精油の揮散成分によるヤケヒョウヒダニ,コナヒョウヒダニおよびケナガコナダニに対する殺ダニ効果

概要

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The volatiles emitted from eighty two kinds of essential oils were tested for their killing activities on the mites commonly found in our houses, such as Dermatophagoides pteronyssinus, Dermatophagoides farinae and Tyrophagus putrescentiae. The killing activity was determined by the novel method in which mites were kept in contact with the volatiles from essential oils for 24 h at 25℃, in 75% relative humidity in an airtight petri dish to determine the amount (μ1) of the essential oils required to give 100% mortality of the mites. Fifty two kinds of essential oils were found to have the killing activity, of which almond bitter oil, caraway oil, dill oil, spearmint oil, ho oil and wintergreen oil were very powerful miticides with LD_<100> values ranged from 1 μ1 to 5 μ1. Benzaldehyde, d-carvone, l-carvone, linalool and methyl salicylate, which are the main principles of these essential oils, showed very high activities. In order to study the mechanism of the killing activity, the essential oils were further tested for their inhibiting effect on cholinesterase (ChE) activities in vitro. However, there was no correlation between the mite-killing effect and the inhibiting effect on ChE activities
日本生薬学会の論文
1989-06-20