J. Phys. IV France
Volume 125, June 2005
Page(s) 51 - 53

J. Phys. IV France 125 (2005) 51-53

DOI: 10.1051/jp4:2005125013

Carotenoids and flavonoids identification in Brazilian tropical fruits and vegetables using photoacoustic technique

R.J.S. Lima, A.S. Vasconcelos and J.F. Suassuna

Department of Physics, Federal University of Campina Grande, Paraiba, Brazil

In this work we present results of the application of PAS technique in the UV-Vis region in a variety of organic materials in natural form such as plant leaves, fruits and vegetables. The observed PAS spectra were associated to the presence of several carotenoids and flavonoids molecules in leaves, fruits and vegetables. Our results confirm PAS as a rapid direct and efficient analytical method in material science, particularly in the very promising field of photochemistry and photobiology.

© EDP Sciences 2005