Lab Session 6. IUG, 2012 TMZ. Analysis of pigments and Oxidation processes in photosynthetic organisms. 1. Photosynthetic Organisms. They contain an operative system that can selectively trap the visible light and use it in production of energy in form of ATP:
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They contain an operative system that can selectively trap the visible light and use it in production of energy in form of ATP:
This operative system includes:
A number of high actively enzymes called oxidases is observed:
Pigments such as chlorophyll and others have the property to dissolve in hot ethanol
Different pigments have different solubility in petroleum ether.
Chlorophyll and chlorophyllide are soluble, while xanthophyl insoluble
Ascorbic acid can reduce chlorophyll that forms a yellow color in a reduced form state.
Hydrochloric acid can bind to Mg2+ of chlorophyll, to produce a Pheophytin that has an olive-brown color.