Piperitone is a monoterpenoid that has been found in Mentha and has diverse biological activities. It is active against E. coli, P. aeruginosa, S. typhimurium, S. aureus, R. leguminosarum, and B. subtilis in agar diffusion assays. Piperitone enhances the antibacterial activity of nitrofurantoin against several nitrofurantoin-resistant species of Enterobacteriaceae, including C. freundii, E. coli, and S. marcescens, by 3- to 20-fold. It exhibits feeding deterrent and repellent activities against ants (Crematogaster) with 80% deterrence index (D) and 80% repellent index (R) values of 0.13 µg/µl and 8.9 µg/cm, respectively. Piperitone is insecticidal against C. maculatus eggs, larvae, and adults.
Piperitone is as a powerful repellent and antiappetent agent. Piperitone is very toxic to Cymbopogon schoenanthus (C. schoenanthus) adults, newly laid eggs and to neonate larvae. Insecticidal activity.
体外研究
Piperitone isolated from Cymbopogon schoenanthus (C. schoenanthus).
体内研究
The insecticidal activity of crude essential oil extracted from Cymbopogon schoenanthus and of its main constituent, Piperitone, is assessed on different developmental stages of Callosobruchus maculatus (C. maculatus). Piperitone is toxic to C. maculatus adults with a LC50 value of 1.6 μL/L. Piperitone inhibits the development of newly laid eggs and of neonate larvae, but is less toxic than the crude extract to individuals developing inside the seeds. Piperitone shows the strongest ovicidal activity. All the eggs were aborted at 6.7 μL/L. Piperitone (10 μM) kills all the neonate larvae.
Animal Model:
Fifty pairs of C. maculatus adults
Dosage:
6.7, 10, 16.7 or 33.3 μL/L
Administration:
24 hours
Result:
Piperiton was more toxic than crude oil because the LC50 recorded was 1.6 μL/L for Piperitone vs. 2.7 μL/L for the crude oil.
分子式
C10H16O
分子量
152.24
CAS号
89-81-6
中文名称
胡椒酮
运输条件
Room temperature in continental US; may vary elsewhere.
Guillaume K Ketoh, et al. Comparative effects of Cymbopogon schoenanthus essential oil and piperitone on Callosobruchus maculatus development. Fitoterapia. 2006 Dec;77(7-8):506-10.