Pigment or Organism Name:	Bacteriochlorophyll d (Frigaard)
Type:	biological pigment
Medium Type:	in vitro
Description:	In vitro absorbance spectrum of pure BChl d in a methanol-based 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:	Niels-Ulrik Frigaard (personal communication)

Reference:	Frigaard, N. U., K. L. Larsen and R. P. Cox. (1996). Spectrochromatography of photosynthetic pigments as a fingerprinting technique for microbial phototrophs. FEMS Microbiology Ecology 20(2): 69-77.


Comments:	In vitro measurements via high-performance liquid chromatography (HPLC) and continuous monitoring of the column eluate using a diode-array spectrophotometer.  Pigments extracted with an acetone-based solvent mixture and centrifugation.  
	Extracts from Chlorobium vibrioforme (green sulfur bacteria) containing BChl d and carotenoids.
	Molecular image:  Brockmann et al. (1976)


Keywords:	bacteriochlorophyll d, carotenoids, absorbance spectrum, photosynthetic pigment, Chlorobium vibrioforme, green sulfur bacteria

Datafile name:	BChld_invitro_Frigaard_1996_spec.csv