Cellulose Chemistry and Technology最新文献_第8页

CHEMO-MECHANICAL EXTRACTION AND CHARACTERIZATION OF SAYOTE (SECHIUM EDULE) FIBERS AT VARYING FIBER MATURITY 不同纤维成熟度下赛奥特纤维的化学-机械提取及表征

IF 1.3 4区农林科学

Cellulose Chemistry and Technology Pub Date : 2023-02-28 DOI: 10.35812/cellulosechemtechnol.2023.57.03

Jennifer Bandao-Antonio, J. M. A. DIAZ

{"title":"CHEMO-MECHANICAL EXTRACTION AND CHARACTERIZATION OF SAYOTE (SECHIUM EDULE) FIBERS AT VARYING FIBER MATURITY","authors":"Jennifer Bandao-Antonio, J. M. A. DIAZ","doi":"10.35812/cellulosechemtechnol.2023.57.03","DOIUrl":"https://doi.org/10.35812/cellulosechemtechnol.2023.57.03","url":null,"abstract":"\"Cellulosic plant fibers are good reinforcing materials for composites because they are cheap, light weight, and exhibit good mechanical properties. The isolation of the crystalline portion exposes the stable hydrogen bond network that can form intermolecular bonding with other matrices, such as starch, polyvinyl alcohol and chitosan, among others. Sundried and undried sayote (Sechium edule) vines, of varying degrees of maturity, were subjected to uniform chemomechanical extraction procedures to obtain crystalline fibers. The chemo-mechanically extracted fibers were characterized using differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). DSC thermograms revealed that the sun-dried and mature sample exhibited the narrowest endotherm, indicating the presence of fewer amorphous structures. FTIR spectra showed that the numbers of functional groups present in the fiber samples decreased with increasing degree of maturity. SEM micrographs reveal that the mature portion of the sayote vine had more fibrous and orderly features, compared to the samples extracted from the younger and intermediate portions. Further, chemo-mechanical extraction and X-ray diffraction (XRD) analysis of fibers from mature, sun-dried sayote vines also revealed a relative crystallinity index of the extracted fiber of 65%. The fiber yield from the mature portion of the vine was 9%. Sayote (Sechium edule) vine can be a promising source of crystalline fibers for composite fabrication.\"","PeriodicalId":10130,"journal":{"name":"Cellulose Chemistry and Technology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44825715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

UTILISATION OF CONICAL PRICKLES OF BOMBAX CEIBA BARK FOR MULTIFUNCTIONAL MOSQUITO REPELLENT COLOURATION OF COTTON 木棉树皮锥形皮在棉花多功能驱蚊染色中的应用

IF 1.3 4区农林科学

Cellulose Chemistry and Technology Pub Date : 2023-02-28 DOI: 10.35812/cellulosechemtechnol.2023.57.18

Dharmanshu Dharmanshu, Ankit Singh, Madhav Saini, Javed Sheikh

{"title":"UTILISATION OF CONICAL PRICKLES OF BOMBAX CEIBA BARK FOR MULTIFUNCTIONAL MOSQUITO REPELLENT COLOURATION OF COTTON","authors":"Dharmanshu Dharmanshu, Ankit Singh, Madhav Saini, Javed Sheikh","doi":"10.35812/cellulosechemtechnol.2023.57.18","DOIUrl":"https://doi.org/10.35812/cellulosechemtechnol.2023.57.18","url":null,"abstract":"\"The development of novel routes for the production of functional textiles is an urgent need. Natural dyes are a safe and sustainable choice for the colouration of textiles. To achieve the colouration of textiles with natural dyes, mordanting methods have been highly explored; the present work targets the functional natural dyeing of cotton by the in-situ development of azoic dye. The paper discusses a new application approach of a novel natural dye (derived from conical prickles of Bombax ceiba bark) to cotton using mosquito repellent ethyl anthranilate. The dye obtained from the extract of Bombax ceiba bark conical prickles (CPBCE) was further converted into azoic dye by reacting it with diazotised ethyl anthranilate. The developed coloured cotton fabric was endowed with mosquito repellence, antibacterial action, and UV protection. The colouration properties and fastness of dyed samples were examined using standard methods. Moreover, the dyed samples were also characterised using TGA (thermogravimetric analysis) and XRD (X-ray diffraction) analysis. Thus, 100% mosquito repellent properties, good antibacterial protection, and excellent UV protection were imparted to cotton.\"","PeriodicalId":10130,"journal":{"name":"Cellulose Chemistry and Technology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47852018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

