Propolis is a complex resinous material with many pharmacological and biological properties attributed to the presence of many volatile and non-volatile phytochemical compounds which have not been analysed in details for Malaysian propolis. In this study, we determined and compared volatile phytochemical compounds in water and ethanol extracts of Malaysian propolis (Trigona itama) using gas chr...

Propolis is a bee-collected natural product and has been proven to have various bioactivities. This study tested the effects of Chinese propolis and Brazilian propolis on streptozotocin-induced type 1 diabetes mellitus in Sprague-Dawley rats. The results showed that Chinese propolis and Brazilian propolis significantly inhibited body weight loss and blood glucose increase in diabetic rats. In a...

INTRODUCTION Propolis is a chemically complex resinous substance collected by honeybees (Apis mellifera) from tree buds, comprising plant exudates, secreted substances from bee metabolism, pollen and waxes. Its chemical composition depends strongly on the plant sources available around the beehive, which have a direct impact in the quality and bioactivity of the propolis. Being as Portugal is a...

Propolis, a resinous substance collected by Apis mellifera bees from various plant sources is transformed in the presence of bee enzymes. Short- and long-term effects of diet supplementation with ethanol extract of Iranian propolis (EEIP) was investigated on growth and immunity in juvenile rainbow trout. The fish (mean body weight 30 ± 3.2 g) were fed a commercial diet supplemented with 0 (cont...

Propolis is a resinous substance collected by bees (Apis mellifera) from various tree buds which they then use to coat hive parts and to seal cracks and crevices in the hive. Propolis, a known ancient folk medicine, has been extensively used in diet to improve health and to prevent disease. In the present study, we have evaluated the effects of ethanolic extracts of Brazilian propolis group l2 ...

The composition, bacteriostatic and ROO*-scavenging potential activities of fifteen propolis samples from various botanic and geographic origins were determined to obtain objective information related to propolis quality. Variance analysis showed significant differences (p < or = 0.05) in the contents of polyphenols, flavonoids and active components between fresh and aged propolis. The state of...

Three propolis samples from Austria, Germany and France were investigated by GC/MS, where eleven compounds were being new for propolis. The samples showed some similarities in their qualitative composition. Phenylethyl-trans-caffeate, benzyl ferulate and galangin were predominant in German propolis. Benzyl caffeate was predominant in French sample. Pinocembrin was predominant in French and Aust...

Propolis is a mixture of wax, sugars and plant exudates used by bees as a general purpose glue and sealant within hives. There is a long history of medicinal usage of propolis although propolis can cause allergic reactions in susceptible individuals [1, 2]. Various components of propolis have been assessed for their antimicrobial properties [3—7], Components identified as having antimicrobial p...