期刊
FOOD CHEMISTRY
卷 170, 期 -, 页码 321-326出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2014.08.066
关键词
Curcumin; System suitability; Stress degradation study; Stability indicating HPLC-UV method
资金
- Universiti Sains Malaysia
- PRGS Grant [1001/PFARMASI/844074]
A stability-indicating HPLC-UV method for the determination of curcumin in Curcuma longa extract and emulsion was developed. The system suitability parameters, theoretical plates (N), tailing factor (T), capacity factor (K'), height equivalent of a theoretical plate (H) and resolution (Rs) were calculated. Stress degradation studies (acid, base, oxidation, heat and UV light) of curcumin were performed in emulsion. It was found that N > 6500, T < 1.1, K' was 2.68-3.75, HETP about 37 and Rs was 1.8. The method was linear from 2 to 200 mu g/mL with a correlation coefficient of 0.9998. The intra-day precision and accuracy for curcumin were <= 0.87% and <= 2.0%, while the inter-day precision and accuracy values were <= 2.1% and <=-1.92. Curcumin degraded in emulsion under acid, alkali and UV light. In conclusion, the stability-indicating method could be employed to determine curcumin in bulk and emulsions. (C) 2014 Elsevier Ltd. All rights reserved.
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