CELLULOSE NANOCRYSTALS FROM SUGARCANE BAGASSE: ISOLATION, CHARACTERIZATION AND APPLICATION 蔗渣纤维素纳米晶:分离、表征及应用

IF 1.3 4区农林科学

Cellulose Chemistry and Technology Pub Date : 2023-02-28 DOI: 10.35812/cellulosechemtechnol.2023.57.04

Sicily Rilu Joseph, Helen T. P. Sandra, Arya Nair, Saritha A. Chandran, M. Ushamani

引用次数: 0

CHARACTERISTICS OF BIOCHAR PRODUCED FROM CELLULOSE FOR CAPTURE OF ATMOSPHERIC CO2" 纤维素制备生物炭捕获大气co2的特性

IF 1.3 4区农林科学

Cellulose Chemistry and Technology Pub Date : 2023-02-28 DOI: 10.35812/cellulosechemtechnol.2023.57.20

Lídia Kunz Lazzari, Eduardo Fischer Kerche, Rodrigo DENIZARTE DE OLIVEIRA POLKOWSKI, R. Albuquerque, D. Perondi

引用次数: 0

POROUS POLYMER SCAFFOLDS DERIVED FROM BIORESOURCES FOR BIOMEDICAL APPLICATIONS 用于生物医学应用的生物源多孔聚合物支架

IF 1.3 4区农林科学

Cellulose Chemistry and Technology Pub Date : 2023-02-28 DOI: 10.35812/cellulosechemtechnol.2023.57.11

Cristian Daniel Bohórquez-Moreno, K. Öksüz, E. Dinçer

{"title":"POROUS POLYMER SCAFFOLDS DERIVED FROM BIORESOURCES FOR BIOMEDICAL APPLICATIONS","authors":"Cristian Daniel Bohórquez-Moreno, K. Öksüz, E. Dinçer","doi":"10.35812/cellulosechemtechnol.2023.57.11","DOIUrl":"https://doi.org/10.35812/cellulosechemtechnol.2023.57.11","url":null,"abstract":"\"The development of sustainable materials in medical treatment for the controlled release of drugs has generated interest in the field in view of the environmental and energy challenges faced during the continuous production of materials in the sector. In the present study, the potential use of sponges based on combinations of three types of starch (corn, wheat, and rice starch) with poly(vinyl alcohol) was investigated to evaluate their morphological properties, swelling ratio, in vitro biodegradation, antibacterial activity, hemolysis, and blood clotting index. The synthesis process is based on a cost-effective method for wide application in the medical industry, yielding sponges with a high swelling index of up to 8 times the original volume. A slight antibacterial activity was also observed when rice and corn starch were used. In addition, different morphological and physical properties were observed depending on the type of starch added to the formulation, allowing a variety of responses to treatment requirements, depending on factors such as the duration of treatment and the patient’s blood characteristics in terms of clot formation or immune response.\"","PeriodicalId":10130,"journal":{"name":"Cellulose Chemistry and Technology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44586210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

DEVELOPMENT OF MUCOADHESIVE CELLULOSE DERIVATIVES BASED FILMS FOR THE TREATMENT OF VAGINAL CANDIDIASIS 黏附纤维素衍生物治疗阴道念珠菌病薄膜的研制

IF 1.3 4区农林科学

Cellulose Chemistry and Technology Pub Date : 2023-02-28 DOI: 10.35812/cellulosechemtechnol.2023.57.12

