Article
Materials Science, Paper & Wood
Sofia M. Rebola, Catarina A. Azevedo, Dmitry V. Evtuguin
Summary: A series of Eucalyptus globulus kraft pulps were cooked and bleached under different active alkali charges, leading to varying absorption capacities and fibre network strengths. Factors affecting absorption capacity include knot content, fibre hydrophilicity, morphology, and water retention capacity. The fibre network strength was found to increase with cooking AA, with TCF fluff pulps showing greater strength compared to ECF pulps.
Article
Biochemistry & Molecular Biology
Nazare Almeida, Valerie Meyer, Auphelia Burnet, Jeremy Boucher, David Talens-Perales, Susana Pereira, Petri Ihalainen, Thomas Levee, Julio Polaina, Michel Petit-Conil, Susana Camarero, Paula Pinto
Summary: A thermo and alkaline-tolerant xylanase has been developed to enhance the bleaching of kraft pulps, resulting in reduced chemical usage and improved environmental friendliness.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Agricultural Engineering
Patricia Henriques, Marta Martinho, Maria de Lurdes Serrano, Antonio P. Mendes de Sousa, Ana Maria Brites Alves
Summary: Xylooligosaccharides (XOS) are emerging prebiotics with various benefits for physical and mental health. In this study, bleached kraft pulp from Eucalyptus globulus was used as a lignin-free material for XOS production. Through alkaline extraction and acid hydrolysis, a maximum conversion rate of xylan to XOS of 30.2% was achieved under specific conditions, with xylobiose and xylotriose prevailing as products.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Energy & Fuels
Ghochapon Mongkhonsiri, Amata Anantpinijwatna, Pongtorn Charoensuppanimit, Amornchai Arpornwichanop, Rafiqul Gani, Suttichai Assabumrungrat
Summary: This study explores the integration of the biorefinery concept into the Kraft pulping process to achieve sustainability goals. By investigating various scenarios, it is found that Scenario II has the best economic performance, while Scenario III excels in energy efficiency and environmental performance.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2021)
Article
Biochemistry & Molecular Biology
Jiangdong Yu, Xuewen Xu, Chen Miao, Penghui Li, Guolin Tong
Summary: This study analyzed the effect of lignin side chain spatial configuration on cooking performance and compared the structural characteristics of eucalyptus and acacia during cooking using ozonation, GC-MS, NBO, and 2D NMR techniques. The changes in lignin content during the cooking process were studied for four different raw materials using ball milling and UV spectrum analysis. The results showed a continuous decrease in lignin content during cooking, with stability reached only in the late cooking stage. The E/T and S/G ratios of residual lignin followed a similar trend. Different raw materials exhibited variations in cooking efficiency and transformation rules during the cooking process, suggesting the potential for improving pulping efficiency through different technological means.
Article
Energy & Fuels
Mohammadreza Dehghani Firouzabadi, Aliasghar Tatari
Summary: In recent years, there has been a significant increase in attention to novel papermaking processes. The SEW fractionation process, a novel process for producing high value-added products, was investigated for its potential to produce pulp and paper from Eldar pine. The results showed that the SEW handsheets had lower strength properties but higher brightness before bleaching compared to the Kraft handsheets. Despite some limitations, such as high apparent density, the SEW pulps have advantages in terms of energy consumption and bleaching processes.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Materials Science, Textiles
Medhanit Mamaye, Zebene Kiflie, Sisay Feleke, Abubeker Yimam
Summary: The current study investigated the utilization of Ethiopian sugarcane bagasse in paper production through the Kraft pulping process and single stage hydrogen peroxide bleaching. The experimental results showed that by optimizing the process variables, the pulp yield and physical properties of the resulting paper can be improved.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Forestry
Ana Henriques, Dmitry V. Evtuguin
Summary: The effect of active alkali charge on the properties of tissue paper from Eucalyptus wood chips was evaluated. Changes in active alkali levels during cooking affected the chemical composition, intrinsic viscosity, and fiber morphology of the pulps, thereby influencing the properties of laboratory-produced tissue papers. Higher active alkali led to softer paper with lower tensile strength, but not significantly improved absorptivity, potentially due to lower water retention in pulps from higher active alkali cooking.
