Biomass & Bioenergy最新文献

{"title":"Mechanical size reduction and microwave expansion pretreatment of bagasse enhances hemicellulose extraction yield to approach that of sugarcane pith","authors":"Gaoyan Li,&nbsp;Jizhen Huang,&nbsp;Changrong Shi,&nbsp;Kai Li,&nbsp;Liangliang An,&nbsp;Chaoqiang Xue,&nbsp;Yuxin Liu","doi":"10.1016/j.biombioe.2025.107962","DOIUrl":"10.1016/j.biombioe.2025.107962","url":null,"abstract":"<div><div>Bagasse, the primary by-product of sugarcane processing, comprises both bagasse and bagasse pith. However, in industrial applications, bagasse pith is typically discarded as waste. In this study, hemicellulose was extracted from bagasse, bagasse powder, and bagasse pith to investigate the differences in solubility between fibroblast and heteroblast hemicellulose. At a temperature of 94 °C and a duration of 60 min, the yield of hemicellulose extracted from bagasse pith was found to be 52.7 %. This yield is approximately 2 times higher than that obtained from bagasse and about 1.4 times greater than that derived from bagasse powder. The scanning electron microscopy (SEM) image of the raw material indicated a shorter solubilization pathway and lower resistance of hemicellulose within heterocytes. The yield of hemicellulose extracted from bagasse pith after microwave expansion was found to be 70.1 %, representing a significant increase of 33.8 % compared to that obtained from unexpanded raw material. This indicates that the dissolution efficiency of hemicellulose has been effectively enhanced through the application of microwave expansion. The dissolution activation energies for hemicellulose derived from expanded bagasse, bagasse powder, and pith were measured at 14.9 kJ mol⁻¹, 13.3 kJ mol⁻¹, and 7.1 kJ mol⁻¹, respectively. These values reflect reductions of 31.7 %, 30.0 %, and 49.3 % when compared to those associated with their unexpanded counterparts. This process enhances the extraction of hemicellulose from the pith and further advances the utilization of pith within the overall biomass component.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107962"},"PeriodicalIF":5.8,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143912430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microbial fuel cell as a green technology for sludge oxidation and abiotic nitrate reduction: Integration of Taguchi-multi criteria decision method","authors":"Nevim Genç,&nbsp;Elif Durna Pi̇şki̇n,&nbsp;Merve Türk","doi":"10.1016/j.biombioe.2025.107955","DOIUrl":"10.1016/j.biombioe.2025.107955","url":null,"abstract":"<div><div>Utilizing waste in the field of energy production is essential for sustainable waste management. Microbial fuel cell (MFC) has become a clean technology with its ability to treat pollutants with reduction/oxidation characteristics and simultaneously produce energy. In this study, the oxidation of dairy processing industry waste activated sludge and abiotic reduction of nitrate were optimized simultaneously with electricity generation in an MFC by multiple response Taguchi experimental design. The experimental results were optimized for coulombic efficiency (CE), total chemical oxygen demand (TCOD), maximum power density and nitrate removal responses, and three different optimum experimental conditions were obtained according to desirability. The most suitable alternative optimum condition was determined by the PROMETHEE approach. Thermal-acidic pretreatment of the sludge, use of carbon felt/Pt-coated carbon cloth as the anode/cathode electrode and 6.5 × 10⁻⁶ mmol/L methylene blue with NO₃⁻ were determined as the optimum conditions. Under these conditions, the CE, maximum power density, TCOD, and nitrate removal were obtained as 0.72 %, 81.50 mW/m², 24.5 %, and 11 %, respectively. With the optimization in which the maximum power density and CE responses were maximized, a power density of 121 mW/m² and a CE of 1.55 % were obtained.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107955"},"PeriodicalIF":5.8,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143912515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization of wheat straw liquefaction conditions and phy-chemical characterization of liquefied products","authors":"Zhan Ding ,&nbsp;Linyu An ,&nbsp;Min Yang ,&nbsp;Hangbo Liu ,&nbsp;Chenxi Tian ,&nbsp;Fengkai Liu ,&nbsp;Peilong Li","doi":"10.1016/j.biombioe.2025.107951","DOIUrl":"10.1016/j.biombioe.2025.107951","url":null,"abstract":"<div><div>Crop straw represents a significant biomass resource as an agricultural byproduct. It is essential to enhance the utilization value of crop straw through effective treatment strategies in addressing contemporary challenges such as environmental pollution and energy scarcity. This investigation employs organic liquefying solvents the liquefaction of straw using 98 % concentrated sulfuric acid as a catalyst. The Box-Behnken response surface