{"title":"Novel Averrhoa bilimbi Linn. water-based natural acidic aqueous electrolyte assembled with activated carbon from A. bilimbi L. fruit waste for electrochemical energy storage system","authors":"Awitdrus Awitdrus, Lailatul Rahmi, Iwantono Iwantono, Rakhmawati Farma, Agustino Agustino","doi":"10.1016/j.biombioe.2025.108361","DOIUrl":"10.1016/j.biombioe.2025.108361","url":null,"abstract":"<div><div>In this work, <em>Averrhoa bilimbi</em> Linn<em>.</em> fruit was exploited in a dual function for the fabrication of symmetric supercapacitor devices. Specifically, <em>A. bilimbi</em> L. fruit water was employed as a novel natural acidic aqueous electrolyte, while activated carbon derived from <em>A. bilimbi</em> L. fruit waste was synthesized as the electrode material via a chemical impregnation method. The primary objectives were to explore the viability of <em>A. bilimbi</em> L. fruit water as an innovative natural electrolyte solution and to evaluate the impact of various chemical impregnation agents on the electrochemical performance of the activated carbon electrodes within the <em>A. bilimbi</em> L. fruit water-based electrolyte. The ABAC-K-800 demonstrated a high S<sub>BET</sub> of 937.7 m<sup>2</sup> g<sup>−1</sup>. Among the samples, the ABAC-H-800 exhibited a remarkable specific capacitance of 287.8 ± 6 F g<sup>−1</sup> at 1 A g<sup>−1</sup>. Furthermore, this device achieved a high energy density of 39.97 ± 0.86 Wh kg<sup>−1</sup> coupled with a power density of 1050.42 W kg<sup>−1</sup>. This work not only introduces an innovative strategy for the application of <em>A. bilimbi</em> L. fruit water as a sustainable electrolyte in supercapacitors but also establishes a facile and effective approach to fabricate high-performance symmetric supercapacitor devices from biomass-derived activated carbon, thereby contributing to the development of eco-friendly and cost-effective energy storage technologies.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"203 ","pages":"Article 108361"},"PeriodicalIF":5.8,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007727","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":"A comprehensive review on degradation pathways, catalyst screening and machine learning in supercritical water gasification from biomass for sustainable hydrogen production","authors":"Reza Dehdari, Sahand Azadvar, Omid Tavakoli","doi":"10.1016/j.biombioe.2025.108336","DOIUrl":"10.1016/j.biombioe.2025.108336","url":null,"abstract":"<div><div>Supercritical water gasification (SCWG) efficiently converts biomass into hydrogen-rich syngas. This review analyzes biomass degradation pathways, process parameters, reactor configurations, and catalytic advancements to enhance hydrogen selectivity and carbon gasification efficiency. Biomass components (cellulose, hemicellulose, lignin, lipids, proteins) undergo hydrolysis, decarboxylation, dehydration, and reforming to produce H<sub>2</sub>, CO, CO<sub>2</sub>, and CH<sub>4</sub>. Key operational parameters (temperature, pressure, feed concentration, residence time) are evaluated to optimize syngas yield and minimize energy use. Reactor designs (batch, fluidized bed, continuous systems) are compared for scalability and efficiency. Catalytic enhancements involve homogeneous catalysts (KOH, Na<sub>2</sub>CO<sub>3</sub>) and heterogeneous catalysts (Ni, Co, Fe, Ru, Pt), focusing on synthesis methods to improve catalyst performance. Catalysts influence Water Gas Shift (WGS), methanation, steam reforming, and bond cleavage under supercritical conditions. Na and K promote biomass decomposition via formate intermediates; Ca enhances CO<sub>2</sub> capture and reforming; Ni facilitates H<sub>2</sub>-selective bond activation; Ru aids organic breakdown; Fe, Ce, Cu, and Co support gasification. Furthermore, application strategies that affect dispersion, scalability, and regeneration potential. Alongside regeneration techniques like oxidative purging, steam stripping, solvent washing, calcination, and in situ rejuvenation, deactivation mechanisms are covered. Additionally, advancements in machine learning (ML) applied to SCWG include models like artificial neural networks (ANNs), support vector machines (SVMs), Random Forests (RF), and Gradient Boosting Regressors (GBR), successfully predicting hydrogen yield, syngas composition, and optimizing process parameters. Finally, end-product and waste stream management are addressed, covering gaseous, liquid, and solid residues, with effective mitigation strategies outlined for each stream.