Abstract
Quality of final formulation is affected by quality of raw material used in it. The reasons for adulteration in the raw materials are plenty, but to keep a control on its quality is required to get quality product. In the present study one such example was undertaken to see the effect of raw material (Castor oil) on its final formulation (emulsion).Three marketed Castor oil samples namely A, B and C were analyzed for detection of adulteration. Various physicochemical parameters were tested to check purity of oils as per American Society for Testing Materials (ASTM) Standards. Analysis of Emulsion from the oil samples was carried out and comparative analysis was carried out to study effect of different grades of castor oil on formulation aspects of emulsions. The saponification values for sample A and C were quite comparable to the Standard such as177.1 and 178.2 respectively. Acid values for A and C found to be 1.9 and 1.5. The study of formulation aspects showed that sample B does not comply with the ASTM Standards whereas emulsion formulated with oil sample A and C complies with all ASTM Standard. The mean globule size and centrifugation test value for the most stable emulsion were 30.01μm + 0.93 μm, 0.4 + 0.1cm respectively. Sample A was found to be best suited quality raw material amongst all tested sample and its effect on final emulsion was indicated by the formulation aspects as globule size.
