Browsing by Author "Al-Easa H.S."

Chemical survey of some plants Growing in Qatar

Rizk, A.M.; Heiba, H.I.; Al-Easa, H.S. (1989 , Article)

Fifty one plants growing in Qatar, belonging to thirty families, were surveyed for alkaloids, anthraquinones, coumarins, flavonoids, tannins and saponins. The medicinal uses of these plants arereported.

Constituents of Plants Growing in Qatar, Part XXX: A New Iridoid from Cistanche Phelypaea (L) COUT

Deyama, T.; Yahikozawa, K.; Al-Easa, H.S.; Rizk, A.M. (1995 , Article)

New iridoid named phelypaeside (1) was isolated from the dried aerial parts of Cistanche phelypae (Orobanchaceae) growing in Qatar

Constituents of Plants Growing in Qatar, Part XXXI: Lipid constituents of seventeen range plants growing in Qatar

Al-Easa, H.S.; Rizk, A.M.; Heiba, H.I. (2002 , Article)

A preliminary study on the nutritive values of 17 Qatari range plants

Phospholipid fatty acid composition of nine marine sponges from Qatar

Njinkoue, J.M.; Barnathan, G.; Al Muftah, A.R.; Al Easa, H.; Vacelet, J.; ... more authors ... less authors ( IFREMER , 1998 , Conference)

Phospholipid fatty acid composition was studied in sponge from Qatar including eight Demospongia and one Calcarea. More than 60 fatty acids were identified in each species as methyl esters and N-acyl pyrrolidides by gas ...