NIS - libdoc.who.int - World Health Organization

Styli cum stigmatis Zeae maydis
been isolated. There is also fixed oil (approximately 2%, including pantothenic
and linoleic acids); essential oil (approximately 0.2%, containing
carvacrol, α-terpineol, menthol and thymol); saponins (2–3%); tanninlike
polyphenols (approximately 12%, probably chiefly proanthocyanidins);
alkaloids (0.05%), steroids (stigmasterol and sitosterol); vitamin K 1
,
mucilage (relatively rich in potassium salts); minerals (notably approximately
2.7% of potassium); and carotenoids (2, 5, 16, 17, 34–47). The
structures of the characteristic constituents are presented below.
H 3
C
HO
O
O
OH
OH
HO
H 3
C
CH 3
O
H
OH
N
H
pantothenic acid
CO 2
H
O
O
OH
O
Rha =
HO
CH 3
O
CO 2
H
OH Rha
maysin
OH OH
α-L-rhamnopyranosyl
linoleic acid
CH 3
O
H CH 3
H CH 3
O
CH 3
CH 3
CH 3
CH 3
phylloquinone
H 3
C
H 3
C CH CH 3
CH 3 3
H
HO
CH 3
CH 3
CH 3
cryptoxanthin
H 3
C CH 3
Medicinal uses
Uses supported by clinical data
The stigmas and styles of Zea mays are used for the supportive treatment
of chronic nephritis (48).
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