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"203 ","pages":"Article 108336"},"PeriodicalIF":5.8,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145003792","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":"Engineering microporous humins derived from glucosamine for CO2 adsorption","authors":"Shujie Wang, Hetao Zhang, Zhongping Shao, Li Liu","doi":"10.1016/j.biombioe.2025.108346","DOIUrl":"10.1016/j.biombioe.2025.108346","url":null,"abstract":"<div><div>In comparison to the thriving lignocellulosic biomass, the research on humins derived from marine biomass has not been thoroughly investigated. By choosing glucosamine (GlcN) as a model, the transformation process from raw material to solution intermediates until humins solid was demonstrated for the first time. The key intermediates were successfully captured and identified to be pyrazine dimers, such as 1-[5-(2,3,4-Trihydroxybutyl)-2-pyrazinyl]-1,2,3,4-butanetetrol and 1-[5-(3,4-dihydroxy-1-buten-1-yl)-2-pyrazinyl]-1,2,3,4-butanetetrol, which are formed through ring-opening of GlcN. By means of HPLC-MS/MS, FT-IR, XPS, elemental analyses and SEM characterizations, three elementary reactions were revealed including etherification reaction of pyrazine dimers and HMF, aldol condensation of LA, and thermal oxidation. At early stage, pyrazine dimers are linked by etherification. HMF could be linked through etherification as well, with LA reacted with the CHO group of HMF by aldol condensation. At the later stage, the thermal oxidation deepens, resulting in the enhancement of C=O. Moreover, GlcN-derived humins were engineered into porous carbon materials with excellent CO<sub>2</sub> adsorption capacity up to 5.60 mmol/g, whereas the CO<sub>2</sub> uptake was well correlated with the volume of micropores below 0.82 nm.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"203 ","pages":"Article 108346"},"PeriodicalIF":5.8,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145003777","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}
Ran Chen , Weizhuo Guan , Zejun Luo , Yang Cao , Mingzhe Sun , Xiefei Zhu
{"title":"Rethinking energy delivery in biomass pyrolysis: Comparative insights into conventional, microwave, and induction heating","authors":"Ran Chen , Weizhuo Guan , Zejun Luo , Yang Cao , Mingzhe Sun , Xiefei Zhu","doi":"10.1016/j.biombioe.2025.108352","DOIUrl":"10.1016/j.biombioe.2025.108352","url":null,"abstract":"<div><div>Driven by the demands of global energy transition and carbon emission reduction, pyrolysis technology has become a research hotspot due to its ability to efficiently convert biomass into high-value energy and chemicals. However, conventional heating technologies are limited by low heat transfer efficiency, high energy loss, and poor product selectivity. Promising strategies include integrating advanced heating techniques and selecting appropriate catalysts. This review first introduces the heating mechanisms of conventional heating, microwave heating, and electromagnetic induction heating. Subsequently, the characteristics of the three heating reactors are compared, and their heat transfer mechanisms are further elucidated. The impact of each heating method on product distribution and yield is further discussed, highlighting their respective advantages in biomass pyrolysis. In addition, the role of catalysts, especially under microwave and electromagnetic induction heating, is systematically evaluated. In this review, microwave heating (0.3–300 GHz) and electromagnetic induction heating (10 kHz-10 MHz) utilize electromagnetic waves to directly heat hotspots within feedstocks. Moreover, electromagnetic induction heating can reduce energy consumption by more than 40 %, and the phenols obtained from induction heating of lignin can reach up to 100 %. This review aims to provide new insights into energy-efficient heating strategies and catalysis-assisted pyrolysis, offering guidance for the development of next-generation biomass pyrolysis technologies.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"203 ","pages":"Article 108352"},"PeriodicalIF":5.8,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145003794","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}
