Wintergreen

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Gaultheria from Fountain Springs, Pennsylvania FountainSpringsWintergreen.png
Gaultheria from Fountain Springs, Pennsylvania

Wintergreen is a group of aromatic plants. [1] The term "wintergreen" once commonly referred to plants that remain green (continue photosynthesis) throughout the winter. The term "evergreen" is now more commonly used for this characteristic.

Contents

Most species of the shrub genus Gaultheria demonstrate this characteristic and are called wintergreens in North America, the most common generally being the American wintergreen ( Gaultheria procumbens ). [2] Wintergreens in the genus Gaultheria contain an aromatic compound, methyl salicylate, and are used as a mintlike flavoring.

Uses

Wintergreen from Greeley, Pennsylvania; early December Wintergreenleavesandberries.jpg
Wintergreen from Greeley, Pennsylvania; early December

The berries of most species can be eaten raw or used in pies. [3]

Wintergreen is a common flavoring in American products ranging from chewing gum, mints, and candies to smokeless tobacco such as dipping tobacco (American "dip" snuff) and snus. It is a common flavoring for dental hygiene products such as mouthwash and toothpaste. It is often a component of root beer, which originated in the United States.

Wintergreen oil is an ingredient in some vegetable-oil based lubricants used in firearm maintenance. These products, sold under the names Seal1 and Frog Lube, are proprietary blends of vegetable oils intended to clean, lubricate and preserve the metal surfaces of firearms. [4] They have the advantages over petroleum-based products of being non-toxic and biodegradable.

Artificial wintergreen oil, which is pure methyl salicylate, is used in microscopy because of its high refractive index. [5] Natural wintergreen oil can be distinguished from artificial by gas chromatography (GC) and GC isotope ratio mass spectrometry analysis. [6]

Oil

Wintergreen (Gaultheria procumbens) essential oil WintergreenEssentialOil.png
Wintergreen (Gaultheria procumbens) essential oil

The Gaultheria species share the common characteristic of producing oil of wintergreen. Wintergreen oil is a pale yellow or pinkish fluid liquid that is strongly aromatic with a sweet, woody odor (components: methyl salicylate (about 98%), α-pinene, myrcene, delta-3-carene, limonene, 3,7-guaiadiene, and delta-cadinene) that gives such plants a distinctive "medicinal" smell whenever bruised. Salicylate sensitivity is a common adverse reaction to the methyl salicylate in oil of wintergreen; it can produce allergy-like symptoms or asthma.[ medical citation needed ]

Wintergreen essential oil is usually obtained by steam distillation of the leaves of the plant following maceration in warm water. Methyl salicylate is not present in the plant until formed by enzymatic action from a glycoside within the leaves as they are macerated in warm water. [7] Oil of wintergreen is also manufactured from some species of birch, but these deciduous trees are not called wintergreens. Spiraea plants also contain methyl salicylate in large amounts and are used similarly to wintergreen. Wintergreen has a strong "minty" odor and flavor; however, the Gaultheria -genus plants are not true mints, which belong to the genus Mentha.

Wintergreen also is used in some perfumery applications and as a flavoring agent for toothpaste, chewing gum, soft drinks, confectionery, Listerine, and mint flavorings. Wintergreen is used for rust removal and degreasing of machinery and is particularly effective for breaking through sea water corrosion.[ citation needed ]

Toxicity of oil

One milliliter (20 drops) of wintergreen oil is equivalent to about 1860 mg of aspirin, or almost six regular-strength adult aspirin tablets. [8]

Treatment is identical to the other salicylates. Early use of hemodialysis in conjunction with maximal supportive measures is encouraged in any significant ingestion of methyl salicylate. [9]

See also

Related Research Articles

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<span class="mw-page-title-main">Spearmint</span> Species of mint

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<span class="mw-page-title-main">Essential oil</span> Hydrophobic liquid containing volatile aroma compounds from plants

An essential oil is a concentrated hydrophobic liquid containing volatile chemical compounds from plants. Essential oils are also known as volatile oils, ethereal oils, aetheroleum, or simply as the oil of the plant from which they were extracted, such as oil of clove. An essential oil is essential in the sense that it contains the essence of the plant's fragrance—the characteristic fragrance of the plant from which it is derived. The term "essential" used here does not mean indispensable or usable by the human body, as with the terms essential amino acid or essential fatty acid, which are so called because they are nutritionally required by a living organism.

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

Methyl salicylate (oil of wintergreen or wintergreen oil) is an organic compound with the formula C8H8O3. It is the methyl ester of salicylic acid. It is a colorless, viscous liquid with a sweet, fruity odor reminiscent of root beer (in which it is used as a flavoring), but often associatively called "minty", as it is an ingredient in mint candies. It is produced by many species of plants, particularly wintergreens. It is also produced synthetically, used as a fragrance and as a flavoring agent.

