Allam, Shimaa W.  <br/><br/>
Screening for antibacterial activites of alga Ulva sp. extracts  [electronic resource]. 
 دراسة لنشاط مستخلصات طحلب Ulva كمضاد للبكتيريا. 

 - p.587-597. 
<br/><br/>Includes reference 
<br/><br/> In vitro screening of organic solvent (Methanol, ethyl acetate, dichloromelhane, butanol and water) extracts of Ulva sp. was carried out against pathogenic bacteria. Butanol extract showed highest activity against both Gram positive and Gram negative bacteria such as Bacillus subtilis strain-AN5 (+++), Bacillus cereus strain-AN19 (++), Streptococcus sp.(++) and staphylococcus epidermis (++), Escherichia coli DH5a (+++), Escherichia coli 107 (++). Both water and ethyl acetate extracts showed moderate activity against tested bacteria. While dichloromethane extract inhibited the growth of Escherichia coli 107 (+) and Bacillus subtillus strain-AN5 (+). The result of qualitative detection of chemical constituency showed presence of alkaloids, tannin, saponin, steroid, terpenoid, flavonoid and cardic glycoside and absence of phlobatannin. 
<br/><br/><br/>Summary in arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algae--Research.<br/>Marine algae.<br/>Ulva.<br/>Antibacterial agents.