Research Article

Validated Spectrophotometric Methods for Simultaneous Determination of Food Colorants and Sweeteners

Table 3

Assay results for the determination of IND, BB, ACE and ASP in a commercial chewing-gum sample by proposed methods.

MethodsAnalyte Selected Wavelength (nm)Assay results (mgKg−1) (mean ± SD)* ( )**

ZCDSIND 1D34814.60 ± 0.82 (0.26; 1.26)
BB 1D4204.66 ± 0.89 (0.84; 1.02)
ACE-K 1D242530.81 ± 0.79 (1.42; 1.92)
ASP 3D227458.66 ± 0.98 (1.76; 1.81)
RDS
IND 1D35614.73 ± 0.73
BB 1D4194.18 ± 0.90
ACE-K 1D248531.43 ± 0.57
ASP 3D225457.36 ± 1.32

Results obtained are the average of five experiments for each method; SD: Standard deviation.
**The corresponding theoretical value for and at : 0.05 ( : 2.31; : 6.39).