Article
Materials Science, Paper & Wood
Jingqian Chen, Rodger P. Beatson, Kenny Tam, Paul Bicho, Heather L. Trajano
Summary: This study compared the effects of mild pre-hydrolysis kraft pulping and conventional kraft pulping on commercial softwood chips. The results showed that pre-hydrolysis increased the yield of hemicelluloses oligomers when the chip thickness was less than 2 mm, while it resulted in a significant decrease in fiber quality when the chip thickness was greater than 6 mm. Pre-hydrolysis followed by kraft pulping enhanced delignification without significant reduction in fiber length and width.
Article
Materials Science, Paper & Wood
Laxman Kumar Pandey, Amit Kumar, Surendra Pal Singh, Dharm Dutt
Summary: The study focused on combined mechanical and xylanase treatment of wood chips, resulting in a reduction in cooking temperature by 20 degrees C and improvement in pulp brightness and physical strength properties.
Article
Energy & Fuels
Mariana S. T. Amandio, Jorge M. S. Rocha, Luisa S. Serafim, Ana M. R. B. Xavier
Summary: The study demonstrated that Eucalyptus globulus bark has the potential to be converted into biobased products, particularly bioethanol, with high efficiency, especially when subjected to kraft pulping. Yeasts such as S. cerevisiae and Ethanol Red(R) showed good fermentation performance, making them ideal for ethanol production.
Article
Materials Science, Paper & Wood
Sara Starrsjo, Maria Boman, Olena Sevastyanova, Mikael E. Lindstrom, Juha Fiskari
Summary: This study investigates the bleachability of softwood kraft pulp in an ECF light bleaching sequence and finds that different stages of bleaching require different kappa numbers to enhance bleachability.
NORDIC PULP & PAPER RESEARCH JOURNAL
(2021)
Article
Biochemistry & Molecular Biology
Xiaoxiao Wei, Yi Liu, Yadan Luo, Zheng Shen, Shuangfei Wang, Mingfu Li, Liming Zhang
Summary: In this study, three lignin fractions were extracted from eucalyptus kraft lignin using different solvents and characterized for their antioxidant activity. The ethyl acetate fraction showed the highest antioxidant activity with high homogeneity and phenolic hydroxyl content. Solvent extraction was found to be an effective way to obtain lignin fractions with high antioxidant activity and potential higher value applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Thermodynamics
Obste Therasme, Timothy A. Volk, Marie-Odile Fortier, Youngwoon Kim, Christopher D. Wood, HakSoo Ha, Atif Ali, Tristan Brown, Robert Malmsheimer
Summary: This study compared the greenhouse gas emissions of ethanol production under two processing energy scenarios and found that the biomass scenario had a greater emissions reduction compared to the natural gas scenario. Improving the energy efficiency of the biorefinery can lead to lower greenhouse gas emissions from ethanol production.
Article
Materials Science, Paper & Wood
Vijaya Vegunta, Eashwara Raju Senthilkumar, Par Linden, Olena Sevastyanova, Francisco Vilaplana, Andres Garcia, Maria Bjork, Ulla Jansson, Gunnar Henriksson, Mikael E. Lindstrom
Summary: Eucalyptus dunnii cultivation in Uruguay for kraft pulping purposes has been studied. Variations in wood properties have been observed depending on the growth site, with calcium content being the only significant difference related to pulping properties. High calcium content leads to slower delignification and higher yield losses.
