More than 300 bio-active compounds have been identified from bee propolis in various regions of the world. The objective of this study was to examine whether the ethanol extracts of Chinese and Brazilian propolis may exert anticancer activities in four human colon carcinoma cell lines, namely CaCo2, HCT116, HT29 and SW480. Propolis samples were extracted with ethanol, and the crude extracts wer...

Streptococcus mutans triggers dental caries establishment by two major factors: synthesis of organic acids, which demineralize dental enamel, and synthesis of glucans, which mediate the attachment of bacteria to the tooth surface. Propolis is a natural product that may prevent dental caries. Baccharis dracunculifolia DC (Asteraceae), a native plant from Brazil, is the most important botanical o...

removing the bacteria, including enterococcus faecalis, from the root canal is one of the important aims in endodontic treatment.we aimed to compare the antibacterial activity of chlorhexidine with two natural drugs. the antibacterial activities of three different propolis extracts (alcohol concentrations: 0, 15, 40%) and aloe vera gel on e. faecalis were compared using three methods: disk diff...

Propolis is a gum-like product which are gathered by bees from various plants, and which vary in color from light yellow to dark brown. It is known that the propolis have antibacterial, anticarcinogenic, and immunostimulating biological activities. Parts of these activities are probable due to the antioxidative effect of some compounds which occur in relatively higher concentrations in propolis...

Apicultural products l ike propolis and pollen have gained increased attention for their therapeutic properties. The aim of this study was to assess antibacterial properties of Egyptian propolis and pollen extracts or their mixtures which were extracted by different ethanol/water concentrations against 6 food borne pathogenic, as well as 4 lac tic acid bacterial (LAB) strains. Antibacterial ac ...

The honey bee disease American foulbrood (AFB) is a serious problem since its causative agent (Paenibacillus larvae) has become increasingly resistant to conventional antibiotics. The objective of this study was to investigate the in vitro activity of propolis collected from various states of Brazil against P. larvae. Propolis is derived from plant resins collected by honey bees (Apis mellifera...

The objective of this study was the chemical analysis of four selected samples of African propolis (Congo and Cameroon) and their biological evaluation. Twenty-one secondary metabolites belonging to four different chemical groups were isolated from the 70% ethanolic extracts of propolis and their structures were elucidated on the basis of spectral evidence. Three triterpenes and two diprenyl-fl...

BACKGROUND Propolis is the bee product noted for multiple biological effects, and therefore it is widely used for the prevention and treatment of a variety of diseases. The active substances of propolis are easily soluble in ethanol. However ethanolic extracts cannot be used in treatment of certain diseases encountered in ophthalmology, pediatrics, etc. Unfortunately, the main biologically acti...

The antimicrobial activities of different concentrations of pollen and propolis extracts were determined against nine food-borne pathogens (Streptococcus salivarius RSHE 605, Listeria monocytogenes NCTC 5348, Staphylococcus aureus ATCC 25923, Salmonella enteritidis ATCC 13076, Staphylococcus pneumoniae ATCC 10015, Escherichia coli ATCC 25922, Klebsiella pneumoniae NCTC 5049, Pseudomonas aerugin...

C. L. Herrera, M. Alvear, L. Barrientos, G. Montenegro, and L. A. Salazar. 2010. The antifungal effect of six commercial extracts of Chilean propolis on Candida spp. Cien. Inv. Agr. 37(1): 75 84. Propolis has been used in traditional medicine for many centuries because of its beneficial health properties, including its antimicrobial capacity. Prosthesis stomatitis affects a significant percenta...