Carboxymethyl cellulose from rice stubble waste

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dc.contributor.authorPattrathip Rodsamran
dc.contributor.authorRungsinee Sothornvit
dc.contributor.correspondenceR. Sothornvit; Department of Food Engineering, Kasetsart University, Kamphaengsaen Campus, Nakhon Pathom, Kamphaeng Saen, 73140, Thailand; email: engrns@ku.ac.th
dc.date.accessioned2025-03-10T07:36:05Z
dc.date.available2025-03-10T07:36:05Z
dc.date.issued2020
dc.description.abstractRice stubble is an agricultural waste with 30.67% yield of cellulose (90.05% _-cellulose content) to be synthesized as carboxymethyl cellulose (CMC). Hemicellulose and lignin were first removed and later rice stubble cellulose was swollen in 30% NaOH and isopropanol as a solvent. Synthesis conditions such as chloroacetic acid content (5Ð7 g in 5 g of alkali cellulose), reaction temperature (50 and 70) and time (180, 270 and 360 min) were investigated to obtain CMC from rice stubble (CMCr). The 7 g of chloroacetic acid at 50 ûC for 180 min provided the best quality of CMCr based on 5 g of rice stubble cellu-lose with degree of substitution, viscosity and purity of 0.64, 36.03 cP and 90.18%, respectively. The presence of carboxymethyl substituents was verified by Fourier transform infrared spectroscopy. CMCr showed commercially low viscosity material and possibly used as a film forming packaging material for food and pharmaceutical products. >© (Publication Year), (publisher Name). All rights reserved.
dc.identifier.citationSongklanakarin Journal of Science and Technology
dc.identifier.doi10.14456/sjst-psu.2020.59
dc.identifier.issn1253395
dc.identifier.scopus2-s2.0-85084037711
dc.identifier.urihttps://repository.dusit.ac.th//handle/123456789/4772
dc.languageEnglish
dc.publisherPrince of Songkla University
dc.rights.holderScopus
dc.subjectCarboxymethyl cellulose
dc.subjectDegree of substitution
dc.subjectPurity
dc.subjectRice stubble
dc.subjectWaste
dc.titleCarboxymethyl cellulose from rice stubble waste
dc.typeArticle
mods.location.urlhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85084037711&doi=10.14456%2fsjst-psu.2020.59&partnerID=40&md5=ae92e9c34c715b2efa51b4d8dec0e227
oaire.citation.endPage460
oaire.citation.issue2
oaire.citation.startPage454
oaire.citation.volume42
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