Saturday, March 15, 2008

defiNiTiOn Of Terms...

Dye - colored substance that has an affinity to the substrate to which it is being applied.

Substrate - the material or substance on which an enzyme acts.

Aqueous solution - is a solution in which the solvent is water.

Pigment - is a material that changes the color of light it reflects as the result of selective color absorption.

Carotenoids - organic pigments that are naturally occuring in chromoplasts of plants and some other photosynthetic organisms like algae, some types of fungi and bacteria.

Chlorophyll - is a green pigment found in most plants

Mordant - is a substance used to set dyes on fabrics forming an insoluble compound with the dye.

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