Tylosin abatement in water by photocatalytic process

The photocatalytic degradation of tylosin has been studied using immobilized titanium dioxide as catalyst. T he processes of degradation and reduction of tylosin was examined, and the activity is dominantly dependent on the surface coverage of the catalysts, The Langmuir-Hinshelwood model is satisfactorily obeyed at initial time and in the course of the reaction. These results suggest the feasibility of a photocatalytic system on the elimination of such antibiotic

Bioautographic test of Punica granatum extracts on Fusarium oxysporum.f .sp.albidinis

Fusarium oxysporum f. sp. albidinis, is among the most aggressive soil fungi causing wilt and rot of date palm. Bayoud disease, caused by Fusarium oxysporum f. sp. albidinis (Foa), is a major limiting factor of the date palm cultivation. In order to look for other alternatives to fight against this fungus, in this work we study the antifungal potency of substances extracted from the peel of Punica granatum . The analysis by the method of direct bioautography allows the detection of 17 bioactive substances, Three are indicated in the ethyl acetate extract, two on the level of hexane extract, two in the extract of dichlorométhane, one in the butanol extract and nine on the level of the chloroformic extract. Key Words: sp. Albidinis