Journal of Polymers and the Environment最新文献

筛选
英文 中文
Waste Fish Oil is a Promising Substrate for Productive Synthesis of Degradable Polyhydroxyalkanoates
IF 4.7 3区 工程技术
Journal of Polymers and the Environment Pub Date : 2024-12-06 DOI: 10.1007/s10924-024-03461-9
Evgeniy G. Kiselev, Aleksey V. Demidenko, Natalia O. Zhila, Vladimir V. Volkov, Tatiana G. Volova
{"title":"Waste Fish Oil is a Promising Substrate for Productive Synthesis of Degradable Polyhydroxyalkanoates","authors":"Evgeniy G. Kiselev,&nbsp;Aleksey V. Demidenko,&nbsp;Natalia O. Zhila,&nbsp;Vladimir V. Volkov,&nbsp;Tatiana G. Volova","doi":"10.1007/s10924-024-03461-9","DOIUrl":"10.1007/s10924-024-03461-9","url":null,"abstract":"<div><p>Waste fish oils (WFOs) obtained from the wastes of <i>Sprattus balticus</i> and <i>Scomber scombrus</i> have been investigated as a new substrate for the synthesis of polyhydroxyalkanoates (PHA). WFOs produced by thermal or enzymatic methods had some differences in the ratio of fatty acids and lipid saturation. <i>C. necator</i> B-10,646 bacteria, grown in a laboratory Bio-Flo fermenter with high mass transfer characteristics and a high degree of emulsification of WFO fat, provided high productivity in all variants, superior to other substrates (sugars, glycerol, etc.). The total yield of bacterial biomass and PHA content obtained on WFO from smoked sprat heads by thermal or enzymatic method was 87.4 and 109.7 g/L and 75.6 and 81.0%, respectively, for 30 h of cultivation, which slightly exceeded the results obtained using WFO from fresh mackerel heads. Under studied conditions, bacteria utilized the entire spectrum of fatty acids in WFO lipids including polyenoic and saturated fatty acids. This ensured a high degree of utilization of WFOs by bacteria (92.3–94.7%). The synthesized PHA samples were represented by poly(3-hydroxybutyrate-<i>co</i>-3-hydroxyvalerate-<i>co</i>-3-hydroxyhexanoate) with similar degrees of crystallinity, molecular weight and temperature characteristics. The studied WFOs can be recommended as a new and renewable substrate for productive synthesis of PHA.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 2","pages":"1022 - 1034"},"PeriodicalIF":4.7,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108642","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}
引用次数: 0
Structural Modification of Polyacrylic Resin by Hydroxamic acid to Increase the Adsorption Performance for rare Earth ions
IF 4.7 3区 工程技术
Journal of Polymers and the Environment Pub Date : 2024-12-04 DOI: 10.1007/s10924-024-03463-7
Guangyu Duan, Chunjie Zhou, Xiaoya Li, Zhanfang Cao, Feipeng Jiao, Hong Zhong, Xin Ma, Shuai Wang
{"title":"Structural Modification of Polyacrylic Resin by Hydroxamic acid to Increase the Adsorption Performance for rare Earth ions","authors":"Guangyu Duan,&nbsp;Chunjie Zhou,&nbsp;Xiaoya Li,&nbsp;Zhanfang Cao,&nbsp;Feipeng Jiao,&nbsp;Hong Zhong,&nbsp;Xin Ma,&nbsp;Shuai Wang","doi":"10.1007/s10924-024-03463-7","DOIUrl":"10.1007/s10924-024-03463-7","url":null,"abstract":"<div><p>Typically, traditional rare earth element (REE) extraction processes generate industrial effluents rich in REEs, resulting in significant resource waste and environmental pollution. Hence, there are important practical applications for the preparation of adsorbents with high adsorption efficiency and superior stability for the recovery of REEs. In this work, a poly(6-(N-acetyl-acryloylamino) hexyl hydroxamic acid) (PAAHA) chelating resin was successfully prepared by grafting 6-acetyl amino hexyl hydroxamic acid onto polyacrylic resin (D113). The PAAHA chelating resin was utilized for the removal of La³⁺, Ce³⁺, and Y³⁺, and the maximum uptake capacities determined from the batch adsorption experiments were 2.10, 2.38, and 3.98 mmol/g, respectively, which were 3.09, 3.05, and 9.05 times greater than those of the D113 resin. The results demonstrated that the adsorption process was consistent with the pseudo-second-order kinetic and Langmuir isotherm models, suggesting that monolayer chemisorption was the dominant process. Concurrently, five successive adsorption‒desorption cycles revealed that the PAAHA chelating resin displayed remarkable reproducibility and stability. Notably, the –CONHOH group exhibited a marked affinity for REEs, resulting in the formation of stable five-membered rings via mechanism characterization. In summary, this resin represents a novel strategy for designing adsorbents and shows considerable promise for the remediation of mining tailings containing REEs.