Mahmoud Elsafi , Yeek Chia Ho , Hoe Guan Beh , Wai Hong Leong , Norhana Mohamed Rashid
{"title":"Innovations in microalgae pyrolysis: Driving circular economy and clean energy goals: Review","authors":"Mahmoud Elsafi , Yeek Chia Ho , Hoe Guan Beh , Wai Hong Leong , Norhana Mohamed Rashid","doi":"10.1016/j.biombioe.2025.108327","DOIUrl":"10.1016/j.biombioe.2025.108327","url":null,"abstract":"<div><div>Microalgae are now considered promising feedstocks to produce renewable biofuels because of their high productivity, quick growth rates, and diverse biochemical makeup, which includes high levels of proteins, lipids, and carbohydrates. The development of pyrolysis for thermochemical conversion, harvesting, and cultivation is reviewed here, with a focus on process optimisation and co-pyrolysis with complementary feedstocks. Emphasis is placed on recent advancements in catalytic pyrolysis and microwave-assisted pyrolysis, which have demonstrated promise in raising product quality and energy efficiency. The analysis synthesizes research on variables influencing yield and product attributes, as well as technology advancements aimed at improving productivity and sustainability. There is a discussion of both potential and challenges for aligning production systems with the concepts of the circular economy, including energy consumption, feedstock unpredictability, and scale-up constraints. This article presents a comprehensive evaluation of microalgae pyrolysis and co-pyrolysis for biofuel generation, which differs from previous assessments in that it incorporates sustainability concerns, circular economy paths, and new process advances.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"203 ","pages":"Article 108327"},"PeriodicalIF":5.8,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145003793","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 and conformational study to increase nutrients and biofuel content in the extract of sorghum's plant augmented by nano NPK and zeolite","authors":"Mastu Patel , Prasann Kumar , Sudhir Kumar Upadhyay","doi":"10.1016/j.biombioe.2025.108343","DOIUrl":"10.1016/j.biombioe.2025.108343","url":null,"abstract":"<div><div>This research addresses the use of nano-NPK, zeolite, press mud, and bio-neema together to make sweet sorghum (<em>Sorghum bicolor</em> L.) more nutrient-efficient and better for producing biofuels. We conducted a field experiment with 10 different optimized treatment combinations to assess their impact on the plants' growth, function, and chemistry. Treatment T6 (75 % RDF + zeolite + press mud + bio-neema) performed better than all other treatments compared to the control (T1). It increased plant biomass, extract yield (29,505.11 L ha<sup>−1</sup>), and possible ethanol production. FTIR-ATR analysis confirmed changes in the extract's composition, demonstrating that it could convert more biochemically, including ethanol. However, EDX spectra and elemental mapping showed that T6 had a complex, nutrient-rich matrix, which meant that it could absorb nutrients well. Principal Component Analysis (PCA) showed that T6's shape was better at 30 and 60 days after planting. The findings show that adding nano-mineral-organic amendments not only reduces the demand for chemical fertilizers but also improves the structure of sorghum extract, making it more nutritious and easier to ferment. This optimization and structural strategy lay the groundwork for making sorghum a better dual-purpose crop for biofuel and food in places where resources are limited.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"203 ","pages":"Article 108343"},"PeriodicalIF":5.8,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144996535","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}
Richa Tomer , Alessia Tonelli , Anthony Morena , Luca Fusaro , Vera Meynen , Carmela Aprile , Sophie Hermans
