Resource Evaluationof of Levodopa in Broad Bean Flowers of 11 Large Broad Bean Varieties

The content and economic value of levodopa in broad bean flowers in the different varieties of large broad bean were studied to provide reference for the utilization of broad bean flowers. The broad bean flowers extracted from the production of 11 large broad bean varieties were collected to extract the components of levodopa. The content of levodopa in broad bean flowers was determined by liquid chromatography and its economic value was further estimated. The results showed that the content of levodopa in broad bean flowers of Lingxiyicun Variety was the highest (up to 7.57%), and the economic value of levodopa in broad bean flowers was the highest in the variety of Tongcanxian No.8, with the yield reaching 1 893.97 g per 667 m² and the output value reaching 946.99 yuan per 667 m².