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sur le développement des zones arides et semi-arides

Titre : ISOLATION AND IDENTIFICATION OF ANTIMICROBIAL AGENTS from EGYPTIAN BEE GLUE (PROPOLIS)

Auteur : HAMMAD, AHMED HOSNY AHMED EL-SAID.

Etablissement de soutenance : Ain Shams University

Grade : Doctor of Philosophy (PhD) in Agricultural Sciences 2022

Résumé partiel
Honey bees are among the most important insects that humans have benefited from for thousands of years in food and medicine. Among the products of honey bee colonies, propolis, which has received a lot of attention in recent years because of its wide range of desirable biological activities, which includes antimicrobial activity, so there was a need for more exploratory studies on its chemical composition, and potential biological activities, in addition to factors that affect the efficiency and quality of the produced propolis, including the identification of appropriate extraction methods aimed at utilizing its biologically active components and producing an effective and high-quality extract, and for the development of appropriate production methods that must be applied to produce the largest quantity of high-quality propolis. Laboratory experiments were conducted for the current study in the desert research center (D.R.C) laboratories, while field experiments were conducted to evaluate the propolis traps in three apiaries, two of them were in Dakhla district, new valley governorate (El-Hindaw and El-Mouhoub villages) and third location was in Qalyubia governorate (Qalyub center) during the experimental period extended from July, 2017 to June, 2018. The current work mainly aims to evaluate three bee propolis-collection traps in addition the traditional method (hand collection) in terms of the quantity and quality of the produced propolis, in addition to evaluating the effect of three different extraction methods (maceration, microwave-assisted, ultrasonic-assisted) on The yield of the extract of the used propolis samples, contents of total phenolic and flavonoid compounds, as well as the antimicrobial properties of extracts on strains bacteria tested.

Présentation étendue (EULC)