NORDIC PULP & PAPER RESEARCH JOURNAL
(2022)
Article
Materials Science, Ceramics
Yinan Li, Shuangxi Nie, Liulian Huang, Lihui Chen, Yonghao Ni, Qinghong Zheng
Summary: In this study, a self-powered UV photodiode on a green substrate was successfully developed using a highly conductive AZO film and different electrode designs. The paper-based Schottky photodiodes operated without external power, with the Au-ZnO-AZO-Al structure showing improved response and faster speed compared to the Au-ZnO-Al structure. The enhancement in performance was attributed to the strong electric field in the ZnO-AZO n-n+ junction and the favorable ohmic contact between AZO and Al electrodes.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Environmental
Haodong Sun, Fengjie Tang, Qunfeng Chen, Linmin Xia, Chenyue Guo, He Liu, Xinpeng Zhao, Dongliang Zhao, Liulian Huang, Jianguo Li, Lihui Chen
Summary: Passive radiative cooling materials offer all-day thermal comfort without energy consumption by reflecting solar radiation and emitting heat into the 3 K universe. However, conventional materials have non-recyclable complex structures and unsustainable polymers, leading to resource waste and environmental issues. This study presents a low-cost, scalable, and eco-friendly radiative cooling material called cooling paper, made from delignified cellulose fibers and nano-sized hydroxyapatite (HA). The resulting paper can be easily recycled and deconstructed to recover cellulose fibers and HA, which can be reused to prepare secondary products with comparable performance. The recyclable cooling paper shows a temperature drop of 6-8.8 degrees C under direct solar radiation and an average cooling energy saving of 29% in buildings across China, indicating its promising potential for sustainable energy-efficient buildings.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Qunfeng Chen, Binbin Cheng, Zequn Wang, Xuhui Sun, Yang Liu, Haodong Sun, Jianwei Li, Lihui Chen, Xuhai Zhu, Liulian Huang, Yonghao Ni, Meng An, Jianguo Li
Summary: Excellent mechanical strength and conductivity are achieved in a cellulose ionogel via ZnCl2 doping. The Zn2+-cellulose engineering strategy produces a confined nanostructure that supports efficient transport of small anions and allows the ionogel to convert waste heat into electricity. This ion-molecular engineering strategy offers unprecedented freedom for developing adaptable gel materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Applied
Na Li, Hongying Wanyan, Shengchang Lu, He Xiao, Min Zhang, Kai Liu, Xiuliang Li, Bihui Du, Liulian Huang, Lihui Chen, Yonghao Ni, Hui Wu
Summary: Cellulose-based liquid marbles have been improved for stability and biocompatibility by incorporating biocompatible cellulose acetate particles and 3-allyloxy-2-hydroxy-propyl-cellulose (AHP-cellulose), resulting in cellulose-based hydrogel marbles with superior mechanical properties. These hydrogel marbles exhibit excellent stability and can bounce to a much higher height compared to liquid marbles. Furthermore, they are capable of monitoring ammonia with a low detection limit, making them suitable for gas sensing in chemical and environmental engineering.
CARBOHYDRATE POLYMERS
(2023)
Article
Biochemistry & Molecular Biology
Yinan Li, Jun Wang, Jiajia Guo, Chenglong Fu, Liulian Huang, Lihui Chen, Yonghao Ni, Qinghong Zheng
Summary: Transparent cellulose-based UV-absorbing films and drive actuators have been successfully prepared in this study. The actuators exhibit high sensitivity to both infrared and ultraviolet light and demonstrate excellent actuation performance. They have potential applications in bionic devices, such as simulating insects, smart doors, and excavator arms.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Applied
Shuai Bian, Yong Chen, Xiaohua Huang, Yan Guo, He Xiao, Min Zhang, Kai Liu, Liulian Huang, Lihui Chen, Hui Wu
Summary: In this paper, a catechol-containing dialdehyde carboxymethyl cellulose (DCMC-DA) adhesive with strong adhesion and biocompatibility was reported. The lap shear strength of DCMC-DA on porcine skin and wood were 0.14 MPa and 4.38 MPa, respectively, which increased by 350% and 694% as compared with that of CMC. Moreover, NIH 3T3 cell tests demonstrated that DCMC-DA has good biocompatibility to promote cell proliferation. The DCMC-DA with strong adhesion and biocompatibility has great potential as a green and environmentally friendly adhesive in the fields of wood and biomedicine.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
Article
Polymer Science
Lizhen Huang, Wenchang Sun, Li Shuai, Xiaolin Luo, Jing Liu
Summary: In this article, furan-acetone adducts were synthesized from lignocellulosic biomass, which can be used as adhesives with the addition of phosphoric acid. The addition of 5 wt% diphenylmethane diisocyanate (MDI) as a crosslinking agent resulted in plywood with wet and dry bonding strength that met the minimum requirement. This research provides a new way for the preparation of aldehyde-free green wood adhesives and the utilization of woody biomass.
