Pub Date : 2025-11-01DOI: 10.1016/j.jobab.2025.09.001
Ameena Bacchus, Weijue Gao, Pedram Fatehi
Sulfonated lignin has potential applications in various fields, including wastewater treatment, the textile industry, and construction. Although the reaction chemistry of sulfonated lignin has been well studied, the method of drying this material after synthesis has not been evaluated. In this study, sulfoethylated kraft lignin (SEKL) was synthesized as a representative sulfonated lignin to investigate the impact of drying temperature on its structure and properties. For SEKL, freeze-drying at –55 °C resulted in the highest charge density, water-solubility, and more uniform chemical structures. The sulfonic acid groups underwent alkylation reaction after the sample was oven-dried at 55 and 80 °C, which was accompanied by a reduction in solubility and charge density of the sample, as well as an increase in glass transition temperature. Furthermore, the sample after drying at higher temperatures of 105 and 130 °C not only exhibited the alkylation but also underwent hydrolysis of the sulfonic acid groups at the phenolic position of lignin. This change was accompanied by a further reduction in molecular weight, solubility, and charge density, as well as a decrease in the glass transition temperature. It was found that the alkylation and hydrolysis of SEKL occurred to varying degrees, and higher temperatures promoted hydrolysis. Based on the results of this work, drying temperature has a significant effect on the properties of the SEKL sample, implying that it must be taken into account when considering its application in different fields.
{"title":"Structural insights of sulfoethylated kraft lignin at different drying temperatures","authors":"Ameena Bacchus, Weijue Gao, Pedram Fatehi","doi":"10.1016/j.jobab.2025.09.001","DOIUrl":"10.1016/j.jobab.2025.09.001","url":null,"abstract":"<div><div>Sulfonated lignin has potential applications in various fields, including wastewater treatment, the textile industry, and construction. Although the reaction chemistry of sulfonated lignin has been well studied, the method of drying this material after synthesis has not been evaluated. In this study, sulfoethylated kraft lignin (SEKL) was synthesized as a representative sulfonated lignin to investigate the impact of drying temperature on its structure and properties. For SEKL, freeze-drying at –55 °C resulted in the highest charge density, water-solubility, and more uniform chemical structures. The sulfonic acid groups underwent alkylation reaction after the sample was oven-dried at 55 and 80 °C, which was accompanied by a reduction in solubility and charge density of the sample, as well as an increase in glass transition temperature. Furthermore, the sample after drying at higher temperatures of 105 and 130 °C not only exhibited the alkylation but also underwent hydrolysis of the sulfonic acid groups at the phenolic position of lignin. This change was accompanied by a further reduction in molecular weight, solubility, and charge density, as well as a decrease in the glass transition temperature. It was found that the alkylation and hydrolysis of SEKL occurred to varying degrees, and higher temperatures promoted hydrolysis. Based on the results of this work, drying temperature has a significant effect on the properties of the SEKL sample, implying that it must be taken into account when considering its application in different fields.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"10 4","pages":"Pages 497-512"},"PeriodicalIF":13.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-01DOI: 10.1016/j.jobab.2025.09.003
M-Haidar Ali Dali , Mohamed Hamid Salim , Malak AbuZaid , Maryam Omar Subhi Qassem , Faisal Al Marzooqi , Andrea Ceriani , Alessandro Decarlis , Ludovic Francis Dumée , Blaise Leopold Tardy
Micro and nanofibers have the ability to imbue control over water transport properties and mechanical cohesion to granular materials. These key characteristics are proportional to the fiber size, if finely tuned, and can enable soils to more effectively host life. Typically, requirements include a high organic matter content, a rich microbiome, and especially physico-chemical properties conducive to water dynamics. Herein, we developed mechanochemical processes to fibrillate food-waste-based biomass (namely, peels) into a range of fiber solutions. Macrofibers and nanofibers were obtained via mild processing steps and were fully characterized, the relation between the morphology as well as physico-chemical properties of the fibers was thoroughly studied. Three sand types associated with deserts were evaluated for their potential benefits from the fiber amendments. The compressive response of the amended soils and, more importantly, their water holding, water permeability, and evaporation rate were thoroughly evaluated. The resistance of reinforced soil matrices to biodegradation and dry-wet cycling was also used to evaluate long-term performance. Finally, this study provides an outlook on nutrient retention for agricultural endeavors as a function of fiber amendment type and content.
