Quantitative Estimation of Vanillin content in various brands of Vanilla Flavored Custard Powder by Conductometry

Abstract

A facile and cost effective conductometric method for quantitative estimation of vanillin content in various locally available brands of vanilla custard powders was performed. Background of the study was conducted taking the base of varied consumption of flavored foods. Vanillin being the choice of flavored desserts in the local region of Telangana, few brands of custard powder were analyzed conductometrically. The milk proteins were removed by precipitation using Saturated copper sulphate and the vanillin content of the various vanilla flavoured custard powder was extracted by liquid-liquid extraction using methanol as solvent.Then the extracted analyte was titrated aganist 0.00105 M NaOH (Standardized).The observed conductance readings on Y-axis and volume of NaOH added on X-axis was taken and plotted a graph and end point determined graphically at 3.5mL,4mL and 3.5mL for product-1, product-2 and product-3.The amount of vanillin content in various locally available brands of vanilla flavoured custard powders was determined. And all the data obtained in this study was within the limits according to FDA. This method is well suited for routine lab analysis and easy to perform when compared to spectroscopic methods.