{"title":"Enhanced catalytic conversion of cellobiose/cellulose to 5-hydroxymethylfurfural using dual catalysts: Sulfonated activated carbon and Lewis acid catalyst","authors":"Richa Tomer , Alessia Tonelli , Anthony Morena , Luca Fusaro , Vera Meynen , Carmela Aprile , Sophie Hermans","doi":"10.1016/j.biombioe.2025.108320","DOIUrl":"10.1016/j.biombioe.2025.108320","url":null,"abstract":"<div><div>An activated carbon (SX+) was functionalized with sulfonic groups via the diazonium coupling method to impart Brӧnsted (B) acidity to catalyze cellobiose and cellulose upgrading into 5-HMF. X-ray photoelectron spectroscopy (XPS) confirmed SO<sub>3</sub>H groups grafting, which significantly enhanced the total acidity to 1.33 mmol/g cat., as confirmed by Boehm titration. The B nature of acidity was verified by <sup>31</sup>P ssNMR. The catalytic activity of SO<sub>3</sub>H/SX+ alone and with AlCl<sub>3</sub> as Lewis (L) acid was evaluated by optimizing reaction conditions such as temperature, solvent, and B/L ratio. A ∼47 % 5-HMF yield was obtained with 100 % cellobiose conversion at 150 °C, 4 h with SO<sub>3</sub>H/Al ratio of 1:10 in Milli-Q water (MQ)/tetrahydrofuran (THF) solvent. When AlCl<sub>3</sub> was replaced with heterogeneous Lewis acidic catalysts (γ-Al<sub>2</sub>O<sub>3</sub>, AlOOH, and TiO<sub>2</sub>), TiO<sub>2</sub> combined with SO<sub>3</sub>H/SX+ showed similar catalytic activity, achieving ∼50 % yield of 5-HMF with 100 % cellobiose conversion, attributed to its high total acidity (2.4 × 10<sup>−2</sup> mol/g cat.). 5-HMF was isolated from the reaction mixture using liquid-liquid extraction, resulting in ∼98 % pure 5-HMF. Moreover, SO<sub>3</sub>H/SX+ efficiently cleaved the glycosidic bonds of microcrystalline cellulose by giving a ∼24 % 5-HMF yield when combined with Lewis acid TiO<sub>2</sub>. This study presents a novel dual catalytic system, utilizing an optimized B/L acidity ratio to achieve efficient cellulose conversion into 5-HMF.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"203 ","pages":"Article 108320"},"PeriodicalIF":5.8,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144996536","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}
Hafiz Muhammad Uzair Ayub , Muhammad Ammar , Muhammad Shahbaz , Tareq Al Ansari
{"title":"Techno-economic and environmental evaluation of hydrogen production from municipal solid waste via CaO-assisted gasification for biorefinery applications","authors":"Hafiz Muhammad Uzair Ayub , Muhammad Ammar , Muhammad Shahbaz , Tareq Al Ansari","doi":"10.1016/j.biombioe.2025.108328","DOIUrl":"10.1016/j.biombioe.2025.108328","url":null,"abstract":"<div><div>Climate change and GHG emissions are driving the shift from fossil fuel refineries to biorefineries, with biomass and waste playing a key role in this transition. The objective of this study is to evaluate the use of organic waste sources, especially municipal solid waste (MSW), for H<sub>2</sub> production with economic potential. A process model in Aspen Plus v14® was used to study CaO-assisted gasification of five wastes (food, paper, textile, plastic, and MSW) under 650–900 °C and 500–2000 kg/h steam flow, with a fixed CaO-to-feed ratio of 1. Plastic waste demonstrated the highest hydrogen yield (up to 189.6 kg/h at 2000 kg/h steam), attributed to its higher hydrocarbon content and low oxygen ratio. The integration of CaO effectively captured over 50 % of the generated CO<sub>2</sub>, significantly enhancing syngas purity and hydrogen production through equilibrium shifts, particularly via the water-gas shift reaction. From a techno-economic perspective, plastic waste presented the lowest syngas production cost ($236.86/tonne) and highest annual net profit ($3.20 million), considerably outperforming biomass-derived feedstocks. MSW also showed favorable economics, indicating its viability as a feedstock due to its mixed composition. Environmentally, biomass-based feedstocks (paper, food waste, textile) yielded lower CO<sub>2</sub> emissions (378.89–449.66 kg CO<sub>2</sub>-e/hr), highlighting their biogenic carbon neutrality benefits. Conversely, plastic waste exhibited the highest CO<sub>2</sub> emissions (815.41 kg CO<sub>2</sub>-e/hr), underscoring a trade-off between economic performance and environmental impact. This research shows a promising, sustainable waste-to-fuel solution supporting biorefineries and the circular economy.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"203 ","pages":"Article 108328"},"PeriodicalIF":5.8,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145003776","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}
Jiayu Xu , Tongxin Sun , Yuan Guo , Taotao Wu , Jinge Hu , Yunhao Lin , Longyuan Yang , Ying Gao , Tianruo Shen
