Journal of chemical technology and biotechnology最新文献

{"title":"Lignocellulosic biomass conversion into ethylene glycol using heterogeneous catalysts: a mini-review","authors":"Darya A Konovalova,&nbsp;Anton P Koskin,&nbsp;Sergey A Stepanenko,&nbsp;Roman G Kukushkin,&nbsp;Daniil I Lashchenko,&nbsp;Petr M Yeletsky,&nbsp;Vadim A Yakovlev","doi":"10.1002/jctb.70052","DOIUrl":"https://doi.org/10.1002/jctb.70052","url":null,"abstract":"<p>Ethylene glycol (EG) is known to be a large-tonnage industrial chemical produced mainly <i>via</i> energy-intensive processes from ethylene oxide generally obtained from petroleum feedstock. At the same time, lignocellulosic biomass represents a green and sustainable alternative to the fossil feedstocks for EG production. Beside the properly selected reaction conditions, the key point of success for this complex process is in the development of a suitable multifunctional catalyst ensuring necessary rates of the reactions. This mini-review article surveys recent achievements in the development of heterogeneous catalysts for the conversion of cellulose into green ethylene glycol – both extracted and in the composition of lignocellulose biomass. The literature review showed that utilization of W-based and Ni or Ru-based catalysts allows for achievement of promising ethylene glycol yields from lignocellulose biomass (~ 40–60 wt. %). However, using real biomass feedstocks remains quite challenging and requires additional research as now only more than dozen reports present in the literature. In addition to summarizing current progress, this article outlines future research directions aimed at developing robust, low-cost, and scalable catalytic systems suitable for practical application. By promoting biomass-derived EG production, this work contributes to the advancement of sustainable chemical manufacturing, energy security, and rural biomass valorization – offering potential socioeconomic benefits through reduced dependence on fossil resources, lowered carbon footprint, and enhanced regional circular bioeconomies. © 2025 Society of Chemical Industry (SCI).</p>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 11","pages":"2251-2258"},"PeriodicalIF":2.4,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on composite modification of CuAl-LDH/HNT materials and their carbon dioxide adsorption performance","authors":"Yulan Zhu,&nbsp;Yao Zhou,&nbsp;Weifeng Gong,&nbsp;Tongtong Tang","doi":"10.1002/jctb.70045","DOIUrl":"https://doi.org/10.1002/jctb.70045","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Among various CO₂ capture technologies, solid adsorption has become the most widely used method. In addition, organic amine modified solid adsorbents can further improve their CO₂ adsorption performance and have broad application prospects.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Result</h3>\u0000 \u0000 <p>CuAl-LDH/HNT composite material was synthesized <i>via</i> the co-precipitation method by using acid-treated halloysite (HNT) as one of the substrates. Further, the xAPTES CuAl-LDH/HNT composite adsorbent was successful synthesized by using 3-aminopropyltriethoxysilane (APTES) as modifier. It was found that adjusting the composite ratio of CuAl-LDH, HNT, and APTES can fully utilize the synergistic effect between materials, thereby affecting their CO₂ adsorption performance. Especially, when the ratio of CuAl-LDH to HNT was 2:1 and the loading amount of APTES was 30 wt%, the performance of the composite material was optimal. The adsorption performance and regenerability test results of the material showed that the adsorption capacity of 30APTES-LDH/HNT was 4.38 mmol/g after static adsorption for 24 h, and maintained over 92% regeneration efficiency after 6 cycles. By fitting the adsorption process of the material with a kinetic model, it was found that chemical adsorption was the main process, and the comparison of infrared spectra before and after adsorption also clearly showed the improved performance of the modified material.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Remarkable adsorption capacity and good recyclability suggest that synthesized APTES-functionalized CuAl-LDH/HNT adsorbents have high potential for CO₂ capture in industry. