发布求助
文献互助 智能选刊 最新文献

International Journal of Carbohydrate Chemistry最新文献

筛选
英文 中文
One Step Photopolymerization of N, N-Methylene Diacrylamide and Photocuring of Carboxymethyl Starch-Silver Nanoparticles onto Cotton Fabrics for Durable Antibacterial Finishing N, N-亚甲基二丙烯酰胺的一步光聚合及羧甲基淀粉-纳米银在棉织物上的光固化
International Journal of Carbohydrate Chemistry Pub Date : 2014-07-17 DOI: 10.1155/2014/380296
M. El-sheikh, H. Ibrahim
{"title":"One Step Photopolymerization of N, N-Methylene Diacrylamide and Photocuring of Carboxymethyl Starch-Silver Nanoparticles onto Cotton Fabrics for Durable Antibacterial Finishing","authors":"M. El-sheikh, H. Ibrahim","doi":"10.1155/2014/380296","DOIUrl":"https://doi.org/10.1155/2014/380296","url":null,"abstract":"The PI/UV system ((4-trimethyl ammonium methyl) benzophenone chloride/UV) was used to synthesize carboxymethyl starch- (CMS-) stabilized silver nanoparticles (AgNPs). AgNPs so prepared had round shape morphology with size of 1–7 nm. The prepared AgNPs were utilized to impart antibacterial finishing for cotton fabrics. The PI/UV system was further utilized to fix AgNPs onto cotton fabrics by photocrosslinking of AgNPs-CMS composite onto cotton fabrics to impart durable antibacterial properties. Effect of irradiation time and incorporating N, N-methylene diacrylamide (MDA) in different concentrations on antibacterial performance before and after repeated washing cycles was studied. S. aureus and E. coli were used to evaluate the antibacterial performance of finished fabrics. The antibacterial performance was directly proportional to the irradiation time and concentration of MDA but inversely proportional to the number of washing cycles. The inhibition zone of S. aureus and E. coli is the same although they are different in the cell wall structure and mode of action due to the nanosize structure formed.","PeriodicalId":13788,"journal":{"name":"International Journal of Carbohydrate Chemistry","volume":"1 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2014-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88223130","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: 5
New View to Obtain Dryer Food Foams with Different Polysaccharides and Soy Protein by High Ultrasound 高超声法制备含不同多糖和大豆蛋白的干燥食品泡沫的新观点
International Journal of Carbohydrate Chemistry Pub Date : 2014-03-26 DOI: 10.1155/2014/259356
Karina D. Martínez, C. Sánchez
{"title":"New View to Obtain Dryer Food Foams with Different Polysaccharides and Soy Protein by High Ultrasound","authors":"Karina D. Martínez, C. Sánchez","doi":"10.1155/2014/259356","DOIUrl":"https://doi.org/10.1155/2014/259356","url":null,"abstract":"The objective of this work was to determine the effects of high intensity ultrasound application on the foaming properties of soy protein-polysaccharides mixed solutions. To this end, foaming parameters during foam formation were analyzed. The samples were sonicated for 20 min using ultrasonic processor Vibra Cell Sonics, and model VCX 750 at a frequency of 20 kHz and an amplitude of 20%. The foams were produced by a Foamscan instrument. The evolution of the bubble size change in the foam was also determined by a second CCD camera. For all foamed systems, at two pHs 3 and 7, Foam expansion and Relative Foam Conductivity showed a great increase after ultrasonic treatment. Other parameters studied did not show difference. On the other hand, Final Time of Foaming and the Total Gas Volume incorporation for foams formation were correlated with the Relative Foam Conductivity decrease and the Foam Expansion increase when HIUS were applied in every system. Comparative bubble size and shape during the foam formation according to the treatments and pH used confirmed the parameters results.","PeriodicalId":13788,"journal":{"name":"International Journal of Carbohydrate Chemistry","volume":"55 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2014-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89484480","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: 4
