Sustainable Chemistry for the Environment最新文献

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Starch, pectin and chitosan-based bioplastics with silver nanoparticles: An eco-friendly alternative for the food industry 淀粉,果胶和壳聚糖为基础的生物塑料与银纳米颗粒:食品工业的环保替代品
Sustainable Chemistry for the Environment Pub Date : 2025-04-09 DOI: 10.1016/j.scenv.2025.100246
Bruno Rafael Nogueira , Bianca Pizzorno Backx , Thais Delazare
{"title":"Starch, pectin and chitosan-based bioplastics with silver nanoparticles: An eco-friendly alternative for the food industry","authors":"Bruno Rafael Nogueira ,&nbsp;Bianca Pizzorno Backx ,&nbsp;Thais Delazare","doi":"10.1016/j.scenv.2025.100246","DOIUrl":"10.1016/j.scenv.2025.100246","url":null,"abstract":"<div><div>Pollution from non-degradable materials is currently a socio-environmental obstacle that afflicts the world. In response to this, the development of bioplastics has become an interesting option to replace the use of synthetic materials in various industries, including the food industry. Bioplastics are developed based on biodegradable materials, such as polysaccharides, proteins and their derivatives. The decision was made to create films with pectin and starch in a chitosan matrix, aiming at their gelling and thickening properties. Finally, in addition to focusing the research on the production of biodegradable bioplastics, the article also seeks to address the study of silver nanoparticles, whose antimicrobial action allows their use in the food industry. This article will describe the production of bioplastics based on these biopolymers and silver nanoparticles and their potential applications in the food sector as a replacement for conventional plastics, such as PVC films. Thus, the research article proposes the development of highly efficient bioplastics that not only eliminate potential health and environmental risks but also offer a hopeful solution to this urgent issue.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"10 ","pages":"Article 100246"},"PeriodicalIF":0.0,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799802","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}
引用次数: 0
Applications of nanotechnology in fertilizers: A review study 纳米技术在肥料中的应用:综述研究
Sustainable Chemistry for the Environment Pub Date : 2025-04-08 DOI: 10.1016/j.scenv.2025.100247
Shivam Kumar , Yagyavalkya Sharma , Vishal Khandelwal , Kalpana Rawat , Anjali Patil
{"title":"Applications of nanotechnology in fertilizers: A review study","authors":"Shivam Kumar ,&nbsp;Yagyavalkya Sharma ,&nbsp;Vishal Khandelwal ,&nbsp;Kalpana Rawat ,&nbsp;Anjali Patil","doi":"10.1016/j.scenv.2025.100247","DOIUrl":"10.1016/j.scenv.2025.100247","url":null,"abstract":"<div><div>The ability of any country to grow depends on its ability to produce food and resources for its people that are high in nutrients or values. However, its growth is being hampered by various factors such as soil quality, water quality, climate change, and overcrowding of any population. Due to population expansion, it is anticipated that global food consumption will increase by over 70 % by 2050. Less nutrients and contaminants in soil are a big problem since they can harm a crop’s ability to grow and develop, as they negatively affect agriculture. Chemical fertilizers play an important role in the growth of the agricultural industry, but they can also have reverse impacts on the environment and human health. Approximately half of all chemical pesticides and fertilizers are ineffective due to leaching, which leads to nutrient imbalances and can contaminate water sources, posing threats to aquatic ecosystems and human health. Nanotechnology, deals with nanoparticles, can improve crop yields and quality through enhanced plant growth and disease resistance mechanisms. Nano fertilizers can be synthesized chemically, physically, and biologically from the plants. The biological method is the most effective for the synthesis of nanoparticles and nano fertilizers due to its cost effective, and environment-friendly nature. These biocompatible and non-toxic nanoparticles are suitable for various agricultural applications without any harmful impacts on the environment or human health. Therefore, the review study of this innovative approach could enhance the understanding of revolutionizing sustainable agriculture practices through nanoparticles.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"10 ","pages":"Article 100247"},"PeriodicalIF":0.0,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Current advances in Microbial Carbon Capture Cells (MCC) – A unique bioelectrochemical system for sustainable future 微生物碳捕获细胞(MCC)的研究进展——一种面向可持续未来的独特生物电化学系统
