S M Hasan Shahriar Rahat , Oluwatunmise Israel Dada , Liang Yu , Helmut Kirchhoff , Shulin Chen
{"title":"Anaerobic digestion bacteria algae (ADBA): A mathematical model of mixotrophic algal growth with indigenous bacterial inhibition in anaerobic digestion effluent","authors":"S M Hasan Shahriar Rahat , Oluwatunmise Israel Dada , Liang Yu , Helmut Kirchhoff , Shulin Chen","doi":"10.1016/j.jobab.2024.12.004","DOIUrl":"10.1016/j.jobab.2024.12.004","url":null,"abstract":"<div><div>A comprehensive kinetic model called anaerobic digestion bacteria algae (ADBA) was developed to describe and predict the complex algae-bacterial system in anaerobic digestion (AD) wastewater under mixotrophic growth conditions. The model was calibrated and validated using the experimental growth data from cultivating the algae (<em>Chlorella vulgaris</em> CA1) with its indigenous bacteria in Blue Green 11 (BG-11) media and different combinations of sterilized, diluted, and raw AD effluent. Key parameters were obtained, including the distinct maximum growth rate of algae on CO<sub>2</sub> (<span><math><msub><mi>μ</mi><mrow><mrow><mi>a</mi><mo>,</mo><mi>C</mi></mrow><msub><mi>O</mi><mn>2</mn></msub></mrow></msub></math></span>, 1.23 per day) and organic carbon (<span><math><msub><mi>μ</mi><mrow><mi>a</mi><mo>,</mo><mtext>OC</mtext></mrow></msub></math></span>, 3.30 per day), the maximum growth rate of bacteria (<em>µ</em><sub>b</sub>, 1.20 per day), along with two noble parameters, i.e., the algae-bacteria interaction exponent (<em>n</em>, 0.03) and the growth inhibition coefficient (<em>a</em><sub>e</sub> = 30 000 mg/L per AU) due to effluent turbidity. The model showed a good fit with an average <em>R</em><sup>2</sup> = 0.90 in all cases adjusted with 25 kinetic parameters. This was the first model capable of predicting algal and bacterial growth in AD effluent with their competitive interactions, assuming shifting growth modes of algae on organic and inorganic carbon under light. It could also predict the removal rate of substrate and nutrients from effluent, light inhibition due to biomass shading and effluent turbidity, mass transfer rate of O<sub>2</sub> and CO<sub>2</sub> from gas phase to liquid phase, and pH-driven equilibrium between dissolved inorganic carbon components (CO<sub>2</sub>, HCO<sub>3</sub><sup>–</sup>, and CO<sub>3</sub><sup>2–</sup>). Algal growth in the strongly buffered AD effluent resulted in odor removal, turbidity reduction, and the removal of ∼80% of total ammonium-nitrogen and 90% of organic carbon. In addition to process parameter prediction, this study offered a practical solution to wastewater treatment, air pollution, and nutrient recycling, ensuring a holistic and practical approach to ecological balance.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"10 1","pages":"Pages 32-50"},"PeriodicalIF":20.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143159874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
June-Ho Choi , Myeong Rok Ahn , Chae-Hwi Yoon , Yeon-Su Lim , Jong Ryeol Kim , Hyolin Seong , Chan-Duck Jung , Sang-Mook You , Jonghwa Kim , Younghoon Kim , Hyun Gil Cha , Jae-Won Lee , Hoyong Kim
{"title":"Enhancing compatibility and biodegradability of polylactic acid/biomass composites through torrefaction of forest residue","authors":"June-Ho Choi , Myeong Rok Ahn , Chae-Hwi Yoon , Yeon-Su Lim , Jong Ryeol Kim , Hyolin Seong , Chan-Duck Jung , Sang-Mook You , Jonghwa Kim , Younghoon Kim , Hyun Gil Cha , Jae-Won Lee , Hoyong Kim","doi":"10.1016/j.jobab.2024.10.003","DOIUrl":"10.1016/j.jobab.2024.10.003","url":null,"abstract":"<div><div>This study investigated the effects of torrefaction on forest residue (FR) and its subsequent application as a bulk-loading filler in polylactic acid (PLA) composites. Torrefaction enhanced the chemical properties of FR, improving its compatibility with PLA, and the crystallinity increased from 24.9% to 42.5%. The process also improved the hydrophobicity of PLA/biomass composites, as demonstrated by the water contact angle of 76.1°, closely matching that of neat PLA (76.4°). With the introduction of 20% modified biomass properties after torrefaction treatment, the tensile strength of PLA/biomass composite increased from 58.7 to 62.3 MPa. Additionally, the addition of torrefied forest residue (TFR) accelerated biodegradation by increasing the onset of degradation and inhibiting crystallization. After 90 d, the biodegradability of PLA/biomass composites reached 94.9%, which had a 6.9% increase compared to the neat PLA (88.8%). Overall, this study highlights the potential of torrefaction in enhancing both the physical properties and biodegradability of PLA-based composites, contributing to a more sustainable approach to reducing plastic pollution.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"10 1","pages":"Pages 51-61"},"PeriodicalIF":20.