Effect of Monochloroacetic Acid on Properties of Carboxymethyl Bacterial Cellulose Powder and Film from Nata de Coco

被引：17

作者：

Rachtanapun, Pornchai ^{[1
,2
,3
]}

Klunklin, Warinporn ^{[1
]}

Jantrawut, Pensak ^{[2
,4
]}

Leksawasdi, Noppol ^{[1
,2
,3
]}

Jantanasakulwong, Kittisak ^{[1
,2
,3
]}

Phimolsiripol, Yuthana ^{[1
,2
,3
]}

Seesuriyachan, Phisit ^{[1
,2
]}

Chaiyaso, Thanongsak ^{[1
,2
]}

Ruksiriwanich, Warintorn ^{[2
,4
]}

Phongthai, Suphat ^{[1
,2
]}

Sommano, Sarana Rose ^{[3
,5
]}

Punyodom, Winita ^{[3
,6
]}

Reungsang, Alissara ^{[7
,8
,9
]}

Ngo, Thi Minh Phuong ^{[10
]}

机构：

[1] Chiang Mai Univ, Fac Agroind, Sch Agroind, Chiang Mai 50100, Thailand

[2] Chiang Mai Univ, Cluster Agro Biocircular Green Ind Agro BCG, Chiang Mai 50100, Thailand

[3] Chiang Mai Univ, Ctr Excellence Mat Sci & Technol, Chiang Mai 50200, Thailand

[4] Chiang Mai Univ, Fac Pharm, Dept Pharmaceut Sci, Chiang Mai 50200, Thailand

[5] Chiang Mai Univ, Fac Agr, Dept Plant & Soil Sci, Plant Bioact Compound Lab BAC, Chiang Mai 50200, Thailand

[6] Chiang Mai Univ, Fac Sci, Dept Chem, Chiang Mai 50200, Thailand

[7] Khon Kaen Univ, Fac Technol, Dept Biotechnol, Khon Kaen 40002, Thailand

[8] Khon Kaen Univ, Res Grp Dev Microbial Hydrogen Prod Proc, Khon Kaen 40002, Thailand

[9] Royal Soc Thailand, Acad Sci, Bangkok 10300, Thailand

[10] Univ Technol & Educ, Univ Danang, Dept Chem Technol & Environm, Danang 550000, Vietnam

来源：

POLYMERS | 2021年 / 13卷 / 04期

关键词：

bacterial cellulose; carboxymethyl bacterial cellulose; CMCn; carboxymethyl cellulose; CMC; monochloroacetic acid; MCA;

D O I：

10.3390/polym13040488

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Nata de coco has been used as a raw material for food preparation. In this study, the production of carboxymethyl cellulose (CMC) film from nata de coco and the effect of monochloroacetic acid on carboxymethyl bacterial cellulose (CMCn) and its film were investigated. Bacterial cellulose from nata de coco was modified into CMC form via carboxymethylation using various concentrations of monochloroacetic acid (MCA) at 6, 12, 18, and 24 g per 15 g of cellulose. The results showed that different concentrations of MCA affected the degree of substitution (DS), chemical structure, viscosity, color, crystallinity, and morphology of CMCn. The optimum treatment for carboxymethylation was found using 24 g of MCA per 15 g of cellulose, which provided the highest DS at 0.83. The morphology of CMCn was related to DS value; a higher DS value showed denser and smoother surface than nata de coco cellulose. The various MCA concentrations increased the mechanical properties (tensile strength and percentage of elongation at break) and water vapor permeability of CMCn, which were related to the DS value.

引用

页码：1 / 13

页数：12

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