Sustainable Chemistry for the Environment Pub Date : 2025-03-23 DOI: 10.1016/j.scenv.2025.100244
K. Priyadharshini, Subramaniapillai Niju
{"title":"Current advances in Microbial Carbon Capture Cells (MCC) – A unique bioelectrochemical system for sustainable future","authors":"K. Priyadharshini,&nbsp;Subramaniapillai Niju","doi":"10.1016/j.scenv.2025.100244","DOIUrl":"10.1016/j.scenv.2025.100244","url":null,"abstract":"<div><div>Carbon sequestration is considered a potential solution to reduce CO<sub>2</sub> emissions and slow down the rate of climate change. Scientists are constantly searching for cost-effective ways to capture carbon on a large scale. One of the sustainable methods to capture carbon is biological sequestration, where CO<sub>2</sub> is absorbed through photosynthesis to create valuable biomass. Microbial Carbon Capture Cell (MCC) is a type of bioelectrochemical system that can use CO<sub>2</sub> and organic substrate, such as wastewater, to produce biomass and generate bioelectricity. Although it is a promising technology, it still needs further development to become a competitive option for a sustainable future. This review article will delve into the principle of MCC, its advantages over traditional methods, the types of substrates and microbes commonly employed, recent developments, and factors that affect its performance. Moreover, in this analysis, the current body of research on MCC has been evaluated and potential areas for future study have also been proposed.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"10 ","pages":"Article 100244"},"PeriodicalIF":0.0,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698150","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}
引用次数: 0
Kinetics and characterization of Gmelina arborea biolubricant via two-step transesterification 两步酯交换反应制备小木香生物润滑剂的动力学与表征
Sustainable Chemistry for the Environment Pub Date : 2025-03-22 DOI: 10.1016/j.scenv.2025.100240
M. Hadiza , S. Bilal , S.T. Al-Humairi , O. A Olanrewaju , A. Aliyu
{"title":"Kinetics and characterization of Gmelina arborea biolubricant via two-step transesterification","authors":"M. Hadiza ,&nbsp;S. Bilal ,&nbsp;S.T. Al-Humairi ,&nbsp;O. A Olanrewaju ,&nbsp;A. Aliyu","doi":"10.1016/j.scenv.2025.100240","DOIUrl":"10.1016/j.scenv.2025.100240","url":null,"abstract":"<div><div>The increasing focus on environmental sustainability and the transition to renewable resources have driven interest in bio-based lubricants. Nonedible oils, such as those derived from <em>Gmelina arborea</em> seeds, present a viable alternative to conventional petroleum-based biolubricants. This study investigates the production and characterization of biolubricants from <em>Gmelina arborea</em> seed oil using a two-step process. Initially, the oil was transesterified with methanol to produce biodiesel, followed by esterification with trimethylolpropane (TMP) to obtain the final biolubricant. The optimized process yielded a maximum conversion of 91.7 % within 120 minutes, adhering to second-order kinetics with a rate constant of 0.001 wt/wt/min and an activation energy of 6.84 kJ/mol. Compositional analysis revealed a predominance of tri-esters (83.65 %) and esters (16.35 %). The oxidative stability of the resulting biolubricant meets the EN 14214 standards, while its viscosity characteristics align with ISO VG32 and VG46, with potential for VG68 after minor modification.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"10 ","pages":"Article 100240"},"PeriodicalIF":0.0,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683840","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}
引用次数: 0
An experimental investigation of mechanical properties of concrete composites reinforced with PET fibers as per ASTM standard 按ASTM标准对PET纤维增强混凝土复合材料力学性能进行了试验研究
Sustainable Chemistry for the Environment Pub Date : 2025-03-20 DOI: 10.1016/j.scenv.2025.100241
Hammad Khalid , Yasir Yasin , Muhammad Umer Farooq , Usman Munir , Mumtaz A. Qaisrani , Shahnaz Shahani
{"title":"An experimental investigation of mechanical properties of concrete composites reinforced with PET fibers as per ASTM standard","authors":"Hammad Khalid ,&nbsp;Yasir Yasin ,&nbsp;Muhammad Umer Farooq ,&nbsp;Usman Munir ,&nbsp;Mumtaz A. Qaisrani ,&nbsp;Shahnaz Shahani","doi":"10.1016/j.scenv.2025.100241","DOIUrl":"10.1016/j.scenv.2025.100241","url":null,"abstract":"<div><div>Waste plastic needs to be utilized effectively and has attracted more attention nowadays, particularly in developing countries in recent years. One of the methods to address this issue is to reuse the waste plastic in concrete. For this purpose, a green concrete is proposed, which is a combination of concrete with waste Polyethylene terephthalate (PET) fibers having strength characteristics