Flavones and Flavone Derivatives as Antioxidants

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Abstract
Quercetin, quercitrin, rutin, the chalcone of hesperi-din, but not hesperidin, were found to be antioxygenic in concs, as low as 3 mg. % for milk fat and lard. They were also found to act as antioxidants for the oil in plasma emulsion-milk, but their use is restricted to low cones., due to the flavor imparted to flavor-sensitive milk. Quercetin was found to be more effective than a-tocopherol, lecithin, or synergistic combinations of these latter in prolonged room temp. storage of milk fat. The authors believe the grouping,[long dash]C[long dash][image]of the pyrone or chalcone nucleus is responsible for the anti-oxidant activity. Since these compounds are associated with or form an integral part of Vitamin P, their addition to foods should not be objectionable.

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