Propolis

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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

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.)
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
She said: "Bee glue is also a natural remedy widely used in folk medicine, but little has been known until now about its capacity to target MRSA."
Bees use propolis (bee glue) not only as a building material but also to keep low concentration of bacteria and fungi in the hive.
Numerous reports describe the antimicrobial properties of bee glue, and many active components have been identified (Marcucci, 1995; Burdock, 1998; Bankova et al., 2000; Banskota et al., 2001).
Propolis, or bee glue, is the waxy resin bees use to stick their hives together.
It is a fairly inexpensive tool and indispensable for separating hive pans, such as frames full of honey, which bees often stick together with a resinous substance called propolis, or bee glue, which they collect from the bark and buds of various trees and use to flu crevices and fix and varnish their combs.
Stars of TV soaps are taking daily doses of bee glue to stay healthy.
Propolis, or bee glue, has been used for at least 3,000 years as a natural healer and soother.
The worker bees drag them from the hive or coat them with propolis, sort of a bee glue from which they can't escape.