Muhammad Fuad Refki , Teta Fathya Widawati , Joko Wintoko , Arief Budiman
{"title":"Integrated kinetic modeling and Latin hypercube sampling-based sensitivity analysis with bio-oil characterization in the pyrolysis of Sargassum sp","authors":"Muhammad Fuad Refki , Teta Fathya Widawati , Joko Wintoko , Arief Budiman","doi":"10.1016/j.biteb.2025.102270","DOIUrl":"10.1016/j.biteb.2025.102270","url":null,"abstract":"<div><div>This study investigates <em>Sargassum</em> sp. pyrolysis kinetics using two competitive lumped kinetic models: <span><span>Di Blasi (1996)</span></span> (Model 1) and <span><span>Farag et al. (2014)</span></span> (Model 2), across varying particle sizes. Sensitivity analysis was assessed using Latin Hypercube Sampling (LHS) and Spearman rank correlation. The results indicate that Model 1 provided a superior fit as reflected by higher R<sup>2</sup> and lower RMSE values. Sensitivity analysis revealed that the most influential parameters in Model 1 were Ea<sub>3</sub> (for 10–40 mesh) and Ea<sub>1</sub> (for 40–70 and 70–100 mesh), whereas in Model 2, Ea<sub>4</sub> (for 10–40 mesh) and Ea<sub>3</sub> (for 40–70 and 70–100 mesh) were most significant. Under ±30 % parameter variation, total error values predominantly remained below 10. A light-phase bio-oil (29.72 MJ/kg) was rich in alcohols, while a heavy-phase bio-oil (2.95 MJ/kg) dominated by carboxylic acids. These findings highlight the strong potential of <em>Sargassum</em>-derived light-phase bio-oil as an alternative to fossil fuels.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"31 ","pages":"Article 102270"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144931570","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}
Marcos Paulo Patta Granado , Antonia Mabrysa Torres Gadelha , Deyvison Souza Rodrigues , Graziella Colato Antonio , Andrea Cressoni De Conti
{"title":"Corrigendum to “Effect of torrefaction on the properties of briquettes produced from agricultural waste” [Bioresour. Technol. Rep. 21 (2023) 101340].","authors":"Marcos Paulo Patta Granado , Antonia Mabrysa Torres Gadelha , Deyvison Souza Rodrigues , Graziella Colato Antonio , Andrea Cressoni De Conti","doi":"10.1016/j.biteb.2025.102294","DOIUrl":"10.1016/j.biteb.2025.102294","url":null,"abstract":"","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"31 ","pages":"Article 102294"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145094821","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}
Gabriela Y. Romero-Zúñiga , Florentino Soriano-Corral , José de Jesús Kú-Herrera , Omar Martinez
{"title":"Improved mechanical properties in laminated epoxy composites reinforced with high-content cellulose microfibrils from banana pseudostems","authors":"Gabriela Y. Romero-Zúñiga , Florentino Soriano-Corral , José de Jesús Kú-Herrera , Omar Martinez","doi":"10.1016/j.biteb.2025.102276","DOIUrl":"10.1016/j.biteb.2025.102276","url":null,"abstract":"<div><div>The development of high-performance structural hybrid polymeric biocomposites using agricultural waste as reinforcement is driving progress toward a more sustainable industry. In this study, cellulose microfibrils (CMFs) were extracted from banana pseudostem residues using a rapid and eco-friendly microwave-assisted method. The extracted CMFs exhibited a high crystallinity index (92 %), thermal stability above 349 °C, and diameters ranging from 7 to 13 μm.</div><div>These CMFs were incorporated at 60 wt% into laminated epoxy composites using a vacuum-assisted resin transfer molding (VARTM) process. Diglycidyl ether of bisphenol A (BADGE), a commercially available epoxy resin, was used as the matrix. Unlike conventional systems that rely on commercial woven fiber mats, the non-woven CMFs were successfully integrated without agglomeration or structural defects. The resulting composites showed a 63 % increase in Young's modulus (from 893 to 1456 MPa) and a 57 % improvement in tensile strength (from 32.4 to 51.04 MPa) compared to neat epoxy resin. Dynamic mechanical analysis revealed increases in storage and loss moduli and a broadened tan δ peak, indicating enhanced energy dissipation over a wide temperature range. Differential scanning calorimetry confirmed the presence of a sharp exothermic transition associated with the glass transition temperature. SEM analysis revealed uniform dispersion of CMFs and strong interfacial adhesion with the matrix.