Factors Affecting the Destruction of Carotene in Alfalfa

Abstract
The effect of light, enzymes, and oxygen on the loss of carotene in drying alfalfa was detd. Oxygen was found to be necessary for the destruction of carotene in alfalfa while other factors acted as accelerators. The carotene in leaves was more stable than that in stems, probably because of a greater concn. of naturally occurring antioxidants in leaves. In purified solns. chlorophyll acted as a light-sensitizing agent for carotene destruction. Carotene in leaf extracts was more stable than in stem extracts.