{"title":"Evaluating nanocellulose from food waste as a functional amendment for sandy soils: Linking fiber structure to water dynamics, soil mechanics, and plant-microbes interactions","authors":"M-Haidar Ali Dali , Mohamed Hamid Salim , Malak AbuZaid , Maryam Omar Subhi Qassem , Faisal Al Marzooqi , Andrea Ceriani , Alessandro Decarlis , Ludovic Francis Dumée , Blaise Leopold Tardy","doi":"10.1016/j.jobab.2025.09.003","DOIUrl":"10.1016/j.jobab.2025.09.003","url":null,"abstract":"<div><div>Micro and nanofibers have the ability to imbue control over water transport properties and mechanical cohesion to granular materials. These key characteristics are proportional to the fiber size, if finely tuned, and can enable soils to more effectively host life. Typically, requirements include a high organic matter content, a rich microbiome, and especially physico-chemical properties conducive to water dynamics. Herein, we developed mechanochemical processes to fibrillate food-waste-based biomass (namely, peels) into a range of fiber solutions. Macrofibers and nanofibers were obtained via mild processing steps and were fully characterized, the relation between the morphology as well as physico-chemical properties of the fibers was thoroughly studied. Three sand types associated with deserts were evaluated for their potential benefits from the fiber amendments. The compressive response of the amended soils and, more importantly, their water holding, water permeability, and evaporation rate were thoroughly evaluated. The resistance of reinforced soil matrices to biodegradation and dry-wet cycling was also used to evaluate long-term performance. Finally, this study provides an outlook on nutrient retention for agricultural endeavors as a function of fiber amendment type and content.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"10 4","pages":"Pages 513-529"},"PeriodicalIF":13.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-01DOI: 10.1016/j.jobab.2025.07.001
Iris Correia , Maria Eduarda Fernandes , Dorinda Marques-da-Silva
Olive oil is a nutritionally and economically valuable product whose global production has steadily increased, alongside the generation of large volumes of solid and liquid waste. Olive oil mill wastewater and solid residues such as olive pomace and olive stones have become major environmental concerns due to their high pollutant load. At the same time, these byproducts offer an opportunity: their valorization as low-cost, sustainable adsorbents for water treatment. Addressing this dual environmental challenge, this review provides a comprehensive and systematized synthesis of the current state of research on the use of olive oil production residues for water decontamination via adsorption. Specifically, the study maps the types of byproducts used, their target pollutants, removal efficiencies, and adsorption capacities. Unlike previous reviews, this work emphasizes studies that apply raw or minimally processed residues, as well as experiments conducted with real wastewater or under environmentally relevant conditions. The data are presented in a structured and comparative format, highlighting promising results and underexplored combinations. By identifying trends, gaps, and practical applications, this review contributes to advancing the development of circular economy-based, eco-friendly solutions for water pollution control and provides a valuable resource for future research and implementation.