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><img></picture></div></div></figure></div></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 2","pages":"1006 - 1021"},"PeriodicalIF":4.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107829","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}
引用次数: 0
Design a Coordinated Nano-Platform for Coumarin-Regulated Delivery in Line with the Biological Systems’ Growth Phases
IF 4.7 3区 工程技术
Journal of Polymers and the Environment Pub Date : 2024-11-30 DOI: 10.1007/s10924-024-03458-4
Rojan Akhbarati, Rahebeh Amiri Dehkharghani, Soheila Zamanlui Benisi
{"title":"Design a Coordinated Nano-Platform for Coumarin-Regulated Delivery in Line with the Biological Systems’ Growth Phases","authors":"Rojan Akhbarati,&nbsp;Rahebeh Amiri Dehkharghani,&nbsp;Soheila Zamanlui Benisi","doi":"10.1007/s10924-024-03458-4","DOIUrl":"10.1007/s10924-024-03458-4","url":null,"abstract":"<div><p>A full-control design can significantly improve drug release and cell proliferation for tissue engineering applications in medicine. The present investigation encompassed a molecular docking study which was performed to investigate the interaction of selected active ligand (coumarin) with the L929 mouse fibroblast cell line protein as the receptor. After that, the coumarin was extracted from the roots of p.ferulacea and its subsequent nanoencapsulation with polycaprolactone, employing the coacervation technique to achieve a narrow distribution of nano particle sizes. Subsequently, the electrospinning technique was utilized to apply a second coating to the nano-encapsulated coumarin. Polyvinyl alcohol and gelatin compounds were used to produce electrospun nanofibrous scaffolds for their similarity to the extracellular matrix (ECM). This coordinated nano platform aimed to assess its effectiveness in regulating drug release, evaluate its biocompatibility, and examine its impact on L929 cell proliferation according to the Lag and Log phases of their growth. In silico analyses demonstrated significant interactions and high binding energy values between the coumarin ligand and essential residues of the L929 mouse fibroblast proteins. The results of the experiments were checked using analyses of <sup>1</sup>H NMR, FTIR, UV, SEM, mechanical properties, DSC, HRTEM, and HPLC. The biological effects and cell proliferation were conducted employing the MTT method (up to 5 days). Notably, no cytotoxicity was detected throughout the assessment. In this way, it is feasible to create a synergistic nano delivery system by delaying the release of the drug into account the timing of distinct cell lines’ development phases.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 2","pages":"990 - 1005"},"PeriodicalIF":4.7,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143110076","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}
引用次数: 0
Preparation of Biocompatible Antimicrobial Polymer Embedded with Ricinoleic Acid
IF 4.7 3区 工程技术
Journal of Polymers and the Environment Pub Date : 2024-11-29 DOI: 10.1007/s10924-024-03459-3
Manohara Dhulappa Jalageri, Shreya Kanth, Shriya C Shetty, Prakash Patil, K R Jyothi, Akshatha Nagaraja
