VARIATION IN REFLECTANCE, ABSORBANCE AND TRANSMITTANCE OF Beta vulgaris (BEETROOT) EXTRACT AT ULTRAVIOLET, VISIBLE AND NEAR INFRARED WAVELENGTHS OF SOLAR RADIATION
2020
Amaghionyeodiwe, C.A.
Variation in the behaviour of the optical properties of Beetroot extract was investigated. The solvent extractionmethod was adopted in the extraction process and the optical properties of the extract determined using UV- Vis –NIR absorption spectrum at the range 172nm ≤ wavelength ≤ i1100nm. The ranges of the ultraviolet, visible, andinfrared regions considered include: i172nm ≤ wavelength ≤ i349nm, i350nm ≤ wavelength ≤ i700nm, andi701nm ≤ wavelength ≤ i1100nm respectively. Results show that the absorption coefficient and transmittancesuggests a polynomial regression model. Also, there is a high negative correlation between the absorbance and thetransmittance in the visible region, the findings show that beetroot extract is a suitable sensitizer in the bioelectricityapplication.
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