{"title":"Unveiling the potential of olive oil production residues as adsorbent materials for water treatment: A literature review","authors":"Iris Correia , Maria Eduarda Fernandes , Dorinda Marques-da-Silva","doi":"10.1016/j.jobab.2025.07.001","DOIUrl":"10.1016/j.jobab.2025.07.001","url":null,"abstract":"<div><div>Olive oil is a nutritionally and economically valuable product whose global production has steadily increased, alongside the generation of large volumes of solid and liquid waste. Olive oil mill wastewater and solid residues such as olive pomace and olive stones have become major environmental concerns due to their high pollutant load. At the same time, these byproducts offer an opportunity: their valorization as low-cost, sustainable adsorbents for water treatment. Addressing this dual environmental challenge, this review provides a comprehensive and systematized synthesis of the current state of research on the use of olive oil production residues for water decontamination via adsorption. Specifically, the study maps the types of byproducts used, their target pollutants, removal efficiencies, and adsorption capacities. Unlike previous reviews, this work emphasizes studies that apply raw or minimally processed residues, as well as experiments conducted with real wastewater or under environmentally relevant conditions. The data are presented in a structured and comparative format, highlighting promising results and underexplored combinations. By identifying trends, gaps, and practical applications, this review contributes to advancing the development of circular economy-based, eco-friendly solutions for water pollution control and provides a valuable resource for future research and implementation.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"10 4","pages":"Pages 460-475"},"PeriodicalIF":13.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A notable challenge in zinc ion hybrid supercapacitor (ZiHSC) is the size discrepancy between the carbon cathode pores and the [Zn·(H2O)6]2+ (diameter of ∼0.86 nm), which weakens ionic migration kinetics and reduces energy density. To address this, wood-derived porous carbon with a hierarchical pore structure was synthesized via combined chemical and physical activation. The thermal reduction reaction between H2O steam and the marginal carbon atoms in the pre-existing pores was revealed, successfully enlarging pore diameters from 0.54 nm to 0.71 nm and 1.13 nm. The optimized electrode exhibited a specific capacitance of 412.76 F/g at the scan rate of 5 mV/s in a three-electrode system, and a specific capacity of 269.54 mAh/g at 0.2 A/g current density, and a high energy density of 210.76 Wh/kg at the power density of 1 296 W/kg (based on active material). Furthermore, it exhibited accelerated ion diffusion kinetics within the ZiHSC device and excellent cycling stability (93.55% capacity retention after 20, 000 cycles). In situ X-ray powder diffraction (XRD) and Raman spectra revealed that the enhanced charge storage mechanism was coupled with dynamic phase transitions of Zn4SO4(OH)6·5H2O crystallites on electrode surface and the adsorption of Zn2+/[Zn·(H2O)6]2+ into hierarchical pore channel during discharge. This study presents a novel approach for improving the structural and supercapacitive properties of activated carbon materials, demonstrating excellent potential for practical applications.
{"title":"Modulating pore channels of activated carbon from biomass to assemble zinc ion hybrid supercapacitor with high specific capacitance","authors":"Qiang Qu , Di Xing , Yongliang Chen , Mingqiang Zhu","doi":"10.1016/j.jobab.2025.08.002","DOIUrl":"10.1016/j.jobab.2025.08.002","url":null,"abstract":"<div><div>A notable challenge in zinc ion hybrid supercapacitor (ZiHSC) is the size discrepancy between the carbon cathode pores and the [Zn·(H<sub>2</sub>O)<sub>6</sub>]<sup>2+</sup> (diameter of ∼0.86 nm), which weakens ionic migration kinetics and reduces energy density. To address this, wood-derived porous carbon with a hierarchical pore structure was synthesized via combined chemical and physical activation. The thermal reduction reaction between H<sub>2</sub>O steam and the marginal carbon atoms in the pre-existing pores was revealed, successfully enlarging pore diameters from 0.54 nm to 0.71 nm and 1.13 nm. The optimized electrode exhibited a specific capacitance of 412.76 F/g at the scan rate of 5 mV/s in a three-electrode system, and a specific capacity of 269.54 mAh/g at 0.2 A/g current density, and a high energy density of 210.76 Wh/kg at the power density of 1 296 W/kg (based on active material). Furthermore, it exhibited accelerated ion diffusion kinetics within the ZiHSC device and excellent cycling stability (93.55% capacity retention after 20, 000 cycles). In situ X-ray powder diffraction (XRD) and Raman spectra revealed that the enhanced charge storage mechanism was coupled with dynamic phase transitions of Zn<sub>4</sub>SO<sub>4</sub>(OH)<sub>6</sub>·5H<sub>2</sub>O crystallites on electrode surface and the adsorption of Zn<sup>2+</sup>/[Zn·(H<sub>2</sub>O)<sub>6</sub>]<sup>2+</sup> into hierarchical pore channel during discharge. This study presents a novel approach for improving the structural and supercapacitive properties of activated carbon materials, demonstrating excellent potential for practical applications.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"10 4","pages":"Pages 616-630"},"PeriodicalIF":13.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-01DOI: 10.1016/j.jobab.2025.01.001
Qi Zhang , Xiaohong Tang , Qian Zhao , Xianchun Chen , Ke Wang , Qin Zhang , Qiang Fu
The multifunctional utilization of biomass materials represents an effective strategy to address global resource shortages, mitigate environmental challenges, and support sustainable human development. However, the inherent insulating properties of most natural biomass materials significantly limit their applicability in advanced electronic technologies, including electromagnetic shielding, electrode capacitors, and triboelectric generators. Electroless plating (ELP), a versatile technique for metallization and functionalization, has attracted considerable attention over the past decade for its potential to endow biomass materials with tailored properties. This review provides a comprehensive analysis of ELP technology in the development of multidimensional functionalized biomass materials, emphasizing surface chemistry and functional applications. It outlines the underlying principles and recent technological advancements of ELP, as well as the properties and applications of metallized biomass materials. By achieving an optimal balance between functionality and ease of fabrication, the ELP demonstrates significant potential to expand the applications of biomass materials across various domains.
