Friday, August 11, 2017

檸檬尤加利精油驅蚊強過化學的DEET

有研究指出天然精油尤其是檸檬尤加利精油, 驅蚊強過化學的DEET, 可安心使用, 但檸檬尤加利是醛類, 會有刺激皮膚的可能, 可純精油滴在衣服上或做成蚊怕水噴在身上或衣服上。

有關研究在以下期刊登出:

J Am Mosq Control Asso 2002 Jun, 18(2): 107-10
Field evaluation of three plant-based insect repellents against malaria vectors in Vaca Diez Province, the Bolivian Amazon.
Moore SJ1, Lenglet A, Hill N.


Abstract
The efficacy of repellents against Anopheles darlingi, the main malaria vector in Bolivia, was evaluated. This mosquito has a peak in biting activity early in the evening. Three natural repellents (1 eucalyptus based, 1 neem based, and 1 containing several repellent essential oils) were tested in comparison with 15% deet in human landing catches in Bolivia. The eucalyptus-based repellent containing 30% p-menthane-diol applied at a dose similar to those used in practice gave 96.89% protection for 4 h. Deet gave 84.81% protection. The other 2 products did not provide significant protection from mosquito bites.

J Am Mosq Control Asso 1996 Jun, 12(2 Pt. 1): 243-6
Evaluation of a eucalyptus-based repellent against Anopheles spp. in Tanzania.
Trigg JK1.

Abstract
A eucalyptus-based insect repellent (PMD) with the principal active ingredient p-menthane-3,8-diol was evaluated in the field in comparison with deet. In human landing catches in Tanzania, 3 formulations of PMD were tested against Anopheles gambiae and An. funestus. Repellents, applied to the legs and feet at doses chosen as used in practice, gave complete protection from biting for between 6 and 7.75 h, depending upon the formulation type, with no significant difference between PMD and deet in terms of efficacy and duration of protection

http://www.naturalnews.com/050188_DEET_mosquitos_essential_oils.html
 

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