Plai, Essential Oil

PLAI THAILAND
ZINGIBER CASSUMUNAR

Ingredient Type - ESSENTIAL OIL
Extraction Method - STEAM DISTILLED

Cassumunar ginger: Zingiber cassumunar, now thought to be a synonym of Zingiber montanum(J.König) Link ex A.Dietr.,^[1] is a species of plant in the ginger family and is also a relative of galangal. It is called plai (ไพล) in Thailand, in addition to (ว่านไฟ wan-fai) in Isan language and (ปูเลย bpulai) inNorthern Thai language. The rhizome of variant Roxburgh is used medicinally in massage and even in food in Thailand, and somewhat resembles ginger root or galangal.^[2] In aromatherapy, plai oil is utilized as an essential oil that is believed to ease pain and inflammation.

A Japanese study from 1991 suggests that (E)-1-(3,4-dimethoxyphenyl)but-1-ene, an active ingredient ofZingiber cassumunar rhizomes, has analgesic and anti-inflammatory properties.^[3] In addition, an American study found that plai oil exhibits antimicrobial activity against a wide range of Gram-positive and Gram-negative bacteria, dermatophytes, and yeasts.^[4] Finally, a 1992 study discovered that thezerumbone contained in the rhizomes of the plant has antifungal properties against pathogenic fungi.^[5]

The plant also contains the essential oils sabinene 31-48%, terpineol 4-30%,^[2] and apparently uniqueCurcuminoid antioxidants, namely Cassumunarin types A, B, and C.^[6]

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