<i>Gaultheria procumbens</i> Species of flowering plant

Gaultheria procumbens, also called the eastern teaberry, the checkerberry, the boxberry, or the American wintergreen, is a species of Gaultheria native to northeastern North America from Newfoundland west to southeastern Manitoba, and south to Alabama. It is a member of the Ericaceae.

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Eucalyptol is a monoterpenoid colorless liquid, and a bicyclic ether. It has a fresh camphor-like odor and a spicy, cooling taste. It is insoluble in water, but miscible with organic solvents. Eucalyptol makes up about 70–90% of eucalyptus oil. Eucalyptol forms crystalline adducts with hydrohalic acids, o-cresol, resorcinol, and phosphoric acid. Formation of these adducts is useful for purification.

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Wintergreen is a group of aromatic plants, many in the genus Gaultheria.

<span class="mw-page-title-main">Types of plant oils</span>

Plant oils or vegetable oils are oils derived from plant sources, as opposed to animal fats or petroleum. There are three primary types of plant oil, differing both the means of extracting the relevant parts of the plant, and in the nature of the resulting oil:

  1. Vegetable fats and oils were historically extracted by putting part of the plant under pressure, squeezing out the oil.
  2. Macerated oils consist of a base oil to which parts of plants are added.
  3. Essential oils are composed of volatile aromatic compounds, extracted from plants by distillation.

Gaultheria humifusa is a species of shrub in the heath family which is known by the common names alpine wintergreen and alpine spicy wintergreen. It is native to western North America, from British Columbia to California to Colorado, where it grows in moist subalpine mountain forests. It is a low, spreading shrub which may be quite small, forming flat patches on the ground or amongst rock and leaf litter. The stems are less than 20 cm (7.9 in) in length and have small oval-shaped leaves 1 to 2 cm long. It bears solitary bell-shaped flowers with white to light pink corollas and golden anthers which, after pollination, mature into bright to dull red berrylike fruit capsules. The leaves and fruit of Gaultheria humifusa are edible.

<i>Gaultheria ovatifolia</i> Species of flowering plant

Gaultheria ovatifolia is a species of shrub in the heath family which is known by the common names western teaberry, Oregon spicy wintergreen, and slender wintergreen. It is native to western North America from British Columbia to California, where it grows in high mountain forests.

<i>Ocimum campechianum</i> Species of plant

Ocimum campechianum is a plant species in the family Lamiaceae, widespread across Mexico, Central America, South America, the West Indies, and Florida.

<span class="mw-page-title-main">Bergamot essential oil</span> Cold-pressed essential oil

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<i>Thymus zygis</i> Species of flowering plant

Thymus zygis is a type of flowering plant in the family Lamiaceae native to the Iberian Peninsula and northern Morocco.

Wintergreen soda was a flavored carbonated beverage once popular in North America. The flavoring that was added to wintergreen soda water was "nominally made out of teaberry leaves, or wintergreen." Other regional common names used to describe Gaultheria procumbens included mountain berries, wintergreen plums, or checked berries. Wintergreen soda may have originally been a homemade foodstuff but was ultimately one of the many flavors listed in the catalogs of flavoring companies serving late 19th-century soda fountain proprietors.

References

  1. "WINTERGREEN". hort.purdue.edu. Retrieved 2022-05-02.
  2. "Wintergreen | Gaultheria procumbens". wildadirondacks.org. Retrieved 2022-05-02.
  3. Angier, Bradford (1974). Field Guide to Edible Wild Plants. Harrisburg, PA: Stackpole Books. p. 252. ISBN   0-8117-0616-8. OCLC   799792.
  4. "Froglube, Tracklube, and Seal1 Laboratory Analysis". Vuurwapen Blog. 2016-01-14. Retrieved 2018-09-20.
  5. Cecilia W. Lo, 2000. Developmental biology protocols, Volume 1, Springer in google books
  6. Murphy, Brett J.; Carlson, Richard E.; Howa, John D.; Wilson, Tyler M.; Buch, R. Michael (2021-09-03). "Determining the authenticity of methyl salicylate in Gaultheria procumbens L. and Betula lenta L. essential oils using isotope ratio mass spectrometry". Journal of Essential Oil Research. 33 (5): 442–451. doi: 10.1080/10412905.2021.1925362 . ISSN   1041-2905. S2CID   236342132.
  7. Essential Oil Profile of Wintergreen by Ingrid Krein
  8. Johnson, P. N.; Welch, D. W. (1984). "Methyl salicylate/aspirin (salicylate) equivalence: who do you trust?". Vet Hum Toxicol. 26 (4): 317–318. PMID   6464351.
  9. Howrie, D. L.; Moriaty, R.; Breit, R. (1985). "Candy flavoring as a source of salicylate poisoning". Pediatrics. 75 (5): 869–871. doi:10.1542/peds.75.5.869. PMID   3991273. S2CID   10089617.