{"title":"Multifunctional biomass materials based on electroless plating","authors":"Qi Zhang , Xiaohong Tang , Qian Zhao , Xianchun Chen , Ke Wang , Qin Zhang , Qiang Fu","doi":"10.1016/j.jobab.2025.01.001","DOIUrl":"10.1016/j.jobab.2025.01.001","url":null,"abstract":"<div><div>The multifunctional utilization of biomass materials represents an effective strategy to address global resource shortages, mitigate environmental challenges, and support sustainable human development. However, the inherent insulating properties of most natural biomass materials significantly limit their applicability in advanced electronic technologies, including electromagnetic shielding, electrode capacitors, and triboelectric generators. Electroless plating (ELP), a versatile technique for metallization and functionalization, has attracted considerable attention over the past decade for its potential to endow biomass materials with tailored properties. This review provides a comprehensive analysis of ELP technology in the development of multidimensional functionalized biomass materials, emphasizing surface chemistry and functional applications. It outlines the underlying principles and recent technological advancements of ELP, as well as the properties and applications of metallized biomass materials. By achieving an optimal balance between functionality and ease of fabrication, the ELP demonstrates significant potential to expand the applications of biomass materials across various domains.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"10 4","pages":"Pages 476-496"},"PeriodicalIF":13.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-01DOI: 10.1016/j.jobab.2025.09.005
Jongbeom Park , Woo-Young Jeon , Min-Jeong Jang , Hye-Jeong Lee , Sung-Hwa Seo , Young-Su Kim , HyunA Park , Kyung Taek Heo , Bashu Dev Pardhe , Hyunju Kim , Dongjun Park , Ik-Sung Ahn , Ye Won Bae , Hee Cheol Kang , Jae Woo Chung , Soon Ho Jang , Jung-Oh Ahn
The development of sustainable, eco-friendly polyesters from renewable resources is crucial for reducing dependence on petroleum-based plastics. However, despite advances in microbial production of bioplastics, significant challenges remain in achieving high conversion efficiency and scalability for industrial applications. This study is the first to report the synthesis of a 100% bio-based polyester using both 1,12-dodecanedioic acid (1,12-diacid) and 1,12-dodecanediol (1,12-diol) via a two-step microbial bioconversion from a single plant oil-derived alkane. An engineered Candida tropicalis strain produced 150 g/L of 1,12-diacid with a productivity of 1.53 g/(L·h) in a 5 L fed-batch system using a two-phase biotransformation strategy. Escherichia coli engineered to express carboxylic acid reductase, which reduces carboxylic acids to aldehydes, and its activation enzyme phosphopantetheinyl transferase, converted 1,12-diacid into 68 g/L 1,12-diol with a productivity of 1.42 g/(L·h) in a 5 L fed-batch system, representing high titer and productivity for microbial production of long-chain α,ω-diols. Both monomer production processes were successfully scaled up to a 50 L pilot fermenter, validating their potential for industrial implementation. A highly efficient downstream purification process was developed, achieving > 98% purity and recovery rates for both monomers. The bio-derived monomers enabled the synthesis of polyesters with molecular weight and thermal characteristics similar to petroleum-based monomers of the same chemical structure. This integrated approach establishes a robust and scalable microbial platform that converts renewable lipid feedstocks into fully bio-based polyesters, thereby demonstrating an environmentally sustainable and industrially viable route to circular bioeconomy-based polyester production.
