Propolis

Last updated

Two bars from a top bar hive that the bees have glued together using propolis. Separating the bars will take some effort as the propolis has hardened. Propolized bars joined together.JPG
Two bars from a top bar hive that the bees have glued together using propolis. Separating the bars will take some effort as the propolis has hardened.
Propolis on the upper bar Propolized bars pulled apart.JPG
Propolis on the upper bar

Propolis or bee glue is a resinous mixture that honey bees produce by mixing saliva and beeswax with exudate gathered from tree buds, sap flows, or other botanical sources. It is used as a sealant for unwanted open spaces in the beehive. Propolis is used for small gaps (around 6 mm (14 in) or less), while gaps larger than the bee space (around 9 mm (38 in)) are usually filled with burr comb. Its color varies depending on its botanical source, with dark brown as the most common. Propolis is sticky above 19 °C (66 °F), while at lower temperatures, it becomes hard and brittle.

Contents

When foraging, worker bees primarily harvest pollen and nectar, while also collecting water and plant resin necessary for the production of propolis. [1] The chemical composition and nature of propolis depend on environmental conditions and harvested resources. [2]

Types

Mixed types of propolis found in European countries with a moderate climate include two or more sources of plant resins (plant species) identified by composition, such as aspen, Mediterranean, poplar, Pacific, Brazilian green, Brazilian red, and Mangifera types of propolis. [3] [ citation needed ]

Purpose

Propolis drops in red (units in micrometers) Propolis drops.jpg
Propolis drops in red (units in micrometers)

Bees seal the beehive with propolis to protect the colony from the elements, such as rain and cold winter drafts.

Propolis functions may include: [1]

  1. Reinforcing the structural stability and reduce vibration
  2. Providing improved thermal insulation to the hive and reduce water loss
  3. Providing protection from pathogens, via antifungal and antibacterial properties [4] [5]
  4. Make the hive more defensible against parasites and predators by narrowing the existing entrance (in wild colonies) to a single "choke point"
  5. Mitigate putrefaction within the hive - bees usually carry waste out of and away from the hive, but if a small lizard or mouse, for example, finds its way into the hive and dies there, bees may be unable to carry it out through the hive entrance. In that case, they would attempt instead to seal the carcass in propolis, essentially mummifying it and making it odorless and harmless.

Composition

Propolis in hive Propolis in beehives.jpg
Propolis in hive

The composition of propolis varies from hive to hive, from district to district, and from season to season. [6] Normally, it is dark brown in color, but it can be found in green, red, black, and white hues, depending on the sources of resin found in the particular hive area. Honey bees are opportunists, gathering what they need from available sources, and detailed analyses show that the chemical composition of propolis varies considerably from region to region, along with the vegetation. In northern temperate climates, for example, bees collect resins from trees, such as poplars and conifers (the biological role of resin in trees is to seal wounds and defend against bacteria, fungi, and insects). "Typical" northern temperate propolis has roughly 50 constituents, primarily resins and vegetable balsams (50%), waxes (30%), essential oils (10%), and pollen (5%). [7] [8] An analysis of propolis from Henan, China, found sinapinic acid, isoferulic acid, caffeic acid, and chrysin. [9]

In neotropical regions, in addition to a large variety of trees, bees may also gather resin from flowers in the genera Clusia and Dalechampia , which are the only known plant genera that produce floral resins to attract pollinators. [10] Clusia resin contains polyprenylated benzophenones. [11] [12] [13] In some areas of Chile and Argentina Andean valleys, propolis contains viscidone, a terpene from Baccharis shrubs, [14] and prenylated acids, such as 4-hydroxy-3,5-diprenyl cinnamic acid. [15]

Overall, flavonoids, phenolic acids, and phenolic aldehydes are common constituents, while coumarins, stilbenes, and lignans are less common. [16]

Uses

Traditional medicine

Propolis has been used in traditional medicine, with insufficient evidence to rate its effectiveness in the treatment of any illnesses. [17]

Musical instruments

Propolis is used by some string-instrument makers (violin, viola, cello, and bass) as a varnish ingredient. [18] A tincture of propolis may be used to seal the surface of newly made violin family bridges, and may be used in the maintenance of the bores of pan flute tubes.[ citation needed ] Claims that Antonio Stradivari used propolis in the varnish of his instruments were disproven in 2009. [19] [20]

Related Research Articles

<span class="mw-page-title-main">Honey</span> Sweet and viscous substance made by bees mostly using nectar from flowers

Honey is a sweet and viscous substance made by several species of bees, the best-known of which are honey bees. Honey is made and stored to nourish bee colonies. Bees produce honey by gathering and then refining the sugary secretions of plants or the secretions of other insects, like the honeydew of aphids. This refinement takes place both within individual bees, through regurgitation and enzymatic activity, and during storage in the hive, through water evaporation that concentrates the honey's sugars until it is thick and viscous.

