Статья

Synthesis, Characterization, and Application of Carboxymethyl Cellulose from Asparagus Stalk End

Warinporn KlunklinSchool of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, ThailandKittisak JantanasakulwongCenter of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, ThailandYuthana PhimolsiripolCenter of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, ThailandNoppol LeksawasdiCenter of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, ThailandPhisit SeesuriyachanSchool of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, ThailandThanongsak ChaiyasoSchool of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, ThailandChayatip InsomphunSchool of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, ThailandSuphat PhongthaiSchool of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, ThailandPensak JantrawutCenter of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, ThailandSarana Rose SommanoCenter of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, ThailandWinita PunyodomCenter of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, ThailandAlissara ReungsangAcademy of Science, Royal Society of Thailand, Bangkok 10300, ThailandThi Minh Phuong NgoDepartment of Chemical Technology and Environment, The University of Danang—University of Technology and Education, Danang 550000, VietnamPornchai RachtanapunCenter of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand

2020en

ABI

Аннотация

Cellulose from Asparagus officinalis stalk end was extracted and synthesized to carboxymethyl cellulose (CMCas) using monochloroacetic acid (MCA) via carboxymethylation reaction with various sodium hydroxide (NaOH) concentrations starting from 20% to 60%. The cellulose and CMCas were characterized by the physical properties, Fourier Transform Infrared spectroscopy (FTIR), Differential scanning calorimetry (DSC), Scanning electron microscopy (SEM) and X-ray diffraction (XRD). In addition, mechanical properties of CMCas films were also investigated. The optimum condition for producing CMCas was found to be 30% of NaOH concentration for the carboxymethylation reaction, which provided the highest percent yield of CMCas at 44.04% with the highest degree of substitution (DS) at 0.98. The melting point of CMCas decreased with increasing NaOH concentrations. Crystallinity of CMCas was significantly deformed (p < 0.05) after synthesis at a high concentration. The L* value of the CMCas was significantly lower at a high NaOH concentration compared to the cellulose. The highest tensile strength (44.59 MPa) was found in CMCas film synthesized with 40% of NaOH concentration and the highest percent elongation at break (24.99%) was obtained in CMCas film treated with 30% of NaOH concentration. The applications of asparagus stalk end are as biomaterials in drug delivery system, tissue engineering, coating, and food packaging.

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Идентификаторы

DOI: 10.3390/polym13010081

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar