Chitin-Chitosan - Myriad Functionalities in Science and Technology最新文献

Overview of Electrospinned Chitosan Nanofiber Composites for Wound Dressings 电纺丝壳聚糖纳米纤维复合材料的研究进展

Chitin-Chitosan - Myriad Functionalities in Science and Technology Pub Date : 2018-07-18 DOI: 10.5772/INTECHOPEN.76037

Claudia A. Vega-Cázarez, D. Sánchez‐Machado, J. López‐Cervantes

引用次数: 11

Chitosan: A Good Candidate for Sustained Release Ocular Drug Delivery Systems 壳聚糖:一种良好的眼部缓释药物递送系统

Chitin-Chitosan - Myriad Functionalities in Science and Technology Pub Date : 2018-07-18 DOI: 10.5772/INTECHOPEN.76039

L. Popa, M. Ghica, C. Dinu-Pîrvu, Teodora Irimia

引用次数: 13

Chitosan-Based Green and Sustainable Corrosion Inhibitors for Carbon Steel 基于壳聚糖的碳钢绿色可持续缓蚀剂

Chitin-Chitosan - Myriad Functionalities in Science and Technology Pub Date : 2018-07-18 DOI: 10.5772/INTECHOPEN.74989

C. Verma, Arumugam Madhan Kumar, M. Mazumder, M. Quraishi

{"title":"Chitosan-Based Green and Sustainable Corrosion Inhibitors for Carbon Steel","authors":"C. Verma, Arumugam Madhan Kumar, M. Mazumder, M. Quraishi","doi":"10.5772/INTECHOPEN.74989","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.74989","url":null,"abstract":"Development of non-toxic and environmental friendly corrosion inhibitors is highly desirable owing to the increasing demands of “green chemistry” throughout the world. In view of these several forms of green corrosion inhibitors such as drugs or medicines, plant extracts, ionic liquids and synthetic inhibitors derived from multicomponent reactions (MCRs) and mechanochemical mixing are being employed. Nowadays, MCRs in association with microwave and ultrasound irradiations represent one of the best green strategies. Natural polysaccharides particularly chitosan derivatives gained substantial advancement. Chitosan and its several derivatives have been employed effective as corrosion inhibitors for metals and alloys in various aggressive media. The present chapter features the collection of major works that have been published on the inhibition effect of chitosan and its derivatives. The utilization of the chitosan and its derivatives as effective corrosion inhibitors is based on the fact that they contain several polar functional groups such as amino (-NH2), hydroxyl (-OH) and acetyl (-COCH3) groups that effectively bind with metallic surface and behave as adsorption centers.","PeriodicalId":170888,"journal":{"name":"Chitin-Chitosan - Myriad Functionalities in Science and Technology","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132774297","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: 6

Antifungal Activity of Chitosan against Postharvest Fungi of Tropical and Subtropical Fruits 壳聚糖对热带、亚热带水果采后真菌的抑菌活性研究

Chitin-Chitosan - Myriad Functionalities in Science and Technology Pub Date : 2018-07-18 DOI: 10.5772/INTECHOPEN.76095

P. Gutiérrez-Martínez, Aide Ledezma-Morales, Luz del Carmen Romero-Islas, A. Ramos-Guerrero, J. Romero-Islas, C. Rodríguez-Pereida, P. Casas-Junco, L. Coronado-Partida, R. González-Estrada

{"title":"Antifungal Activity of Chitosan against Postharvest Fungi of Tropical and Subtropical Fruits","authors":"P. Gutiérrez-Martínez, Aide Ledezma-Morales, Luz del Carmen Romero-Islas, A. Ramos-Guerrero, J. Romero-Islas, C. Rodríguez-Pereida, P. Casas-Junco, L. Coronado-Partida, R. González-Estrada","doi":"10.5772/INTECHOPEN.76095","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.76095","url":null,"abstract":"In the present chapter, results about the efficacy of chitosan (Chi) on sporulation, myce - lial growth, germination, as well as quality parameters on fruits are shown. The results demonstrate that chitosan can control various phytopathogen isolates from diverse fruits. The pathogens in the genera Colletotrichum , Fusarium , and Rhizopus are involved in important postharvest disease losses throughout the world. In Nayarit, producers had reported high postharvest losses not only at field but also during the commercial chain with their products, besides the resistance of several pathogens to fungicides, which traditionally are applied for controlling diseases. In this sense, the aim of this research group is focused on the research of alternative and effective methods for controlling post - harvest diseases. In vivo results are promising due to a good control in important tropical fruits like banana, avocado, mango, and jackfruit. An enhancement in the chitosan anti - microbial activity is reported with the combination with GRAS substances, as well as the use of nanotechnology. Chitosan can be an environment-friendly alternative to the use of chemical fungicides for controlling postharvest diseases in fruits.","PeriodicalId":170888,"journal":{"name":"Chitin-Chitosan - Myriad Functionalities in Science and Technology","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134433042","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: 14