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Disassembly, refinement, and reassembly: From ancient papermaking to modern materials processing","authors":"Jing Shen , Meiyun Zhang","doi":"10.1016/j.jobab.2024.11.002","DOIUrl":"10.1016/j.jobab.2024.11.002","url":null,"abstract":"<div><div>Papermaking, a cornerstone of human civilization and one of China's Four Great Inventions, exemplifies the enduring legacy of ancient ingenuity in shaping modern materials science. Originating from the groundbreaking work of Lun Cai and his team, the papermaking process involves the meticulous disassembly, refinement, and reassembly of natural fibers into cohesive sheets: a process that, while refined, has remained fundamentally unchanged for nearly 2 000 years. This work explores the pivotal role of papermaking in contemporary society within the broader context of materials science, highlighting its fundamental principles and the remarkable versatility of its scalable process. Papermaking, once central to the dissemination of knowledge worldwide, has now evolved into a key player in the sustainable production of environmentally friendly products, touching every aspect of modern life. The principles underlying papermaking have inspired the development of novel materials, with techniques such as vacuum filtration paving the way for innovations like nanopapers based on a diverse group of building blcoks. Looking ahead, the field presents significant opportunities in sustainable sourcing, the creation of eco-friendly packaging, and the development of advanced materials with applications in healthcare and beyond. The enduring relevance of papermaking lies in its adaptability, versatility, and boundless potential for future innovation.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"10 1","pages":"Pages 7-13"},"PeriodicalIF":20.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143159869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rosaria Ciriminna , Giuseppe Angellotti , Giovanna Li Petri , Francesco Meneguzzo , Cristina Riccucci , Gabriella Di Carlo , Mario Pagliaro
{"title":"Cavitation as a zero-waste circular economy process to convert citrus processing waste into biopolymers in high demand","authors":"Rosaria Ciriminna , Giuseppe Angellotti , Giovanna Li Petri , Francesco Meneguzzo , Cristina Riccucci , Gabriella Di Carlo , Mario Pagliaro","doi":"10.1016/j.jobab.2024.09.002","DOIUrl":"10.1016/j.jobab.2024.09.002","url":null,"abstract":"<div><div>Cavitation in water only, no matter whether hydrodynamic or acoustic, is a zero-waste circular economy process to convert industrial citrus processing waste into high-performance polysaccharides in high demand in a single-step at room temperature and ambient pressure using a modest amount of electricity as the only energy input. Following previous reports in which we used hydrodynamic cavitation, we now use an industrial acoustic sonicator to demonstrate the general viability of cavitation to convert biowaste residue of the industrial squeezing of pigmented sweet orange (<em>Citrus sinensis</em>) into highly bioactive “IntegroPectin” pectin and micronized cellulose “CytroCell”. From biomedicine through advanced composite membranes, said biomaterials hold great applicative potential. We conclude discussing the economic and technical feasibility of industrial implementation of the “CytroCav” process.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"9 4","pages":"Pages 486-494"},"PeriodicalIF":20.2,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142530725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comprehensive comparison of cellulose nanocrystal (CNC) drying using multi-frequency ultrasonic technology with selected conventional drying technologies","authors":"Junli Liu , Amir Malvandi , Hao Feng","doi":"10.1016/j.jobab.2024.07.003","DOIUrl":"10.1016/j.jobab.2024.07.003","url":null,"abstract":"<div><div>Cellulose nanocrystals (CNCs) have garnered increased attention due to their renewable nature, abundant feedstock availbility, and good mechanical properties. However, one of the bottlenecks for its commercial production is the drying process. Because of the low CNC concentrations in suspension after isolation, CNC drying requires the removal of a large amount of water to obtain dry products for the following utilization and saving shipping costs. A novel multi-frequency, multimode, modulated ultrasonic drying technology was developed for CNC drying to improve product quality, reduce energy consumption, and increase production rate. CNCs dried with different drying technologies were characterized by Fourier transform infrared (FT-IR) spectra analysis, X-ray diffraction (XRD) analysis, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and redispersibility to measure the quality and property changes. Under the same temperature and airflow rate, ultrasonic drying enhanced drying rates, resulting in at least a 50% reduction in drying time compared to hot air drying. The mean particle sizes of CNC from ultrasonic drying changed little with settling time, indicating good redispersibility. In addition, ultrasonic dried CNCs exhibited good stability in aqueous solutions, with the zeta potentials ranging from –35 to –65 mV. Specific energy consumption and CO<sub>2</sub> emissions of various CNC drying technologies were evaluated. Energy consumption of ultrasonic drying is significantly reduced compared to other drying technologies. Moreover, the potential CO<sub>2</sub> emissions of the fully electrified ultrasonic drying could be net zero if renewable electricity is used.