Progress on Chemistry and Application of Chitin and its Derivatives最新文献_第3页

EFFECT OF IONIC AND COVALENT CROSSLINKING OF HYDROGEL CHITOSAN BEADS ON THE ADSORPTION EFFICIENCY OF BASIC VIOLET 10 AND BASIC GREEN 4 DYES FROM AQUEOUS SOLUTIONS 水凝胶壳聚糖珠离子和共价交联对碱性紫10和碱性绿4染料吸附效率的影响

IF 0.6

Progress on Chemistry and Application of Chitin and its Derivatives Pub Date : 2022-09-30 DOI: 10.15259/pcacd.27.009

T. Jóźwiak, U. Filipkowska, Magdalena Filipkowska

{"title":"EFFECT OF IONIC AND COVALENT CROSSLINKING OF HYDROGEL CHITOSAN BEADS ON THE ADSORPTION EFFICIENCY OF BASIC VIOLET 10 AND BASIC GREEN 4 DYES FROM AQUEOUS SOLUTIONS","authors":"T. Jóźwiak, U. Filipkowska, Magdalena Filipkowska","doi":"10.15259/pcacd.27.009","DOIUrl":"https://doi.org/10.15259/pcacd.27.009","url":null,"abstract":"This work investigated the adsorption efficiency of Basic Violet 10 (BV10)and Basic Green 4 (BG4) dyes on ionically and covalently crosslinked chitosan hydrogel beads. The tested ionic crosslinkers were sodium citrate, sodium tripolyphosphate, and sulphosuccinic acid, while the covalent crosslinkers were glutaraldehyde, epichlorohydrin, and trimethylolpropane triglycidyl ether. The scope of the work included investigation of the effect of pH on the adsorption efficiency of dyes and the maximum adsorption capacity of crosslinked chitosan adsorbents. The maximum adsorption capacity of the non-crosslinked chitosan adsorbent was 2.94 mg/g and 44.32 mg/g for BV10 and BG4, respectively. Ionic crosslinking, regardless of the type of crosslinking agent, reduced the adsorption ability of hydrogel chitosan adsorbents in relation to cationic dyes (Qmax = 1.84-2.49 mg/g for BV10; 37.21-38.90 mg/g for BG4). Covalent crosslinking of chitosan slightly increased its adsorption capacity only for BV10 (Qmax = 3.59-3.81 mg/g for BV10; 39.15-40.62 mg/g for BG4).","PeriodicalId":44461,"journal":{"name":"Progress on Chemistry and Application of Chitin and its Derivatives","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46919189","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

INFLUENCE OF SELECTED POLYMERS ON PHARMACEUTICAL: PROPERTIES OF MUCOSAL SYSTEMS CONTAINING ACYCLOVIR 所选聚合物对含阿昔洛韦的粘膜系统性质的影响

IF 0.6

Progress on Chemistry and Application of Chitin and its Derivatives Pub Date : 2022-09-30 DOI: 10.15259/pcacd.27.008

B. Grimling

{"title":"INFLUENCE OF SELECTED POLYMERS ON PHARMACEUTICAL: PROPERTIES OF MUCOSAL SYSTEMS CONTAINING ACYCLOVIR","authors":"B. Grimling","doi":"10.15259/pcacd.27.008","DOIUrl":"https://doi.org/10.15259/pcacd.27.008","url":null,"abstract":"The aim of this paper was to formulate the composition of a bioadhesive film obtained based on acyclovir incorporated into natural bioadhesive polymers (chitosan and guar gum) in different quantitative ratios. To this end, the author developed a technology for preparing films containing various quantitative ratios of chitosan to guar gum: 1:0.25; 1:0.50; 1:0.75; 1:1; and 1.2:0.50. The formulations were used to prepare mucoadhesive films containing 2% acyclovir. The dressings were tested with respect to their physicochemical properties and subjected to dissolution testing. A comparative analysis of Fourier-transform infrared (FT-IR) spectra of pure polymers, acyclovir, and films containing polymers in different quantitative ratios was conducted. The quantitative ratio of chitosan to guar gum significantly impacted the mechanical properties of films: texture, elasticity, tensile strength, swelling, and blur time of the testes carriers. The 1:1 formulation showed the highest mechanical strength and flexibility. The dressing containing 1.2% chitosan and 0.5% guar gum had the longest blur time. An increase in the chitosan content in the formulation significantly affected the drug dissolution parameters, which makes it possible to achieve the desired effect of extended-release time. The FT-IR spectra excluded the formation of drug-polymer interactions. Changes in the quantitative ratios of chitosan and guar game in the carrier’s composition may impact the mechanical properties of the drug formulation and changes in the parameters of active substance release.","PeriodicalId":44461,"journal":{"name":"Progress on Chemistry and Application of Chitin and its Derivatives","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44011714","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

