Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

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Rypuła K. , Jopek Z. , Śmielewska-Łoś E. , Klimentowski S. , Kucharczak E. 2003. GRAPEFRUIT EXTRACT IN STABILIZATION OF BACTERIAL FLORA IN POULTRY ALIMENTARY TRACT, EJPAU 6(2), #08.
Available Online: http://www.ejpau.media.pl/volume6/issue2/veterinary/abs-08.html

ABSTRACT

Grapefruit biologically active substances are found not only in its pulp, but also in its seed vessel (flavedo) and seeds. These complex substances exert a strong antioxidant and impeding influence on free radicals processes. We observed the stabilization effect of grapefruit extract on the microorganisms isolated from faecal samples of chicken. In this study we used of grapefruit extract dilutions - 0.1 per cent, 0.2 per cent, and 0.4 per cent. The grapefruit extract dilutions were added to water given to chickens. The reduction of the number of bacterial cells was observed as early as 30 min of incubation for Staphylococcus aureus 209 P. and Escherichia coli with the 0.4 per cent grapefruit extract. The reduction of the colonies of Pseudomonas aeruginosa with the 0.1 per cent, 0.2 per cent and 0.4 per cent grapefruit extract was observed after the second hour of incubation. In chicken we observed the decresing tendency in the number of bacterial colonies in al

Key words: grapefruit, microorganisms, bacterial, chicken..

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