Abstract
Photoacoustic spectroscopy (PAS) has been widely used to analyze biological samples. For example, PAS has been applied to the study of blood which could be related to some diseases. In the present research, the optical absorption spectra of Fisher rat blood, with hepatic damage, were obtained by PAS. Also, the daily intake of turmeric (Curcuma longa), as a protection of liver damage, was evaluated through the characteristic optical absorption peaks of blood, α(585 nm), β(550 nm), and γ(420 nm), where it is possible to associate them with differences in hemoglobin concentrations of the studied samples, by means of the peak ratios γ/β and γ/α, for each analyzed group.
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