comparable to or exceeding that of render concrete. The concept of green concrete involves using discarded plastic bottles, which, if disposed of directly into landfills, are not biodegradable. PET fibers were used to enhance the mechanical properties of the concrete. Concrete grade M20 was selected for the mix design for this specific research work. The Concrete samples were prepared using ordinary Portland Cement in accordance with ASTM (C31/C31M, 2019) by mixing proportions as per IS10262, 2009. The mechanical properties of this new green concrete have been studied by adding various volumetric percentages of PET. This study demonstrates a 13 % improvement in compressive strength and 50 % improvement in split tensile strength after 7 days and 28 days of curing, respectively. Therefore, it provides an alternative and a better approach to reduce PET waste and improve concrete strength.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"10 ","pages":"Article 100241"},"PeriodicalIF":0.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698149","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}
引用次数: 0
Comprehensive insights into biological and bio-electrochemical treatment of the sago industry wastewater: Challenges and future perspectives 西米工业废水生物和生物电化学处理的综合见解:挑战和未来展望
Sustainable Chemistry for the Environment Pub Date : 2025-03-18 DOI: 10.1016/j.scenv.2025.100242
Subramaniapillai Niju , V. Shruthi, K. Priyadharshini
{"title":"Comprehensive insights into biological and bio-electrochemical treatment of the sago industry wastewater: Challenges and future perspectives","authors":"Subramaniapillai Niju ,&nbsp;V. Shruthi,&nbsp;K. Priyadharshini","doi":"10.1016/j.scenv.2025.100242","DOIUrl":"10.1016/j.scenv.2025.100242","url":null,"abstract":"<div><div>The food industrial sector holds a crucial position, as it satisfies the basic human need for sustenance while contributing to economic growth. Within this sector, the sago industry plays a vital role in the small-scale industrial sector and contributes to the local economy. However, the processing of tapioca roots requires a large quantity of water and simultaneously generates a large volume of the wastewater. The wastewater generated is highly organic in nature, which poses a serious threat to the environment if untreated. Conventional treatment methods are highly expensive and struggle to effectively manage the high pollutant load. So, there is a need for sustainable and cost-efficient treatment options. Biological treatment methods, particularly use of anaerobic processes, along with aerobic methods, are highly effective in reducing Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD) in sago wastewater because of its organic Content. However, these methods face enormous challenges, such as the need for the optimized operational conditions when dealing with varying wastewater compositions. In context to that the bioelectrochemical system, MFCs offers a sustainable approach by combining wastewater treatment along with bioelectricity generation. Use of this technique is highly advantageous, including improved COD removal and energy recovery. At the same time, they face some of the notable challenges, including scalability of the system performance. This review provides detailed knowledge on the characteristics nature of the sago wastewater and highlights the importance of biological treatment methods, pinpointing on aerobic and anaerobic treatments, as well as bio-electrochemical systems, emphasizing their role in COD removal and power generation.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"10 ","pages":"Article 100242"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683829","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}
引用次数: 0
Facile preparation of triangular-like polycrystalline ceria as supporting carrier in catalysis exemplified by Ni/CeO2 catalyzed oxidation and hydrogenation reactions 以Ni/CeO2催化氧化和加氢反应为例,制备三角形多晶二氧化铈作为负载载体
Sustainable Chemistry for the Environment Pub Date : 2025-03-17 DOI: 10.1016/j.scenv.2025.100243
Sofia Stefa , Maria Lykaki , Georgios Varvoutis , Maria Zografaki , Vassilios D. Binas , George E. Marnellos , Michalis Konsolakis