<span class="mw-page-title-main">Beeswax</span> Natural wax produced by honey bees of the genus Apis

Beeswax is a natural wax produced by honey bees of the genus Apis. The wax is formed into scales by eight wax-producing glands in the abdominal segments of worker bees, which discard it in or at the hive. The hive workers collect and use it to form cells for honey storage and larval and pupal protection within the beehive. Chemically, beeswax consists mainly of esters of fatty acids and various long-chain alcohols.

<span class="mw-page-title-main">Honey bee</span> Colonial flying insect of genus Apis

A honey bee is a eusocial flying insect within the genus Apis of the bee clade, all native to mainland Afro-Eurasia. After bees spread naturally throughout Africa and Eurasia, humans became responsible for the current cosmopolitan distribution of honey bees, introducing multiple subspecies into South America, North America, and Australia.

<span class="mw-page-title-main">Resin</span> Solid or highly viscous substance

In polymer chemistry and materials science, a resin is a solid or highly viscous substance of plant or synthetic origin that is typically convertible into polymers. Resins are usually mixtures of organic compounds. This article focuses mainly on naturally occurring resins.

<span class="mw-page-title-main">Stradivarius</span> String instruments built by Stradivari family, particularly Antonio

A Stradivarius is one of the string instruments, such as violins, violas, cellos, and guitars, crafted by members of the Stradivari family, particularly Antonio Stradivari, in Cremona, Italy, during the late 17th and early 18th centuries. These instruments are known for their craftsmanship, tonal quality, and lasting legacy, and are considered some of the finest ever made. Stradivari's violins, in particular, are coveted by musicians and collectors, with many selling for millions of dollars.

<span class="mw-page-title-main">Apitherapy</span> Pseudoscientific alternative medical therapy using bee products

Apitherapy is a branch of alternative medicine that uses honey bee products, including honey, pollen, propolis, royal jelly and bee venom. There has been no scientific or clinical evidence for the efficacy or safety of apitherapy treatments. Bee venom can cause minor or major reactions, including allergic responses, anaphylaxis or death.

<span class="mw-page-title-main">Royal jelly</span> Secretion from the glands of nurse bees

Royal jelly is a honey bee secretion that is used in the nutrition of larvae and adult queens. It is secreted from the glands in the hypopharynx of nurse bees, and fed to all larvae in the colony, regardless of sex or caste.

<span class="mw-page-title-main">Worker bee</span> Caste of honey bee

A worker bee is any female bee that lacks the reproductive capacity of the colony's queen bee and carries out the majority of tasks needed for the functioning of the hive. While worker bees are present in all eusocial bee species, the term is rarely used for bees other than honey bees, particularly the European honey bee. Worker bees of this variety are responsible for approximately 80% of the world's crop pollination services.

<span class="mw-page-title-main">Bee pollen</span> Ball of pollen gathered by worker honeybees

Bee pollen, also known as bee bread and ambrosia, is a ball or pellet of field-gathered flower pollen packed by worker honeybees, and used as the primary food source for the hive. It consists of simple sugars, protein, minerals and vitamins, fatty acids, and a small percentage of other components. Bee pollen is stored in brood cells, mixed with saliva, and sealed with a drop of honey. Bee pollen is harvested as food for humans and marketed as having various, but yet unproven, health benefits.

Hive management in beekeeping refers to intervention techniques that a beekeeper may perform to ensure hive survival and to maximize hive production. Hive management techniques vary widely depending on the objectives.

<i>Clusia</i> Genus of flowering plants in the family Clusiaceae

Clusia is the type genus of the plant family Clusiaceae. Comprising 300-400 species, it is native to the Neotropics. The genus is named by Carl Linnaeus in honor of the botanist Carolus Clusius.