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"9 4","pages":"Pages 465-485"},"PeriodicalIF":20.2,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141702649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Selective activation of CC bonds in lignin model compounds and lignin for production of value-added chemicals","authors":"","doi":"10.1016/j.jobab.2024.02.001","DOIUrl":"10.1016/j.jobab.2024.02.001","url":null,"abstract":"<div><div>Lignin is a rich renewable aromatic resource that can produce high-value-added chemicals. Lignin is regarded as one of the three major components of lignocellulosic biomass, which is composed of phenylpropane units connected by C<img>O bond and C<img>C bond. The cleavage of two chemical bonds is the main catalytic pathway in the production of chemicals and fuels from lignin. Although the cleavage of C<img>O converts lignin into valuable aromatic compounds and renewable carbon sources, selective depolymerization for C<img>C bonds is an important method to increase the yield of aromatic monomers. Therefore, in this review, we summarized the latest research trends on C<img>C bond selective cleavage in lignin and lignin model compounds, focusing on various catalytic systems, including hydrogenolysis, oxidate, photocatalysis, and electrocatalysis. By analyzing the current status of C<img>C bond breakage, the core issues and challenges related to this process and the expectations for future research were emphasized.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"9 4","pages":"Pages 433-464"},"PeriodicalIF":20.2,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139883629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Liquefied dimethyl ether as alternative extraction solvent for high γ-oryzanol rice bran oil: Systematic HSP theory and experimental evaluation","authors":"Phannipha Daisuk , Seiichi Takami , Masaki Honda , Motonobu Goto , Chonlatep Usaku , Artiwan Shotipruk","doi":"10.1016/j.jobab.2024.06.002","DOIUrl":"10.1016/j.jobab.2024.06.002","url":null,"abstract":"<div><div>This study aimed to systematically find an alternative solvent to replace hexane for the extraction of bio-oil with high <em>γ</em>-oryzanol content from rice bran (RB). The selection involved predicting solubility through Hansen solubility theory, experimental validation, determination of suitable extraction conditions, and comparison of oil quality with that of conventional hexane. A wide variety of solvents: subcritical water (SCW), supercritical carbon dioxide (SCCO<sub>2</sub>), bio-based solvents (alcohols and terpenes), and liquefied dimethyl ether (LDME), were initially assessed for rice bran oil (RBO) and <em>γ</em>-oryzanol solubility using Hansen solubility spheres. Solvents demonstrating high solubility for both RBO and <em>γ</em>-oryzanol, including LDME, ethyl acetate, acetone, and others (alcohols and SCCO<sub>2</sub>) known for effective vegetable oil extraction, were selected/identified for experimental extraction comparison. Among these, LDME performed better overall, affording greater solubility and requiring less solvent, shorter duration, lower pressure, and no additional co-solvents for equivalent extractions. Optimal conditions for LDME extraction were identified as 30 °C with a solvent-to-sample ratio of 10 mL/g and an extraction time of 10 min. Oils extracted with LDME and hexane displayed similar fatty acid compositions and no adverse effects on RB protein and carbohydrate structures after LDME extraction were observed. This study demonstrates LDME as a promising alternative to replace hexane for RBO extraction to further valorize this abundant low-cost RB residue into bio-oil and its <em>γ</em>-oryzanol and de-oil RB co-products.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"9 4","pages":"Pages 577-591"},"PeriodicalIF":20.2,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142530728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Enhanced biomass densification pretreatment using binary chemicals for efficient lignocellulosic valorization","authors":"Xinchuan Yuan , Guannan Shen , Juncheng Huo, Sitong Chen, Wenyuan Shen, Chengcheng Zhang, Mingjie Jin","doi":"10.1016/j.jobab.2024.09.004","DOIUrl":"10.1016/j.jobab.2024.09.004","url":null,"abstract":"<div><div>Many effective pretreatment methods (such as dilute acid, dilute alkali, ionic liquids, etc.) have been developed for lignocellulose upgrading, but several defaults of low working mass, high sugar loss