THE EFFECT OF DIFFERENT MOLECULAR WEIGHTS OF CHITOSAN ON THE YIELD, QUALITY, AND HEALTH-PROMOTING PROPERTIES OF STRAWBERRIES 壳聚糖不同分子量对草莓产量、品质及保健性能的影响

IF 0.6

Progress on Chemistry and Application of Chitin and its Derivatives Pub Date : 2022-09-30 DOI: 10.15259/pcacd.27.015

I. Ochmian, S. Lachowicz, M. Krupa-Małkiewicz

引用次数: 1

COMBINED MICROWAVE-ASSISTED SUBCRITICAL LIQUID EXTRACTION OF CHITOSAN FROM CRAB SHELL WASTE 微波辅助亚临界液联合萃取蟹壳废弃物中壳聚糖的研究

IF 0.6

Progress on Chemistry and Application of Chitin and its Derivatives Pub Date : 2022-09-30 DOI: 10.15259/pcacd.27.016

Ramyah Segaran, R. Omar, Y. Kusumastuti, R. Harun, S. Kamal

{"title":"COMBINED MICROWAVE-ASSISTED SUBCRITICAL LIQUID EXTRACTION OF CHITOSAN FROM CRAB SHELL WASTE","authors":"Ramyah Segaran, R. Omar, Y. Kusumastuti, R. Harun, S. Kamal","doi":"10.15259/pcacd.27.016","DOIUrl":"https://doi.org/10.15259/pcacd.27.016","url":null,"abstract":"Current chitosan extraction methods require a highly concentrated alkaline solvent that is costly and environmentally unfriendly. This study aimed to assess the potential of using subcritical liquid deproteination to produce amorphous chitin to reduce the alkaline concentration during the deacetylation step to obtain high-quality chitosan. A combination of microwave-assisted demineralisation, subcritical liquid (SL) deproteination, and conventional deacetylation was employed for chitosan production. Distilled water and 2% and 4% sodium hydroxide (NaOH) were used at subcritical liquid treatment temperatures of 100 to 250°C. Meanwhile, deacetylation using 20%-50% NaOH was attempted on the deproteinised chitin. 1.8 M hydrochloric acid at a 1:10 solid-to-liquid solvent ratio produced chitin with acceptable quality during microwave-assisted demineralisation. Demineralised chitin subjected to SL treatment at 150°C and 4% NaOH had the best protein removal (84.6%). Chitosan with a high degree of deacetylation (80.68%) was obtained at a lower alkalinity of 30% NaOH, derived from SL-deproteinised chitin (4% NaOH at 100°C). The crystallinity of chitin after SL treatment was reduced significantly from 72.4% to 59.4%, which allows easier access for the solvent to hydrolyse the acetamide bond. This study confirms that good quality chitosan can be produced by utilising SL treatment of demineralised chitin at a significantly short time and lower deacetylation solvent concentration.","PeriodicalId":44461,"journal":{"name":"Progress on Chemistry and Application of Chitin and its Derivatives","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42296080","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

INFLUENCE OF INITIAL STATE OF CHITOSAN MEMBRANES ON THEIR SEPARATION PROPERTIES IN PERVAPORATIVE DEHYDRATION 壳聚糖膜初始状态对渗透蒸发脱水分离性能的影响

IF 0.6

Progress on Chemistry and Application of Chitin and its Derivatives Pub Date : 2022-09-30 DOI: 10.15259/pcacd.27.007

M. Gnus

引用次数: 0

SYNTHESIS OF NEW CHITOSAN-CARBONATE HYDROXYAPATITE COMPOSITES WITH POTENTIAL APPLICATION IN BONE TISSUE ENGINEERING – PHYSICOCHEMICAL ANALYSIS 具有骨组织工程应用前景的新型壳聚糖-碳酸盐羟基磷灰石复合材料的合成-理化分析

IF 0.6

Progress on Chemistry and Application of Chitin and its Derivatives Pub Date : 2022-09-30 DOI: 10.15259/pcacd.27.017

Justyna Urbaniak, Barbara Kołodziejska, A. Kaflak

引用次数: 1

SYNTHESIS AND APPLICATION OF CHITOSAN HYDROXYAPATITE: A REVIEW 壳聚糖羟基磷灰石的合成及应用研究进展

IF 0.6

Progress on Chemistry and Application of Chitin and its Derivatives Pub Date : 2022-09-30 DOI: 10.15259/pcacd.27.001

N. Vokhidova, Kandiyor H. Ergashev, S. Rashidova

引用次数: 0

EFFECT OF CHITOSAN AND META-TOPOLIN IN MICROPROPAGATION OF VACCINIUM CORYMBOSUM 壳聚糖和间topolin对球栓苗微繁的影响

