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Propolis is a substance made by the honeybee that provides
protection against harmful bacteria, viruses and fungi. Propolis is plant
resin collected by bees for use in and around the hive. In plants it is
usually the sticky coating around buds that serves to protect them from
the elements of weather plus from attack by bacteria, fungi, molds, and
viruses. These are properties that are useful to the bees and are enhanced
by the sticky properties of the propolis. Like pollen, propolis is a bee
product that cannot be clearly defined and varies from sample to sample.
This is a natural outcome of the collection process. Propolis collecting
bees will use resins from a large variety of tree and other plant species,
and these naturally will differ in their qualitative and quantitative chemical
composition. Nevertheless, different propolis samples do share considerable
similarity in their physical and overall general chemical nature.
Hundreds of chemical compounds have been identified from propolis. The main
chemical classes present in propolis are flavonoids, phenolics, and various
aromatic compounds. Propolis also contains some volatile oils, terpenes,
and beeswax, but these compounds are not believed to contribute as significantly
to the chemical properties and effects of propolis.
Flavonoids are well-known plant compounds that have antioxidant, anti-bacterial,
anti-fungal, anti-viral, and anti-inflammatory properties. Other properties
of propolis include acting as a local anesthetic, reducing spasms, healing
gastric ulcers, and strengthening capillaries. |
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