Use of chemical labeling to combat adulteration in the food industry: Part 1 Soft drinks

Abstract

Due to the serious disadvantages arisen from the illegality of food processing
by unlicensed soft drink manufactures, a new method has been developed to avoid
this problem using chemical labeling. The results indicate that D-xylose
monosaccharide is suitable for this specific purpose with optimum concentration
equal to 0.013M with no affect upon refractive index, density and viscosity. This
substance can be detected using Bial's test. Due to the interference between the
colour of Bial's test with coloured soft drinks, this test has been modified which can
be detected through precipitate instead of solution colour. The last modification has
been applied for seven different kinds of soft drinks indicating the successful of
presented idea.