</div><div>Despite the high CMF content, the composite retained the low density characteristic of epoxy systems and exhibited increased water retention due to the polar nature of the reinforcement. This strategy offers a technically and environmentally viable route for converting agricultural residues into lightweight structural composites. The developed materials align with circular economy and green chemistry principles and show strong potential for applications in the automotive, construction, marine, and technical manufacturing sectors.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"31 ","pages":"Article 102276"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144932320","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}
Candra Wijaya , Ningsi Lick Sangadji , Maktum Muharja , Tri Widjaja , Lieke Riadi , Elaine Elaine , Raymond Lau , Arief Widjaja
{"title":"Prediction by a modified severity factor in FeCl₃-catalyzed hydrothermal fractionation of coconut husk: Enhancing hemicellulose hydrolysis and enzymatic digestibility of cellulose","authors":"Candra Wijaya , Ningsi Lick Sangadji , Maktum Muharja , Tri Widjaja , Lieke Riadi , Elaine Elaine , Raymond Lau , Arief Widjaja","doi":"10.1016/j.biteb.2025.102282","DOIUrl":"10.1016/j.biteb.2025.102282","url":null,"abstract":"<div><div>Hydrothermal pretreatment (HTP) is essential for producing valuable hemicellulosic sugars and enhancing the enzymatic digestibility of lignocellulosic biomass for biofuel and biochemical production. However, conventional methods are often limited by high energy demands and low sugar yields. This study explores the catalytic role of ferric chloride (FeCl₃) as a less corrosive, high-catalytic activity, and cost-effective alternative to inorganic acids in the HTP of coconut husk (CCH), with the goal of improving hemicellulose hydrolysis and subsequent enzymatic conversion. The pretreatment was carried out at 120–180 °C with FeCl₃ concentrations ranging from 20 to 100 mM. A mathematically derived Combined Hydrolysis Factor (CHF) was applied to unify pretreatment conditions and correlate them with xylan hydrolysis, hemicellulosic sugar yield, compositional changes in CCH, and improvements in enzymatic digestibility. The results showed that FeCl₃-HTP enabled substantial to near-complete hemicellulose removal, exhibited a strong correlation between xylan removal and xylose release, and significantly enhanced enzymatic digestibility, as confirmed by XRD, SEM, and FTIR analyses. Mass balance analysis identified the optimal condition at 150 °C and 60 mM FeCl₃, yielding 22.04 g of total sugar per 100 g of raw CCH, 5.34 times higher than the yield from non-catalyzed pretreatment at the same temperature. These findings confirm the effectiveness of FeCl₃ as catalytic agent and establish CHF as a reliable predictive parameter for optimizing sugar recovery in scalable biomass conversion processes, highlighting its potential applicability to other lignocellulosic biomass as transferrable parameter under similar catalytic system, such as oil palm empty fruit bunches, for high-value bioproduct production.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"31 ","pages":"Article 102282"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004107","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}
{"title":"Catalytic co-pyrolysis of groundnut de-oiled cake for sustainable production of nitrile, aromatic, and hydrocarbon-enriched pyrolytic oil","authors":"Ranjita Singh , Nandana Chakinala , Himanshi Sharma , Kaustubha Mohanty , Anand G. Chakinala","doi":"10.1016/j.biteb.2025.102287","DOIUrl":"10.1016/j.biteb.2025.102287","url":null,"abstract":"<div><div>Catalytic co-pyrolysis of groundnut de-oiled cake (GNOC) with high-density polyethylene (HDPE), low-density polyethylene (LDPE), and waste polycarbonate (P) was studied to optimize pyrolytic oil yield and composition. The effects of temperature, catalyst, and biomass-to-plastic ratios (90:10, 80:20, 70:30) were studied in the presence of molecular sieves (MS) catalyst. Under non-catalytic conditions, lower yields of pyrolytic oil, ∼28 wt%, were obtained. Whereas catalytic pyrolysis enhanced the yields up to ∼40 wt%, and enriched the oil with nitriles, amides, hydrocarbons, and aromatics. Catalytic co-pyrolysis at a 70:30 GNOC-to-LDPE/HDPE ratio produced ∼95% aromatics and ∼85% hydrocarbons in the pyrolytic oil, demonstrating synergistic degradation behavior. Carbon number analysis showed that LDPE favored the synthesis of C<sub>6</sub>-C<sub>10</sub> hydrocarbons, HDPE extended up to C<sub>20</sub>, and P contributed to heavier fractions > C<sub>20</sub>. These findings demonstrate the potential of catalytic co-pyrolysis of GNOC with various plastics and an MS catalyst to produce high-quality, fuel and valuable chemical-rich pyrolytic oils.