LIMONOIDS IN SEEDS OF CITRUS-HANAJU

The amounts of limonoids and their glucoside derivatives present in seeds of Citrus hanaju hort. ex. Shirai were determined. The seeds contained deacetylnomilin, limonin, nomilin and obacunone in order of decreasing concentration. They also contained the 17-beta-D-glucopyranosides of deacetylnomilin, deacetylnomilinic acid, obacunone, ichangin, isolimonic acid, nomilinic acid and nomilin. Although C. hanaju has been classified in the group of cultivars related to C. ichangensis, the seeds did not possess ichangensin or its glucoside derivative, which are unique to C. ichangensis and its hybrids.