methodology was utilized to evaluate the individual and interactive effects of the solid-liquid ratio, catalyst dosage, liquefaction time, and temperature on liquefaction yield. A comprehensive analysis of the mathematical model was conducted, and the straw was fractionated into its main components such as cellulose and lignin for comparative analysis under identical liquefaction conditions; The results showed that the liquefaction rate of straw mainly depended on the liquefaction rate of cellulose, and its liquefaction reaction was complex, with a reaction kinetic level of 1.71. The physicochemical properties of the liquefaction products were analyzed using Fourier Transform Infrared Spectroscopy (FTIR), Gel Permeation Chromatography (GPC), Thermogravimetric Analysis (TG), and Rotational Viscosity (RV) tests. The optimal liquefaction conditions were identified as a solid-liquid ratio of 1:4, a catalyst dosage of 2.5 %, a temperature of 140 °C, and a duration of 90 min, the obtained liquefaction products have non-Newtonian fluid properties. The liquefaction process, involving hydrolysis, degradation, and condensation reactions, produces distinct products at various stages. The thermal stability of the straw liquefaction products was superior to that of lignin but slightly inferior to cellulose. The liquefaction products were rich in carbonyl compounds, phenolic compounds, and functional groups such as hydroxyl, carbonyl, and aromatic rings. The molecular weight distribution coefficients of them were from 1.3 to 1.5, which indicates a good potential for further industrial processing.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107951"},"PeriodicalIF":5.8,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green synthesis of durian shell-derived activated carbon with enhanced carboxylic functionalization and graphitization via gamma irradiation in ethanol and ethylene glycol for supercapacitor applications","authors":"Phonpimon Numee ,&nbsp;Tanagorn Sangtawesin ,&nbsp;Akmal Hadi Ma'Radzi ,&nbsp;Kotchaphan Kanjana","doi":"10.1016/j.biombioe.2025.107945","DOIUrl":"10.1016/j.biombioe.2025.107945","url":null,"abstract":"<div><div>This study investigates the synthesis of durian shell-derived activated carbon (AC) with enhanced carboxylic functionalization and graphitization using a green approach, gamma irradiation in ethanol (Et) and ethylene glycol (EG) scavengers. The surface chemistry through X-ray photoelectron spectroscopy (XPS) revealed an increase in –COOH groups upon irradiation in both scavengers. Fourier transform infrared (FTIR) spectroscopy further confirmed the presence of the oxygenated functional groups, supporting the XPS data. Field emission scanning electron microscope (FESEM) analysis highlighted scavenger-specific morphological differences. N₂ adsorption-desorption and <em>S</em>_<em>BET</em> measurements clearly indicated the effects of dose and scavenger type on the textural properties of the materials, showing the maximum specific surface area of 1271.4 m² g⁻¹ after irradiation. Raman spectroscopy and X-ray diffraction (XRD) analysis indicated high graphitization (I_D/I_G ∼ 0.84–0.85), unaffected by irradiation dose or scavenger type, suggesting that EG and Et can highly enhance graphitization compared to other scavenging systems. Electrochemical tests based on cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS) demonstrated that the development of –COOH groups significantly enhanced charge storage capacity providing the highest specific capacitance of 266.7 F g⁻¹ with reduced internal resistance. The results emphasized the synergistic effects of radiation dose and scavenger type on the AC properties, enhancing its performance for supercapacitor applications.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107945"},"PeriodicalIF":5.8,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143912513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Formation of soluble organics and sugar degradation byproduct during hot compressed water pre-treatment of empty fruit bunch for biogas production","authors":"Adila Fazliyana Aili Hamzah ,&nbsp;Muhammad Hazwan Hamzah ,&nbsp;Khairudin Nurulhuda ,&nbsp;Hasfalina Che Man ,&nbsp;Muhammad Heikal Ismail ,&nbsp;Pau Loke Show","doi":"10.1016/j.biombioe.2025.107960","DOIUrl":"10.1016/j.biombioe.2025.107960","url":null,"abstract":"<div><div>To assess the potential for improvements in soluble organics formation, biogas production, and inhibitory effects resulting from the concurrent generation of furan byproducts, palm oil empty fruit bunches (EFB) were subjected to hot compressed water (HCW) treatment at high temperatures and extended reaction times. The application of HCW pre-treatment at temperatures ranging from 180 °C to 220 °C for 5–60 min was found to greatly enhance the formation of soluble organic compounds and furan derivatives derived from EFB. However, only