{"title":"Conversion of high-value products from biomass aqueous phase through enzymatic-hydrothermal treatment","authors":"Jiayu Xu , Tongxin Sun , Yuan Guo , Taotao Wu , Jinge Hu , Yunhao Lin , Longyuan Yang , Ying Gao , Tianruo Shen","doi":"10.1016/j.biombioe.2025.108348","DOIUrl":"10.1016/j.biombioe.2025.108348","url":null,"abstract":"<div><div>Hydrothermal treatment is a beneficial method for the resource utilization of biomass waste, producing hydrochar and an aqueous phase containing valuable organic products. However, the pathway for recovering high-value products from the aqueous phase remain insufficiently explored. This work presents an innovative enzymatic-hydrothermal treatment designed to enrich the concentration of nitrogen-containing compounds in the hydrothermal aqueous phase (AP) derived from nitrogen-rich biomass. A detailed analysis of the post-enzymatic AP products was carried out, with a specific emphasis on tracking changes in the chemical composition of the AP. The results showed a significant increase in the nitrogen content of the soymeal-derived AP after enzymatic pre-treatment followed by hydrothermal treatment at 220 °C. Meanwhile, valuable platform compounds such as furfural and 5-hydroxymethylfurfural were produced via isophorone-catalyzed decarboxylation of α-amino acids within the enzymatic soymeal AP, steered by deliberate modifications in the reaction pathway. Moreover, a working mechanism for this catalytic decarboxylation process was proposed, enabling precise adjustments to the composition of the AP.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"203 ","pages":"Article 108348"},"PeriodicalIF":5.8,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144996537","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}
Piyush Verma , Amit Kumar , Tongtong Wang , Ravinder Kaushik , Chin Wei Lai
{"title":"Recent advances and trends in food waste valorization via microwave and ultrasonic-assisted hydrolysis into bio-energy and value-added products-A sustainable approach","authors":"Piyush Verma , Amit Kumar , Tongtong Wang , Ravinder Kaushik , Chin Wei Lai","doi":"10.1016/j.biombioe.2025.108340","DOIUrl":"10.1016/j.biombioe.2025.108340","url":null,"abstract":"<div><div>The alarming scale of food waste (1.3 billion tonnes globally), contributing 8–10 % greenhouse gas emissions, necessitates sustainable valorization approaches. Among advanced technologies, microwave-assisted hydrolysis or ultrasonic-assisted hydrolysis emerged as extremely effective strategies for biomass conversion into valuable products. These techniques use microwave-induced dielectric heating and ultrasound-driven cavitation to improve cell wall disruption, mass transfer, and hydrolytic efficiency, far surpassing traditional hydrolysis procedures in terms of reaction time, yield, and energy consumption. Recent developments in ultrasonic and microwave assisted hydrolysis have demonstrated a great potential in terms of the production or extraction of flavonoids, carotenoids, and polyphenols. This review critically evaluates current breakthroughs, mechanistic insights, optimization methodologies, and the relative efficacy of microwave-assisted hydrolysis or ultrasonic-assisted hydrolysis in food waste valorization. Furthermore, new hybrid approaches, such as ultrasound-microwave synergistic hydrolysis, are being investigated for their potential to improve process efficiency and industrial scalability. Using integrated valorization high 58.4 % hydrogen conversion efficiency has been reported, along with 2.49-fold volatile fatty acid synthesis. The life cycle analysis has been reported in some works where in microwave assisted extraction could save 5.82 % energy demand. Future efforts should concentrate on developing solvent-free and enzymatically assisted systems and promoting bio refinery-based circular economy models for integrated food waste valorization. By filling knowledge gaps and establishing research priorities, this effort provides the groundwork for the next generation of sustainable waste-to-value solutions, paving the way for zero-waste bioprocessing and a resilient global food system.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"203 ","pages":"Article 108340"},"PeriodicalIF":5.8,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144932632","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}