Alpinia rafflesiana explained

Alpinia rafflesiana, commonly known in Malaysia as tepus telor, is a perennial herb belonging to the family Zingiberaceae. It is native to peninsular Malaysia.[1]

Description

The herb typically grows 0.5 meters (1.5 ft) to 2 meters (6 ft) tall.[2] The leaves are hairless and smooth on the upper surface and have light velvety hairs on the lower surface and margins in an alternating arrangement. It has an indeterminate inflorescence and is monoecious, with the female flower having 5 carpels and 5 stigmas and the male flowers having 5 anthers.[3] [4] Flowers are bright orange colored, measure between 4 and 4 ½ cm long with dark orange bracts and boat-shaped lobes; they lack petals and have a lily-like fragrance. The fruits are small, round, green, fleshy and contain one seed.

Ecology

Alpinia rafflesiana is found in the secondary forest and tends to grow from sea level to 1,200 meters. This plant tends to grow best in environments with full to partial sunlight, and moist and fertile soil. The A. rafflesiana species is dispersed by wind and water, and the species is pollinated by birds, bees and bats.[5] [6]

Cultivation and uses

Alpinia rafflesiana is mainly cultivated as a medicinal crop, growing the best in an environment containing moist and nutritious soil with either partial or full sunlight. The fruit of the A. rafflesiana plant is used as an anti-inflammatory and alternative cancer treatment by isolating cardamonin, a chemical that inhibits major signaling pathways found in inflammation and cancer.[7] In neuroinflammatory disorders, the isolated cardamonin has been used to block the secretion of pro-inflammatory mediators.[8] Cardamonin isolated from A. rafflesiana has shown to be successful in treating ulcers, nausea and vomiting, bacterial infections, fungal infections, low blood sugar, indigestion, and anxiety.[9] The leaves, pseudo-stems, rhizomes, and fruit of the plant are used to produce essential oils with antimicrobial properties.[10] The leaves of A. rafflesiana are commonly used to shrink and drain boils through poultice application.[11]

Notes and References

  1. Web site: Flora of Peninsular Malaysia Online - Newsletter subscription page. 2020-12-12. www.tfbc.frim.gov.my.
  2. Web site: Plants of the World Online Kew Science. 2020-12-12. Plants of the World Online. en.
  3. Web site: Alpinia rafflesiana. 2020-12-12. www.tfbc.frim.gov.my.
  4. Barrett. Spencer C. H.. 2010-02-12. Darwin's legacy: the forms, function and sexual diversity of flowers. Philosophical Transactions of the Royal Society B: Biological Sciences. 365. 1539. 351–368. 2838255 . 10.1098/rstb.2009.0212. 20047864 . 0962-8436. free.
  5. Benedict. John C.. Smith. Selena Y.. Collinson. Margaret E.. Leong-Škorničková. Jana. Specht. Chelsea D.. Marone. Federica. Xiao. Xianghui. Parkinson. Dilworth Y.. 2015-10-29. Seed morphology and anatomy and its utility in recognizing subfamilies and tribes of Zingiberaceae. American Journal of Botany. 102. 11. 1814–1841. 10.3732/ajb.1500300. 26507111 . 0002-9122. free. 2027.42/142322. free.
  6. Kress. W. John. Liu. Ai-Zhong. Newman. Mark. Li. Qing-Jun. January 2005. The molecular phylogeny of Alpinia (Zingiberaceae): a complex and polyphyletic genus of gingers. American Journal of Botany. en. 92. 1. 167–178. 10.3732/ajb.92.1.167. 21652395 .
  7. Ghosh. S.. Rangan. L.. June 2013. Alpinia: the gold mine of future therapeutics. 3 Biotech. en. 3. 3. 173–185. 10.1007/s13205-012-0089-x. 2190-572X. 3646104. 28324376.
  8. Chow. Yuh-Lit. Lee. Ka-Heng. Vidyadaran. Sharmili. Lajis. Nordin Haji. Akhtar. M. Nadeem. Israf. Daud Ahmad. Syahida. Ahmad. April 2012. Cardamonin from Alpinia rafflesiana inhibits inflammatory responses in IFN-γ/LPS-stimulated BV2 microglia via NF-κB signalling pathway. Immunopharmacology. en. 12. 4. 657–665. 10.1016/j.intimp.2012.01.009. 22306767 .
  9. Ma. Xiao-Ni. Xie. Chun-Lan. Miao. Zi. Yang. Quan. Yang. Xian-Wen. 2017. An overview of chemical constituents from Alpinia species in the last six decades. RSC Advances. en. 7. 23. 14114–14144. 10.1039/C6RA27830B. 2017RSCAd...714114M . 2046-2069. free.
  10. Jusoh. Shariha. Sirat. Hasnah Mohd. Ahmad. Farediah. September 2013. Essential Oils of Alpinia Rafflesiana and Their Antimicrobial Activities. Natural Product Communications. en. 8. 9. 1934578X1300800. 10.1177/1934578X1300800933. 1934-578X. free.
  11. Web site: Useful Tropical Plants. 2020-12-12. tropical.theferns.info.

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