<span class="mw-page-title-main">Stingless bee</span> Bee tribe, reduced stingers, strong bites

Stingless bees (SB), sometimes called stingless honey bees or simply meliponines, are a large group of bees (from about 462 to 552 described species), comprising the tribe Meliponini (or subtribe Meliponina according to other authors). They belong in the family Apidae (subfamily Apinae), and are closely related to common honey bees (HB, tribe Apini), orchid bees (tribe Euglossini), and bumblebees (tribe Bombini). These four bee tribes belong to the corbiculate bees monophyletic group. Meliponines have stingers, but they are highly reduced and cannot be used for defense, though these bees exhibit other defensive behaviors and mechanisms. Meliponines are not the only type of bee incapable of stinging: all male bees and many female bees of several other families, such as Andrenidae and Megachilidae (tribe Dioxyini), also cannot sting.

<span class="mw-page-title-main">Bee sting</span> Puncture wound caused by a bees stinger

A bee sting is the wound and pain caused by the stinger of a female bee puncturing skin. Bee stings differ from insect bites, with the venom of stinging insects having considerable chemical variation. The reaction of a person to a bee sting may vary according to the bee species. While bee stinger venom is slightly acidic and causes only mild pain in most people, allergic reactions may occur in people with allergies to venom components.

<span class="mw-page-title-main">Isoamyl acetate</span> Chemical compound with banana odor

Isoamyl acetate, also known as isopentyl acetate, is an ester formed from isoamyl alcohol and acetic acid, with the molecular formula C7H14O2. It is a colorless liquid that is only slightly soluble in water, but very soluble in most organic solvents. Isoamyl acetate has a strong odor which is described as similar to both banana and pear. Pure isoamyl acetate, or mixtures of isoamyl acetate, amyl acetate, and other flavors in ethanol may be referred to as banana oil or pear oil.

<span class="mw-page-title-main">Shilajit</span> Thick, sticky tar-like substance

Shilajit, salajeet, mumijo or mumlayi or mumie is an organic-mineral product of predominantly biological origin, formed in the mountains.

<span class="mw-page-title-main">Ferruginol</span> Chemical compound

Ferruginol is a natural phenol with a terpenoid substructure. Specifically, it is a diterpene of the abietane chemical class, meaning it is characterized by three fused six-membered rings and alkyl functional groups. Ferruginol was first identified in 1939 by Brandt and Neubauer as the main component in the resin of the Miro tree and has since been isolated from other conifer species in the families Cupressaceae and Podocarpaceae. As a biomarker, the presence of ferruginol in fossils, mainly resin, is used to describe the density of these conifers in that particular biosphere throughout time.

<span class="mw-page-title-main">Western honey bee</span> European honey bee

The western honey bee or European honey bee is the most common of the 7–12 species of honey bees worldwide. The genus name Apis is Latin for 'bee', and mellifera is the Latin for 'honey-bearing' or 'honey-carrying', referring to the species' production of honey.

<i>Apis cerana japonica</i> Subspecies of bee

Apis cerana japonica is a subspecies of the eastern honeybee native to Japan. It is commonly known as the Japanese honeybee. Analysis of mitochondrial DNA suggests that the ancestors of this subspecies came to Japan from the Korean Peninsula via Tsushima Island. Genetic differentiation between Japanese honeybees and Korean honeybees occurred about 20,000 years ago, which coincides with the separation of Japan's Tsushima Island from the Korean Peninsula due to sea level rise. They have been observed moving into urban areas in the absence of natural predators.

<i>Tetragonisca angustula</i> Species of bee

Tetragonisca angustula is a small eusocial stingless bee found in México, Central and South America. It is known by a variety of names in different regions. A subspecies, Tetragonisca angustula fiebrigi, occupies different areas in South America and has a slightly different coloration.

<i>Tetragonula iridipennis</i> Species of bee

The Indian stingless bee or dammar bee, Tetragonula iridipennis, is a species of bee belonging to the family Apidae, subfamily Apinae. It was first described by Frederick Smith in 1854 who found the species in what is now the island of Sri Lanka. Many older references erroneously placed this species in Melipona, an unrelated genus from the New World, and until recently it was placed in Trigona, therefore still often mistakenly referred to as Trigona iridipennis. For centuries, colonies of T. iridipennis have been kept in objects such as clay pots so that their highly prized medicinal honey can be utilized.

