تقييم فعالية مستخلصات أوراق نبات الريحان Ocimum basilicum في تثبيط بعض الأحياء المجهرية المرضية

الملخص EN

This study included the qualitative chemical tests of some basic ingredients in Ocimum basilicum leaves.

The results showed that the leaves contain glycosides, alkaloids, tannins, resins, saponins, comarins, flavonoides and phenols.

The inhibition activity of O.

basilicum leaves extracts were studied on some pathogenic microorganisms like Staphylococcus aureus, Salmonella typhi, Escherichia coli, Vibrio cholerae, Aeromonas hydrophila, Serratia marcescens, Klebsiella pneumonia and Candida albicans.

The results showed that the inhibition activity of the extracts of O.

basilicum leaves varied with different extraction solvents and microorganisms.

The organic phase of petroleum ether showed the best effect of inhibition activity on the growth of S.

marcescens and A.

hydrophila which was 21 and 25 mm respectively.

While the aqueous phase of chloroform extract had the best effect on S.

aureus and A.

hydrophila which reached to 19 and 22 mm respectively.