Chitosan’s Wide Profile from Fibre to Fabrics: An Overview 壳聚糖从纤维到织物的广泛应用综述

Chitin-Chitosan - Myriad Functionalities in Science and Technology Pub Date : 2018-07-18 DOI: 10.5772/INTECHOPEN.76196

Xue Luo, Li Li

引用次数: 1

Introductory Chapter: Multitask Portfolio of Chitin/Chitosan: Biomatrix to Quantum Dot 导论章:甲壳素/壳聚糖的多任务组合:生物基质到量子点

Chitin-Chitosan - Myriad Functionalities in Science and Technology Pub Date : 2018-07-18 DOI: 10.5772/INTECHOPEN.77218

R. Dongre

引用次数: 9

Ampicillin-Loaded Chitosan Nanoparticles for In Vitro Antimicrobial Screening on Escherichia coli 负载氨苄西林壳聚糖纳米颗粒对大肠杆菌的体外抗菌筛选

Chitin-Chitosan - Myriad Functionalities in Science and Technology Pub Date : 2018-07-18 DOI: 10.5772/INTECHOPEN.76034

Marilyn Porras-Gómez, J. Vega-baudrit, S. Núñez-Corrales

{"title":"Ampicillin-Loaded Chitosan Nanoparticles for In Vitro Antimicrobial Screening on Escherichia coli","authors":"Marilyn Porras-Gómez, J. Vega-baudrit, S. Núñez-Corrales","doi":"10.5772/INTECHOPEN.76034","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.76034","url":null,"abstract":"Purpose: To develop ampicillin-loaded chitosan nanoparticles by modiﬁed ionic gelation method for evaluating their antimicrobial activity onto Escherichia coli . Methods: Ampicillin-loaded chitosan nanoparticles (CHT-NPs) prepared by ionic gela - tion method with sodium tripolyphosphate as cross-linking agent. Drug release param eters (zeta potential, particle size, entrapment eﬃciency, and in vitro drug release) were assessed in relation to CHT-NP antimicrobial proﬁle on E. coli . Antibacterial properties of CHT-NP formulation with ampicillin were found better than mere ampicillin without CHT-NPs. Results: SEM, AFM images revealed dimensions of CHT-NPs with irregularity in shape/ size. Optimized concentrations of chitosan 0.5% w/v with three diﬀerent ratios (0.05% to 0.3% w/v) of TPP proved optimal for the evaluation of antibacterial proﬁle of CHT-NPs. In vitro ampicillin-loaded CHT-NP delivery studies revealed an initial burst followed by slow sustained drug release, demonstrating superior antimicrobial activity than plain ampicillin, due to the synergistic eﬀect of chitosan and ampicillin . Conclusion: Chitosan content and cross-linking agent concentrations are control factors in synthesis of the optimized CHT-NP formulation. CHT-NPs with ampicillin cargo capa bly sustained ampicillin delivery due to NP size and increased surface charge, resulting in eﬃcient growth inhibition in assays with E. coli .","PeriodicalId":170888,"journal":{"name":"Chitin-Chitosan - Myriad Functionalities in Science and Technology","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133825893","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: 9

Chitoneous Materials for Control of Foodborne Pathogens and Mycotoxins in Poultry 《家禽食源性致病菌和真菌毒素防治材料

Chitin-Chitosan - Myriad Functionalities in Science and Technology Pub Date : 2018-07-18 DOI: 10.5772/INTECHOPEN.76041

