Pigment or Organism Name: Lutein (in vitro, LaFountain) Type: biological pigment Medium Type: in vitro Description: In vitro absorbance spectrum of Lutein from green algae dissolved in solvent mixture x-axis label: wavelength x-axis units: nm y-axis label: absorbance y-axis units: relative error label: nil error units: nil Source/Contact: Prof. Harry Frank, Amy LaFountain (lab tech), Univ of Connecticut Reference: Personal communication Comments: In vitro absorbance spectra obtained during HPLC separation using a Waters 996 PDA detector. Solvent composed of 99% Solvent A (87:10:3 acetonitrile/methanol/water) and 1% Solvent B (ethyl acetate). Pigment sample obtained obtained from green algal extracts. Peaks occur at about 447 and 475 nm. Molecular formula: C40-H56-O2 Keywords: Lutein, Zeaxanthin, antioxidant Datafile name: Lutein_LaFountain_2009_spec.csv