324 Handbook of herbs and spices
18.6 Main uses in food processing........................................................
Celery is cultivated mainly for fresh herbs and seeds. Several processed products
from celery fresh herb and seeds are popular in the markets of the USA, Europe and
Fig. 18.1 Chemical structures of limonene and b-selinene.
Limonene b-selinene
Table 18.3 Constituents (%) in fruits of Apium graveolens
Constituent Percentage
Terpenes
Limonene 0.22
b-phellandrene 0.38
Alpha-pinene 0.98
b-pinene 1.02
Sesqui Terpenes
b-Elemene 1.30
a-Humulene 1.90
Patchoulene 0.78
b-Selinene 29.23
Aromatics
Pentyl benzene 6.81
Alcohols
Benzyl alcohol 1.02
Carveol 1.74
Eudesmol 3.00
Geraniol 0.46
Limonene glycol 6.19
Linalool 0.81
Menthol 1.90
Terpineol 1.62
Thujol 0.28
Oxide
Caryophyllene oxide 3.77
Aldehydes
Citral 2.88
Methyl heptanal 1.05
Ketones
Carvone 5.93
Dihydrocarvone 3.49
Menthone 0.60
Phenyl ethyl ketone 1.89
Esters
Butyl phthalide 10.56
Geranyl acetate 0.85
Exobornyl acetate 0.28
Source : Chowdhury and Gupta (2000).