Estimation of capsaicin through scanning densitometry and evaluation of different varieties of capsicum in India
| Autor: | Arunava Gantait, Pulok K. Mukherjee, Tapu Barman, P. Venkatesh, Pratim Banerji, Amal K. Maji |
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| Rok vydání: | 2011 |
| Předmět: |
Detection limit
Chromatography biology Correlation coefficient Calibration curve Organic Chemistry Analytical chemistry Ethyl acetate India Reproducibility of Results Plant Science biology.organism_classification Biochemistry Analytical Chemistry Absorbance chemistry.chemical_compound chemistry Capsaicin Limit of Detection Scanning densitometry Chromatography Thin Layer Capsicum Solanaceae Densitometry |
| Zdroj: | Natural product research. 26(3) |
| ISSN: | 1478-6427 |
| Popis: | Capsicum annuum L. (family: Solanaceae) possesses therapeutic benefits for the treatment of rheumatism, neuropathy, psoriasis, flatulence and so on. In this study fruits of four different varieties of C. annuum from four different geographical regions in India were evaluated based on their total content of capsaicin. Ethanol extracts of the fruits were used. HPTLC plates were developed in a mobile phase containing benzene, ethyl acetate and methanol (75:20:5). Densitometric scanning was performed at a wavelength of 283 nm in the absorbance mode. The calibration curve was described by the equation Y=393.587+3.836*X with a correlation coefficient (r) of 0.99890. The content of capsaicin in Nagaland, Manipur, West Bengal and Shimla varieties was found to be 3.71%, 1.78%, 0.54% and 0.06%, respectively. The developed densitometric method was found to be specific, accurate and precise. A recovery study and precision showed low levels of %RSD values. The linearity range of the curve for capsaicin was found to be 300-900 ng per spot. The limit of detection and the limit of quantification values were determined to be 31 and 94 ng, respectively, proving the sensitivity of the method. Thus the method can be used to control the total content of capsaicin on an industrial scale. |
| Databáze: | OpenAIRE |
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