Role of Polysaccharides in Complex Mixtures with Soy Protein Hydrolysate on Foaming Properties Studied by Response Surface Methodology 用响应面法研究了大豆水解蛋白复合混合物中多糖对泡沫性能的影响
International Journal of Carbohydrate Chemistry Pub Date : 2014-02-04 DOI: 10.1155/2014/474720
Karina D. Martínez, A. Pilosof
{"title":"Role of Polysaccharides in Complex Mixtures with Soy Protein Hydrolysate on Foaming Properties Studied by Response Surface Methodology","authors":"Karina D. Martínez, A. Pilosof","doi":"10.1155/2014/474720","DOIUrl":"https://doi.org/10.1155/2014/474720","url":null,"abstract":"The complex mixture studied, a hydrolyzed soy protein (HSP), κ-carrageenan (κC), and an hydroxypropyl methylcellulose (HPMC), could be used as a foaming agent under refrigeration or heating conditions because of the presence of one polysaccharide (HPMC) that gels on heating and another (κC) that gels on cooling. The objective of this work was to study the role of these polysaccharides on foaming properties by whipping methods at heating conditions. For this purpose, response surface methodology was used to optimize the mixed product in foamed food systems. The obtained results showed that the combination of E4M, κC, and HSP is an adequate strategy to generate good foam capacity and stability at heating conditions. The huge stability increase of foams at heating conditions was ascribed to combined effect of polysaccharides: gelling property of E4M and the viscozieng character imparted by κC to continuous phase of foaming.","PeriodicalId":13788,"journal":{"name":"International Journal of Carbohydrate Chemistry","volume":"97 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2014-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75854072","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: 1
A Green Approach to Synthesize Silver Nanoparticles in Starch-co-Poly(acrylamide) Hydrogels by Tridax procumbens Leaf Extract and Their Antibacterial Activity 原豆叶提取物在淀粉-聚丙烯酰胺水凝胶中合成纳米银的绿色途径及其抗菌活性
International Journal of Carbohydrate Chemistry Pub Date : 2013-12-24 DOI: 10.1155/2013/539636
S. Shaik, Madhusudana Rao Kummara, Sudhakar Poluru, Chandrababu Allu, J. M. Gooty, Chowdoji Rao Kashayi, M. Subha
{"title":"A Green Approach to Synthesize Silver Nanoparticles in Starch-co-Poly(acrylamide) Hydrogels by Tridax procumbens Leaf Extract and Their Antibacterial Activity","authors":"S. Shaik, Madhusudana Rao Kummara, Sudhakar Poluru, Chandrababu Allu, J. M. Gooty, Chowdoji Rao Kashayi, M. Subha","doi":"10.1155/2013/539636","DOIUrl":"https://doi.org/10.1155/2013/539636","url":null,"abstract":"A series of starch-co-poly(acrylamide) (starch-co-PAAm) hydrogels were synthesized by employing free radical redox polymerization. A novel green approach, Tridax procumbens (TD) leaf extract, was used for reduction of silver ions (Ag","PeriodicalId":13788,"journal":{"name":"International Journal of Carbohydrate Chemistry","volume":"53 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2013-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82103351","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: 19
Synthesis and Antimicrobial Activity of Carbohydrate Based Schiff Bases: Importance of Sugar Moiety 碳水化合物基席夫碱的合成及其抗菌活性:糖段的重要性
International Journal of Carbohydrate Chemistry Pub Date : 2013-12-12 DOI: 10.1155/2013/320892
Helmóz R. Appelt, J. S. Oliveira, R. Santos, O. Rodrigues, M. Z. Santos, E. Heck, L. C. Rosa
{"title":"Synthesis and Antimicrobial Activity of Carbohydrate Based Schiff Bases: Importance of Sugar Moiety","authors":"Helmóz R. Appelt, J. S. Oliveira, R. Santos, O. Rodrigues, M. Z. Santos, E. Heck, L. C. Rosa","doi":"10.1155/2013/320892","DOIUrl":"https://doi.org/10.1155/2013/320892","url":null,"abstract":"A series of D-glucosamine derivatives were synthesized (2–4) and evaluated for their antimicrobial activity. Some of the compounds investigated have shown significant antimicrobial activity against Gram-positive and Gram-negative bacterial strains as well as a few fungal strains. The results suggest that the presence of sugar moiety is necessary to biological activity.","PeriodicalId":13788,"journal":{"name":"International Journal of Carbohydrate Chemistry","volume":"2 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2013-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73537723","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: 17
