Investigation of Optical and Flow Properties of Avocados by Spectroscopy and Rheology Methods |
| O. Yalçına, M. Öztürkb, Ö. Görgülüera
aDepartment of Physics, Niğde Ömer Halisdemir University, 51240 Niğde, Turkey bProgram of Opticianry, Niğde Ömer Halisdemir University, 51200 Niğde, Turkey |
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| Structural, optical and rheological properties of pulp and seed extracts of three different avocado cultivars were analyzed using spectroscopy and rheology techniques at room temperature. Ultraviolet spectra and Fourier transform infrared spectroscopy signals for the pulp and avocado seed extracts were recorded in the wavelength range 190-600 nm and the wave number range 4200-400 cm-1, respectively. The flow behaviours for all avocado pulp and seed samples were also analysed in the shear rate range of 10-2-102 s-1 and in the frequency range of 10-1-103 rad/s, respectively. The ultraviolet spectra of all the samples were observed as two peaks around 210 and 290 nm. The optical energy band gaps for all samples were found to be consistent with Planck's radiation approach. |
DOI:10.12693/APhysPolA.141.481 topics: spectroscopy, avocado, rheology, viscosity |