Article
Chemistry, Multidisciplinary
Haodong Sun, Fengjie Tang, Yinghao Bi, Hao Sun, Liulian Huang, Feng Jiang, Lihui Chen, Jianguo Li
Summary: This study proposes a cost-effective and sustainable cellulose membrane that can achieve high temperature gradients during natural convection, leading to increased output voltage and power density of thermoelectric modules.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Applied
Haodong Sun, Yuwen Chen, Wenchao Zeng, Fengjie Tang, Yinghao Bi, Qingxin Lu, Ajoy Kanti Mondal, Liulian Huang, Lihui Chen, Jianguo Li
Summary: We designed a robust and eco-friendly cooler by assembling nano cellulose and inorganic nanoparticles using a scalable solution-processable strategy. The cooler features a brick-and-mortar structure, with the nano cellulose forming the interwoven framework and the inorganic nanoparticles uniformly distributed in the skeleton, contributing to high mechanical strength and flexibility. It also exhibits high solar reflectance and mid-infrared emissivity, resulting in a significant temperature drop in outdoor environments.
CARBOHYDRATE POLYMERS
(2023)
Article
Thermodynamics
Yinan Li, Jun Wang, Chenglong Fu, Liulian Huang, Lihui Chen, Yonghao Ni, Qinghong Zheng
Summary: Green cellulose-based solar light capturing composite films consisting of carbon nanotubes (CNT) and cellulose nanofibrils (CNF) with high photothermal conversion performance were developed. The composite films showed excellent mechanical properties due to the strong electrostatic interactions between CNFs and cationic-modified CNTs. The effect of CNT/CNF ratio on the photothermal conversion capacity and coefficient of thermal expansion (CTE) was investigated.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Multidisciplinary Sciences
Guangxu Yang, Zhenggang Gong, Xiaolin Luo, Lihui Chen, Li Shuai
Summary: A method for preparing lignin-based wood adhesives from biomass has been developed, which can replace traditional synthetic adhesives. Plywood with superior performances can be produced using these adhesives, making them promising alternatives in various industries.
Article
Engineering, Environmental
Zhenggang Gong, Guangxu Yang, Liulian Huang, Lihui Chen, Xiaolin Luo, Li Shuai
Summary: An efficient phenol-assisted depolymerisation (PAD) process was developed to selectively cleave methylene linkages in condensed lignins. Phenol served as a solvent to dissolve lignin and also scavenged methylene linkages to facilitate the depolymerisation. The PAD process achieved higher yields of lignin monomers and bisphenols compared to existing depolymerisation methods, and the residual polyphenols could be used in adhesive synthesis for plywood applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Guangxu Yang, Zhenggang Gong, Bei Zhou, Xiaolin Luo, Jing Liu, Guanben Du, Chengke Zhao, Li Shuai
Summary: This study presents a two-step strategy to produce lignin-based wood adhesives using industrially available technical lignins. The lignin-formaldehyde adhesive synthesized through hydrodeoxygenation and acid-mediated methylolation exhibits lighter color and superior adhesion performance compared to traditional LPF resins.
Article
Agricultural Engineering
Guangxu Yang, Zhenggang Gong, Lizhen Huang, Xiaolin Luo, Li Shuai, Jing Liu
Summary: This study developed new plant proteins, such as corn germ and green rapeseed proteins, as lignin-blockers to improve cellulose accessibility in lignocellulosic substrates. These plant proteins were effective in overcoming negative lignin effects and achieving robust cellulose enzymatic conversion in substrates with high cellulose accessibility. However, they showed insignificant promotion effects on substrates with low cellulose accessibility.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Chemistry, Physical
Jianguo Li, Fengjie Tang, Yinghao Bi, Haodong Sun, Liulian Huang, Lihui Chen
Summary: This study presents a new method to prepare sustainable, robust, customizable, and scalable cooling cellulose fabric through the fibrillation of cellulosic fibers and in-situ synthesis of SiO2 nanoparticles. The developed fabric reflects solar light effectively and emits mid-infrared light, leading to a significant cooling effect on the human body in high-temperature summer. Furthermore, this fabric demonstrates durable and effective cooling performance after enduring mechanical washing and exposure to air.
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)
