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    Constituents of plants growing in Qatar - Part XIX. Flavonoids of Glossonema edule N. E. Br. 

    Rizk, A. M.; Hammouda, F. M.; Ismail, S. I.; Hassan, N. M.; El-Missiry, M. M.; Ahmad, F. A.... more authors ... less authors ( Springer Nature , 1990 , Article)
    The study of the flavonoids of the unripe fruits of Glossonema edule, resulted in the isolation and identification of apigenin 6,8-di-C-glucoside (violanthin) and luteolin 7-O-glucoside. © 1990 Kluwer Academic Publishers.
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    Constituents of plants growing in Qatar XX. Phytochemical investigation of anastatica hierochuntica: NOTE 

    Rizk, A. M.; Hammouda, F. M.; Ismail, S. I.; Hassan, N. M.; Ahmed, F. A. ( Taylor & Francis , 1993 , Article)
    A study of the lipid fraction of Anastatica hierochuntica (Cruciferae) resulted in the isolation of hydrocarbon (mainly C25H52, C29H60 AND C31H64) AND sterol fractions (P-sitosterol, campesterol, stigmasterol AND cholesterol). ...
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    Constituents of plants growing in Qatar XVII anti-inflammatory and cytotoxic activities of extracts of thirty indigenous species 

    Rizk, A. M.; Heiba, H. I. ( Taylor & Francis , 1990 , Article)
    Thirty plants, indigenous to Qatar, were extracted separately with hexane, chloroform and ethanol. The dried extracts were examined for potential anti-inflammatory activities both in vitro by their ability to inhibit ...
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    Major sterol composition of some algae from Qatar 

    Al Easa, Hala S.; Kornprobst, Jean-Michel; Rizk, A.M. ( Elsevier Science Ltd. , 1995 , Article)
    Thirteen macroscopic algae belonging to the three main divisions Chlorophyceae, Rhodophyceae and Phaeophyceae from the coast of Qatar (Arabian Gulf) were investigated for their sterol composition by using GC-MS coupling ...
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    Constituents Of Green Beans Phaseolus Vulgaris (Lipids And Flavonoids) 

    Rizk, A.M.; Ismail, S.I.; Azzam, S.A.; Wood, G. ( Qatar University , 1992 , Article)
    Chemical study of the lipid fraction resulted in the isolation and identification of a hydrocarbon fraction (n-Czg -0-033); an aliphatic alcohol fraction (C^, Czp, €30) and a sterol fraction (stigmasterol and sitosterol). ...
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    Constituents of plants growing in Qatar: part xxviii. Constituents Of cistanche phelypaea 

    Deyama, T.; Yahikozawa, K.; Al-Easa, H.S.; Rizk, A.M. ( Qatar University , 1995 , Article)
    Ten compounds were isolated from the methanolic extract of the aerial parts of Cistanche phelypaea (Orobanchaceae) and identified as echinacoside (1), tubuloside A (2), tubuloside E (3), acteoside (4), 2'-acetylacteoside ...
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    The amino acid composition of some Common marine algae from Qatar (Arabian Gulf) 

    Heiba, H. I. [حلمي اسماعيل هيبة]; Al-Nagdy, S. A.; Rizk, A. M.; Durgham, M. M. ( Qatar University , 1993 , Article)
    The most dominant twenty algal species representing the main three groups of benthic macroalgae, Chlorophyceae, Phaeophyceae and Rhodophyceae were collected from the coastal zones of the Qatar peninsula. The algae were ...
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    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

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    Author
    • Rizk, A. M. (8)
    • Ismail, S. I. (3) Al-Easa H.S. (2) Deyama, T. (2) ... View More
    Type
      Article (8)
    Subject
      Chlorophyceae (2) Cistanche phelypaea (2) Orobanchaceae (2) 2'-Acetylacteoside (1) ... View More
    Publication Date
      1995 (3) 1990 (2) 1993 (2) 1992 (1)
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