Ewelina Sobolewska, Sebastian Borowski, Hanna Poźniak, Natalia Niedzbała, Izabela Michalak
{"title":"The Use of Biochar to Improve Anaerobic Digestion and Dewatering Properties of Kitchen Waste","authors":"Ewelina Sobolewska, Sebastian Borowski, Hanna Poźniak, Natalia Niedzbała, Izabela Michalak","doi":"10.1007/s12155-026-11002-6","DOIUrl":"10.1007/s12155-026-11002-6","url":null,"abstract":"<div><p>This study investigated the impact of biochar on the semi-continuous anaerobic thermophilic digestion of kitchen waste and subsequent dewaterability of the digestate. Two biochar types were prepared from banana peels (BBP biochar) and spent coffee grounds (BCG biochar), and then applied as additive materials. Both biochars increased the production of methane from kitchen waste with the maximum yield of nearly 400 L<sub>CH4</sub>/kgVS. However, stable digestion performance was only achieved using BBP, which was characterized by lower hydrophobicity and greater polarity than BCG. Furthermore, the digestate from the experiment with BBP displayed much better dewatering properties, as evidenced by much lower capillary suction time (CST) than the values reported in the BCG and control processes. The digestate dewaterability was further improved by using cationic flocculant and inorganic coagulants for conditioning with the most effective iron-based PIX113, which efficiently clarified supernatant. In conclusion, it has been documented that biochar added to kitchen waste before digestion not only increased biogas production but also improved the digestate dewaterability, however, the effect was dependent on the origin and properties of this supplement.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"19 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimization of Ultrasound Pretreatment Applications in Biogas Production from Microalgae with the Taguchi Approach","authors":"Ayşenur Çınar, Ebru Koca Akkaya","doi":"10.1007/s12155-026-10992-7","DOIUrl":"10.1007/s12155-026-10992-7","url":null,"abstract":"<div><p>This study applied ultrasonic pretreatment to improve biogas production from microalgal biomass and to optimize this process using the Taguchi method. In the ultrasonic pretreatment applied to mixed microalgal biomass cultivated in animal wastewater, the variables of power (40–100%), time (75–600s), and solid concentration (0.5–3%) were evaluated. To evaluate the effect of the pretreatment on disruption of the algae cells, the percentage of disintegration was calculated, and biogas production potential of the biomass was measured using biochemical methane potential tests. The calculated signal-to-noise ratio revealed that solid concentration was the significant factor affecting the process, yielding a maximum cell rupture of 34% at the lowest concentration (0.5%). ANOVA analysis of the S/N ratio revealed that the solid concentration was the most significant factor, contributing 53.47% to the microalgal biomass’s ultrasonic disintegration, a finding supported by the model’s high R<sup>2</sup> value of 0.93. Compared to control samples, the highest biogas production potential increased by 3, 2.75, 2.75, and 1.78 times under the conditions of US-4 (100%, 600s, 0.5%) , US-8 (100%, 300s, 1%), US-10 (60%, 600s, 2%), US-13 (40%, 600s, 3%), respectively. Kinetic modeling based on first order kinetics demonstrated a high correlation (R<sup>2</sup> ranging from 0.85 to 0.99) with the experimental data, confirming that ultrasound pretreatment significantly enhanced the hydrolysis rate constant and accelerated biogas production. Energy efficiency calculations (E<sub>out</sub>/E<sub>in</sub>) demonstrated an inverse relationship with exposure time. These findings suggest that ultrasound enhances biogas yield, and shorter treatment times are essential to achieve a positive net energy balance.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"19 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
José García-Béjar, Magdiel Láinez, Guillermo Flores-Cosío, Lorena Amaya-Delgado
{"title":"Bioprospecting of Thermotolerant Kluyveromyces marxianus Strains for Ethanol Production using High-Solids Agave tequilana Bagasse Hydrolysate","authors":"José García-Béjar, Magdiel Láinez, Guillermo Flores-Cosío, Lorena Amaya-Delgado","doi":"10.1007/s12155-026-10993-6","DOIUrl":"10.1007/s12155-026-10993-6","url":null,"abstract":"<div><p>Lignocellulosic ethanol is one of the most promising energy alternatives, which is produced employing agro-industrial wastes, such as <i>Agave tequilana</i> bagasse (ATB), an important agro-waste in Mexico generated during the agave fructans and tequila production. However, reaching high ethanol productivity from ATB requires outstanding microorganisms tolerating stressful fermentation conditions. This work evaluated the fermentative capacity of nine <i>Kluyveromyces marxianus</i> strains isolated from artisanal fermentation of mezcal, another emblematic Mexican beverage. The <i>K. marxianus</i> yeasts fermentative performance was assessed in high ATB loading enzymatic hydrolysates (20% w v<sup>− 1</sup>), a medium with high concentrations of organic acids, furan aldehydes, phenolic compounds, as well as high solids concentration. The results showed variations in the fermentative capacities, sugar consumption rate, ethanol productivity, and ethanol yield of <i>K. marxianus</i> strains during ethanol production at 35, 38, 40, and 43 °C. The maximum ethanol productivity observed was 1.94 ± 0.14 g L<sup>− 1</sup> h<sup>− 1</sup> by the <i>K. marxianus</i> SLP1 strain at 38 °C; conversely, the lowest productivity of 0.07 ± 0.00 g L<sup>− 1</sup> h<sup>− 1</sup> was detected with the strain <i>K. marxianus</i> OFF1 at 35 °C. Likewise, substantial differences were observed in the production profiles of volatile compounds such as acetaldehyde and isobutanol. According to the results, <i>K. marxianus</i> is a promising alternative for lignocellulosic ethanol production from ATB under high-solid loading and elevated temperature conditions.