O. Tarawneh, A. Hammad, H. Mahfouz, Lama A. Hamadneh, R. Hamed, I. Hamadneh, Ameen Rasheed Al-Assi

{"title":"DEVELOPMENT OF MUCOADHESIVE CELLULOSE DERIVATIVES BASED FILMS FOR THE TREATMENT OF VAGINAL CANDIDIASIS","authors":"O. Tarawneh, A. Hammad, H. Mahfouz, Lama A. Hamadneh, R. Hamed, I. Hamadneh, Ameen Rasheed Al-Assi","doi":"10.35812/cellulosechemtechnol.2023.57.12","DOIUrl":"https://doi.org/10.35812/cellulosechemtechnol.2023.57.12","url":null,"abstract":"\"The development of easily administered targeted delivery for vaginal candidiasis is an area of active research. Challenges emerge from the specific conditions that may not permit enough time for the dosage form to reside on the infected area. Herein, we propose to develop films based on cellulose derivatives for the treatment of vaginal candidiasis. Gels of sodium carboxymethyl cellulose (Na-CMC) (F1), equal combination of Na-CMC and hydroxyethyl cellulose (HEC) (F2) and hydroxyethyl cellulose (HEC) (F3) were prepared and loaded with nystatin (NYS). The resultant gels were dried using solvent casting and characterized to detect glass transition temperature (Tg), mechanical properties, mucoadhesion, inhibition of candida growth toxicity on human embryonic kidney 293 cells (HEK) cells and drug release. Tg was affected by the polymer type and was found to be highest in F2, where equal ratios of HEC and Na-CMC were used. Mucoadhesion was highest in F1 (Na-CMC) films. The films showed moderate toxicity. The zone of inhibition was observed for the three formulations. Drug release was affected by the polymer type and was complete after 8 h in F2. The findings allowed concluding that the cellulose derivative based films were successfully prepared and were efficient in allowing the drug to elute and minimizing the growth of candida.\"","PeriodicalId":10130,"journal":{"name":"Cellulose Chemistry and Technology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45306587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

HYBRID NANOCOMPOSITES OF METHYLCELLULOSE: PHYSICO-CHEMICAL AND ANTIMICROBIAL PROPERTIES 甲基纤维素杂化纳米复合材料的物理化学及抗菌性能

IF 1.3 4区农林科学

Cellulose Chemistry and Technology Pub Date : 2023-02-28 DOI: 10.35812/cellulosechemtechnol.2023.57.16

M. Kodirkhonov, N. Vokhidova, S. S. Rashidova, X. Nie, Jamshidkhon Kadirkhanov

{"title":"HYBRID NANOCOMPOSITES OF METHYLCELLULOSE: PHYSICO-CHEMICAL AND ANTIMICROBIAL PROPERTIES","authors":"M. Kodirkhonov, N. Vokhidova, S. S. Rashidova, X. Nie, Jamshidkhon Kadirkhanov","doi":"10.35812/cellulosechemtechnol.2023.57.16","DOIUrl":"https://doi.org/10.35812/cellulosechemtechnol.2023.57.16","url":null,"abstract":"\"Stabilized silver nanoparticles were obtained in the presence of a reducing agent – NaBH4 and a stabilizer – methylcellulose, at 40 °C and pH = 5.35-11. The stabilizing role of the polymer is shown, as it prevents the oxidation and agglomeration of nanoparticles. It was found that the synthesis pH is an important factor in the formation of stable nanoparticles, which contributes to the regulation of their hydrodynamic radius. The results of UV spectroscopy established that the synthesized samples of silver nanoparticles achieve aggregative stability within 96 hours. Solutions and films of hybrid nanocomposites were comprehensively investigated by spectral, XRD and thermal studies. The diffractogram of silver NPs, corresponding to JCPDS No. 04-0783, was confirmed by the XRD method. In the studied pH range, the hydrodynamic radius and distribution of Ag NPs in methylcellulose solutions had a polymodal character, and an increase in pH to 9–11 led to an increase in particle aggregation. It was found that stabilized silver nanoparticles showed antimicrobial activity against microorganisms – Streptococcus salivarius, Staphylococcus saprophyticus, Streptococcus mitis and Proteus vulgaris, with the formation of an inhibitory zone in the range of 15.0±0.2÷20.0±0.4 mm. The synthesized samples are of applied interest in the development of antibacterial drug systems.\"","PeriodicalId":10130,"journal":{"name":"Cellulose Chemistry and Technology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48207955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

"OPTIMIZATION OF ENZYMATIC DESIZING AND SCOURING OF COTTON FABRIC BY RESPONSE SURFACE METHODOLOGY" 响应面法优化棉织物酶退煮工艺

IF 1.3 4区农林科学

Cellulose Chemistry and Technology Pub Date : 2023-02-28 DOI: 10.35812/cellulosechemtechnol.2023.57.17