{"title":"Preparation of Biocompatible Antimicrobial Polymer Embedded with Ricinoleic Acid","authors":"Manohara Dhulappa Jalageri,&nbsp;Shreya Kanth,&nbsp;Shriya C Shetty,&nbsp;Prakash Patil,&nbsp;K R Jyothi,&nbsp;Akshatha Nagaraja","doi":"10.1007/s10924-024-03459-3","DOIUrl":"10.1007/s10924-024-03459-3","url":null,"abstract":"<div><p>Global health is in jeopardy by the rising emergence of antibiotic drug resistance in pathogenic bacteria. Methicillin-resistant <i>Staphylococcus aureus</i> (MRSA) is a widespread bacterial infection that causes considerable morbidity and mortality on a global level. Finding promising materials for MRSA continues to prove challenging, and it is essential to quest for new and advanced polymeric therapeutics to effectively treat MRSA infections. Ricinoleic acid, a castor oil extract with an unsaturated omega-9 fatty acid and hydroxy acid has sparked growing interest because of its broad-spectrum antibacterial properties. Herein, ricinoleic acid-based polymer is synthesized to combat multidrug-resistant bacteria and few pathogenic microorganisms. The ricinoleic acid polymer (RAP) exhibited efficient antimicrobial activity against <i>E. coli</i>,<i> P. aeruginosa</i>,<i> C. albicans</i>,<i> S. aureus</i>, and MRSA with a MIC of 1.25 mg/mL, 10 mg/mL, and 0.62 mg/mL, 20 mg/mL and 10 mg/mL, respectively. Time-kill assay revealed that the polymer showed biostatic activity against all the tested pathogens. Cytotoxicity assay revealed the polymer showed 100% biocompatibility even at a higher concentration of 50 µg/mL. Effective antibacterial properties, particularly against MRSA and few pathogenic microbes, and good biocompatibility of RAP make it a promising material in surface coatings and hospital-acquired infections.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 2","pages":"1216 - 1231"},"PeriodicalIF":4.7,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10924-024-03459-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143110146","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}
引用次数: 0
Study of Wine Grape Pomaces from Different Vintages Regarding Their Use as Reliable Sustainable Antioxidants in Biobased Poly(Butylene Succinate)
IF 4.7 3区 工程技术
Journal of Polymers and the Environment Pub Date : 2024-11-29 DOI: 10.1007/s10924-024-03456-6
Benedikt T. Hiller, Lea Schübel, Mirko Rennert, David Krieg, Michael Nase, Florian Puch
{"title":"Study of Wine Grape Pomaces from Different Vintages Regarding Their Use as Reliable Sustainable Antioxidants in Biobased Poly(Butylene Succinate)","authors":"Benedikt T. Hiller,&nbsp;Lea Schübel,&nbsp;Mirko Rennert,&nbsp;David Krieg,&nbsp;Michael Nase,&nbsp;Florian Puch","doi":"10.1007/s10924-024-03456-6","DOIUrl":"10.1007/s10924-024-03456-6","url":null,"abstract":"<div><p>Biopolyesters such as poly(butylene succinate) (PBS) show great potential to be used as biobased alternatives to conventional petroleum-based polyolefins. To access technical applications, biobased materials are mostly stabilized using conventional additives, which impair their biobased character. Wine grape pomace (WP), a largely unused, low-value by-product of winemaking, shows great potential to improve the thermo-oxidative stability. Since WP is a natural material, annual variations must be considered for its use as stabilizing bio-filler on an industrial scale. This study investigates the impact of annual variations of WP on the stabilizing effects in PBS. WP of two different varieties and three vintages were studied. The composition and properties of the native by-products were analyzed, and WP-based functional fillers were prepared by industrial mill-drying. The bio-fillers obtained were analyzed regarding their physical, thermal, biochemical, and antioxidant properties and blended into PBS with filler contents up to 20 wt.-% by twin-screw extrusion. The biocomposites’ thermal and thermo-oxidative properties were investigated subsequently. All WP varieties and vintages increased the thermo-oxidative stability of PBS by at least 24% at a filler content of 3 wt.