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"19 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147642982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lina Mariana Rodríguez–Jiménez, Andrea Pérez–Vidal, Patricia Torres–Lozada
{"title":"Psychrophilic and Mesophilic Anaerobic Digestion of Food Waste: Influence of the Rheological Properties of the Substrate and Inoculum","authors":"Lina Mariana Rodríguez–Jiménez, Andrea Pérez–Vidal, Patricia Torres–Lozada","doi":"10.1007/s12155-025-10929-6","DOIUrl":"10.1007/s12155-025-10929-6","url":null,"abstract":"<div>\u0000 \u0000 <p>Rheological properties, such as apparent viscosity (μ) and consistency index (K), of food waste (FW), inoculum, and substrate/inoculum (S/I) mixtures play a critical role in anaerobic digestion (FW–AD). At psychrophilic temperatures (< 20 °C), μ and K increase, limiting mass transfer and reducing methane yield. This study analyzes the influence of μ and K on FW–AD at 10, 15, and 27 °C with different particle sizes (PS1: 11 – 8 mm; PS2: 8 – 6 mm; PS3: 6 – 4 mm; PS4: 2 – 1 mm). Rheological properties were evaluated for substrate/inoculum ratios (S/I: 0.20, 0.30, 0.40, 0.50 gVS<sub>substrate</sub>·gVS<sub>inoculum</sub><sup>–1</sup>) at the start and end of biochemical methane potential (BMP) tests (days 0 and 60). The lowest μ and K values were at 27 °C with PS2, while within the psychrophilic range, the best performance occurred at 15 °C (PS2).”. Inoculum’s μ and K were lower than FW, indicating that inoculum properties had a greater influence on rheology at lower S/I ratios (0.20; 0.30), whereas substrate rheology dominated at higher S/I ratios (0.40; 0.50). Statistical analysis indicated S/I had the greatest effect on BMP (54%), followed by temperature (28%), while particle size and K contributed minimally (< 1%). K increased proportionally with S/I, which was also the main factor affecting K in response surface models (37% and 32% at days 0 and 60, respectively).The highest BMP (359.43 mL/gVS) occurred at 27 °C with PS2 and an S/I of 0.20, while the maximum BMP at 10 and 15 °C were 38.14 and 90.13 mL/gVS, respectively.</p>\u0000 </div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"19 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12155-025-10929-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147642983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Biomass Briquettes for Sustainable Energy: Exploring Material Characterization, Manufacturing Methods, and Applications","authors":"Geetika, Imdadul Hoque Mondal, Omar Bashir, Prashant Anil Pawase, Aashita Bhardwaj","doi":"10.1007/s12155-026-10986-5","DOIUrl":"10.1007/s12155-026-10986-5","url":null,"abstract":"<div><p>Biomass briquettes (BBs) are gaining tremendous attention as a renewable and cost-effective alternative to conventional fossil fuels, offering both environmental and economic advantages. This review explores the potential of briquettes derived from agricultural residues, industrial by-products, and forestry waste. Briquetting not only enhances the energy properties of raw biomass but also improves its handling characteristics by reducing moisture content, increasing density, and facilitating transportation and storage. Key factors influencing the quality of briquettes include the type of raw material used, the application of binding agents, and the method of production. These variables play a crucial role in determining combustion efficiency and structural integrity of the final product. To evaluate the performance and suitability of biomass briquettes for various uses, several parameters are considered—such as calorific value, ash and moisture content, bulk density, and combustion behaviour. Biomass briquettes have diverse applications, ranging from household cooking and space heating to industrial energy generation. Despite their promise, further innovation in production technology and broader policy support are essential to scale up their adoption. In regions rich in biomass resources, the development and utilization of briquettes can contribute meaningfully to sustainable energy goals and reduce dependence on non-renewable energy sources.