{"title":"An end-to-end microbial platform for 100% bio-based long-chain polyester: From renewable substrate to eco-friendly polymer","authors":"Jongbeom Park , Woo-Young Jeon , Min-Jeong Jang , Hye-Jeong Lee , Sung-Hwa Seo , Young-Su Kim , HyunA Park , Kyung Taek Heo , Bashu Dev Pardhe , Hyunju Kim , Dongjun Park , Ik-Sung Ahn , Ye Won Bae , Hee Cheol Kang , Jae Woo Chung , Soon Ho Jang , Jung-Oh Ahn","doi":"10.1016/j.jobab.2025.09.005","DOIUrl":"10.1016/j.jobab.2025.09.005","url":null,"abstract":"<div><div>The development of sustainable, eco-friendly polyesters from renewable resources is crucial for reducing dependence on petroleum-based plastics. However, despite advances in microbial production of bioplastics, significant challenges remain in achieving high conversion efficiency and scalability for industrial applications. This study is the first to report the synthesis of a 100% bio-based polyester using both 1,12-dodecanedioic acid (1,12-diacid) and 1,12-dodecanediol (1,12-diol) via a two-step microbial bioconversion from a single plant oil-derived alkane. An engineered <em>Candida tropicalis</em> strain produced 150 g/L of 1,12-diacid with a productivity of 1.53 g/(L·h) in a 5 L fed-batch system using a two-phase biotransformation strategy. <em>Escherichia coli</em> engineered to express carboxylic acid reductase, which reduces carboxylic acids to aldehydes, and its activation enzyme phosphopantetheinyl transferase, converted 1,12-diacid into 68 g/L 1,12-diol with a productivity of 1.42 g/(L·h) in a 5 L fed-batch system, representing high titer and productivity for microbial production of long-chain α,ω-diols. Both monomer production processes were successfully scaled up to a 50 L pilot fermenter, validating their potential for industrial implementation. A highly efficient downstream purification process was developed, achieving > 98% purity and recovery rates for both monomers. The bio-derived monomers enabled the synthesis of polyesters with molecular weight and thermal characteristics similar to petroleum-based monomers of the same chemical structure. This integrated approach establishes a robust and scalable microbial platform that converts renewable lipid feedstocks into fully bio-based polyesters, thereby demonstrating an environmentally sustainable and industrially viable route to circular bioeconomy-based polyester production.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"10 4","pages":"Pages 530-544"},"PeriodicalIF":13.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-01DOI: 10.1016/j.jobab.2025.07.005
Kang Yang , Chao Duan , Yijian Wen , Guodong Tian , Ruoteng Ma , Xiaoshuang Liu , Yucheng Bie
In the present study, we innovatively construct a porous sponge-like solid-solid phase change fiber (SSPCF) based on one-pot coaxial wet spinning process. For the core-sheath SSPCF, cellulose serves as the sheath precursor, while an isocyanate modified polyethylene glycol (PEG), namely polyurethane-based hexamethylene diisocyanate (PUH), acts as the core solid-solid phase change material (SSPCM). Upon the non-solvent induced phase separation (NIPS) during the wet spinning, the unique SSPCF with thin and dense sheath yet thick and porous sponge-like core were successfully fabricated, and they exhibited excellent slow heat release, high-temperature thermal protection. It is hypothesized that the porous structure within the fiber core primarily accounts for the superior temperature control heat release behavior and thermal insulation capability. Additionally, the prepared SSPCFs demonstrate high phase change enthalpy (105.26 J/g), high strength (10.38 MPa), excellent leak-proof and cyclic stability. Compared to solid-liquid phase change fibers (enthalpy: 110.7 J/g) and commercial polyethylene terephthalate (PET) fibers, the thermal response time (900 s) of the SSPCFs is extended by 300 s and 755 s, while their heat release time (450 s) is increased by 127 and 347 s, respectively. This research provides inspiration for the development of high-temperature insulation and slow heat release functional fibers and fabrics.
