2018 ASHS Annual Conference

Citron from Jindo is a tree grafted with trifoliate orange grafted fruit that has good environmental adaptability against low or high temperatures. Due to its hard pulp and sour taste, it is more beneficial to use as a fragrance source than an edible resource. In this study, citron was harvested by each harvest time in October, November and December, and researched productivity and quality of oil to use citron produced in Jindo as a fragrance resource. The crops of citron by the harvest time were 3,288㎏ in October, 3,587㎏ in November and 4,200㎏ in December per 10a: indicating that the later the harvest time, the more the crop. When oil productivity of citron was researched based on 1kg of the citron peel extracted through steam distillation, the October yield was 24 (㎖/㎏), the November yield was 22.2 (㎖/㎏) and the December yield was 18.0 (㎖/㎏). With regard to the intensity of fragrance of natural oil, the crop harvest in October had strongest fragrance with 3,203 (A.U./1g) and the intensity fragrance decreased as the later harvest times. It shows that the best time for harvesting citron for oil production is October.