Abstract
β-Carotene has been reported to be lower than vitamin A in the growth promoting potency when used without adding adequate amounts of α-tocopherol. The investigation was undertaken to study the destruction of carotene in the synthetic gastric juice by the effects of simultaneous presence of lipoxidase in foods and the strong acidity of the gastric juice. It showed that carotene was lost more than expected, in some cases nearly one half of the potency by both lipoxidase and the gasric juice.