References

  1. 1 2 Simone-Finstrom M, Spivak M (May–June 2010). "Propolis and bee health: The natural history and significance of resin use by honey bees". Apidologie. 41 (3): 295–311. doi: 10.1051/apido/2010016 . hdl: 11299/182451 .
  2. Ferreira JM, Fernandes-Silva CC, Salatino A, Negri G, Message D (August 2017). "New propolis type from north-east Brazil: chemical composition, antioxidant activity and botanical origin". Journal of the Science of Food and Agriculture. 97 (11): 3552–3558. Bibcode:2017JSFA...97.3552F. doi:10.1002/jsfa.8210. PMID   28078783.
  3. Popova M, Trusheva B, Bankova V (2022). "Chemistry and Applications of Propolis". Reference Series in Phytochemistry. Springer International Publishing. pp. 657–688. doi:10.1007/978-3-030-91378-6_38. ISBN   978-3-030-91377-9. ISSN   2511-834X.
  4. National Geographic p. 83 03/2020
  5. Walker M (23 July 2009). "Honeybees sterilise their hives". BBC News. Retrieved 24 July 2009.
  6. Toreti VC, Sato HH, Pastore GM, Park YK (2013). "Recent progress of propolis for its biological and chemical compositions and its botanical origin". Evidence-Based Complementary and Alternative Medicine. 2013: 697390. doi: 10.1155/2013/697390 . PMC   3657397 . PMID   23737843.
  7. Wagh, Vijay D. (2013). "Propolis: A Wonder Bees Product and Its Pharmacological Potentials". Advances in Pharmacological Sciences. 2013: 308249. doi: 10.1155/2013/308249 . ISSN   1687-6334. PMC   3872021 . PMID   24382957.
  8. Burdock, G. A. (6 April 1998). "Review of the biological properties and toxicity of bee propolis (propolis)". Food and Chemical Toxicology. 36 (4): 347–363. doi:10.1016/S0278-6915(97)00145-2. ISSN   0278-6915. PMID   9651052.
  9. Qiao Z, Chen R (August 1991). "[Isolation and identification of antibiotic constituents of propolis from Henan]". Zhongguo Zhong Yao Za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica (in Chinese). 16 (8): 481–2, 512. PMID   1804186.
  10. Mesquita RC, Franciscon CH (June 1995). "Flower visitors of Clusia nemorosa G. F. W. Meyer (Clusiaceae) in an Amazonian white-sand Campina". Biotropica. 27 (2): 254–8. Bibcode:1995Biotr..27..254D. doi:10.2307/2389002. JSTOR   2389002.
  11. Tomás-Barberán FA, García-Viguera C, Vit-Oliviera P, Ferreres F, Tomás-Lorente F (3 August 1993). "Phytochemical evidence for the botanical origin of tropical propolis from Venezuela". Phytochemistry . 34 (1): 191–6. Bibcode:1993PChem..34..191T. doi:10.1016/S0031-9422(00)90804-5.
  12. Armbruster WS (September 1984). "The Role of Resin in Angiosperm Pollination: Ecological and Chemical Considerations". American Journal of Botany. 71 (8): 1149–60. doi:10.2307/2443391. JSTOR   2443391.
  13. Bankova V (March 2005). "Recent trends and important developments in propolis research". Evidence-Based Complementary and Alternative Medicine. 2 (1): 29–32. doi:10.1093/ecam/neh059. PMC   1062152 . PMID   15841275.
  14. Montenegro G, Mujica AM, Peña RC, Gómez M, Serey I, Timmermann BN (2004). "Similitude pattern and botanical origin of the Chilean propolis". Phyton. 73: 145–154. ISSN   1851-5657. Archived from the original on 17 December 2014. Retrieved 7 November 2008.
  15. Park YK, Alencar SM, Aguiar CL (April 2002). "Botanical origin and chemical composition of Brazilian propolis". Journal of Agricultural and Food Chemistry. 50 (9): 2502–2506. doi:10.1021/jf011432b. PMID   11958612.
  16. Berenbaum MR, Calla B (January 2021). "Honey as a Functional Food for Apis mellifera". Annual Review of Entomology. 66 (1). Annual Reviews: 185–208. doi:10.1146/annurev-ento-040320-074933. PMID   32806934. S2CID   221165130.
  17. "Propolis". MedlinePlus, U.S. National Library of Medicine. 11 May 2020. Retrieved 5 December 2020.
  18. Fulton W (July 1997). "PROPOLIS SOAP – Used as a Ground for Violin Varnish". Southern California Association of Violin Makers. Retrieved 6 December 2020.
  19. "Stradivarius varnish myth debunked". BBC Music. 8 December 2009.
  20. "Secret behind the composition of the varnish on Stradivari violins revealed". PhysOrg.com. 4 December 2009.