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"31 ","pages":"Article 102287"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145044385","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}
{"title":"Enhanced antibiotic removal by anaerobic co-digestion in an Expanded Granular Sludge Bed (EGSB) reactor treating real pharmaceutical wastewater: From lab-scale to pilot-plant application","authors":"Hanny Vistanty , Budiyono , Mochamad Arief Budihardjo , Rizal Awaludin Malik , Aris Mukimin , Nanik Indah Setianingsih","doi":"10.1016/j.biteb.2025.102286","DOIUrl":"10.1016/j.biteb.2025.102286","url":null,"abstract":"<div><div>Antibiotics are becoming one of the most detected pollutants in water and wastewater, indicating a risk to both the aquatic ecosystem and human health. In this study, a highly biodegradable honey wastewater (HWW) was used as a co-substrate and supplemented in an expanded granular sludge bed (EGSB) reactor to enhance the treatment of real pharmaceutical wastewater containing amoxicillin (AMX) and erythromycin (ERY). The results showed a significant improvement in AMX and ERY removal, increasing from 60 % and 68 % to 78 % and 72 %, respectively, with enhanced reaction rate constants (<em>k</em>) of 0.27 and 0.24. Similarly, COD removal was markedly improved from 83 % to 89 %, while methane yield increased by 42.11 % in anaerobic co-digestion (AcoD) compared to monodigestion. Despite the advantages of HWW, overly high organic loading (2.5 mL/L) resulted in an unstable system, as indicated by the TVFA/alkalinity ratio of 0.87 ± 0.08, due to propionate accumulation. The application in a pilot-scale system demonstrated satisfactory performance, with effluent quality meeting the standards set by local regulations. This study demonstrates the potential of AcoD using highly biodegradable wastewater as a feasible and economical process, with an operational cost of 0.18 USD/m<sup>3</sup>, which is significantly lower than that of a complex system.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"31 ","pages":"Article 102286"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004105","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}
{"title":"Development of a novel amperometric biosensor utilising Chlorella sp. for determination of organophosphorus pesticides","authors":"Baneesh Patial , Manisha Pabbi , Shreya Gupta , Susheel K. Mittal , Ajay Bansal , Renu Gupta","doi":"10.1016/j.biteb.2025.102278","DOIUrl":"10.1016/j.biteb.2025.102278","url":null,"abstract":"<div><div>Organophosphorus pesticides (OPs) are extensively used in agriculture and pose serious environmental and human health risks. This study presents a novel amperometric biosensor incorporating <em>Chlorella</em> sp., a photosynthetic microalga, to detect OPs based on their inhibitory interaction with Photosystem II (PS II). The biosensor was investigated in both suspended and immobilized configurations using chronoamperometric techniques. Optimization studies revealed maximum current response at 0.3 mL algal suspension and 25 μL immobilized cell volume, both at pH 7. The suspended biosensor exhibited opposite current trends for the two pesticides: a decrease in current for acephate and an increase for triazophos, both over a linear range of 10<sup>−8</sup> to 10<sup>−2</sup> M. After immobilization via glutaraldehyde cross-linking on glassy carbon electrodes, both analytes showed consistent decreases in current, with linear detection ranges of 10<sup>−7</sup> to 10<sup>−2</sup> M for acephate and 10<sup>−9</sup> to 10<sup>−2</sup> M for triazophos. These differences underscore the impact of immobilization on analyte-specific response patterns. This work demonstrates the potential of <em>Chlorella</em> sp. as a sustainable, enzyme-free biosensing element for OP detection and highlights the value of PS II-based biosensing in environmental monitoring applications. The dual-configuration approach and analyte-dependent trends offer insights into algal-electrode interactions, providing a foundation for future research toward real-sample validation and portable sensor development.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"31 ","pages":"Article 102278"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144932321","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}
