MadSci Network: Botany
Query:

Re: What colors could I see in the chromatogram besides green turquoise and ora

Date: Wed Oct 11 15:48:37 2006
Posted By: David Hershey, Faculty, Botany, NA
Area of science: Botany
ID: 1160522450.Bt
Message:

Chlorophyll c and fucoxanthin are not found in spinach. Fucoxanthin is a brown
pigment found in brown algae and diatoms. Chlorophyll c is only found in the
Chromista and dinoflagellates. 

Lutein is a carotenoid, specifically a xanthophyll. It is present in spinach and
is yellow to orange-red. The USDA National Nutrient Database for Standard
Reference says there are 12,198 mcg of lutein + zeaxanthin per 100 grams of raw
spinach.

Sometimes there are additional bands in paper chromatography, such as an
olive-green band of pheophytin (see last reference).

This is a standard lab exercise so try a google.com search for: paper
chromatography spinach.

References


Photosynthetic Pigments


Lutein


USDA National Nutrient Database for Standard Reference


Re: How do you identify pigments as they show up on paper chromatography?


Current Queue | Current Queue for Botany | Botany archives

Try the links in the MadSci Library for more information on Botany.



MadSci Home | Information | Search | Random Knowledge Generator | MadSci Archives | Mad Library | MAD Labs | MAD FAQs | Ask a ? | Join Us! | Help Support MadSci


MadSci Network, webadmin@madsci.org
© 1995-2006. All rights reserved.