of wheat straw fractions. The AFEX-assisted DES pretreatment significantly reduced pretreatment time and improved pretreatment efficiency. The study also investigated the enzymatic effect of cellulose on glucose generation.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Jie Wu, Mahmood Ebadian, Kwang Ho Kim, Chang Soo Kim, Jack Saddler
Summary: Densified wood pellets are a promising biomass feedstock, but storage and handling issues arise due to their friability and hygroscopic nature. Pre-steaming the biomass enhances pellet durability and binding, but drying and pelletization impede enzymatic hydrolysis. Addition of chemical steps before pre-steaming and mechanical refining can mitigate these negative effects.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Forough Momayez, Mattias Hedenstrom, Stefan Stagge, Leif J. Jonsson, Carlos Martin
Summary: In this study, hydrolysis lignin was extracted using the green solvent gamma-valerolactone (GVL), and it was found that mixtures containing sulfuric acid resulted in higher solubilization and regeneration rates. Characterization of the regenerated lignins revealed that treatment temperature had a significant impact on molecular weight, with SA-GVL lignins exhibiting higher and broader distribution of molecular weight.
BIORESOURCE TECHNOLOGY
(2022)
Review
Agricultural Engineering
Yequan Sheng, Su Shiung Lam, Yingji Wu, Shengbo Ge, Jinglei Wu, Liping Cai, Zhenhua Huang, Quyet Van Le, Christian Sonne, Changlei Xia
Summary: This paper reviews the structural changes of lignin and enzymatic hydrolysis of pretreated lignocellulosic biomass, highlighting the negative effects of pseudo-lignin formation during dilute acid pretreatment on enzymatic hydrolysis.
BIORESOURCE TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Thalita J. J. Bondancia, Camila Florencio, Graziela S. S. Baccarin, Cristiane S. S. Farinas
Summary: Cellulose nanostructures obtained from lignocellulosic biomass by the enzymatic route can offer advantages in terms of material properties and processing sustainability. The presence of auxiliary enzymes can promote the production of nanocellulose with improved properties.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Acoustics
Kait Kaarel Puss, Mart Loog, Siim Salmar
Summary: This study evaluates the effect of ultrasound on the dissolution of hydrolysis lignin (HL) in aqueous NaOH solutions and the acid precipitation yield of HL. The results show that the solubility of HL is strongly dependent on NaOH concentration, but ultrasound treatment significantly improves the solubility and reaches a plateau at a specific NaOH/HL ratio.
ULTRASONICS SONOCHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Vita Halysh, Juan Miguel Romero-Garcia, Alfonso M. Vidal, Tetiana Kulik, Borys Palianytsia, Minerva Garcia, Eulogio Castro
Summary: The present study focuses on using apricot seeds shells and walnut shells as a potential renewable material for biorefinery in Ukraine. The research work aimed to determine the relationship between the chemical composition of biomass residues and the recovery of sugars and lignin after enzymatic hydrolysis. The results show that alkaline pretreatment is more efficient in terms of glucose yield, and the maximum enzymatic conversions of cellulose reached were 99.7% and 94.6% for apricot seeds shells and walnut shells, respectively. The findings pave the way for the efficient utilization of shells through affordable chemical technologies, reducing environmental pollution and energy/material dependency.
Article
Chemistry, Multidisciplinary
Jikun Xu, Pengfei Zhou, Xinyan Liu, Lan Yuan, Chuntao Zhang, Lin Dai
Summary: This study presents a stepwise approach for hierarchically extracting hemicelluloses and lignin from poplar, while obtaining a cellulose-rich substrate. By breaking down amorphous portions and robust cell walls, enzymatic digestibility was significantly enhanced.
Article
Agricultural Engineering
Chenhuan Lai, Chundong Yang, Yuan Jia, Xin Xu, Kai Wang, Qiang Yong
Summary: This study investigates the relationship between lignin structures and their inhibitory effects in enzymatic saccharification. The results indicate that the content of condensed aromatic units and phenolic hydroxyl are crucial factors determining the lignin inhibition. The findings provide important insights for the development of lignocellulose biorefinery processes.
