Author:
Lourenço Larissa R.,de Lima Sthanley R.,Santos Tácio T. S.,Messias Djalmir N.,Andrade Acácio A.,Pilla Viviane
Abstract
The natural dyes were extracted at different potential hydrogen (pH) values. The spectroscopy and fluorescence quantum yield were determined for annatto and anthocyanin. These solutions were evaluated as a possible pH indicator for adulterated milk.