D C LI U CH A TINH D UƯỢ Ệ Ứ Ầ
THÀNH PH N CHÍNH LÀ NHÂN TH MẦ Ơ
ĐINH H NGƯƠ
The clove tree is an evergreen which
grows to a height ranging from 10-20
m, having large oval leaves and
crimson flowers in numerous groups
of terminal clusters. The flower buds
are at first of a pale color and
gradually become green, after which
they develop into a bright red, when
they are ready for collecting. Cloves
are harvested when 1.5-2 cm long,
and consist of a long calyx,
terminating in four spreading sepals,
and four unopened petals which
form a small ball in the centre.
Cloves (Syzygium aromaticum, syn. Eugenia aromaticum or
Eugenia caryophyllata) are the aromatic dried flower buds of a tree
in the family Myrtaceae.
Cloves are native to Indonesia and used as a spice in cuisine all
over the world. The name derives from French clou, a nail, as the
buds vaguely resemble small irregular nails in shape.
Cloves are harvested primarily in Zanzibar, Indonesia and
Madagascar; it is also grown in Pakistan, India, and Sri Lanka.
According to FAO, Indonesia produced almost 80% of the world's
clove output in 2005 followed at a distance by Madagascar and
Tanzania.
ĐINH H NGƯƠ
ĐINH H NGƯƠ
B ph n dùngộ ậ
N hoaụ
Tinh d u đinh h ng (c t t n hoa, cu ng hoa và lá) ầ ươ ấ ừ ụ ố
Δ 90-95% tinh dầu đinh hương được cất từ lá.
Thành ph nầ hóa học
N hoa: tinh dụ ầu 15-25% (DĐVN >15%), eugenol
chi mế 78-95%
Cu ngố hoa chứa 6% tinh dầu (eugenol 83-95%)
Lá ch aứ 1,6-4,5% tinh dầu (eugenol 85-93%)
OH
OCH3