BIORESOURCE TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Jingwen Li, Zhongli Yang, Zhicheng Jiang, Mengying Ni, Min Xu
Summary: In this study, a composite hydrogel strain sensor was prepared within one minute by introducing adhesive substance and oxidizing agent. The sensor exhibited good sensing performance and self-healing property, making it suitable for wearable and flexible electronic devices.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Green & Sustainable Science & Technology
Caoxing Huang, Xiao Jiang, Xiaojun Shen, Jinguang Hu, Wei Tang, Xinxing Wu, Arthur Ragauskas, Hasan Jameel, Xianzhi Meng, Qiang Yong
Summary: Efficiently producing second-generation biofuels from biomass remains a long-term challenge due to biomass recalcitrance. Lignin significantly contributes to biomass recalcitrance by physically limiting enzyme access to carbohydrates. Research is focused on mitigating the negative effects of lignin on enzyme performance.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Agricultural Engineering
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
Yuping Li, Ziyan Xie, Yun Huang, Jiangyi Zeng, Chao Yang, Ling Yuan, Ying Wang, Yongqing Li
Summary: In this study, the characteristic flavonoids (CFs) of three licorice species were identified through integrated metabolic and transcriptomic analysis. The key regulators of CF biosynthesis were also identified. These findings provide valuable information for understanding the biosynthesis of CFs and future breeding of Glycyrrhiza varieties.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
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)
Article
Agricultural Engineering
Mohsen Sabzi-Nojadeh, Mohammad Pouresmaeil, Mina Amani, Mehdi Younessi-Hamzekhanlu, Filippo Maggi
Summary: This study shows that inoculating Summer savory plants with endophytic fungus Trichoderma harzianum can improve plant growth and increase salt tolerance. The fungus enhances growth, restores chlorophyll and antioxidant levels, reduces harmful substances, and increases proline and soluble sugar levels, thereby increasing crop productivity in saline conditions.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Yu Liu, Lei Li, Aichen Zhao, Xiuming Song, Lulu Wei, Mengdi Fang, Chuchu Zheng, Xiaodong Zhu
Summary: This study investigates the impact of peppermint essential oil microcapsules on the unpleasant odor emissions from wax oil coated wood products. The results show that microcapsules can improve the time and stability of odor release.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Mesut Budak, Mirac Kilic, Hikmet Guenal, Ismail Velik, Mesut Sirri
Summary: This study assessed land suitability for rapeseed production using topography, climate, and soil data by analytical hierarchy process (AHP) and the Mamdani Fuzzy Inference System (MFIS). The study area covered land in the Diyarbakir province of southeastern Turkiye. The results indicated the proportions of different land suitability classes and showed the compatibility of AHP and MFIS methods in assessing suitability.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
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
Marcos Vinicius Silva de Andrade, Simone Ribeiro Lucho, Renato Delmondez de Castro, Paulo Roberto Ribeiro
Summary: Stevia rebaudiana Bertoni, commonly known as stevia, is a widely cultivated shrub with highly sweetening metabolites. It has gained significant interest in the food and beverage industries due to its extremely sweet taste and various health benefits. Researchers are currently focused on studying biotechnological strategies to enhance the biosynthesis of stevia plant metabolites for improved cultivation and production.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Eleonora Cintura, Paulina Faria, Luisa Molari, Luca Barbaresi, Dario D'Orazio, Lina Nunes
Summary: This study investigated the properties of Arundo donax as a building material and found that it has strong adaptability, high hygroscopicity, and unique sound absorption behavior. The mechanical tests also demonstrated the applicability of the Arundo donax-based composite. This opens up new possibilities for the further application of Arundo donax-based materials.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Stiina Kotiranta, Juha-Matti Pihlava, Titta Kotilainen, Pauliina Palonen
Summary: The effect of light spectra, particularly far-red and short wavelength radiation, on the growth and secondary metabolites of cannabis is significant. Altering the R:FR ratio can increase the concentration and yield of secondary metabolites, while short wavelength radiation does not significantly affect plant morphology and secondary metabolite concentrations.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Xuze Liu, Fangmin Liang, Jinyuan Cheng, Xuelian Zhou, Jia Wang, Guigan Fang, Kuizhong Shen, Xianzhi Meng, Chen Huang, Arthur J. Ragauskas
Summary: A novel Na2S-facilitated DES pretreatment method was proposed to fractionate moso bamboo, which achieved high lignin removal and preserved most cellulose and hemicellulose with excellent enzymatic digestibility.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Zechun Ren, Xinyuan Zhou, Kejiao Ding, Tong Ji, Hao Sun, Xiang Chi, Yunzhao Wei, Min Xu
Summary: This study prepared a thermal/magnetic/light-triggered multi-stimuli responsive shape memory polymer composite with excellent properties by adding magnetic nanoparticles into a polyurethane composite. The composite showed high shape recovery rate, fast response behavior, and suitability for 3D printing. Controllable external stimuli allowed for dynamic, remote, and precise control of 4D transformations. This work is significant for the design of smart materials and devices.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Yurany Camacho Ardila, Jaiver Efren Jaimes Figueroa, Maria Regina Wolf Maciel
Summary: The higher heating value (HHV) and elemental composition are important properties of biomass, and their prediction using proximate and ultimate analysis is accurate.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
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
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)