VOLATILE CONSTITUENTS IN FRACTIONATED CON CENTRATES OF PEEL OIL FROM HYBRID CITRUS SEEDLINGS, MURCOTT-TANGOR X SETO-UNSHIU

Seven hybrids were produced by the crossbreeding of 'Murcott' tangor w ith 'Seto unshiu' (Citrus unshiu Marc.) as the pollen parent. Peel oil from fruit-rind tissue was prepared by simultaneous distillation and extraction under reduced pressure. Each peel oil was separated into hy drocarbon and oxygenated-compound fractions in a silica gel column and analyzed by a capillary gas chromatograph-mass spectrometer. The comp ositions of the hydrocarbon fraction from the hybrids were closer to t he compositions of 'Murcott' than 'Seto unshiu'. The hybrids had large r hydrocarbon fractions than their parents. The compositions of the ox ygenated-compound fractions were different from those of their parents .