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 11","pages":"2325-2336"},"PeriodicalIF":2.4,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable TiO2/Diospyros texana seed-derived activated carbon composites for rapid photodegradation of oxytetracycline and amoxicillin under visible light","authors":"Muhammad Bilal,&nbsp;Amir Hossein Behroozi,&nbsp;Rifat Jahan,&nbsp;Javed Ali,&nbsp;Vahid Vatanpour","doi":"10.1002/jctb.70049","DOIUrl":"https://doi.org/10.1002/jctb.70049","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>The widespread occurrence of antibiotics in aquatic environments has emerged as a serious environmental concern due to their persistence, bioaccumulation, and role in promoting antimicrobial resistance. Conventional treatment methods are often inadequate for complete antibiotic removal. Thus, developing multifunctional, sustainable materials capable of both adsorption and degradation is essential for effective water treatment.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>This study introduces a novel titanium dioxide (TiO₂)/activated carbon (AC) composite synthesized from <i>Diospyros texana</i> seed biomass for efficient removal of oxytetracycline (OTC) and amoxycillin (AMX). The optimized 10 wt% TiO₂/AC composite, prepared <i>via</i> an impregnation method, exhibited enhanced visible-light photocatalytic activity and adsorption capacity. Structural characterization confirmed well-dispersed TiO₂ nanoparticles within the macroporous AC framework, promoting effective light harvesting, charge separation, and contaminant binding. The composite demonstrated thermal stability and a point of zero charge of 7.8, facilitating pH-dependent interactions with AMX and OTC. Under optimal conditions (pH 3 for AMX, pH 7 for OTC, 0.1 g/L composite), the system achieved rapid removal (&gt; 90%), equilibrium within 3 min for AMX and 5 min for OTC. Performance remained stable for over 180 min and showed no significant decline even after five reuse cycles. However, increasing TiO₂ beyond 10% reduced efficiency due to pore blockage and loss of active surface area.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The synergistic integration of bio-derived AC and TiO₂ yields a cost-effective material for efficient antibiotic removal from water. Overall, this study offers a scalable strategy for wastewater remediation, addressing critical environmental challenges posed by pharmaceutical contaminants through rapid degradation within minutes. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 11","pages":"2371-2382"},"PeriodicalIF":2.4,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"COSMO-RS prediction, liquid–liquid equilibrium experiment and quantum chemical calculation to separate n-hexane and n-propanol azeotropic system with ionic liquids","authors":"Chi Jin,&nbsp;Dongxiang Zhang,&nbsp;Siyi Han,&nbsp;Yu Sheng,&nbsp;Hua Xin,&nbsp;Qinqin Zhang,&nbsp;Zhigang Zhang","doi":"10.1002/jctb.70051","DOIUrl":"https://doi.org/10.1002/jctb.70051","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p><i>n</i>-Hexane and <i>n</i>-propanol (NPA) are frequently used for drug synthesis. During the synthesis of fenbufen drug eutectic, <i>n</i>-hexane and NPA will form an azeotrope; separation of the azeotrope by conventional distillation techniques is extremely difficult. However, it can be achieved by liquid–liquid extraction.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>In this study, the Conductor-like Screening Model for Real Solvents (COSMO-RS) was employed to screen ionic liquids (ILs) for separating the <i>n</i>-hexane–NPA azeotrope. The liquid–liquid equilibrium (LLE) data of the ternary <i>n</i>-hexane–NPA–IL systems were determined under atmospheric pressure at 303.15 K. The data were correlated using the non-random two-liquid model. The root-mean-square deviation and binary interaction parameters were acquired, and the parameters were validated using the ‘GMcal_TieLinesLL’ tool of the MATLAB program to meet the Gibbs stability criterion. Besides, quantum chemical calculations were conducted, including interaction energy, electrostatic potential analysis, independent gradient model based on Hirshfeld partition analysis and quantum theory of atoms in the molecule topological analysis.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>LLE experiments showed the extraction efficiency of the ILs: Three ILs were identified as promising extractants: 1-ethyl-3-methylimidazolium trifluoroacetate ([C₂MIM][TFA]), 1-butyl-3-methylimidazolium trifluoroacetate ([C₄MIM][TFA]) and 1-hexyl-3-methylimidazolium trifluoroacetate ([C₆MIM][TFA]). Extraction performance follows the order [C₂MIM][TFA] &gt; [C₄MIM][TFA] &gt; [C₆MIM][TFA]. Quantum chemical calculations demonstrated that ILs and NPA are more inclined to form hydrogen bonds. The process simulation was conducted using Aspen Plus V11. