Propolis


Also found in: Dictionary, Medical, Acronyms, Wikipedia.

Propolis

 

(also bee glue), a sticky resinous substance produced by honeybees.

The bees apply propolis to the walls of the hive and seal cracks with it. Propolis has a bitter taste and a syrupy consistency, and it is yellow or brown in color. When stored, it thickens and hardens into a brittle (rosinous) dark-brown mass. Propolis melts at 80°–104°C and crumbles at 15°C. It dissolves in hot methyl alcohol, petroleum ether, liquid ammonia, acetic acid, and a 70-percent solution of ethyl alcohol. Its chemical composition is 50–55 percent plant resins, 8–10 percent essential oils, and about 30 percent wax. About 100–150 g of propolis is collected from each hive in a season. It is stored in the form of balls of 150–200 g in parchment paper. Propolis has an antimicrobial effect and is used in medicine and veterinary practice. Ointments are made from it to treat wounds, eczema and certain other conditions. Propolis is an ingredient in corn plasters.

REFERENCE

Mladenov, S. Med i medolechenie [2nd ed.]. Sofia, 1971. (Translated from Bulgarian.)
References in periodicals archive ?
Propolis, which exerts antibacterial, anti-inflammatory and antioxidant effects, has been used for many years in the treatment of burns and wounds (4).
(14) in which rats were experimentally induced with edema in the paw, pleurisy and arthritis, the use of EPE and water-soluble derivative (WSD) propolis extract showed an anti-inflammatory effect similar to steroids.
Induction of phytoalexins by propolis is still little known.
phaseoli) in bean plants, in both treated and untreated trifolia, indicating the local and systemic effect of propolis on plants.
The antioxidant potential of the ethanolic extract of propolis was determined by fotocolorimetrico in vitro method held through the kidnapping of free radicals, which was using the DPPH (1.1-diphenyl-2-picril-hidrazila).
Propolis extracts produced by the Africanized bee (Apis mellifera L.), using various wild plant exudates (wild propolis) and Baccharis dracunculifolia (green rosemary propolis), were obtained from the partnership with the Industry and Apiary Centro Oeste Ltda/ Natucentro, in Bambui, state Minas Gerais, Brazil.
A previous study has proved that propolis treatment can decrease insulin resistance in obese diabetic rats [27].
Keywords: Antibiotic resistance, Antimicrobial, Methicillin, Propolis, Staphylococcus spp.
Along with the rising interest in natural products, propolis has been a promising source for discovering new drugs (10).
The sample solution was prepared by mixing 1.33 g propolis with 100 mL absolute ethanol.