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"19 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147606354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"From Waste to Bioenergy: A Comprehensive Review on Pineapple Waste Valorization for Biohydrogen Production","authors":"Joon Choi Chai, Siti Halimah Hasmoni, Nurashikin Ihsan, Mohd Firdaus Abdul-Wahab","doi":"10.1007/s12155-026-10990-9","DOIUrl":"10.1007/s12155-026-10990-9","url":null,"abstract":"<div><p>Renewable energy plays a crucial role in reducing reliance on fossil fuels. Among various renewable sources, bioenergy is gaining attention as a key component of sustainable energy development. Second-generation bioenergy can be produced from waste materials generated by various sectors, including agricultural waste. One such example is pineapple waste, the generation of which has been increasing due to the rising demand for pineapple fruit. Current disposal methods, such as burning and landfilling, pose serious environmental concerns. Therefore, valorizing pineapple waste into value-added products offers a more sustainable waste management strategy.</p><p>Pineapple waste is rich in sugars and contains a significant amount of lignocellulosic material, making it a promising feedstock for biohydrogen production. Pretreatment is required to break down the complex lignocellulosic structure to make the sugars more accessible for microbial fermentation. The use of microorganisms, whether in pure cultures, co-cultures, or mixed cultures, has been shown to enhance biohydrogen yields. Optimization of process parameters is essential to maximize production, and response surface methodology (RSM) is a widely used statistical tool for this purpose. RSM can be effectively applied to optimize biohydrogen production using pineapple waste as a substrate. In conclusion, pineapple waste provides the feasible substrate source for biohydrogen production, in addition to the other agriculture-based wastes. There is currently limited information about different reactor optimizations and life cycle assessment for biohydrogen production using pineapple waste as substrate, presenting the research gap that needs to be addressed in the future.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"19 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12155-026-10990-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147607368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Guanghui Wang, Jiaxiang Li, Patrick Kabanda, S. V. Vasilevich, Zhihao Wang, Zhiwei Jiang, Shengpeng Xia, Shuang Wang, Kun Zhao, Zengli Zhao, Anqing Zheng
{"title":"Selective Production of Value-Added Chemicals from Fast Pyrolysis of Lignocellulosic Biomass: Current Status, Challenges and Prospects","authors":"Guanghui Wang, Jiaxiang Li, Patrick Kabanda, S. V. Vasilevich, Zhihao Wang, Zhiwei Jiang, Shengpeng Xia, Shuang Wang, Kun Zhao, Zengli Zhao, Anqing Zheng","doi":"10.1007/s12155-026-10979-4","DOIUrl":"10.1007/s12155-026-10979-4","url":null,"abstract":"<div>\u0000 \u0000 <p>Fast pyrolysis of biomass remains one of the most promising technologies for the sustainable production of value-added chemicals. This thermally driven process typically maximizes liquid yield through strategic implementation of high heating rates combined with rapid vapor quenching, thus effectively suppressing secondary polycondensation and cracking reactions. However, the resultant product spectrum comprises over 400 oxygenated compounds with characteristically low individual concentrations. To achieve high-yield selective production of target chemicals, coordinated optimization of both biomass composition/structure and pyrolysis parameters is essential. This comprehensive approach integrates pretreatment methodologies, reactor design optimization, and precise control of operational variables (temperature, heating rate, vapor residence time), supplemented by catalytic interventions. This review systematically examines the mechanistic foundations of biomass fast pyrolysis, including decomposition pathways of cellulose, hemicellulose, and lignin, with particular emphasis on factors governing their pyrolysis selectivity. Special attention is given to catalytic strategies enabling targeted production of value-added chemicals, such as levoglucosan, levoglucosenone, 1,4:3,6-dianhydro-α-D-glucopyranose, 1,5-anhydro-4-deoxy-D-glycero-hex-1-en-3-ulose, 1-hydroxy-3,6-dioxabicyclo[3.2.1]octan-2-one, 5-hydroxymethylfurfural, furfural, phenols, and aromatics. Critical analysis of catalyst design principles and associated reaction mechanisms provides new insights into selective pyrolysis control. The review concludes with an assessment of persistent technological barriers and commercialization potential for biomass-derived chemical production via selective fast pyrolysis.</p>\u0000 </div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"19 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147607369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Techno-Economic Assessment of Hydrogen Production From Agricultural Biomass Residues Via Gasification: Strategies for Bioenergy Feedstock Selection in Indonesia","authors":"Bima Prasetya Pancasakti, Teta Fathya Widawati, Budhijanto Budhijanto","doi":"10.1007/s12155-026-10991-8","DOIUrl":"10.1007/s12155-026-10991-8","url":null,"abstract":"<div>\u0000 \u0000 <p>This study presents a process optimization and techno-economic evaluation of hydrogen production via biomass gasification using four abundant agricultural residues in Indonesia: palm oil empty fruit bunches (PO-EFB), palm kernel shells (PO-PKS), rice husks (RH), and corn cobs (CC). Aspen Plus V14 was employed to simulate gasification under varying temperatures (700–1000 °C) and gasifying agent-to-biomass ratios (1:1–1.5:1) using both air and steam. Results show that steam consistently outperforms air, nearly doubling hydrogen yields (up to 49.52 mol kg<sup>− 1</sup> for RH) while enabling efficient operation at lower temperatures (700 °C). Techno-economic analysis indicates that steam gasification reduces the levelized cost of hydrogen (LCOH) by 50–60% compared to air, with RH achieving the lowest LCOH of 1531 USD ton<sup>− 1</sup> H₂ and PO-PKS providing the most cost-effective syngas production at 1033 USD ton<sup>− 1</sup>. Sensitivity analysis highlights capital investment and utility costs as the dominant economic drivers. Overall, this study highlights the role of agricultural biomass residues in Indonesia as viable bioenergy feedstocks and demonstrates the potential of steam gasification to support cost-effective renewable fuel production in biomass-rich developing regions.</p>\u0000 </div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"19 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147561716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Techno-Economic Assessment of Nanocellulose Production from Forest Harvesting Residues: Impacts of Governmental Policies","authors":"Kimiya Rahmani Mokarrari, Taraneh Sowlati","doi":"10.1007/s12155-026-10987-4","DOIUrl":"10.1007/s12155-026-10987-4","url":null,"abstract":"<div>\u0000 \u0000 <p>Forest harvesting residues offer a promising renewable feedstock for producing bioproducts such as cellulose nanocrystals (CNC) and cellulose nanofibrils (CNF). However, the techno-economic viability of bioproduction from forest residues remains challenging due to high investment risks and limited commercial maturity. While the literature emphasizes the role of government interventions in addressing some of these barriers, such policies have rarely been integrated into techno-economic models for emerging products like nanocellulose. This study addresses this gap by outlining the technical aspects of CNC and CNF production, designing supply chain pathways from forest residue collection to final product, and specifying the required equipment and capacities at each stage. A techno-economic analysis is performed to calculate the net present value (NPV) and evaluate feasibility across three production scales (small, medium, large) at four locations in the Williams Lake Timber Supply Area, British Columbia (BC), Canada. The impacts of four governmental policies, including feedstock subsidies, direct capital investment incentives, enhanced first-year depreciation allowances, and BC’s carbon pricing system are also evaluated to assess their effectiveness in improving the economic performance. Results show economic infeasibility of small-scale CNC productions. Among the policies tested, only direct capital investment incentives significantly improve NPV, though insufficient to make small-scale CNC productions viable. Other policies have minimal effects. Sensitivity analysis highlights that the selling price and capital investment are among the most influential parameters affecting feasibility. Therefore, future policies should focus on measures that enhance revenue or reduce capital costs, such as output-based subsidies or greater public investment in capital expenditures. Overall, this study highlights the need for a stronger or better-targeted policy support to advance the commercial viability of forest biomass-based bioproducts.</p>\u0000 </div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"19 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147561286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. G. Yudanto, F. R. Panjaitan, H. Ambarita, T. B. Sitorus
{"title":"Palm Oil–Based Straight Vegetable Oil as a Sustainable Fuel Alternative for Low–Medium Speed Diesel Engines: A Critical Review of Technical Viability, Emissions, and Circular Economy Integration","authors":"B. G. Yudanto, F. R. Panjaitan, H. Ambarita, T. B. Sitorus","doi":"10.1007/s12155-026-10973-w","DOIUrl":"10.1007/s12155-026-10973-w","url":null,"abstract":"<div>\u0000 \u0000 <p>The global urgency to lower greenhouse gas emissions has accelerated interest in renewable fuels. Palm oil-based straight vegetable oil (SVO) has emerged as a promising candidate for low-medium speed diesel engines. This review critically evaluates the hypothesis that mildly processed palm-oil SVO can be a technically viable and sustainable fuel for low-medium speed engines if integrated within a circular bioeconomy model, overcoming key technical and economic barriers.. Evidence indicates that palm oil SVO can reduce CO₂ and particulate emissions while facing challenges such as high viscosity, deposit formation, and cold flow issues. Preheating, transesterification, and blending improve performance but introduce economic and sustainability constraints. Mild processing technologies and circular-economy models show strong potential to resolve technical, environmental, and supply chain bottlenecks. This review uniquely synthesizes technical performance data with circular economy and mild refining frameworks, proposing a pathway for SVO that bypasses costly transesterification. This approach reveals a significant opportunity to improve the economic and environmental profile of palm-based biofuels.</p>\u0000 </div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"19 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}