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دراسة التاثير المثبط لبعض المستخلصات النباتية على بعض الفطريات المرضية == Study of The Inhibitory Effect of Some Medicinal Plants Extracts On Some Pathogenic Fungi
Author name:
شفاء طيار جعفر العساف
Supervisor name:
صالح عيسى محمد الجبوري | عبد الكريم سليمان حسن النعيمي
General topic:
Biology
Specific topic:
Life Science
Degree:
Master
University:
Tikrit University - College Of Education For Girls - Department Of Biology
Language:
Arabic
University location:
Salahaddin
First pages:
24T2837 - p.pdf
Abstract:
اظهرت دراسة التاثير المثبط للمستخلصات المائية والكحولية لاربعة نباتات طبية هي النعناع بنوعيه (Horsemint, Spearmint) والسعد (Nutgrass) والحبة السوداء(Black Cumin) على بعض الفطريات الممرضة المعزولة من حالات مرضية مختلفة، من بين (63) عينة مرضية اخذت للدراسة | Study of inhibitory effect of aqueous and alcoholic extracts of four medicinal plants, spearmint, horsemint, nutgrass and black seed (black cumin), against some pathogenic fungi isolated from different clinical cases, showed that (12) cases from (63) cases were positive and Candida albicans was more frequent (41.67%) followed by Aspergillus fumigates and A. niger (16.67%) for each one.The study at inhibitory effect of aqueous extracts against the isolated fungi, showed that aqueous extract of black seed (30 mg/ml.) was more effective, and inhibited growth of the fungus A. fumigatus (87.5%) followed by the aqueous extract of black seed (25 mg/ml.), nutgrass and Spearmint (30 mg/ml.) for both, which inhibit the fungal growth (81.25%).Aqueous extract of Horsemint (30 mg/ml.) was the best one, which inhibited the growth of A. niger completely (100%); Aqueous extract of black seed (30 mg/ml.) was more effective against the fungus candida albicans, and the inhibition zone diameter was (13 mm.).The study of inhibitory effect of alcoholic extracts against the isolated fungi, showed that alcoholic extracts of black seed (10 mg/ml.), Spearmint (15 mg/ml.) and Horsemint (30 mg/ml.) were The best against A. fumigatus and inhibited its growth completely (100%).Alcoholic extracts of black seed (15 mg/ml.), Spearmint (20 mg/ml.) were more effective against A. niger, and inhibited its growth completely (100 %); Finally, alcoholic extract of black seed (30 mg/ml.) was the best one against C. albicans, with inhibition zone diammeter (19 mm.).Testing of inhibitory effect of some chemical antifungal agents against the isolated fungi showed ketoconazole at concentrations (3.5, 3.0, 2.5) mg/ml. inhibited the growth of A. fumigatus (100, 93.0, 90.0) % respectively. Also ketoconazole at concentrations (3.5, 3.0, 2.5) mg/ml. inhibited the growth of A. niger (100, 95.0, (93.0)% respectively. Nystatin; at concentration 100 I.U/Disc (0.06 mg/Disc) inhibited growth of C. albicans with inhibition zone diammeter (15 mm.).
