3.1.2. Quantification of red pigments
Quantitative determination of carotenoids was performed using
b-carotene as external standards by means of a six points calibration
curve. The regression equations was A ¼ 14.46C 0.062 with
correlation coefficient R ¼ 0.9995 (n ¼ 6), and the linear range was
0.0056-0.056 g/L.