4.1.2 Determining Optimum Wavelength by UV/Vis
The UV-Vis absorption of lycopene extracted from the tri-mixture and a standard lycopene (Sigma New Zealand) was measured in the range 250 to 600 nm. The UV-Vis spectra of the lycopene standard had the same maximum absorption peaks at 455, 480, and 513 nm reported by Seifi et al., (2013). Unfortunatelly, this spectra could not be printed so published data is given (Figure 4-7).