겔화제의 농도와 온도 변화에 따른 키토산 졸의 겔화 특성

김태영; 오찬권; 문희; 양재호

Journal of the Korean Industrial and Engineering Chemistry, Vol.6, No.4, 700-706, August, 1995

Export Citation

겔화제의 농도와 온도 변화에 따른 키토산 졸의 겔화 특성

Characteristics of Chitosan Gelation with the Variations of Temperature and Concentration of Gelation Agent

김태영, 오찬권, 문희, 양재호

초록

키틴을 알칼리 수용액으로 처리하여 제조한 키토산을 2wt% 초산수용액에 용해시킨 키토산 colloid 용액의 겔화 특성을 겔화제의 농도와 온도 그리고 키토산 용액의 농도 변화에 대해 조사하였다. 실험에 사용한 키토산의 평균 분자량은 약 5.17×10⁵ 이며, 탈아세틸화도는 약 85%였다. 겔화제로 NaOH를 사용했으며 겔화 현상을 설명하기 위하여 간단한 확산모델을 이용하였다. 겔화제의 농도와 온도 그리보 키토산 용액의 농도가 증가함에 따라 키토산겔 내부에서 겔화제의 확산계수는 증가했다.

Gelation of colloidal chitosan solution was investigated experimentally. The chitosan solution was prepared by dissolving chitosan converted from alkali-treated chitin into 2wt% acetic acid aqueous solution. Characteristics of chitosan gelation was investigated in terms of concentration variation of gelation agent, temperature and concentration of the chitosan solution. The average molecular weight and the degree of deacetylation of the chitosan used here were determined to be 5.17×10⁵ and 85%, respectively. Sodium hydroxide solutions were used as gelation agents. A simple diffusion model was applied to study the gelation rate of the chitosan solution. The diffusion coefficient of the gelation agent in the chitosan gel increased with increasing its concentration of the casting solution, temperature and concentration of the chitosan solution.

[References]

Roberts GAF, "Chitin Chemistry," 1, 1, Macmillan Press Ltd, London (1992)
Muzarelli RAA, "Chitin," Pergamon Press, Oxford (1977)
Rorrer GL, Hsien TY, Ind. Eng. Chem. Res., 32, 2170 (1993)
Roberts GAF, Tayler KE, Makromol. Chem., 109, 951 (1986)
Kurita K, Koyama Y, Taniguchi A, J. Appl. Polym. Sci., 31, 1169 (1986)
Kurita K, Ichikawa H, Ishizeki S, Fujisaki H, Iwakura Y, Makromol. Chem., 183, 1161 (1982)
Seiichi T, Hiroshi S, Chem. Abstr., 106, 7013 (1987)
Lozisky VI, Gamza-Zade AI, Rogozin SV, Davankov VA, Tsyurupa MP, SU 827492 (1978)
Stamberg J, Peska J, Jilek R, Chem. Abstr., 99, 109347 (1983)
김병회, "이화학대사전," 45 (1993)
Geankoplis CJ, "Mass Transport Phenomena," 21, Holt Rinehart and Winston, New York (1972)
Roberts GAF, Ghobad GM, Macromol. Chem., 189, 195 (1988)
Raymond L, Morin FG, Marchessault RH, Carbohydrate Res., 246, 331 (1993)
Roberts GAF, "Chitin Chemistry," 1, 87, Macmillan Press Ltd., London (1992)
Park WK, Kim HK, Kim KY, Bum SH, Kim JY, J. Korean Soc. Food Nutr., 23, 353 (1994)
Maeda M, Murakami H, Ohta H, Tajima M, Biosci. Biotech. Biochem., 56, 427 (1992)

[Referenced By]

[1] Roberts GAF, "Chitin Chemistry," 1, 1, Macmillan Press Ltd, London (1992)

[2] Muzarelli RAA, "Chitin," Pergamon Press, Oxford (1977)

[3] Rorrer GL, Hsien TY, Ind. Eng. Chem. Res., 32, 2170 (1993)

[4] Roberts GAF, Tayler KE, Makromol. Chem., 109, 951 (1986)

[5] Kurita K, Koyama Y, Taniguchi A, J. Appl. Polym. Sci., 31, 1169 (1986)

[6] Kurita K, Ichikawa H, Ishizeki S, Fujisaki H, Iwakura Y, Makromol. Chem., 183, 1161 (1982)

[7] Seiichi T, Hiroshi S, Chem. Abstr., 106, 7013 (1987)

[8] Lozisky VI, Gamza-Zade AI, Rogozin SV, Davankov VA, Tsyurupa MP, SU 827492 (1978)

[9] Stamberg J, Peska J, Jilek R, Chem. Abstr., 99, 109347 (1983)

[10] 김병회, "이화학대사전," 45 (1993)

[11] Geankoplis CJ, "Mass Transport Phenomena," 21, Holt Rinehart and Winston, New York (1972)

[12] Roberts GAF, Ghobad GM, Macromol. Chem., 189, 195 (1988)

[13] Raymond L, Morin FG, Marchessault RH, Carbohydrate Res., 246, 331 (1993)

[14] Roberts GAF, "Chitin Chemistry," 1, 87, Macmillan Press Ltd., London (1992)

[15] Park WK, Kim HK, Kim KY, Bum SH, Kim JY, J. Korean Soc. Food Nutr., 23, 353 (1994)

[16] Maeda M, Murakami H, Ohta H, Tajima M, Biosci. Biotech. Biochem., 56, 427 (1992)