Combination of Natural and Thermosensitive Polymers in Flocculation of Fine Silica Dispersions 天然高分子与热敏性高分子在二氧化硅微分散絮凝中的结合
International Journal of Carbohydrate Chemistry Pub Date : 2013-11-11 DOI: 10.1155/2013/242684
Á. Licea-Claveríe, S. Schwarz, Christine Steinbach, Sandra Montserrat Ponce-Vargas, S. Genest
{"title":"Combination of Natural and Thermosensitive Polymers in Flocculation of Fine Silica Dispersions","authors":"Á. Licea-Claveríe, S. Schwarz, Christine Steinbach, Sandra Montserrat Ponce-Vargas, S. Genest","doi":"10.1155/2013/242684","DOIUrl":"https://doi.org/10.1155/2013/242684","url":null,"abstract":"A novel strategy for faster and better flocculation in solid-liquid separation processes is reported: the use of the natural polyelectrolyte chitosan (CH2500) in combination with the biocompatible thermosensitive polymer poly(N-vinylcaprolactam) (PNVCL). Silica dispersions (Aerosil OX50) were used as model and evaluated by means of analytical centrifuge, laser diffraction, and turbidimetry studies. Results show that the sedimentation velocity is doubled by addition of PNVCL and that at 45°C the density of the sediment is 33% higher, as compared to the use of CH2500 only. This results from the temperature sensitive behavior of PNVCL that phase-separate expelling water at temperatures higher than its LCST (32–34°C) leading to compaction of the flocs. By using this strategy the sediment is more compact, contains less water, and contains a very small amount of biodegradable CH2500 and biocompatible PNVCL.","PeriodicalId":13788,"journal":{"name":"International Journal of Carbohydrate Chemistry","volume":"18 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2013-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79303165","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: 13
Efficient Synthesis of Dispiropyrrolidines Linked to Sugars 与糖相连的二吡咯烷的高效合成
International Journal of Carbohydrate Chemistry Pub Date : 2013-11-10 DOI: 10.1155/2013/340546
Sirisha Nallamala, R. Raghunathan
{"title":"Efficient Synthesis of Dispiropyrrolidines Linked to Sugars","authors":"Sirisha Nallamala, R. Raghunathan","doi":"10.1155/2013/340546","DOIUrl":"https://doi.org/10.1155/2013/340546","url":null,"abstract":"An expedient method for the synthesis of glyco-dispiropyrrolidines is reported through 1,3-dipolar cycloaddition reaction (1,3 DC reaction). The novel glycosyl dipolarophiles derived from D-glucose underwent neat [3","PeriodicalId":13788,"journal":{"name":"International Journal of Carbohydrate Chemistry","volume":"28 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2013-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74231464","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: 4
Synthesis and Application of Nanocrystalline-Cellulose-Supported Acid Ionic Liquid Catalyst in Pechmann Reaction 纳米晶纤维素负载酸性离子液体催化剂的合成及其在Pechmann反应中的应用
International Journal of Carbohydrate Chemistry Pub Date : 2013-10-29 DOI: 10.1155/2013/452580
M. Lakouraj, N. Bagheri, Vahid Hasantabar