{"title":"Facile preparation of triangular-like polycrystalline ceria as supporting carrier in catalysis exemplified by Ni/CeO2 catalyzed oxidation and hydrogenation reactions","authors":"Sofia Stefa ,&nbsp;Maria Lykaki ,&nbsp;Georgios Varvoutis ,&nbsp;Maria Zografaki ,&nbsp;Vassilios D. Binas ,&nbsp;George E. Marnellos ,&nbsp;Michalis Konsolakis","doi":"10.1016/j.scenv.2025.100243","DOIUrl":"10.1016/j.scenv.2025.100243","url":null,"abstract":"<div><div>Ceria is a reducible oxide that has been extensively employed as supporting carrier in catalysis due to its unique redox and structural properties in combination with its strong interaction with the active phases. Recently, the synthesis of ceria nanostructures with uniform size and morphology has become a topic of extensive scientific interest in catalysis. Therefore, the combination of earth-abundant and cost-effective transition metals with fine-tuned ceria carriers could provide a platform for multifunctional materials in several energy and environmental applications. Herein, we originally explore the facile synthesis of ceria particles of triangular-like morphology with improved textural and structural characteristics and their subsequent application as supporting carrier of nickel active phase. The as-prepared Ni/CeO<sub>2</sub> catalysts were thoroughly characterized and catalytically assessed for both oxidation (CO oxidation) and reduction (CO<sub>2</sub> hydrogenation) processes to demonstrate the effectiveness of ceria triangular structures as supporting materials in catalysis. The results clearly revealed the pivotal role of ceria nanostructure on the physicochemical properties and in turn on the catalytic performance of the nickel-ceria binary system. The improved reducibility and oxygen kinetics of ceria carrier, along with its abundance in structural defects and Ce<sup>3+</sup> species, could be considered as the dominant factors towards determining the catalytic performance, offering highly active and selective ceria-based transition metal catalysts.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"10 ","pages":"Article 100243"},"PeriodicalIF":0.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683830","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}
引用次数: 0
Comparison of physical, chemical, physico-chemical, and enzymatic pretreatment of paddy straw for ethanol production 稻秆生产乙醇的物理、化学、物理化学和酶处理的比较
Sustainable Chemistry for the Environment Pub Date : 2025-03-14 DOI: 10.1016/j.scenv.2025.100239
Sudarshan Sahu , Urbi Bansal , Gursharan Singh , Shailendra Kumar Arya
{"title":"Comparison of physical, chemical, physico-chemical, and enzymatic pretreatment of paddy straw for ethanol production","authors":"Sudarshan Sahu ,&nbsp;Urbi Bansal ,&nbsp;Gursharan Singh ,&nbsp;Shailendra Kumar Arya","doi":"10.1016/j.scenv.2025.100239","DOIUrl":"10.1016/j.scenv.2025.100239","url":null,"abstract":"<div><div>The global shift towards renewable energy has heightened the importance of bioethanol as a sustainable alternative to fossil fuels, addressing environmental concerns and reducing greenhouse gas emissions. Sustainable chemistry offers innovative solutions for converting agricultural residues into valuable biofuels, yet challenges in optimizing pretreatment and enzymatic processes persist. This study addresses these gaps by systematically comparing physical, chemical, physicochemical, and enzymatic pretreatments to enhance ethanol yields from paddy straw. Methods included alkali, sonication, and alkali-assisted sonication treatments to modify substrate composition, followed by enzymatic hydrolysis using cellulase, xylanase, and mannanase. Results revealed that alkali-assisted sonication yielded the highest reducing sugar concentrations (30 ± 0.8 mg/mL) and ethanol productivity (0.41 g/L/h), with a saccharification percentage of 89 % and ethanol yield of 0.58 g/L. In contrast, xylanase exhibited a saccharification percentage of 83 % with an ethanol productivity of 0.28 g/L/h, while cellulase achieved 85 % saccharification and 0.35 g/L/h ethanol productivity. Mannanase showed the lowest performance with 79 % saccharification and 0.21 g/L/h ethanol productivity. A synergistic enzyme cocktail maximized substrate breakdown and sugar release. This research underscores the critical role of pretreatment and enzyme selection in advancing bioethanol production, offering a sustainable pathway to valorize agricultural waste into clean energy.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"10 ","pages":"Article 100239"},"PeriodicalIF":0.0,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642770","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}
引用次数: 0
Electrochemical abatement of diclofenac with various electrode systems for water treatment applications 不同电极系统对双氯芬酸水处理应用的电化学去除
Sustainable Chemistry for the Environment Pub Date : 2025-03-07 DOI: 10.1016/j.scenv.2025.100237
Atla Shashi Bairagi