-%, demonstrating the potential of WP as a reliable stabilizer. However, the maximum stabilization effect achieved varied slightly. The results of this study showed that minor differences in the bio-filler properties can be related to meteorological data, while the antioxidant activity, pH, and fat content could be used as bioanalytical indicators to evaluate the thermo-oxidative stabilization effects of WP-based functional fillers to enable reliable industrial applications of WP as a polymer stabilizer.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 2","pages":"963 - 989"},"PeriodicalIF":4.7,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10924-024-03456-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109850","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}
引用次数: 0
In-situ Preparation of Highly Efficient Antibacterial Modified Pectin Using Zeolitic Imidazolate Framework
IF 4.7 3区 工程技术
Journal of Polymers and the Environment Pub Date : 2024-11-28 DOI: 10.1007/s10924-024-03460-w
Hanieh Hamedi, Jahanghir Azizi, Siamak Javanbakht, Reza Mohammadi
{"title":"In-situ Preparation of Highly Efficient Antibacterial Modified Pectin Using Zeolitic Imidazolate Framework","authors":"Hanieh Hamedi,&nbsp;Jahanghir Azizi,&nbsp;Siamak Javanbakht,&nbsp;Reza Mohammadi","doi":"10.1007/s10924-024-03460-w","DOIUrl":"10.1007/s10924-024-03460-w","url":null,"abstract":"<div><p>With rising concerns about antibiotic resistance globally, exploring innovative antibacterial strategies is vital for public health. This work aimed innovatively to improve the biological efficacy of pectin (Pec) hydrogel beads by synergistically utilizing an antibacterial zeolitic imidazolate metal-organic framework (ZIF-8) and tetracycline (TC). ZIF-8 was incorporated at various concentrations within the hydrogel matrix to end this using an in-situ synthesis technique. TC was also pre-loaded into Pec hydrogel beads to further improve their antibacterial features. The application of diverse analysis techniques validated the successful fabrication of nanocomposites. In-vitro Zn<sup>2+</sup> and TC release were considered by simulating the human digestive system, indicating a sustained and controlled release rate during 8 h (pH 1.2:6.8:7.4 = 20%:20%:60%). Antibacterial tests displayed inhibition zones of 14 ± 0.5 mm and 12 ± 0.5 mm against <i>Escherichia coli</i> and <i>Staphylococcus aureus</i> bacteria. Additionally, the MTT assay displayed potent cytotoxicity (&gt; 70% cell viability after 48 h) for the human colon adenocarcinoma HT29 cell line. These results suggest that the developed nanocomposites have promising potential as an antibacterial bio-platform that is effective against resistant pathogens commonly found in the gastrointestinal tract.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 2","pages":"945 - 962"},"PeriodicalIF":4.7,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143110081","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}
引用次数: 0
Degradable pH-Sensitive Calcium-Crosslinked Tragacanth Gum/β-Cyclodextrin/Sodium Alginate Hydrogel Microspheres Prepared via Ionotropic Gelation Technique for Hydrophobic Drug Delivery
IF 4.7 3区 工程技术
Journal of Polymers and the Environment Pub Date : 2024-11-26 DOI: 10.1007/s10924-024-03449-5
Priyanka Meena, Poonam Singh, Sudhir G. Warkar
{"title":"Degradable pH-Sensitive Calcium-Crosslinked Tragacanth Gum/β-Cyclodextrin/Sodium Alginate Hydrogel Microspheres Prepared via Ionotropic Gelation Technique for Hydrophobic Drug Delivery","authors":"Priyanka Meena,&nbsp;Poonam Singh,&nbsp;Sudhir G. Warkar","doi":"10.1007/s10924-024-03449-5","DOIUrl":"10.1007/s10924-024-03449-5","url":null,"abstract":"<div><p>Sodium alginate (SA) hydrogel microspheres are attracting interest in biomedical applications due to their easy degradation and non-toxic nature. However, their high swelling capacity and limited loading efficiency for hydrophobic drugs hinder their application in controlled drug release. The objective of the work is to develop smart vehicles that show effective loading and controlled