Pigment or Organism Name:	Betanidin
Type:	biological pigment
Medium Type:	in vitro
Description:	Spectrum of Betanin obtained in water at 250C


x-axis label:	wavelength
x-axis units:	nm
y-axis label:	absorbance
y-axis units:	relative
error label:	nil
error units:	nil


Source/Contact:	Dr. Fernando Gandia-Herrero, Dr. Josefa Escribano, and Prof. Francisco Garcia-Carmona, Department of Biochemistry and Molecular Biology, Faculty of Biology, Veterinary Building, Campus Espinardo, University of Murcia, E-30100, Murcia (Spain)

Reference:	Gandia-Herrero, F., F. Garcia-Carmona and J. Escribano (2005). ""A novel method using high-performance liquid chromatography with fluorescence detection for the determination of betaxanthins."" Journal of Chromatography A 1078(1-2): 83-89.


Comments:	Pigment concentration was evaluated through absorbance at 25 _C, by taking a molar extinction coefficient of epsilon = 48,000 M-1 cm-1  at 480 nm for betaxanthins and epsilon = 65,000 and 54,000 M-1 cm-1 at 536 nm for betanin and betanidin, respectively.  Pigment identity was always confirmed by ESI-MS.
	Molecular formula: C10-H15-N3

Keywords:	Betanidin, Beetroot red

Datafile name:	Betanidin_Gandia-Herrero_2009_spec.csv