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 11","pages":"2402-2416"},"PeriodicalIF":2.4,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stable aerobic granulation for the selection of a mixed culture producing polyhydroxyalkanoates at high phenol loads","authors":"Georgina Berretta Invernizzi,&nbsp;Ana M Ferro Orozco,&nbsp;Noemí E Zaritzky,&nbsp;Alejandro H Caravelli","doi":"10.1002/jctb.70046","DOIUrl":"https://doi.org/10.1002/jctb.70046","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Polyhydroxyalkanoate (PHA) production by pure culture or activated sludge (AS) using phenolic compounds is constrained by their toxicity against dispersed bacteria and flocs. Aerobic granular sludge (AGS) is a promising option for mitigating inhibition; however, achieving stable PHA-producing AGS from phenol constitutes a challenge.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>In the present study, aerobic granulation and accumulation of intracellular carbon reserve were evaluated in laboratory-scale sequential batch reactors (24 h cycle), inoculated with AS at different phenol loads and aeration rates. At upflow air velocity of 1.9 cm s⁻¹, acclimation with a mixed carbon source (acetate, phenol) was achieved. At 500 mg (L d)⁻¹ with phenol as the only carbon source and food/microorganism (F/M) ratio of 0.7 C-mmol (C-mmol)⁻¹, the reactor showed stable microgranules (mean diameter of 150 μm) but low PHA production. At 750 mg (L d)⁻¹, F/M ratio increased to 1.5 improving the PHA production (200 mg L⁻¹); however, granule disintegration led to sequential batch reactor failure. At low aeration rate (0.9 cm s⁻¹), larger granules (300 μm) with greater reactor stability were achieved at 750 mg (L d)⁻¹ (F/M = 0.5); however, glycogen was mainly accumulated (<i>y</i>_Gly/S = 0.24, yield per substrate unit, COD units). At 1000 mg (L d)⁻¹ (F/M = 1.5), the highest PHA production (270 mg L⁻¹, 16.3 wt%) and yield (<i>y</i>_PHA/S = 0.23) were achieved, although the effluent quality fluctuated. PHA was identified as polyhydroxybutyrate using DSC, FTIR and NMR techniques.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>High F/M ratio allowed the selection of PHA-producing AGS with phenol uptake turned towards PHA synthesis rather than microbial growth or glycogen storage. Phenol toxicity was attenuated by the development of larger granules at low shear forces. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 11","pages":"2337-2356"},"PeriodicalIF":2.4,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sorption and desorption behavior of hydroxychloroquine and ivermectin in WWTP sludge: kinetic and equilibrium insights","authors":"Bruna Giovana Locatelli,&nbsp;Juliane Maria Bergamin Bocardi,&nbsp;Ismael Laurindo Costa Junior,&nbsp;Adelmo Lowe Pletsch","doi":"10.1002/jctb.70047","DOIUrl":"https://doi.org/10.1002/jctb.70047","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Domestic sewage is one of the main pathways for the introduction of pharmaceutical contaminants into environmental compartments. During the COVID-19 pandemic, the consumption of medications such as hydroxychloroquine (HCQ) and ivermectin (IVM) increased significantly, resulting in a greater presence of these substances in ecosystems. Considering the existing knowledge gaps regarding the environmental impacts and ecological behavior of these compounds during this period, this study aimed to investigate the sorption and desorption kinetics and equilibrium of HCQ and IVM in sludge from domestic wastewater treatment plants (WWTPs).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>The pseudo-second-order model best fit the kinetic sorption data for both HCQ (<i>R</i>² = 0.91–0.99) and IVM (<i>R</i>² = 0.94–0.99), indicating that chemisorption may be the dominant mechanism. Equilibrium data were better described by the Langmuir isotherm (<i>R</i>² = 0.85–0.99 for HCQ and <i>R</i>² = 0.94–0.99 for IVM), suggesting monolayer adsorption on a homogeneous surface. The highest specific sorption capacities observed were 20.04 mg g⁻¹ for HCQ and 23.29 mg g⁻¹ for IVM. The maximum desorption percentage was 49.15% for HCQ, while no desorption of IVM was detected under experimental conditions.