The content of bitter component (naringin ) from the skin, juice and seed of
musk lime, mexican lime, rough lime, pummelo and mandarin orange was
determined by the high-performance liquid chromatographic (HPLC)
method. Naringin could only be found in pummelo and rough lime but could
not be detected in musk lime, mexican lime and mandarin orange. The skin of
pummelo contained a higher amount of naringin (3910 gg/g fresh weight)
than the juice ( 220"O ltg/g fresh weight) whereas the amounts of naringin
obtained from the skin,juice and seed of rough lime were 517.2 gg/g, 98"4 ttg/g
and 29'2 ~lg/g fresh weight, respectively. Sensm3" analysis further confirmed
that the juices extracted from pummelo and rough lime were bitter while those
extracted from musk lime, mexican lime and mandarin orange were not bitter.
The correlation coefficient ( r ) for bitterness using both techniques (sensory
and HPLC) was 0.97.