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Preparation of Solutol?? HS15 based solid dispersion of curcumin

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Author(s)
서상완
Issued Date
2009
Abstract
이번 연구의 목적은 계면활성제를 운반체로 한 쿠르쿠민 고체분산체를 제조하여 쿠르쿠민의 용해도와 안정성을 증가시키는 것이다. 다양한 계면활성제 검색을 통해 pH 1.2에서 솔루톨?? HS15가 가장 효과적으로 쿠르쿠민의 용해도를 증가시킨다는 것을 확인하였다. 뿐만 아니라 pH 1.2, 6.8 그리고 7.4 에서 솔루톨?? HS15에 의해 쿠르쿠민의 안정성이 증가되는 것을 확인할 수 있었다. 이에 솔루톨?? HS15를 이용하여 쿠르쿠민의 고체분산체를 용매법으로 제조하여 보았다. 제조된 고체분산체의 용해도, 약물 결정성, 용출률 및 물리적 안정성을 시험하였다. 쿠르쿠민의 용해도는 고체분산체 중의 솔루톨?? HS15의 양이 증가함에 따라 비례적으로 증가하였으며 X선 분석을 통하여 고체분산체 내의 약물이 모두 무결정 상태로 존재함을 알 수 있었다. 쿠르쿠민과 솔루톨?? HS15을 1:10 무게 비율로 고체분산체를 제조하여 pH 6.8 용액에서 용출률을 조사하였고, 순수 쿠르쿠민 (약 0%), 물리적 혼합물 (약 10 %), 용융 혼합물 (약 80 %) 보다 뛰어난 용출률 (60분 이내에 90 % 이상 용출)을 나타냄을 알 수 있었다. 12주 동안의 보관에도 1:10 고체분산체의 용해도 감소는 관찰되지 않았다. 마지막으로 레트를 이용하여 in vivo 실험을 수행하였다. 1:10 고체분산체의 AUC0-12h 와 Cmax 가 순수 쿠르쿠민의 비해 훨씬 증가됨이 관찰 되었다. 결론적으로 솔루톨?? HS15을 이용한 쿠르쿠민의 고체분산체는 쿠르쿠민의 생체이용률을 높이는데 유용한 제형임을 알 수 있다.|The aim of this study was to improve the solubility and stability of curcumin by solid dispersion using surfactant as carrrier. Among the various surfactants screened, Solutol?? HS15 was most effective to enhance the solubility of curcumin at pH 1.2. Moreover, enhanced stability of curcumin was observed at pH 1.2, 6.8 and 7.4 in the presence of Solutol?? HS15. Thus, Solid dispersion (SD) of curcumin was prepared with Solutol?? HS15 by the solvent method. Solubility, drug crystallinity, dissolution rate and physical stability of SD were then characterized. Solubility of curcumin was found to increase proportionally with the amount of Solutol?? HS15. X-ray diffraction (XRD) results indicated that the entire drug in SD was in amorphous state. SD of curcumin in weight ratio of 1:10 (w/w) enhanced dissolution rate (approx. 90% after 60 min) in pH 6.8 medium compared to that of pure curcumin (approx. 0%), physical mixture (approx. 10%) and melting mixture (approx. 80%). After 12 weeks of storage, solubility of curcumin from the optimized formulation was similar to that of fresh sample. Finally, in vivo experiment was also performed in rat. AUC0-12h and Cmax of 1:10 SD were significantly greater than that of pure curcumin. In conclusion, SD of curcumin with Solutol?? HS15 appeared to be useful for improving the bioavailability of curcumin.
Alternative Title
쿠르쿠민의 생체이용률 증가를 위한
Alternative Author(s)
Seo Sang Wan
Affiliation
조선대학교 약학대학 물리약학실험실
Department
일반대학원 약학
Advisor
최후균
Awarded Date
2010-02
Table Of Contents
국문초록 ……………………………………………………………vii
Abstract …………………………………………………ix
1. Introduction ……………………………1
2. Materials and methods …………..5
2.1 Materials ……………….………………………………5
2.2 Methods ………………….……...………………….5
2.2.1 Analysis of curcumin by HPLC ……….…………...5
2.2.2 Screening of surfactants …………….……………...6
2.2.3 Influence of Solutol?? HS15 on physico-chemical properties of curcumin …………………………………7
2.2.3.1 Effect of Solutol?? HS15 concentration on solubility .....…7
2.3.3.2 Effect of pH on solubility ...……………………7
2.2.3.3 Chemical stability studies …………………..…7
2.2.4 Preparation of solid dispersion, physical mixture and melting mixture …………………………………………………...8
2.2.5 Characterizations of solid dispersion ………………9
2.2.5.1 Solubility tests ……………………………………....9
2.2.5.2 Differential scanning calorimetry (DSC) ……….9
2.2.5.3 X-ray diffraction (XRD) ………………….………10
2.2.5.4 Dissolution tests ……………………....…………10
2.2.5.5 Physical stability tests ……….…………..……11
2.2.6 In vivo studies ………………………………..…11
2.2.6.1 Animal ………………………………….……… 11
2.2.6.2 Dosing and sampling …………….…………….11
2.2.6.3 Sample preparation …………….………………12
2.2.7 Pharmacokinetic parameters …………..........12
2.2.8 Statistical analysis …...…………………………13
3. Results and Discussion…………………13
3.1 Screening of Surfactants …………………………13
3.2 Influence of Solutol?? HS15 on physico-chemical properties of curcumin .………….…………..........14
3.3 Characterizations of solid dispersion ……….17
3.3.1 Solubility tests ………………………………..17
3.3.2 Differential scanning calorimetry (DSC) .…..19
3.3.3 X-ray diffraction (XRD) ………….…………….19
3.3.4 Dissolution tests ………………….…………..20
3.3.5 Physical stability tests ………….………….21
3.4 In vivo studies …………..…………………….22
4. Conclusions…………………………….23
5. References……………………………...25
Degree
Master
Publisher
조선대학교
Citation
서상완. (2009). Preparation of Solutol?? HS15 based solid dispersion of curcumin.
Type
Dissertation
URI
https://oak.chosun.ac.kr/handle/2020.oak/8408
http://chosun.dcollection.net/common/orgView/200000239184
Appears in Collections:
General Graduate School > 3. Theses(Master)
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