D. Grujić, A. Savić, Saša Papuga, Milena Milošević, M. Kolar, Predrag Milanović, Jovana Z Milanovic

{"title":"\"OPTIMIZATION OF ENZYMATIC DESIZING AND SCOURING OF COTTON FABRIC BY RESPONSE SURFACE METHODOLOGY\"","authors":"D. Grujić, A. Savić, Saša Papuga, Milena Milošević, M. Kolar, Predrag Milanović, Jovana Z Milanovic","doi":"10.35812/cellulosechemtechnol.2023.57.17","DOIUrl":"https://doi.org/10.35812/cellulosechemtechnol.2023.57.17","url":null,"abstract":"\"The study aimed to estimate the influence of temperature, time, and ultrasound application during desizing and scouring of cotton with -amylase and pectinase, respectively, on the weight loss, breaking force and color difference between raw and bio-scoured cotton, to obtain purified and hydrophilic cotton, with a simultaneous slight decrease in mechanical properties. Under the optimal conditions, determined by the application of Response Surface Methodology (time – 30 min, temperature – 59.4 °C, with ultrasound treatment), a weight loss of 4.97%, color difference of 3.86, and a breaking force of 730.22N were obtained. The bio-scoured cotton fabric was also characterized in terms of electrokinetic and sorption properties, chemical composition and morphology of the cotton surface by zeta-potential measurement, wicking and contact angle determination, FTIR and SEM characterization, respectively. The developed enzymatic scouring process leads to obtaining purified, whiter and hydrophilic cotton, with slight changes in mechanical properties, which makes bio-scoured cotton fabric suitable for further wet processing.\"","PeriodicalId":10130,"journal":{"name":"Cellulose Chemistry and Technology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45702964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

"EFFICIENT HETEROGENEOUS SYNTHESIS OF POLYGALACTURONIC HYDROXAMIC ACID: A VERSATILE CHELATOR FOR METAL ION BINDING" 多聚半乳糖醛酸异羟肟酸的高效多相合成：一种用于金属离子结合的多功能螯合剂

IF 1.3 4区农林科学

Cellulose Chemistry and Technology Pub Date : 2023-02-28 DOI: 10.35812/cellulosechemtechnol.2023.57.09

H. Würfel, Wenqiang Dang, T. Heinze

引用次数: 0

DEVELOPMENT AND CHARACTERIZATION OF HEMP-CONTAINING HYBRID YARNS FOR CLOTHING 服装用含大麻混纺纱线的研制与性能研究

IF 1.3 4区农林科学

Cellulose Chemistry and Technology Pub Date : 2023-02-28 DOI: 10.35812/cellulosechemtechnol.2023.57.19

Gamze Okyay, O. Demiryurek, M. Avcı, H. Bilgiç

{"title":"DEVELOPMENT AND CHARACTERIZATION OF HEMP-CONTAINING HYBRID YARNS FOR CLOTHING","authors":"Gamze Okyay, O. Demiryurek, M. Avcı, H. Bilgiç","doi":"10.35812/cellulosechemtechnol.2023.57.19","DOIUrl":"https://doi.org/10.35812/cellulosechemtechnol.2023.57.19","url":null,"abstract":"\"Known for its sustainable properties, the usability of hemp instead of conventional cotton hybrid yarns for clothing was investigated by spinning hybrid ring yarns using conventional cotton, viscose-hemp, and organic cotton-viscose-hemp blends for the sheath and elastane and polyester (Lycra and T400) for the core in the yarn structure. Unevenness, yarn imperfections, hairiness, tenacity, and breaking elongation properties of the spun hybrid yarns were examined comparatively by statistical analysis methods. The findings revealed that sheath fiber type, number of components in the yarn structure, and blend ratio were influential factors on yarn quality. Using hemp fiber in the yarn structure slightly decreased the yarn properties, except for tenacity, in general. This situation was more visible in hybrid yarns, which have three different fibers in the sheath. Blending viscose and hemp fibers in the yarn sheath structure provided a synergetic effect, improving the weak properties of both fibers. These yarns had nearly the same tenacity values (from 12.98 to 15.47) as conventional cotton yarns (from 15.24 to 16.8), which could be explained by the fact that hemp fiber has a higher tenacity value (45 cN/tex) than other fibers. Moreover, these yarns had the highest elongation values (from 15.88 to 10.79) due to the good elongation properties of the viscose fibers (20%), compared to other sheath fibers. As a result, when the produced yarns were evaluated in terms of sustainability and performance, viscose-hemp-blended yarns had the optimum yarn properties.\"","PeriodicalId":10130,"journal":{"name":"Cellulose Chemistry and Technology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47282345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0