{"title":"Electrochemical abatement of diclofenac with various electrode systems for water treatment applications","authors":"Atla Shashi Bairagi","doi":"10.1016/j.scenv.2025.100237","DOIUrl":"10.1016/j.scenv.2025.100237","url":null,"abstract":"<div><div>Treating pharmaceutical wastewater is one of the biggest challenges of the present century and is widely detected in surface and groundwater. The release and accumulation of biologically active Diclofenac (DCF) pharmaceutical waste into natural water bodies and groundwater harms aquatic and human life. It is often detected in aquatic environments due to the high consumption of DCF worldwide. Conventional technologies with different physical and biological treatment methods are inefficient in their effective removal and leave traces of DCF untreated. Anodic oxidation is a promising technology for the degradation of an organic pollutant. An electrochemical method of generating radicals is cost-effective and environmentally cleaner and achieves complete mineralization/scission of the DCF to CO<sub>2</sub>, water, and inorganic ions. Oxidative reactive species such as hydroxyl radical, hydrogen peroxide, ozone, hypochlorous acid, and other inorganic radicals are generated in situ subjected to the type of water matrices present. The concurrent generation of different reactive species and their simultaneous presence (radicals and other active components) brings the complete degradation of DCF. The electrodes and electrolytic systems present the crucial parameters in generating highly reactive intermediates at the electrode surface. An inexpensive electrode material that meets the requirement of high electroactivity and is chemically stable under reactions is necessary for the successful large-scale implementation of DCF wastewater treatment. Different electrodes such as boron-doped diamond, carbon-based, and metal oxides and their efficiency in the electro-mineralization process of DCF are discussed. The DCF oxidation mechanism via C-N scission, decarboxylation, and hydroxylation process is illustrated comprehensively with different chemical structure formations.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"10 ","pages":"Article 100237"},"PeriodicalIF":0.0,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628099","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}
引用次数: 0
Influence of chemical concentrations on the physicochemical, structural, functional and color characteristics of chitin isolated from Arabian red shrimp (Aristeus alcocki) 化学浓度对阿拉伯红虾甲壳素理化、结构、功能和颜色特性的影响
Sustainable Chemistry for the Environment Pub Date : 2025-03-07 DOI: 10.1016/j.scenv.2025.100233
M.K. Rasweefali , A. Nayana , M.K. Raseel Rahman , H. Habeebrehman , S. Sabu
{"title":"Influence of chemical concentrations on the physicochemical, structural, functional and color characteristics of chitin isolated from Arabian red shrimp (Aristeus alcocki)","authors":"M.K. Rasweefali ,&nbsp;A. Nayana ,&nbsp;M.K. Raseel Rahman ,&nbsp;H. Habeebrehman ,&nbsp;S. Sabu","doi":"10.1016/j.scenv.2025.100233","DOIUrl":"10.1016/j.scenv.2025.100233","url":null,"abstract":"<div><div>This study examines the physicochemical, functional and structural characteristics of α-chitin extracted from the exoskeleton of Arabian red shrimp using varying concentrations of HCl and NaOH. By employing HCl and NaOH at concentrations of 0.6, 1.0 and 1.4 M, this study systematically evaluates the degree of acetylation (DA), molecular weight (Mw), whiteness, purity, crystallinity, and other key parameters of the isolated chitin samples in comparison to commercial chitin (CCN). Results indicate a varied range of N-acetyl group content (77.34 ± 1.13 % to 96.56 ± 1.18 %) and crystallinity values (36.40–44.20 %) across different acid and alkali concentration combinations. This study highlights the effectiveness of deproteinization and demineralization processes in most cases, as confirmed by EDS microanalysis, which demonstrated the complete removal of minerals. Morphological analysis using FE-SEM revealed a smooth, porous and microfibrillar structure in the isolated chitin samples. The study emphasizes the significant influence of the extraction process on chitin properties, with lower concentrations of HCl and NaOH yielding higher CrI and DA. Furthermore, increased concentrations of HCl and NaOH were associated with decreased Mw and increased fat-binding capacity (FBC) and water-binding capacity (WBC) of the isolated chitin samples. This study enhances understanding of how species-specific traits and processing conditions influence chitin characteristics, enabling researchers to predict and select crustacean species for chitin isolation based on desired functional properties.</div></div>","PeriodicalId":101196,"journal":{"name":"Sustainable Chemistry for the Environment","volume":"10 ","pages":"Article 100233"},"PeriodicalIF":0.0,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143619445","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}
引用次数: 0
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