Etlingera maingayi

Etlingera maingayi
Conservation status
Least Concern  (IUCN 3.1) [1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Clade:	Commelinids
Order:	Zingiberales
Family:	Zingiberaceae
Genus:	Etlingera
Species:	E. maingayi
Binomial name
Etlingera maingayi (Baker) R.M.Sm.
Synonyms [2]
Amomum maingayiBaker Etlingera maingayi var. longibracteata(Holttum) I.M.Turner Etlingera maingayi var. ovataC.K.Lim Hornstedtia maingayi(Baker) Ridl. Nicolaia maingayi(Baker) K.Larsen Phaeomeria maingayi(Baker) K.Schum.

Etlingera maingayi, the Malay rose, is a species of herbaceous, perennial, flowering plant in the ginger family, Zingiberaceae. ^{[2] [3] [4]} This species occurs in southern Thailand, where its flowers are eaten as vegetables, and Malaysia. ^[5] It grows along forest edges and in disturbed areas. ^[4]

Description

Etlingera maingayi grows to less than 2 m (6 ft 7 in) high. ^[6] Its leaves are variable, with undulating fringes, and emit a sour scent when crushed. ^[7] Young leaves are translucent and reddish on both sides. ^[5]

Chemistry

Leaves of E. maingayi displayed ferrous ion chelating ability and lipid peroxidation inhibition activity that were much higher than young leaves of Camellia sinensis . ^[7] Leaves of E. maingayi had the highest yield of oil (1320 mg/100 g) consisting mainly of lauric acid (45%) and decanoic acid (43%). The unpleasant sour scent of leaves when crushed may be due to these two acids.

References

1. Saw, L.G. (2019). "Etlingera maingayi". IUCN Red List of Threatened Species . 2019 e.T117321504A124282222. doi: 10.2305/IUCN.UK.2019-3.RLTS.T117321504A124282222.en . Retrieved July 26, 2020.
2. "Etlingera maingayi (Baker) R.M.Sm". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved July 26, 2020.
3. "Etlingera maingayi". toptropicals.com. Retrieved 2010-02-08.
4. Yeats, Helen (29 October 2013). "The History and Cultivation of Etlingera – The Torch Gingers – at the Royal Botanic Garden Edinburgh". Sibbaldia: The International Journal of Botanic Garden Horticulture (11): 71–85. doi: 10.24823/Sibbaldia.2013.52 .
5. "Thai Zingiberaceae: Species diversity and their uses". International Union of Pure and Applied Chemistry. Retrieved 2010-02-08.
6. Lim, C. K. (2000). "Taxonomic notes on Etlingera Giseke (Zingiberaceae) in Peninsular Malaysia: the Nicolaia taxa". Folia Malaysiana. 1: 1–12.
7. Chan, E.; Lim, Y.; Omar, M. (2007). "Antioxidant and antibacterial activity of leaves of Etlingera species (Zingiberaceae) in Peninsular Malaysia". Food Chemistry. 104 (4): 1586–1593. doi:10.1016/j.foodchem.2007.03.023.