the pre-treatment carried out at 180 °C for a duration of 15 min led to a significantly greater biogas yield of 710.45 mL CH₄/gVS. Biogas yields decreased under severe pre-treatment conditions (200–220 °C), likely due to the inhibitory effects of furfural and 5-hydroxymethylfurfural (5-HMF). Then, a co-digestion system was simulated to assess the inhibitory impact of furfural and 5-HMF on biogas production. Kinetic inhibition models were used to determine the threshold at which these substances became inhibitory. Furfural and 5-HMF's inhibitory threshold was found to be 2000 mg/L. The Haldane model proved to be the most suitable for simulating the inhibitory effect of furfural, whereas the Aiba model was well-suited for simulating the impact of 5-HMF in the anaerobic co-digestion process. The current study novelty lies in identifying the limitation of HCW pre-treatment for biogas production. By elucidating the inhibitory effect of furan derivatives, it provides clear guidance for mitigating the inhibition caused by furfural and 5-HMF.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107960"},"PeriodicalIF":5.8,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143912429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of gamma radiation as pretreatment of rice for bioethanol production: Inhibition of inhibitors","authors":"Chaturbhuj K. Saurabh ,&nbsp;Bhaskar Sanyal ,&nbsp;V. Prakasan ,&nbsp;S. Gautam","doi":"10.1016/j.biombioe.2025.107954","DOIUrl":"10.1016/j.biombioe.2025.107954","url":null,"abstract":"<div><div>Gelatinized rice solution was pretreated with gamma radiation followed by α–amylase and glucoamylase to release free sugar for bioethanol production. 86 % (w/w) of rice carbohydrates converted into fermentable sugar at a dose of 2 kGy plus incubation of 3 h with 5 U (per g of rice) of each enzyme at 55 °C. However, during fermentation by employing <em>Saccharomyces cerevisiae</em> var. <em>bayanus</em>, it was observed that sugar consumption, ethanol yield, and residual sugar were 41 %, 37 %, and 43 %, respectively. Obtained poor fermentability was due to the dose dependent increase in concentration of carboxylic acids like lactic acid, succinic acid, etc. Metals ions catalyzed the biomass conversion into carboxylic acids, a class of fermentation inhibitors. Thus, naturally present Mg, Ca, and K ions in rice samples were precipitated at pH 9 before irradiation. 61 % of Mg, 30 % of Ca, and 19 % of K were precipitated in alkaline medium. This further resulted in 45 % (w/w) less formation of carboxylic acids when samples were irradiated to 2 kGy at pH 9. However, the amount of free sugar released during pretreatment remained unaffected by the change in pH. Inevitably, the overall fermentability at pH 5 of the optimized pretreated sample was improved to 84 %, 81 %, and 3 % for sugar consumption, ethanol yield, and residual sugar, respectively. In the present study, the synthesis of fermentation inhibitors during radiation processing was successfully inhibited by precipitating metal ions in alkaline conditions is shown for the first time.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107954"},"PeriodicalIF":5.8,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143912514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing dilute sulfuric acid thermohydrolysis of dried food waste using the desirability function to produce a fermentation-friendly hydrolysate for biohydrogen production","authors":"Julkipli Julkipli,&nbsp;Sandhya Babel","doi":"10.1016/j.biombioe.2025.107922","DOIUrl":"10.1016/j.biombioe.2025.107922","url":null,"abstract":"<div><div>This study optimized dilute sulfuric acid thermo-hydrolysis of dried food waste (FW). Key hydrolysis factors were systematically varied, such as acid concentration, solution-to-solid ratio, oil solidifier addition, agitation, temperature, and reaction time. Multi-objective optimization was employed to maximize reducing sugar yield while minimizing the formation of inhibitory compounds, 5-hydroxymethylfurfural (HMF) and furfural, in the hydrolysate. A two-step optimization approach was used: screening experiments to identify active factors and numerical optimization of a desirability function in Design-Expert 13.0 to find optimal factor configurations in order to achieve the desired objective values. The optimal factor configurations (1.53 % H₂SO₄, 6 mL H₂SO₄/g dried FW, 1.49 g oil solidifier, 0 rpm, 80 °C, 60 min) achieved a composite desirability value of 0.80, yielding hydrolysate with 35.43 g/L reducing sugars, 0.14 g/L HMF, and 0.55 g/L furfural, with prediction errors below 10 %. The hydrolysate also had proteins (2.65 g/L), NaCl (0.30 g/L), and metals (Mg, Zn, Fe, Cu, Mn, Mo, Ni, Co) in beneficial amounts, while Cr and Cd remained within safe levels. These findings advance FW valorization by producing a fermentation-friendly hydrolysate for sustainable biohydrogen generation.