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IJCT Vol.19(6) [November 2012] >
|Title: ||Experimental and modeling studies on extraction of amyrins from latex of mandar (Calotropis gigantea)|
|Authors: ||Wagh, S J|
Gujar, J G
Gaikar, V G
|Keywords: || -Amyrin|
|Issue Date: ||Nov-2012 |
|Publisher: ||NISCAIR-CSIR, India|
|Abstract: ||The effect of various process parameters,
such as solvent, temperature, speed of agitation, and solid loading, on the
percentage extraction of -amyrin
and -amyrin from the latex of Calotropis gigantea has been studied.
-amyrin and -amyrin is
performed with different solvents such as methanol, ethanol, propanol, and
chloroform. Methanol is found to be the best solvent for both -amyrin and -amyrin.
As the temperature of the extraction increases, easy release of amyrin takes
place, because of destruction of cellular structure of the matrix. The
percentage extraction increases with the increase in speed of agitation.
Assuming the flat geometry of the particles, the process has been modeled and
the results are compared with experimental data at different experimental
conditions. The values of energy of activation are obtained as 40.64 kJ/mol for
alpha amyrin and 26.96 kJ/mol for beta amyrin.
|CC License: || CC Attribution-Noncommercial-No Derivative Works 2.5 India|
|ISSN: ||0975-0991 (Online); 0971-457X (Print)|
|Source:||IJCT Vol.19(6) [November 2012]|