{"title":"Hierarchically porous coaxial wet-spun cellulose/polyurethane based hexamethylene diisocyanate (PUH) solid-solid phase change fiber for enhanced thermal management","authors":"Kang Yang , Chao Duan , Yijian Wen , Guodong Tian , Ruoteng Ma , Xiaoshuang Liu , Yucheng Bie","doi":"10.1016/j.jobab.2025.07.005","DOIUrl":"10.1016/j.jobab.2025.07.005","url":null,"abstract":"<div><div>In the present study, we innovatively construct a porous sponge-like solid-solid phase change fiber (SSPCF) based on one-pot coaxial wet spinning process. For the core-sheath SSPCF, cellulose serves as the sheath precursor, while an isocyanate modified polyethylene glycol (PEG), namely polyurethane-based hexamethylene diisocyanate (PUH), acts as the core solid-solid phase change material (SSPCM). Upon the non-solvent induced phase separation (NIPS) during the wet spinning, the unique SSPCF with thin and dense sheath yet thick and porous sponge-like core were successfully fabricated, and they exhibited excellent slow heat release, high-temperature thermal protection. It is hypothesized that the porous structure within the fiber core primarily accounts for the superior temperature control heat release behavior and thermal insulation capability. Additionally, the prepared SSPCFs demonstrate high phase change enthalpy (105.26 J/g), high strength (10.38 MPa), excellent leak-proof and cyclic stability. Compared to solid-liquid phase change fibers (enthalpy: 110.7 J/g) and commercial polyethylene terephthalate (PET) fibers, the thermal response time (900 s) of the SSPCFs is extended by 300 s and 755 s, while their heat release time (450 s) is increased by 127 and 347 s, respectively. This research provides inspiration for the development of high-temperature insulation and slow heat release functional fibers and fabrics.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"10 4","pages":"Pages 648-659"},"PeriodicalIF":13.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-01DOI: 10.1016/j.jobab.2025.09.002
Hao Jia , Wenhui Su , Bin Huang , Xianxian He , Shaohui Fan , Zhoubin Huang , Chuanxia Pan , Chenye Liu
The fluctuations of storage temperature and humidity detrimentally affect the bamboo quality and longevity, making it crucial to investigate. Herein, we explored the physical and mechanical properties of moso bamboo (Phyllostachys edulis) subjected to 100-day moist heat cycling aging (MHCA-1: transitioning from low-temperature/high-humidity to high-temperature/low-humidity; MHCA-2: transitioning from low-temperature/low-humidity to high-temperature/high-humidity; CHT: 25 °C-constant temperature and 60% relative humidity) alongside a control group. Employing a multiscale characterization and Random Forest (RF) modeling, we evaluated the impacts of temperature and humidity fluctuations on the bamboo quality, and the influence mechanism of storage conditions on its physical and mechanical properties were elucidated. Results indicated that elevated temperature and humidity led to remarkable fluctuation in bamboo moisture (from −20.36% to 32.99%), weight gain (from −32.69% to 6.19%), and dimensional expansion (from −5.37% to 2.38%). Conversely, high-temperature and low-humidity drying conditions resulted in moisture loss and dimensional shrinkage. Total color difference (TCD) of bamboo cortex followed the order: MHCA-2 (7.46) < CHT (12.24) < MHCA-1 (20.10) < control (22.63). The TCD of bamboo pith positively was related with storage temperature. Periodic moist heat aging induced the permanent deformation in bamboo, reducing its elastic modulus by 30.05%–43.79%. Under moist heat aging conditions, the characteristic hemicellulose functional groups, including hydroxyl (−OH), carbonyl (C = O), ether (C–O–C), and aromatic C = C moieties exhibited remarkable structural modifications, i.e., peak weakening, shifting, or morphological alterations in Fourier transform infrared (FT-IR) spectra. Additionally, these conditions elevated the thermal decomposition onset temperature of cellulose while decreasing its peak intensity. Overall, the RF modeling approach demonstrated a high accuracy in predicting bamboo behavior under varying moisture-heat conditions. It improved bamboo storage and recycling by supporting sorting and grading with reliable long-term data.
