TY  - JOUR
T1  - Antioxidant Activity and Chemical Constituents of <I>Pupalia lappacea </I>(L.) Juss
AU - , A. Aladedunye Felix AU - , A. Okorie Domingo 
JO  - Research Journal of Biological Sciences
VL  - 3
IS  - 7
SP  - 783
EP  - 785
PY  - 2008
DA  - 2001/08/19
SN  - 1815-8846
DO  - rjbsci.2008.783.785
UR  - https://makhillpublications.co/view-article.php?doi=rjbsci.2008.783.785
KW  - Pupalia lappacea (L.) Juss. (Amaranthaceae)
KW  -ecdysteroid
KW  -20-hydroxyecdysone
KW  -antioxidant activity
KW  -saropeptate
AB  - Phytochemical  analysis  of  foliage of <I>  Pupalia lappacea</I> (L.)  Juss  (<I>Amaranthaceae</I>) afforded 8 compounds, namely; 1-docosanol, stearic acid, stigmasterol,  -sitosterol, N-benzoyl-L-phenylalaninol acetate,  -sitosterol-3-O- -D-glucopyranoside, stigmasterol-3-O- -D-glucopyranoside and 20-hydroxyecdysone. The ecdysteroid, 20-hydroxyecdysone, constitutes nearly 0.3% of the dry weight and 13% of the dichloromethane extracts of the plant, making <I>Pupalia lappacea</I> a probable commercial source for this important ecdysteroid. Both the hexane and dichloromethane extracts showed significant antioxidant activity with the dichloromethane exhibiting an IC<SUB>50</SUB> comparable to that of BHT, a synthetic antioxidant. All the isolated compounds are reported for the first time in the genus.
ER  -