High Substitution Synthesis of Carboxymethyl Chitosan for Properties Improvement of Carboxymethyl Chitosan Films Depending on Particle Sizes

被引：23

作者：

Thanakkasaranee, Sarinthip ^{[1
]}

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

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

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

Seesuriyachan, Phisit ^{[1
,2
]}

Chaiyaso, Thanongsak ^{[1
,2
]}

Jantrawut, Pensak ^{[3
,4
]}

Ruksiriwanich, Warintorn ^{[3
,4
]}

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

Punyodom, Winita ^{[3
,6
]}

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

Thi Minh Phuong Ngo ^{[10
]}

Thipchai, Parichat ^{[11
]}

Tongdeesoontorn, Wirongrong ^{[12
,13
,14
]}

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

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 Danang, Dept Chem Technol & Environm, Univ Technol & Educ, Danang 550000, Vietnam

[11] Chiang Mai Univ, Fac Sci, Doctor Philosophy Program Nanosci & Nanotechnol, Int Program Interdisciplinary, Chiang Mai 50200, Thailand

[12] Mae Fah Luang Univ, Sch Agroind, Chiang Rai 57100, Thailand

[13] Mae Fah Luang Univ, Res Grp Innovat Food Packaging, Chiang Rai 57100, Thailand

[14] Mae Fah Luang Univ, Biomat Unit, Chiang Rai 57100, Thailand

来源：

MOLECULES | 2021年 / 26卷 / 19期

关键词：

chitosan; carboxymethyl chitosan; particle size; water solubility; degree of substitution; ANTIMICROBIAL ACTIVITY; MECHANICAL-PROPERTIES; AQUEOUS-SOLUTION; CELLULOSE; OPTIMIZATION; WATER; SOLUBILITY; STABILITY;

D O I：

10.3390/molecules26196013

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

This study investigated the effect of chitosan particle sizes on the properties of carboxymethyl chitosan (CMCh) powders and films. Chitosan powders with different particle sizes (75, 125, 250, 450 and 850 mu m) were used to synthesize the CMCh powders. The yield, degree of substitution (DS), and water solubility of the CMCh powders were then determined. The CMCh films prepared with CMCh based on chitosan with different particle sizes were fabricated by a solution casting technique. The water solubility, mechanical properties, and water vapor transmission rate (WVTR) of the CMCh films were measured. As the chitosan particle size decreased, the yield, DS, and water solubility of the synthesized CMCh powders increased. The increase in water solubility was due to an increase in the polarity of the CMCh powder, from a higher conversion of chitosan into CMCh. In addition, the higher conversion of chitosan was also related to a higher surface area in the substitution reaction provided by chitosan powder with a smaller particle size. As the particle size of chitosan decreased, the tensile strength, elongation at break, and WVTR of the CMCh films increased. This study demonstrated that a greater improvement in water solubility of the CMCh powders and films can be achieved by using chitosan powder with a smaller size.</p>

引用

页数：16

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