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(L.) Roscoe ex Sm.
Zingiber zerumbet Sm.(Awapuhi), also known as the Shampoo Ginger (Malay = "Lempoyang"), is a vigorous ginger with leafy stems growing to about 1.2 m tall. It is found in many tropical countries. The rhizomes of Z. zerumbet, have been used as food flavoring and appetizers in various cuisines while the rhizome extracts have been used in herbal medicine.
Awapuhi is a perennial, so from autumn until spring it goes dormant above ground as the leafy stems shrivel and die away, leaving the pale brown, creeping stems (rhizomes) at ground level. In the spring the plant springs up anew. The 10-12 blade-shaped leaves 15–20 cm long grow in an alternate arrangement on thin, upright stem to 1.2 m tall. Among the leafy stems the conical or club-shaped flower heads burst forth on separate and shorter stalks. These appear in the summer, after the leafy stems have been growing for awile. The flower heads are reddish-green 3–10 cm long with overlapping scales, enclosing small yellowish-white flowers that poke out a few at a time. As the flower heads mature, they gradually fill with an aromatic, slimy liquid and turn a brighter red color. The flower stalks usually remain hidden beneath the leaf stalks.
In Hawaii, the spicy-smelling fresh rhizomes were pounded and used as medicine for indigestion and other ailments. The rhizomes can be stored in a cool, dark place to keep for use when needed. In traditional use, the rhizome was ground in a stone mortar with a stone pestle, was mixed with a ripe Noni fruit and then used to treat severe sprains. The pulp was placed in a cloth and loosely bound around the injured area.
To ease a stomach ache, the ground and strained rhizome material is mixed with water and drunk. Similarly, 'Awapuhi Pake or Ginger root (Zingiber officinale) is widely cultivated and eaten, or made into a tea for indigestion as well as increased circulation of the blood and an increased sense of well-being.
The leaves and leaf stalks, which are also fragrant, were used in baking in the imu, underground oven, to enhance the flavor of pork and fish as they cooked. Traditionally, the aromatic underground rhizomes were sliced, dried and pounded to a powder, then added to the folds of stored Kapa (Tapa) cloth.
Perhaps the most common use of 'Awapuhi is as a shampoo and conditioner for the hair. The clear slimy juice present in the mature flower heads is excellent for softening and bringing shininess to the hair. It can be left in the hair or rinsed out. Hawaiian women often pick or cut the flowerheads of this plant in the forest, as they approach a pool or waterfall for a refreshing summer bath, leave the flowers atop a nearby rock, and then squeeze the sweet juices into their hair and over their bodies when the swim is completed. The sudsy juice is excellent for massage also.
- Yob NJ, Jofrry SM, Affandi MM, Teh LK, Salleh MZ, Zakaria ZA (2011). "Zingiber zerumbet (L.) Smith: A Review of Its Ethnomedicinal, Chemical, and Pharmacological Uses". Evid Based Complement Alternat Med 2011: 543216. doi:10.1155/2011/543216. PMC 3092606. PMID 21584247.
- Sharifah Sakinah, SA; Tri Handayani, S; Azimahtol Hawariah, LP (2007). "Zerumbone induced apoptosis in liver cancer cells via modulation of Bax/Bcl-2 ratio". Cancer Cell International 7: 4. doi:10.1186/1475-2867-7-4. PMC 1852295. PMID 17407577.
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