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>Both analytes exhibited sorptive interactions with sewage sludge, with IVM demonstrating a stronger affinity. The findings highlight concerns about the persistence and accumulation of pharmaceutical contaminants in the environment due to discharges from WWTPs. © 2025 The Author(s). <i>Journal of Chemical Technology and Biotechnology</i> published by John Wiley &amp; Sons Ltd on behalf of Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 11","pages":"2357-2370"},"PeriodicalIF":2.4,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/jctb.70047","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation of polyacrylonitrile-based nanofiber mats by electrospinning for uranium recovery","authors":"Sündüz Alemdar,&nbsp;Nursel Pekel Bayramgil","doi":"10.1002/jctb.70042","DOIUrl":"https://doi.org/10.1002/jctb.70042","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Seawater mining of uranium in a sustainable manner is an emerging approach to meet long-term nuclear energy requirements. Amidoxime-functionalized polymers are of particular interest because of their high binding affinity for uranyl ions. Nevertheless, their low reusability and low mechanical stability make them impractical. This study discusses the preparation and performance evaluation of amidoxime-functionalized electrospun polyacrylonitrile (PAN) and polyurethane (PU) nanofiber mats as adsorbents for uranium (VI) adsorption.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>PAN and PU blends were electrospun into composite nanofiber mats, which were amidoximated for nitrile groups. Structural, morphological, and thermal analyses were carried out by FT-IR, SEM, XRD, TGA, and DSC analyses. Amidoxime conversion was established by FT-IR with 94% efficiency. Uranium adsorption experiments in pH 4.1 and 25 °C conditions showed the maximum capacity of 435 mg g⁻¹ for PU-PAO nanofibers. Although pure PAO mats had a slightly higher capacity (495 mg g⁻¹), they could not be recycled easily. This contrasts with PU-PAO mats, which did not lose their integrity and could be cycled up to six times without losing their performance substantially.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>PU addition improved mechanical stability and handleability without compromising the high adsorption capability of amidoxime-functionalized nanofibers. These findings validate the use of PU-PAO composite nanofibers as efficient and sustainable adsorbents for uranium recovery from aqueous systems, like seawater. Their performance <i>vs.</i> durability ratio presents a promising direction towards industrially viable and scalable uranium recovery technologies. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 11","pages":"2299-2308"},"PeriodicalIF":2.4,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impregnation of \u0000 \u0000 \u0000 Fe\u0000 2\u0000 \u0000 \u0000 O\u0000 3\u0000 \u0000 /\u0000 Ce\u0000 \u0000 O\u0000 2\u0000 \u0000 onto activated carbon surface for the electrochemical degradation of oxytetracycline","authors":"Ameni Ayadi,&nbsp;Federica Proietto,&nbsp;Ahmed Hichem Hamzaoui,&nbsp;Mouna Jaouadi","doi":"10.1002/jctb.70041","DOIUrl":"10.1002/jctb.70041","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Antibiotic residues are persisting against biological degradation, so their presence is considered dangerous in both low and high concentrations. The removal of antibiotic pollutants by electrochemical degradation using a modified activated carbon has attracted tremendous attention.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>Granular activated carbon was modified with iron and cerium oxide. Electrochemical degradation of oxytetracycline was studied using a modified activated carbon as an electrode. The composite was characterized by scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, and by measuring of the pH of the point of zero charge. These techniques confirmed that the oxide was immobilized onto the activated carbon surface. Electrochemical degradation was determined under different conditions, such as pH, the nature and concentration of the supporting electrolyte, current density and anode type. When NaCl was used as a supporting electrolyte 98% degradation was achieved, but only 60% degradation was achieved when Na₂SO₄ was used as an electrolyte, under optimal conditions: a current density of 60 mA cm⁻², pH 3, a treatment time of 180 min and a boron-doped diamond counter-electrode. Full use of the catalytic properties of activated carbon modified by iron–cerium oxide gives a high production of ^•OH, and highly efficient degradation of oxytetracycline was observed.