{"title":"Ethanol production from non-sterile methane fermentation residues for waste-to-biofuel conversion","authors":"Ayumi Tanimura , Noriko Kakuzawa , Kohei Obase , Takayuki Tojo , Tomoki Hirobe , Ryota Kikuchi , Koyo Norinaga","doi":"10.1016/j.biteb.2025.102285","DOIUrl":"10.1016/j.biteb.2025.102285","url":null,"abstract":"<div><div>Effective valorization of food waste is essential for sustainable resource management. Methane fermentation residues, a byproduct of biogas production from food waste, are typically used as liquid fertilizer. However, their full potential as bioresource substrates remains underexplored. This study investigated the feasibility of producing bioethanol from non-sterile methane fermentation residues mixed with beverage waste under realistic, low-input conditions. Four sucrose-fermenting yeast strains were evaluated for ethanol production in a non-sterile medium composed of residue and deteriorated beverage (1:1, <em>v</em>/<em>v</em>). Ethanol was detected only under the non-sterile condition, not in filter-sterilized controls, suggesting that native microbial populations did not inhibit—and may have enhanced—fermentation. <em>Saccharomyces pastorianus</em> NBRC 11024<sup>T</sup> achieved the highest ethanol yield (27.4 g/L), reaching 89.4 % of the theoretical maximum within 48 h. Fermentation efficiency declined when the residue ratio exceeded 70 %, indicating possible inhibition due to nitrogen or volatile fatty acid accumulation. 16S rRNA amplicon sequencing revealed a marked shift in microbial community structure, with <em>Leuconostoc</em> species dominating at later stages. These findings suggest that methane fermentation residues can be used as functional co-substrates for ethanol production and may actively contribute to favorable fermentation conditions. In addition, commercially available beverages were shown to be a suitable model for waste beverages and provided practical insights into real-world applications. This approach offers a scalable, decentralized strategy for low-cost ethanol production and contributes to the development of circular bioresource systems.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"31 ","pages":"Article 102285"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145044382","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}
Karen Giacobe, Vanessa R. do Nascimento, Paola A. Mello, Cezar A. Bizzi
{"title":"A simple and fast ultrasound-assisted treatment for demineralization of sugarcane bagasse","authors":"Karen Giacobe, Vanessa R. do Nascimento, Paola A. Mello, Cezar A. Bizzi","doi":"10.1016/j.biteb.2025.102283","DOIUrl":"10.1016/j.biteb.2025.102283","url":null,"abstract":"<div><div>Demineralization using ultrasonic energy was evaluated to remove the inorganic fraction of sugarcane bagasse. To evaluate the efficiency of the proposed ultrasound-assisted approach, the inorganic fraction (alkaline and alkaline earth metals and other elements - Al, Ba, Ca, Cu, Fe, K, Mg, Mn, Na, P, Sr, and Zn) was monitored in the biomass. The proposed process was developed by evaluating the extracting medium, feedstock amount, acoustic frequency, acoustic amplitude, process temperature and process time. The most efficient condition for the inorganic fraction removal (45 kHz, 70 % amplitude, 1 mol L<sup>−1</sup> of H<sub>2</sub>SO<sub>4</sub>, 50 °C for 30 min) allowed a demineralization efficiency of approximately 100 % (25 g of feedstock). The main feature of this work is related to the capability of this energy source for speeding up the process, which was 90 % efficient since the first minute of treatment, associated with relatively mild operational conditions of pressure and temperature.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"31 ","pages":"Article 102283"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145044383","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}