{"title":"Synthesis and Application of Nanocrystalline-Cellulose-Supported Acid Ionic Liquid Catalyst in Pechmann Reaction","authors":"M. Lakouraj, N. Bagheri, Vahid Hasantabar","doi":"10.1155/2013/452580","DOIUrl":"https://doi.org/10.1155/2013/452580","url":null,"abstract":"Nanocrystalline-cellulose-supported acidic ionic liquid carrying SO3H functional group was prepared using nanocrystalline cellulose, imidazole and 1,4-butane sultone as the source chemicals. The prepared nanocrystalline-cellulose-supported ionic liquid catalyst was characterized by AFM and SEM and its catalytic activity in the reaction of resorcinol with ethyl acetoacetate was tested in a solvent-free condition. The effects of reaction time, reaction temperature, and the ratio of catalyst on the conversion of resorcinol were investigated. A variety of coumarin derivatives were obtained in good yield in the absence of solvent.","PeriodicalId":13788,"journal":{"name":"International Journal of Carbohydrate Chemistry","volume":"57 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2013-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85617738","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: 4
Analgesic Activity of a Glucan Polysaccharide Isolated from Agaricus blazei Murill 姬松茸葡聚糖多糖的镇痛活性研究
International Journal of Carbohydrate Chemistry Pub Date : 2013-09-19 DOI: 10.1155/2013/846565
M. L. C. Gonzaga, Thiago M.F. Menezes, J. R. Souza, N. Ricardo, A. Freitas, S. Soares
{"title":"Analgesic Activity of a Glucan Polysaccharide Isolated from Agaricus blazei Murill","authors":"M. L. C. Gonzaga, Thiago M.F. Menezes, J. R. Souza, N. Ricardo, A. Freitas, S. Soares","doi":"10.1155/2013/846565","DOIUrl":"https://doi.org/10.1155/2013/846565","url":null,"abstract":"A water soluble polysaccharide and its selective precipitated fractions (F1, F2, and F3) were isolated from hot water extract of fruiting bodies of Agaricus blazei Murril known as Agaricus brasiliensis to evaluate the analgesic activity of the materials in Swiss mice. The isolated material and its fractions were characterized by two-dimensional COSY and HMQC spectra as β-(1→6)-α-(1→4)-glucan-bound-protein polysaccharide constituted mainly by β-(1→6) glucan. The glucan-protein polysaccharide and its fractions were analyzed in relation to the protein, carbohydrate, and mineral elements contents. The analysis of the glucan-protein complex revealed a total carbohydrate content of 36.95% and protein conjugated content of 17.24%. The mineral elements found in larger proportion were K, Na, Ca, P, and Zn. The analgesic activity bioassay of the β-(1→6)-α-(1→4)-glucan bound-protein polysaccharide and its fractions in Swiss mice indicated a significant effect.","PeriodicalId":13788,"journal":{"name":"International Journal of Carbohydrate Chemistry","volume":"45 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2013-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87534447","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: 3
Synthesis and Characterization of Acrylic Acid-g-(-Carrageenan) Copolymer and Study of Its Application 丙烯酸-g-(-卡拉胶)共聚物的合成、表征及应用研究
International Journal of Carbohydrate Chemistry Pub Date : 2013-06-11 DOI: 10.1155/2013/892615
A. Srivastava, R. Kumar
{"title":"Synthesis and Characterization of Acrylic Acid-g-(-Carrageenan) Copolymer and Study of Its Application","authors":"A. Srivastava, R. Kumar","doi":"10.1155/2013/892615","DOIUrl":"https://doi.org/10.1155/2013/892615","url":null,"abstract":"The effects of concentrations of peroxymonosulphate, mercaptosuccinic acid, hydrogen ion, acrylic acid, and carrageenan on grafting parameters were studied to find out the maximum grafting ratio. The corresponding values were found to be , , ,  mol dm−3, and  g dm−3, respectively. The optimal reaction time duration and reaction temperature were found to be 120 min and 40°C, respectively. The effect of hydrogen ion variation from 5.0 up to  mol dm−3 shows prompt changes on grafting parameter. The grafted copolymer was found more thermally stable than the ungrafted substrate. Also the grafted copolymer absorbed more water, namely hazardous metal cations. Hg2","PeriodicalId":13788,"journal":{"name":"International Journal of Carbohydrate Chemistry","volume":"36 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2013-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73440457","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: 17
首页 上一页 下一页 尾页
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
现在去查看 取消
×
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