Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound
The amyrins are three closely related natural chemical compounds of the triterpene class. They are designated α-amyrin (ursane skeleton),[3] β-amyrin (oleanane skeleton) [4] and δ-amyrin. Each is a pentacyclic triterpenol with the chemical formula C30H50O. They are widely distributed in nature and have been isolated from a variety of plant sources such as epicuticular wax. In plant biosynthesis, α-amyrin is the precursor of ursolic acid and β-amyrin is the precursor of oleanolic acid.[5] All three amyrins occur in the surface wax of tomato fruit.[6][7] α-Amyrin is found in dandelion coffee.[citation needed]
A study demonstrated that α,β-amyrin exhibits long-lasting antinociceptive and anti-inflammatory properties in 2 models of persistent nociception via activation of the cannabinoid receptors CB1 and CB2 and by inhibiting the production of cytokines and expression of NF-κB, CREB and cyclooxygenase 2.[8]
^Merck Index, 11th Edition, 653
^Merck Index, 11th Edition, 654
^Saimaru, H; Orihara, Y; Tansakul, P; Kang, YH; Shibuya, M; Ebizuka, Y (2007). "Production of triterpene acids by cell suspension cultures of Olea europaea". Chem Pharm Bull. 55 (5): 784–8. doi:10.1248/cpb.55.784. PMID 17473469.
^Tansakul, P; Shibuya, M; Kushiro, T; Ebizuka, Y (2006). "Dammarenediol-II synthase, the first dedicated enzyme for ginsenoside biosynthesis, in Panax ginseng". FEBS Lett. 580 (22): 5143–9. doi:10.1016/j.febslet.2006.08.044. PMID 16962103. S2CID 20731479.
^Babalola, Ibrahim T; Shode, Francis O (2013). "Ubiquitous Ursolic Acid: A Potential Pentacyclic Triterpene Natural Product" (PDF). Journal of Pharmacognosy and Phytochemistry. 2 (2): 214–222. ISSN 2278-4136. Retrieved 31 October 2022.
^Yasumoto, S; Seki, H; Shimizu, Y; Fukushima, EO; Muranaka, T (2017). "Functional Characterization of CYP716 Family P450 Enzymes in Triterpenoid Biosynthesis in Tomato". Front Plant Sci. 8: 21. doi:10.3389/fpls.2017.00021. PMC 5278499. PMID 28194155.
^Bauer, Stefan; Schulte, Erhard; Thier, Hans-Peter (2004). "Composition of the surface wax from tomatoes II. Quantification of the components at the ripe red stage and during ripening". European Food Research and Technology. 219: 487–491. doi:10.1007/s00217-004-0944-z. S2CID 90472894.
^Simão da Silva, Kathryn A.B.; Paszcuk, Ana F.; Passos, Giselle F.; Silva, Eduardo S.; Bento, Allisson Freire; Meotti, Flavia C.; Calixto, João B. (August 2011). "Activation of cannabinoid receptors by the pentacyclic triterpene α,β-amyrin inhibits inflammatory and neuropathic persistent pain in mice". Pain. 152 (8): 1872–1887. doi:10.1016/j.pain.2011.04.005. ISSN 0304-3959. PMID 21620566. S2CID 23484784.
The amyrins are three closely related natural chemical compounds of the triterpene class. They are designated α-amyrin (ursane skeleton), β-amyrin (oleanane...
of H. indicus contain hexatriacontane, lupeol, its octacosanoate, α-amyrin, β-amyrin, its acetate and sitosterol. It also contains new coumarino-lignoid-hemidesminine...
called cylindrin) and fatty esters of α- and β-amyrin. Both isoarborinol methyl ether and the amyrin mixture demonstrated antimicrobial activity against...
called cylindrin) and fatty esters of α- and β-amyrin. Both isoarborinol methyl ether and the amyrin mixture demonstrated antimicrobial activity against...
2,3-oxidosqualene. Beta-amyrin synthase creates beta-amyrin by a ring formation cascade. After the formation of beta amyrin, CYP716AATR2, also known...
American manufacturer of computer components PNY, an alternative name of Beta-amyrin synthase, an enzyme PNY, the IATA airport code for the Pondicherry Airport...
megastigmane glycosides (salvionosides A, B and C), pachystazone, salvipisone, α-amyrin, ursolic and oleanolic acids, stigmast-7-en-3-one, 24-methylenecycloartanol...
mainly taraxasterol, but also the 4,4-dimethyl phytosterols alpha- and beta-amyrin, taraxerol, and fern-7en-3beta-ol. It has been used in folk medicine, and...
Seeds: Galactomannan, L-glucosyl rhamnoside of physcion Roots: Betulin, α-amyrin, β-sitosterol The alkaloids are mainly of three broad structural types,...
sharp pine and lemon-like scent. One of the resin components is called amyrin. Elemi resin is chiefly used commercially in varnishes and lacquers, and...
glycyrrhetic acid) is a pentacyclic triterpenoid derivative of the beta-amyrin type obtained from the hydrolysis of glycyrrhizic acid, which was obtained...
verticilla-4(20),7,11-triene). It also contained the following triterpenes: β-amyrin, α-amyrin, β-amyrenone, and α-amyrenone. The oleogum resin also contained nortriterpenes...