and extra cost of solid-liquid separation and water washing hinder their large-scale application in industry. Besides, the valorization of lignin-rich residue from pretreated biomass after hydrolysis or fermentation greatly contributes to the economy and sustainability of lignocellulosic biorefinery, which is usually underestimated. This study developed a densification pretreatment with binary chemicals (densifying lignocellulosic biomass with sulfuric acid (SA) and metal salt (MS) followed by autoclave treatment ((DLCA(SA-MS)), which was conducted under mild condition (121 °C) with a biomass working mass as high as 400 kg/m<sup>3</sup>. The DLCA(SA-MS) biomass achieved over 95% sugar retention, 90% enzymatic sugar conversion and a high concentration of fermentable sugar (212.3 g/L) with superior fermentability. Furthermore, bio-adsorbent derived from DLCA(SA-MS) biomass residue was highly adsorptive and suitable for dyeing wastewater treatment, providing a feasible and eco-friendly method for lignin-rich residue valorization. These findings indicated that DLCA(SA-MS) pretreatment enables the full-component utilization of biomass and boosts the economic viability of lignocellulosic biorefinery.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"9 4","pages":"Pages 548-564"},"PeriodicalIF":20.2,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142530029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fatima-Zahra Azar , Achraf El Kasmi , Maria Ángeles Lillo-Ródenas , Maria del Carmen Román-Martínez , Haichao Liu
{"title":"Selective biomass conversion over novel designed tandem catalyst","authors":"Fatima-Zahra Azar , Achraf El Kasmi , Maria Ángeles Lillo-Ródenas , Maria del Carmen Román-Martínez , Haichao Liu","doi":"10.1016/j.jobab.2024.09.001","DOIUrl":"10.1016/j.jobab.2024.09.001","url":null,"abstract":"<div><div>Selective conversion of biomass into targeted molecules like polyols, especially, from cellulosic compounds, is being widely investigated as a sustainable process to produce biodiesel and bio-additives. The known process involves two steps, namely hydrolysis and hydrogenation. Thus, it requires two different catalytic materials or bifunctional catalysts. In this context, the present work reports a new catalytic approach based on the use of tandem catalysts, consisting of the combination of an acid solid catalyst (active for hydrolysis) and a supported metal catalyst (active for hydrogenation). Two different functionalized activated carbons and the resin Amberlyst 15 have been tested as solid acid catalysts, and Ru nanoparticles supported on the original activated carbon (SA) are the metal catalyst part of the tandem. All the tested tandem catalysts exhibited higher activity than the supported Ru catalyst did. The highest cellulose conversion and selectivity to sorbitol (70% and 86%, respectively) have been obtained over a novel tandem catalyst, which resulted from a physical mixture between a sulfuric acid modified SA carbon (SASu) and Ru loaded SA (Ru/SA), leading to a tandem catalyst (Ru/SA+SASu). This novel-designed tandem catalyst is reusable. Based on tandem catalysts with a solid-solid system combination, the adopted novel-designed catalytic approach is cost-efficient and sustainable, and can be considered promising for the green production of high-added-value chemicals.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"9 4","pages":"Pages 508-517"},"PeriodicalIF":20.2,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142530027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Valorization of palm oil refining by-product for organotin mercaptide as a polyvinyl chloride thermal stabilizer: Synthesis, efficacy and comparison to mixed metal stearate","authors":"","doi":"10.1016/j.jobab.2024.06.001","DOIUrl":"10.1016/j.jobab.2024.06.001","url":null,"abstract":"<div><div>Organotin mercaptide-based thermal stabilizer is recognized for its effectiveness in enhancing thermal stability of polyvinyl chloride (PVC). In this study, we synthesized an organotin mercaptide-based thermal stabilizer from palm fatty acid distillate, which is a by-product of palm oil refining process, and then evaluated its thermal stabilizing effects on PVC and compared its efficacy and economics to those of mixed metal stearate. The synthesized thermal stabilizer manifests as methyltin mercaptoethyl carboxylate sulfides. Both dehydrochlorination and two-roll mill discoloration tests have demonstrated the high efficacy of the resulting thermal stabilizer in stabilizing PVC, surpassing the performance of mixed metal stearate, as evidenced by the lower dosage required. The synthesized PVC thermal stabilizer not only provides effective stabilization but also presents a competitive viable alternative.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":"9 4","pages":"Pages 565-576"},"PeriodicalIF":20.2,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141277698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}