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>The advancements hold significant implications for environmental engineering and science, as they pave the way for more efficient electrodes. This research not only demonstrated a new kind of modified activated carbon as an effective catalyst but also offers an avenue for efficient degradation using a carbon electrode. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 10","pages":"2230-2240"},"PeriodicalIF":2.4,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145062410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biorefinery development and environmental impact assessment using two-phase exhausted olive pomace for the production of succinic acid and phenolic-rich extract","authors":"Evanthia Georgiadou,&nbsp;Stamatia Skoutida,&nbsp;Katiana Filippi,&nbsp;Sofia-Maria Ioannidou,&nbsp;Georgios F. Banias,&nbsp;Apostolis Koutinas","doi":"10.1002/jctb.70044","DOIUrl":"https://doi.org/10.1002/jctb.70044","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>This study presents the development of a biorefinery concept using exhausted olive pomace (EOP) for the production of a crude phenolic-rich extract and succinic acid.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>The crude phenolic-rich extract was obtained by ultrasound-assisted extraction using 70% (v/v) aqueous ethanol with a phenolic content of 1.22 g gallic acid equivalents (GAE) 100 g⁻¹ EOP (dry basis), an antioxidant capacity of 7.42 μg mL⁻¹ extract (based on DPPH), and an antioxidant activity index of 4.15. Alkaline treatment of the remaining solids with 1% (w/v) NaOH at 90 °C led to 63.9% lignin removal in the liquid fraction, while 87.9% of the initial glucan and 83.4% of the initial xylan remained in the pretreated solids. The hydrolysis efficiency of glucan and xylan corresponded to 42.8% and 42.9%, respectively. Subsequent fermentation with <i>Actinobacillus succinogenes</i> produced 28.1 g L⁻¹ succinic acid with 0.63 g g⁻¹ yield and 0.59 g/(L h) productivity. Life cycle assessment of the biorefinery showed a global warming potential of 0.79 kg CO₂-eq kg⁻¹ dry EOP and an abiotic depletion potential of 14.53 MJ kg⁻¹ dry EOP.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>The proposed biorefinery could produce 245 g crude phenolic-rich extract and 60 g succinic acid from 1 kg EOP. The remaining solids (136.8 g lignin and 439.9 g post-hydrolysis remaining solids) could be incinerated for energy generation in the olive pomace mill to support the drying of wet olive pomace with up to 10% moisture content. This study demonstrates a sustainable alternative process for the valorization of EOP within an integrated olive pomace mill. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 11","pages":"2309-2324"},"PeriodicalIF":2.4,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Eco-efficient recovery of non-volatile products from fermentation broth: aliphatic diols","authors":"Tamara Janković,&nbsp;Adrie J. J. Straathof,&nbsp;Siddhant Sharma,&nbsp;Anton A. Kiss","doi":"10.1002/jctb.70040","DOIUrl":"https://doi.org/10.1002/jctb.70040","url":null,"abstract":"<p>Fermentation can be used to obtain a wide variety of valuable high-boiling components. Among these components, microorganisms can produce aliphatic diols (e.g. propanediols, butanediols, etc.) in significant concentrations (e.g. 5–15 wt.%). Nonetheless, the high boiling points of these components, presence of microorganisms, and formation of by-products complicate recovery after fermentation. Hence, this perspective offers valuable insights into downstream processing options. A novel methodology was developed for recovering high-boiling components from dilute aqueous solutions, whereby both light and heavy impurities are present. The main steps in the proposed methodology are heat pump-assisted preconcentration and final purification in a dividing-wall column. These steps allow effective separation of high-purity product from water, light and heavy impurities. Furthermore, processes for recovery of 1,3-propanediol, 2,3-, 1,4- and 1,3-butanediol, designed according to the proposed methodology, were compared. Downstream processing performance is mainly determined by the product concentration in the fermentation broth, but is also influenced by the amount of impurities in the broth. © 2025 The Author(s). <i>Journal of Chemical Technology and Biotechnology</i> published by John Wiley &amp; Sons Ltd on behalf of Society of Chemical Industry (SCI).</p>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 11","pages":"2245-2250"},"PeriodicalIF":2.4,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/jctb.70040","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}