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dc.contributor.authorWarinporn Klunklinen_US
dc.contributor.authorKittisak Jantanasakulwongen_US
dc.contributor.authorYuthana Phimolsiripolen_US
dc.contributor.authorNoppol Leksawasdien_US
dc.contributor.authorPhisit Seesuriyachanen_US
dc.contributor.authorThanongsak Chaiyasoen_US
dc.contributor.authorChayatip Insomphunen_US
dc.contributor.authorSuphat Phongthaien_US
dc.contributor.authorPensak Jantrawuten_US
dc.contributor.authorSarana Rose Sommanoen_US
dc.contributor.authorWinita Punyodomen_US
dc.contributor.authorAlissara Reungsangen_US
dc.contributor.authorThi Minh Phuong Ngoen_US
dc.contributor.authorPornchai Rachtanapunen_US
dc.description.abstract© 2020 by the authors. Licensee MDPI, Basel, Switzerland. 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 ad-dition, 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. Crys-tallinity 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.en_US
dc.subjectMaterials Scienceen_US
dc.titleSynthesis, characterization, and application of carboxymethyl cellulose from asparagus stalk enden_US
article.volume13en_US of Danangen_US Kaen Universityen_US Mai Universityen_US of Scienceen_US
Appears in Collections:CMUL: Journal Articles

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