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在淋浴間懸掛桉屬植物的3大原因

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桉樹油有什麼功用?

桉樹精油 歷史上用於治理肺部疾病,也因為它的抵禦細菌功效而被用於古老療法。桉樹油是利用蒸汽蒸餾方法從桉樹葉中提取出來的油。這種油與桉樹葉相似,具有濃烈、清新的獨特香味。桉樹精油可以從不同的桉樹品種提取,每種都具有不同的效果。

大多數桉樹油的主要成分是桉葉油醇(1,8-桉樹腦),水平從45-77%不等,甚至含量可能更高。桉樹精油通常用於草本軟膏,以治理胸部和鼻竇充血。正如許多民間療法,特新研究開始支持桉樹油的歷史用途。 

桉樹油和呼吸系統疾病

提起 桉樹油,大多數人可能會聯想到吸入這種油來幫助緩解鼻竇和胸部充血。桉樹油的主要成分桉葉油醇具有溶解粘液特性。簡單來說,它有助於減少粘液。研究顯示,桉葉油醇可顯著降低參與粘液產生的兩種基因的表現。

除了粘液溶解作用,桉葉油醇還有助於鬆弛呼吸道的平滑肌。這可以幫助肺部擴張,減少充血,使呼吸更容易。除此之外,桉樹油還展示出強大的緩解炎癥活性,進一步彰顯它對呼吸系統疾病的益處。大多數關於桉樹油對呼吸益處的研究,都是使用口服膠囊形式的純桉葉油醇。

桉樹油的抵禦細菌作用

桉樹具有衆所周知的抵禦細菌作用,盡管在各桉樹物種之間也存有顯著差異。在某些情況下,桉樹油已被證明可有效殺死真菌、細菌和寄生蟲,並具有潛在的抗病毒作用。

真菌

與標準抗真菌藥品相比,桉樹精油對口腔中的念珠菌具有相似的作用。研究的作者基於有關結果而得出結論,指稀釋的桉樹油可能有助於保持口腔衛生。多年來,桉樹一直是幾種不同的 天然漱口水產品的常見成分。

細菌

由於細菌抑制劑的過度使用,細菌對標準抵禦細菌修復的機體防禦力越來越強。好幾種細菌以其耐藥性而聞名,包括金黃色葡萄球菌和結核分枝杆菌。特近的一項研究發現,桉樹精油對大多數抗藥性金黃葡萄球菌(MRSA)的菌株具有令人滿意的效果。其他研究也得出類似的結果。

全世界約有四分之一的人口感染了導致結核病的細菌。這些人中的一部分會患上結核病。這是一種可能致命的肺部感染。結核病是由分枝杆菌感染所引起,包括結核分枝杆菌。一項研究發現,桉樹精油是一種頗有前景的潛在治理方法,可在1%的稀釋度下,完全控制具有多重抗藥性的分枝杆菌的生長。

寄生蟲

棘球絛蟲是一種寄生於動物體內的絛蟲,可以感染人類。在一項對綿羊絛蟲幼蟲的研究中,1%濃度的桉樹溶液可在一分鍾內殺死100%的幼蟲,效果與標準藥品聚維酮碘和硝酸銀相似。

頭蝨是另一種在兒童中常見的寄生蟲感染。標準治理方法採用神經毒性殺蟲劑氯菊酯,盡管數據顯示桉樹油也可能是一種選項。蝨卵暴露於10%桉樹油5分鍾後被有效殺死。蝨卵暴露於氯菊酯10分鍾後,仍有95%的孵化率。 生姜 精油 也顯示出類似的結果。研究發現,當它們與桉樹聯合使用時效果更佳。

驅蟲劑

某些桉樹品種,尤其是檸檬桉樹,作爲 天然驅蟲劑時顯示出具有令人滿意的效果。檸檬桉樹精油具有明顯的檸檬味。即使環境保護局的有效驅蟲劑清單中,也包括檸檬桉油在內。與普通桉樹不同,檸檬桉樹富含一種名爲香茅醛的化合物。

一些研究專門針對具驅蟲劑功效的天然化合物 ,當中包括若乾常見的 精油成分,如檸檬烯、桉葉油醇、香葉醇、丁香酚和香茅醛。檸檬烯存在於柑橘類精油中,如 橙子、 檸檬和 青檸。桉葉油醇存在於桉樹油之中。香葉醇存在於玫瑰油、玫瑰草油和 香茅油之中。丁香酚主要來自 丁香精油。至於香茅醛則存在於檸檬桉和香茅精油之中。以精油組合作爲防止蟲子的自然方法似乎頗有功效。

桉樹油確實會吸引一些會蜇人的蘭花蜜蜂,盡管這些蘭花蜜蜂僅在南美洲和中美洲生長。不過,蘭花蜜蜂被認爲較一般蜜蜂安心,而且不會在中南美洲以外的地方出沒。

安心性

許多探索 桉樹精油 效果的研究,皆使用口服形式的純化桉葉油醇。精油含有高效的天然化學物質,但攙雜的情況在某些商業產品中並不鮮見。近期的估計顯示,多達80%的市售精油可能存有某種方式的攙雜。

必須在具有專業知識的醫學健康提供者的建議下,方可嘗試口服精油,以確保安心性和適當的劑量。對於藥學使用精油,以獨立的實驗室分析確認產品的純度也很重要。

要點

對 桉樹精油 及其成分進行的研究,顯示出其具有令人滿意的活性,有助於緩解呼吸系統疾病。桉樹似乎還對多種生物體有抵禦細菌作用(包括某些細菌、真菌和寄生蟲)和抗病毒作用。使用精油作爲驅蟲劑的配方也顯示出成效,特別是檸檬桉樹精油。

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