Quantitative assessment of Critic acid present in various soft drinks available in India.

Abstract

Carbonated and non-carbonated are the two categories of soft/energy drinks are very commonly available. The non -carbonated soft drinks contain citric acid as a major component. In addition, some other acids such as Ascorbic, Malic, Caffeic acid are added in minute quantity as an as anti-oxidants, flavours and preservatives. In the current study the critic content is determined using two parallel methods for the same sample; one is visual titration and another by using pH-metre with combined glass electrode. The overall range for citric acid content is 1.445 to 9.722 g/L by visual titration whereas 1.577 to 1.577 by pH metric titration