. This would also
provide idea about improvements with ultrasound extraction
other than temperature induced effects of ultrasound.
Extract
samples were taken at every 30 minutes and the optical density
was determined with the help of UV-VIS spectrometer. At the
end of 3 hours, the yield and extraction efficiency of each
sample was determined by gravimetric method. The extract was
tightly closed and stored at low temperature for future reference.