الفهرس 
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Abstract
the present work was planned with the aim of evaluating essential and fixed oils of four egyptian spices tacking into consideration the effect of the isolation methods which in such a manner affected their chemical constituents. besides, to study the antimicrob-ial effects, resulting in adopted method of isolation that produced more effective fragrance raw materials could be demonstrated to have antimicrobial activity similar to well known bacteriostatic and fungistatic agents.