release of hydrophobic drug. In this study, a series of tragacanth gum/β-cyclodextrin/sodium alginate (TG/β-CD/SA) hydrogel microspheres were designed via the ionotropic gelation method for delivery of hydrophobic drug aspirin. The effect of variation in TG, SA, and β-CD concentration on hydrogel microspheres swelling (%) was examined. The hydrogel microspheres were analyzed using Powder X-ray Diffraction (PXRD), Attenuated Total Reflection-Fourier Transform Infrared spectroscopy (ATR-FTIR), and Scanning Electron Microscopy (SEM) techniques. ATR-FTIR confirmed the successful synthesis of crosslinked TG/β-CD/SA hydrogel microspheres. PXRD showed that the microspheres are amorphous and that the drug is uniformly dispersed within the hydrogel. SEM revealed that the polymeric network has a porous and spherical surface morphology. The drug loading (%), sol–gel fraction (%), degradation (%), and rheological studies were investigated. The in vitro analysis shows a controlled release pattern at pH 1.2 and 7.4 in the TG/β-CD/SA hydrogel. The rheological analysis revealed that the elastic nature is dominant over the viscous one (G’ &gt; G”) in synthesized TG/β-CD/SA hydrogel microspheres. The cytotoxicity evaluations conducted on the HCT-116 cell line indicate the excellent biocompatibility (87.9%) of the hydrogel. The degradation profile of the hydrogel microsphere in pH 7.4 demonstrates complete degradation (100%). Hence, the TG/β-CD/SA hydrogel microsphere reflects its potential as a non-toxic, degradable, and pH-dependent drug delivery system.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 2","pages":"928 - 944"},"PeriodicalIF":4.7,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109505","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}
引用次数: 0
Modeling Degradation Behavior of (Bio)Degradable Polymers for Medical Devices: A Comparative Review of Physio-chemical Approaches
IF 4.7 3区 工程技术
Journal of Polymers and the Environment Pub Date : 2024-11-25 DOI: 10.1007/s10924-024-03376-5
Saeed Sanjari, Shahram Etemadi Haghighi, Payam Saraeian, Ali Alinia-ziazi
{"title":"Modeling Degradation Behavior of (Bio)Degradable Polymers for Medical Devices: A Comparative Review of Physio-chemical Approaches","authors":"Saeed Sanjari,&nbsp;Shahram Etemadi Haghighi,&nbsp;Payam Saraeian,&nbsp;Ali Alinia-ziazi","doi":"10.1007/s10924-024-03376-5","DOIUrl":"10.1007/s10924-024-03376-5","url":null,"abstract":"<div><p>This review delves into the physio-chemical modeling of widely used (bio)degradable polymers such as polylactide (PLA), polyglycolide (PGA), and polycaprolactone (PCL), emphasizing the interplay between environmental conditions, chemical reactions, and material alterations. It utilizes structural equations and reaction–diffusion approaches to model changing structural properties during degradation. This review explores recent advances in physio-chemical modeling techniques, offering insights into predicting degradation kinetics, molecular weight evolution, and mass loss. This comprehensive understanding is essential for tailoring the degradation profiles of (bio)degradable polymers, optimizing their performance, and reducing environmental impact. Additionally, the review covers various other modeling approaches, including the multiscale method and the hybrid method, providing a holistic view of the current state of (bio)degradable polymer degradation modeling.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 2","pages":"660 - 697"},"PeriodicalIF":4.7,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109284","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}
引用次数: 0
Statistical Design-Driven Optimization of Polyhydroxy-Butyrate (PHB) Production Using Sugarcane Bagasse by Brevibacterium sp. (PP989436) Strain
IF 4.7 3区 工程技术
Journal of Polymers and the Environment Pub Date : 2024-11-20 DOI: 10.1007/s10924-024-03450-y
R. Preethi Rathna, S. Naveen Kishore, M. Kulandhaivel
