https://doi.org/10.1140/epjst/e2008-00504-7
Photoacoustic spectroscopy of Baru – Dipteryx alata Vog
1
Universidade de Brasília, Instituto de Física, Brasília DF, 70910-900, Brazil
2
Fundação Universidade Federal de Rondônia, Departamento de Ciências Exatas e da Natureza, Ji-Paraná RO, 78961-970, Brazil
Photoacoustic spectroscopy (PAS) was used to investigate samples produced from Baru (Dipteryx alata Vog.), a typical fruit from the Brazilian Cerrado, which is considered as a good source of nutrients. The photoacoustic (PA) spectra of samples prepared from Baru seeds present three different absorption bands in the wavelength range 0.3–1.0 μm, named Band-C, Band-S, and Band-L. We found that PAS can be useful for monitoring the strong absorption of visible light by Baru's seeds constituents mainly in the shorter wavelength measured range. This study is important from both agricultural and commercial point of view once it introduces PAS as a potential characterization technique allowing better control of fruit and seed selection, storage and transportation.
© EDP Sciences, Springer-Verlag, 2008
