Browsing by Author "Heiba, H. I. [حلمي اسماعيل هيبة]"

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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 ...

    • Aminoacid derivative? With psychotogenic activity by 

      Heiba, H. I. [حلمي اسماعيل هيبة]; Abdel-Rahman, M. O.; Al-Nagdy, S. A.; Zahra, M. ( Qatar University , 1989 , Article)
      As a part of an extensive programme concerned with the syntheses and investigation of a group of benzilyl-aminoacid and diphenylacetylaminoacid, piperidine esters possessing psychotogenic properties, attention has been ...

    • Constituents Of Cymbopogon Species 

      Heiba, H. I. [حلمي اسماعيل هيبة]; Rizk, A. M. ( Qatar University , 1986 , Article)
      A comprehensive review of the Cymbopogon species including the essential oils and their constituents is given. An account of the other components viz. non volatile terpenoids and phenolic compounds is also given. The ...

    • Phytochemical Studies On The Marine Algae Of Qatar, Arabian Gulf 

      Heiba, H. I. [حلمي اسماعيل هيبة] ( Qatar University , 1990 , Article)
      The most dominant twenty three algal species representing the main three groups of benthic macroalgae, Chlorophyceae, Phaeophyceae and Rhodophyceae were collected from the coastal zones of the Qatar peninsula. These algae ...