{"title":"Hydrothermal aging of moso bamboo: Degradation mechanisms and storage life prediction","authors":"Hao Jia , Wenhui Su , Bin Huang , Xianxian He , Shaohui Fan , Zhoubin Huang , Chuanxia Pan , Chenye Liu","doi":"10.1016/j.jobab.2025.09.002","DOIUrl":"10.1016/j.jobab.2025.09.002","url":null,"abstract":"<div><div>The fluctuations of storage temperature and humidity detrimentally affect the bamboo quality and longevity, making it crucial to investigate. Herein, we explored the physical and mechanical properties of moso bamboo (<em>Phyllostachys edulis</em>) subjected to 100-day moist heat cycling aging (MHCA-1: transitioning from low-temperature/high-humidity to high-temperature/low-humidity; MHCA-2: transitioning from low-temperature/low-humidity to high-temperature/high-humidity; CHT: 25 °C-constant temperature and 60% relative humidity) alongside a control group. Employing a multiscale characterization and Random Forest (RF) modeling, we evaluated the impacts of temperature and humidity fluctuations on the bamboo quality, and the influence mechanism of storage conditions on its physical and mechanical properties were elucidated. Results indicated that elevated temperature and humidity led to remarkable fluctuation in bamboo moisture (from −20.36% to 32.99%), weight gain (from −32.69% to 6.19%), and dimensional expansion (from −5.37% to 2.38%). Conversely, high-temperature and low-humidity drying conditions resulted in moisture loss and dimensional shrinkage. Total color difference (TCD) of bamboo cortex followed the order: MHCA-2 (7.46) < CHT (12.24) < MHCA-1 (20.10) < control (22.63). The TCD of bamboo pith positively was related with storage temperature. Periodic moist heat aging induced the permanent deformation in bamboo, reducing its elastic modulus by 30.05%–43.79%. Under moist heat aging conditions, the characteristic hemicellulose functional groups, including hydroxyl (−OH), carbonyl (<em>C</em> = <em>O</em>), ether (C–O–C), and aromatic <em>C</em> = <em>C</em> moieties exhibited remarkable structural modifications, i.e., peak weakening, shifting, or morphological alterations in Fourier transform infrared (FT-IR) spectra. Additionally, these conditions elevated the thermal decomposition onset temperature of cellulose while decreasing its peak intensity. Overall, the RF modeling approach demonstrated a high accuracy in predicting bamboo behavior under varying moisture-heat conditions. It improved bamboo storage and recycling by supporting sorting and grading with reliable long-term data.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"10 4","pages":"Pages 660-675"},"PeriodicalIF":13.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-01DOI: 10.1016/j.jobab.2025.08.004
Fengfan Zhu , Huanhui Zhan , Chenfei Wang , Bo Fu , Jiancheng Zhou
In response to the growing demand for sustainable thermal management solutions, this study developed an eco-friendly flame-retardant aerogel through a green manufacturing process that incorporates bio-derived phosphorylated chitosan (PCS) into a sodium alginate (SA) matrix. The strategic incorporation of PCS, synthesized from renewable chitin resources, significantly enhanced the interfacial compatibility and thermal stability of the composite material while introducing a phosphorus-nitrogen synergistic flame-retardant mechanism. Systematic characterization revealed that the sodium alginate mixed with 30% that mass of phosphorylated chitosan (SA-30 PCS) exhibits exceptional fire safety performance, achieving a limiting oxygen index (LOI) of 33.7% and a V-0 rating in the vertical burning test (Underwriters Laboratories Standard 94), which indicates the highest level of flame resistance. Additionally, this formulation shows a 45% reduction in total heat release compared to pristine SA aerogels. The composite maintains low thermal conductivity (0.035 0 W/(m·K)), fulfilling dual requirements for high-temperature insulation and fire protection. A sustainable hydrophobic modification strategy employing methyltrichlorosilane vapor deposition further endowed the aerogel with moisture resistance. As a wholly biomass-derived system (SA/PCS), the aerogel eliminates persistent toxic residues associated with halogenated flame retardants, while its phosphorus components are covalently bonded in polymeric chains, significantly reducing environmental mobility compared to inorganic phosphates. The inherent biopolymer composition enables potential end-of-life management via enzymatic digestion (e.g., chitinase/alginate lyase), positioning it as an eco-design alternative for sustainable insulation.
