National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The objective of this study was to evaluate the thermo and photosensitivity of the biomolecules contained in Curcuma longa extracts. The effects of temperature and light on the stability of curcumin were established in this work. The results suggest that temperature and light induce in vitro structural change of the biomolecules available in the extracts. Analysis of the absorption spectra showed that aqueous extracts and hydro-alcoholic extracts do not absorb in the same wavelength. That is, 460 nm and 620 nm for aqueous extracts and 580 nm and 670 nm for hydro-ethanolic extracts. The kinetics of the thermodegradation of extracts studied between 40°C and 95°C for a duration between 0 and 60 minutes, shows the variations of absorbances as a function of temperature. Also, after 60 min of light irradiation, a decrease in the absorbances of the extracts was observed. Hydro-ethanolic extracts have been shown to be insensitive to heat and the effect of light irradiation.
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