IF 0.6

Progress on Chemistry and Application of Chitin and its Derivatives Pub Date : 2022-09-30 DOI: 10.15259/pcacd.27.011

M. Krupa-Małkiewicz, Agata Jurkiewicz, I. Ochmian, Monika Figiel-Kroczyńska

{"title":"EFFECT OF CHITOSAN AND META-TOPOLIN IN MICROPROPAGATION OF VACCINIUM CORYMBOSUM","authors":"M. Krupa-Małkiewicz, Agata Jurkiewicz, I. Ochmian, Monika Figiel-Kroczyńska","doi":"10.15259/pcacd.27.011","DOIUrl":"https://doi.org/10.15259/pcacd.27.011","url":null,"abstract":"The culture medium is often optimised to improve growth and morphogenesis in vitro. The efficiency of chitosan (CH) and meta-topolin (mT) on in vitro growth of blueberries (Vaccinium corymbosum) cv Liberty was investigated. The explants were grown on Woody Plant Medium (WPM) supplemented with mT at a concentration of 0.2, 0.4, and 0.6 mg l-1 and WPM with chitosan with a molecular weight 3.33 kDa at 10, 20, and 40 ppm. WPM with the addition of 0.1 mg l-1 zeatin was used as a control. Among the tested combinations, the maximum mean shoot length (23.81 cm), the number of new shoots (1.34), fresh mass (42.29 g), and dry mass (14.24 g) were recorded on the control medium. The addition of lower concentrations of chitosan (10 and 20 ppm) to the WPM medium decreased shoot length (23%-24.5% of control), fresh mass (30%-40% of control), and dry mass (20%-29% of control). However, blueberries treated with 40 ppm chitosan had similar shoot lengths, but darker (112% of control) and greener (139% of control) leaves compared with the control. In contrast, mT had a negative effect on the studied traits of Liberty blueberries, regardless of the concentration.","PeriodicalId":44461,"journal":{"name":"Progress on Chemistry and Application of Chitin and its Derivatives","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48106534","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

EFFECT OF CHITOSAN-BASED SPRAYING ON THE QUALITY OF HIGHBUSH BLUEBERRIES (SUNRISE CULTIVAR) 壳聚糖喷施对高丛蓝莓(日出品种)品质的影响

IF 0.6

Progress on Chemistry and Application of Chitin and its Derivatives Pub Date : 2022-09-30 DOI: 10.15259/pcacd.27.005

Monika Figiel-Kroczyńska, I. Ochmian, M. Krupa-Małkiewicz

{"title":"EFFECT OF CHITOSAN-BASED SPRAYING ON THE QUALITY OF HIGHBUSH BLUEBERRIES (SUNRISE CULTIVAR)","authors":"Monika Figiel-Kroczyńska, I. Ochmian, M. Krupa-Małkiewicz","doi":"10.15259/pcacd.27.005","DOIUrl":"https://doi.org/10.15259/pcacd.27.005","url":null,"abstract":"The consumption of highbush blueberries has been growing rapidly in recent years due to their taste and health-promoting qualities. Various solutions have been sought to obtain the highest quality fruit after harvest. In the era of eco-friendly products, it is important that the methods used are natural and ecological. For this purpose, chitosan (CH) was sprayed five times on highbush blueberry bushes before harvesting. Different molecular weights of CH (5, 12, 21, 50, 125, and 500 kDa) were used in this study. The physical and biochemical characteristics of the fruit were investigated. The antioxidant activity, microbial contaminants, and mycotoxins in fruit were also analysed. Application of CH affected the quality of highbush blueberries after harvest. The molecular weight of CH had a significant effect on the studied traits. The application of high-molecular-weight CH improved physical characteristics such as the average weight of 100 blueberries, firmness, and puncture. Furthermore, the blueberries had a more intense blue colour; were characterised by a higher content of l-ascorbic acid and polyphenols, especially anthocyanins; and did not contain mycotoxins. Spraying with CH can be recommended in the organic cultivation of highbush blueberries to obtain robust fruit with health-promoting qualities.","PeriodicalId":44461,"journal":{"name":"Progress on Chemistry and Application of Chitin and its Derivatives","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44651775","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

CHITOSAN ADDUCT WITH TRANEXAMIC ACID AND ITS HAEMOSTATIC EFFECT 壳聚糖与氨甲环酸的加合物及其止血作用

IF 0.6

Progress on Chemistry and Application of Chitin and its Derivatives Pub Date : 2022-09-30 DOI: 10.15259/pcacd.27.002

V. Antonyuk, Lidiia Panchak, R. Stoika, N. Manko, S. Khomyak

引用次数: 0