D. Hernández-Patlán, B. Solís-Cruz, B. Hargis, G. Téllez

引用次数: 5

Carboxymethyl-Chitosan Cross-Linked 3- Aminopropyltriethoxysilane Membrane for Speciation of Toxic Chromium from Water 羧基甲基-壳聚糖交联3-氨基丙基三乙氧基硅烷膜对水中有毒铬的吸附

Chitin-Chitosan - Myriad Functionalities in Science and Technology Pub Date : 2018-07-18 DOI: 10.5772/INTECHOPEN.76035

N. Kano

{"title":"Carboxymethyl-Chitosan Cross-Linked 3- Aminopropyltriethoxysilane Membrane for Speciation of Toxic Chromium from Water","authors":"N. Kano","doi":"10.5772/INTECHOPEN.76035","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.76035","url":null,"abstract":"Adsorption of Cr(VI) from aqueous solution onto the nanomaterials prepared by modified chitosan was investigated in a batch system to evaluate the efficiency of biomass as an adsorbent. The crosslinking materials of chitosan & silicon dioxide and carboxymethyl chitosan & silicon dioxide were synthesized, respectively, as new adsorbent materials for the removal of Cr(VI) from aqueous solutions. The adsorption potential of Cr(VI) by the nanomaterials for desalination was investigated by varying experimental conditions such as pH, contact time and the dosage of the nanomaterials. Adsorption isotherms of Cr(VI) onto the membrane were studied with varying initial concentrations under optimum experiment conditions. The surface property of the membrane was characterized by SEM (scanning electron microscope) and Fourier transform infrared spectrometer (FT-IR). The concentrations of Cr(VI) in solution are determined by ICP-AES (inductively coupled plasma atomic emission spectrometry). The membrane of carboxymethyl chitosan & silicon dioxide exhibited higher adsorption capacity than the membrane of chitosan & silicon dioxide for Cr(VI). The adsorption sites and specific surface area may be increased by changing from chitosan to carboxymethyl chitosan. The maximum adsorption capacity was estimated as 80.7 mg (cid:1) g (cid:3) 1 for Cr(VI) under the optimum conditions.","PeriodicalId":170888,"journal":{"name":"Chitin-Chitosan - Myriad Functionalities in Science and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122031459","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: 2

Chitin/Chitosan’s Bio-Fertilizer: Usage in Vegetative Growth of Wheat and Potato Crops 几丁质/壳聚糖生物肥料在小麦和马铃薯营养生长中的应用

Chitin-Chitosan - Myriad Functionalities in Science and Technology Pub Date : 2018-07-18 DOI: 10.5772/INTECHOPEN.75208

Boukhlifi Fatima, M. Zahrae, R. Razouk

{"title":"Chitin/Chitosan’s Bio-Fertilizer: Usage in Vegetative Growth of Wheat and Potato Crops","authors":"Boukhlifi Fatima, M. Zahrae, R. Razouk","doi":"10.5772/INTECHOPEN.75208","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.75208","url":null,"abstract":"This chapter consists of valuing the chitosan to create bio-fertilizers as fertilizers without going through the composting process because of their richness in the nutrient base elements of plants: nitrogen and phosphorus. Physicochemical analyses of the chitosan focused on pH, dry matter, organic matter, nitrogen, phosphorus and potassium as well as IR and XRD. The samples thus prepared were monitored for 15 days. PH, temperature and conductivity were monitored daily. According to the physicochemical analyses of waste (nitrogen, phosphorus and potassium) and the nutritional needs of our selected crop (soft wheat, Arrehane variety which are 90-90-50 U/ha), several doses are then determined for the purpose of the optimal formula after their application on the crop. An application of bio-fertilizer on the potato was also undertaken. Follow-ups were carried out during this study, such as the monitoring of the vegetative growth of wheat and the mineralization of the soil via its physicochemical analyses. The results show that our bio-fertilizer is rich in nitrogen with 4.98% and phosphorus with 1.42% and mineralizes quickly on the ground while leaving the soft wheat to absorb its nutrients effectively and improving its growth properties, then giving good yields.","PeriodicalId":170888,"journal":{"name":"Chitin-Chitosan - Myriad Functionalities in Science and Technology","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130811560","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: 14