date:Sep 07, 2012
d to little bura sugar. If washing soda is present, effervescence will occur. About 2gm of sugar is dissolved in water, and red litmus paper in the solution. If washing soda is present, it will turn blue.
Sweetmeats, ice cream and beverages
Colour is extracted from food articles using lukewarm water. A few drops of concentrated hydrochloric acid is added to it. A magenta colour indicates the presence of metanil yellow.
Saccharin
A small quantity of a sweetmeat, ice cream or a beverage is taste