{"title":"Statistical Design-Driven Optimization of Polyhydroxy-Butyrate (PHB) Production Using Sugarcane Bagasse by Brevibacterium sp. (PP989436) Strain","authors":"R. Preethi Rathna,&nbsp;S. Naveen Kishore,&nbsp;M. Kulandhaivel","doi":"10.1007/s10924-024-03450-y","DOIUrl":"10.1007/s10924-024-03450-y","url":null,"abstract":"<div><p>Cost-effective methods for producing Polyhydroxybutyrate (PHB) can make large-scale bioplastic manufacturing economically viable. This study aimed to optimize PHB synthesis using sugarcane bagasse, a renewable and inexpensive raw material, promoting sustainability by reducing waste and minimizing reliance on non-renewable resources. Soil organisms capable of PHB production were identified using Sudan Black B staining, and <i>Brevibacterium</i> sp. (PP989436) was selected for further study. The production process was optimized using Response Surface Methodology (RSM) and Central Composite Design (CCD) with the statistical analysis showing a significant effect of the optimized medium on PHB production (F-value: 5.17, p-value: &lt;0.005) significantly enhancing PHB yield compared to an unoptimized medium. The optimized conditions resulted in a PHB yield of 7.4 g/L from 12.2 g/L dry biomass (60.65%). PHB characterization was performed using FTIR, NMR, and TGA, and a PHB film was synthesized for evaluation. No cytotoxic effects were observed in MTT and Brine Shrimp Lethality assays. This optimized, sustainable production process presents significant potential for industrial-scale applications, offering an environmentally friendly alternative to petroleum-based plastics.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 2","pages":"910 - 927"},"PeriodicalIF":4.7,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109064","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}
引用次数: 0
Ternary Synergistic Toughening of Biodegradable Polylactic acid Foams by Elastomer, Rolling and Supercritical Fluid Foaming for Enhanced Anisotropy
IF 4.7 3区 工程技术
Journal of Polymers and the Environment Pub Date : 2024-11-20 DOI: 10.1007/s10924-024-03452-w
Huan Xiao, Minghao Zhou, Fengkun Sun, Xincheng Song, An Huang
{"title":"Ternary Synergistic Toughening of Biodegradable Polylactic acid Foams by Elastomer, Rolling and Supercritical Fluid Foaming for Enhanced Anisotropy","authors":"Huan Xiao,&nbsp;Minghao Zhou,&nbsp;Fengkun Sun,&nbsp;Xincheng Song,&nbsp;An Huang","doi":"10.1007/s10924-024-03452-w","DOIUrl":"10.1007/s10924-024-03452-w","url":null,"abstract":"<div><p>Polylactic acid (PLA) is a widely used biodegradable polymer, but its brittleness severely limits its further application. This study explores the preparation of anisotropic polylactic acid/thermoplastic polyurethane (PLA/TPU) foam through melt blending with elastomers, rolling, and supercritical fluid foaming (SCF), which substantially enhances the toughness of PLA. Results indicate that the crystallinity and elongation at break of PLA/TPU blend improve with increasing rolling temperature and rolling rate. Notably, at a rolling temperature and a rolling rate of 50%, the elongation at break for the PLA/TPU blends increases from 4.0 to 59.0%. In addition, SCF processing yields an anisotropic, highly oriented, and elongated cell structure within PLA/TPU foam. This cellular architecture further elevates the elongation at break of the rolled PLA/TPU blend to 76.8% and 1820.0%. This research offers a straightforward, environmentally friendly, and scalable method for fabricating high-strength PLA-based foam materials, equipping them with functionalities such as buffering, sound absorption, shock absorption, heat preservation, etc., which is suitable for electronics, home appliances, sports and other fields.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 2","pages":"885 - 898"},"PeriodicalIF":4.7,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109066","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}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信