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Mansoura University (2012)

Comparative studies on the honey quality in new desert regions with specific reference to Egyptian honey standard

Abd El-Dayem, Mohamed Ramadan Mohamed.

Titre : Comparative studies on the honey quality in new desert regions with specific reference to Egyptian honey standard

Auteur : Abd El-Dayem, Mohamed Ramadan Mohamed.

Etablissement de soutenance : Mansoura University

Grade : Master of Science (MSc) in Agricultural Sciences 2012

Résumé
Objectives : The aim of this study was evaluate physical and chemical properties of honey types in new desert regions in Egypt, Also determine pollen type in honey Methods and Results : The present study was carried out on twenty-four samples of traditional and untraditional honeys were collected from new desert land in six provinces in Egypt. The results of some physical and chemical properties in traditional honeys showed that the moisture content were ranged between 18.75-21.50%, total soluble solids 78.50-81.25%, electrical conductivity(EC) 60-110 ppm, ash content 0.0807-0.2638%, pH 3.74-4.42, total acidity 20.34-33 ml.eq./kg., hydroxy methyl furfural(HMF) 3.49-30.39 mg/kg., diastase activity 8.57-30, sucrose 0.93-8.88%, reducing sugars 67.09-71.67%. Also in untraditional honeys showed that the moisture content were ranged between 17-22.50%, total soluble solids 77.50-83%, electrical conductivity 60-155 ppm, ash content 0.0896-0.3457%, pH 3.75-4.16, total acidity 14.17-57.16 ml.eq./kg., hydroxy methyl furfural 0.30-40.72 mg/kg., diastase activity 8.57-32, sucrose 0.29-5.56%, reducing sugars 65.49-72.30%. Pollen grains found in all honey samples were : citrus, eucalyptus, apricot, date-palm, coriander, broad bean, casuarina, alfalfa, pumpkin, clover and purslane Conclusion : The ash content, hydroxy methyl furfural and diastase number in all samples were accepted, While the moisture content found six honey samples refused, Sucrose content was accepted except only one refused, In addition to total acidity refused one sample by Egyptian standard (2005). Also Pollen grains found in all honey samples were : citrus, eucalyptus, apricot, date-palm, coriander, broad bean, casuarina, alfalfa, pumpkin, clover and purslane.

Présentation étendue (EULC)

Page publiée le 10 février 2019