为了响应对可持续热管理解决方案日益增长的需求，本研究通过将生物衍生磷酸化壳聚糖（PCS）结合到海藻酸钠（SA）基质中的绿色制造工艺开发了一种环保型阻燃气凝胶。从可再生几丁质资源合成的PCS的战略性加入，显著增强了复合材料的界面相容性和热稳定性，同时引入了磷氮协同阻燃机制。系统表征表明，海藻酸钠与30%质量的磷酸化壳聚糖（sa - 30pcs）混合具有优异的消防安全性能，在垂直燃烧测试中达到了33.7%的极限氧指数（LOI）和V-0等级（Underwriters Laboratories Standard 94），这表明阻燃性最高。此外，与原始SA气凝胶相比，该配方显示总放热减少45%。复合材料保持低导热系数（0.035 0 W/(m·K)），满足高温保温和防火的双重要求。采用甲基三氯硅烷气相沉积的可持续疏水改性策略进一步增强了气凝胶的抗湿性。作为一种完全由生物质衍生的系统（SA/PCS），气凝胶消除了与卤代阻燃剂相关的持久性有毒残留物，而其磷成分在聚合物链中共价结合，与无机磷酸盐相比，显著降低了环境流动性。固有的生物聚合物组成可以通过酶消化（例如几丁质酶/海藻酸解酶）实现潜在的寿命终止管理，将其定位为可持续绝缘的生态设计替代方案。
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Pub Date : 2025-11-01DOI: 10.1016/j.jobab.2025.02.001
Syed Comail Abbas , Amna Alam , Md. Manik Mian , Colleen Walker , Yonghao Ni
The rapid increase in sewage sludge (SS) generation from wastewater treatment plants (WWTPs) has become a pressing global environmental challenge. The SS contains a wide variety of pollutants, including lignocellulose from plants and paper wastes, microplastics (MPs) from plastic wastes, and pharmaceutical residues (PRs), all of which pose substantial risks to ecosystems and human health. To address these waste management issues while also meeting rising energy demands, a shift towards a circular bioeconomy is essential. Hydrothermal liquefaction (HTL) of SS (SS-HTL) presents a sustainable solution by converting waste into renewable biofuels and mitigating environmental hazards. This review addresses five key areas: (1) an in-depth analysis of current advancements in SS-HTL technology; (2) factors influencing bio-oil production; (3) transformation pathways of lignocellulose, MPs, and PRs during HTL; (4) advanced methods for upgrading SS, including chemical, mechanical, and in situ liquefaction techniques; and (5) future perspectives on enhancing SS-HTL technology. Additionally, the review evaluates the potential applications of byproducts like the aqueous (AQ) phase, solid residues (SRs), and gases. By addressing the challenges in SS-HTL research and implementation, this article aims to improve economic feasibility and expand industrial applications. It serves as a valuable resource for researchers and innovators committed to advancing waste management technologies and accelerating the transition to a sustainable circular bioeconomy.
{"title":"Hydrothermal liquefaction of sewage sludge for circular bioeconomy: Focus on lignocellulose wastes, microplastics, and pharmaceuticals","authors":"Syed Comail Abbas , Amna Alam , Md. Manik Mian , Colleen Walker , Yonghao Ni","doi":"10.1016/j.jobab.2025.02.001","DOIUrl":"10.1016/j.jobab.2025.02.001","url":null,"abstract":"<div><div>The rapid increase in sewage sludge (SS) generation from wastewater treatment plants (WWTPs) has become a pressing global environmental challenge. The SS contains a wide variety of pollutants, including lignocellulose from plants and paper wastes, microplastics (MPs) from plastic wastes, and pharmaceutical residues (PRs), all of which pose substantial risks to ecosystems and human health. To address these waste management issues while also meeting rising energy demands, a shift towards a circular bioeconomy is essential. Hydrothermal liquefaction (HTL) of SS (SS-HTL) presents a sustainable solution by converting waste into renewable biofuels and mitigating environmental hazards. This review addresses five key areas: (1) an in-depth analysis of current advancements in SS-HTL technology; (2) factors influencing bio-oil production; (3) transformation pathways of lignocellulose, MPs, and PRs during HTL; (4) advanced methods for upgrading SS, including chemical, mechanical, and in situ liquefaction techniques; and (5) future perspectives on enhancing SS-HTL technology. Additionally, the review evaluates the potential applications of byproducts like the aqueous (AQ) phase, solid residues (SRs), and gases. By addressing the challenges in SS-HTL research and implementation, this article aims to improve economic feasibility and expand industrial applications. It serves as a valuable resource for researchers and innovators committed to advancing waste management technologies and accelerating the transition to a sustainable circular bioeconomy.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"10 4","pages":"Pages 427-459"},"PeriodicalIF":13.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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