Abstract

Resveratrol, extracted from plants has both anti-bacterial and anti-fungal activity. A hydrotrope is a compound that solubilizes hydrophobic compounds in aqueous solutions by means other than micellar solubilization. Hydrotropes are compounds that improve the solubility of surfactants in water, particularly those structured to contain high levels of builders or alkalinity. Sodium xylene sulphonate, Toluene sulfonic acid, Na salt and sodium cumene sulphonate are used as hydrotrope since it has the ability to solubilize resveratrol in water. An efficient ultrasound-assisted extraction is used to process for resveratrol along with hydrotrope of known concentration. Since the resveratrol is highly sensitive to light the research is done in a dark environment. The solubility of the resveratrol in the solution was determined by the UV-visible spectrometer. The study was made with various concentration of resveratrol in defined (50 ml) of a hydrotrope. The analysis was done by varying concentration and temperature of the water bath. The sample is projected to HPLC to infer the purity or the concentration of the resveratrol in the solution. From the results, it is clear that the solubility increases with increase in the temperature. Particularly, sodium xylene sulphonate and sodium cumene sulphonate are identified as best hydrotropes for the extraction of resveratrol.

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