Flavonoid Composition of Fruit Tissues of Citrus Species

An HPLC analysis was performed on the concentrations of flavonoids in 42 species and cultivars of the Citrus genus and those of two Fortunella and one Poncirus species according to the classification system established by Tanaka, showing that such neohesperidosyl flavonoidal species had large factor loading values in the first principal component for each tissue.