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107922"},"PeriodicalIF":5.8,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insights into thermokinetic study of plasma treated rice straw using thermogravimetric analysis","authors":"Abhishek Kumar ,&nbsp;Sandip Gangil ,&nbsp;Vinod Kumar Bhargav ,&nbsp;Parmanand Sahu","doi":"10.1016/j.biombioe.2025.107944","DOIUrl":"10.1016/j.biombioe.2025.107944","url":null,"abstract":"<div><div>This study provides the first in-depth investigation of the effects of cold plasma treatment on rice straw, utilizing TGA curves, Gaussian deconvolution (Hemicellulose, Cellulose, and Lignin), Kinetics and Thermodynamics (Activation energy, Pre-exponential factor, Gibbs free energy, Enthalpy, Potential barrier gap, and Entropy) through model-free iso-conversional methods (FWO and KAS), Master plot analysis for reaction mechanism determination (Criado method), Adsorption parameters (BET isotherm, Surface area, Pore volume, Methylene Blue value, Iodine number), HR FESEM imaging, and FTIR analysis. DTG analysis revealed reduced hemicellulose and increased lignin content after plasma treatment. The highest values for Ea, A, ΔH and ΔS occurred at <em>α</em> = 0.6, while ΔG showed the lowest value at α = 0.6 for both, untreated rice straw (RS) and plasma treated rice straw (PRS) samples. PRS exhibited lower ΔG values at all conversion levels as compared to RS. BET results confirmed increased surface area and pore volume, with a dramatic rise in iodine number, indicating enhanced micro porosity due to plasma treatment. FESEM imaging showed well-formed pores on PRS surfaces, while FTIR revealed reduced peak intensities and functional groups such as hydroxyl, amino, and carbonyl groups were present. This study highlights cold plasma treatment as a promising technology for effective rice straw treatment and provides valuable insights for designing scalable reactors for manufacturing high quality adsorbents for various applications.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143903558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of compound probiotics on chemical composition, antioxidant activity, and microbiota community structure in Co-fermentation of Zanthoxylum bungeanum maxim leaves and Distille's grains","authors":"Yu Zeng,&nbsp;Xiaopeng Zhang,&nbsp;Yue Qiu,&nbsp;Longxiao Qin,&nbsp;Jianfei Zhao,&nbsp;Jingbo Liu","doi":"10.1016/j.biombioe.2025.107957","DOIUrl":"10.1016/j.biombioe.2025.107957","url":null,"abstract":"","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107957"},"PeriodicalIF":5.8,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143903417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Utilizing rice husk for sustainable production of mesoporous titania nanocomposites with highly adsorption and photocatalysis","authors":"Tzong-Horng Liou ,&nbsp;Sheng-Yeh Wang","doi":"10.1016/j.biombioe.2025.107950","DOIUrl":"10.1016/j.biombioe.2025.107950","url":null,"abstract":"<div><div>Rice husks are a lignocellulosic biowaste that can be used to produce valuable renewable energy. However, combustion of rice husks produces rice husk ash. Rice husk ash should be effectively utilized to reduce environmental pollution and create a circular economy. In the study, rice husk ash was employed to extract silica for the preparation of mesoporous Santa Barbara Amorphous-15 (RH-SBA-15) materials, and a titanium precursor was then added to obtain a TiO₂/RH-SBA-15 photocatalyst. X-ray diffraction and transmission electron microscopy confirmed that mesostructure of silica inhibits TiO₂ grain growth and is conducive to the generation of anatase-phase TiO₂. Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy confirmed that Ti–O–Si bonds are generated during synthesis of catalyst. A photodegradation experiment was conducted using methyl orange for near-ultraviolet light tests. RH-SBA-15 provides many adsorption sites, thereby improving photoactivity of TiO₂. The photocatalytic efficiency of catalyst increases with an increase of initial dye concentration, catalyst mass, and calcination temperature but decreases with an increase in the pH of dye solution. The optimal catalysis conditions are initial dye concentration of 50 ppm, catalyst weight of 200 mg, solution pH value of 2, calcination temperature of 800 °C, and TiO₂ ratio of 30 %. The photocatalytic mechanism was elucidated through kinetic analysis and a free-radical-scavenging test. Recycling of rice husk ash to produce high-value-added mesoporous photocatalysts can help to address environmental pollution problems such as those related to agricultural waste storage and wastewater treatment.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"199 ","pages":"Article 107950"},"PeriodicalIF":5.8,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143901926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}