title: Comparison of Repellency Effect of Mosquito Repellents for DEET, Citronella, and Fennel Oil.
abstract: To confirm that Korean Food and Drug Administration (KFDA) guidelines are applicable to test the efficacy of mosquito repellents, these guidelines were used to test the efficacy and complete protection times (CPTs) of three representative mosquito repellents: N,N-diethyl-3-methylbenzamide (DEET), citronella, and fennel oil. The repellency of citronella oil decreased over time, from 97.9% at 0 h to 71.4% at 1 h and 57.7% at 2 h, as did the repellency of fennel oil, from 88.6% at 0 h to 61.2% at 1 h and 47.4% at 2 h. In contrast, the repellency of DEET remained over 90% for 6 h. The CPT of DEET (360 min) was much longer than the CPTs of citronella (10.5 min) and fennel oil (8.4 min). These results did not differ significantly from previous findings, and hence confirm that the KFDA guidelines are applicable for testing the efficacy of mosquito repellents.
authors.affiliation: Department of Bio-Industrial Technologies, Konkuk University, Seoul 143-701, Republic of Korea.
authors.forename: Jong Kwang
authors.initials: JK
authors.lastname: Yoon
authors.affiliation: Department of Bio-Industrial Technologies, Konkuk University, Seoul 143-701, Republic of Korea.
authors.forename: Kang-Chang
authors.initials: KC
authors.lastname: Kim
authors.affiliation: Department of Bio-Industrial Technologies, Konkuk University, Seoul 143-701, Republic of Korea.
authors.forename: Yeondong
authors.initials: Y
authors.lastname: Cho
authors.affiliation: Department of Bio-Industrial Technologies, Konkuk University, Seoul 143-701, Republic of Korea.
authors.forename: Yong-Dae
authors.initials: YD
authors.lastname: Gwon
authors.affiliation: Department of Bio-Industrial Technologies, Konkuk University, Seoul 143-701, Republic of Korea.
authors.forename: Han Sam
authors.initials: HS
authors.lastname: Cho
authors.affiliation: Department of Bio-Industrial Technologies, Konkuk University, Seoul 143-701, Republic of Korea.
authors.forename: Yoonki
authors.initials: Y
authors.lastname: Heo
authors.affiliation: Department of Bio-Industrial Technologies, Konkuk University, Seoul 143-701, Republic of Korea.
authors.forename: Kihoon
authors.initials: K
authors.lastname: Park
authors.affiliation: Department of Dermatology, Konkuk University Hospital, Seoul 143-729, Republic of Korea.
authors.forename: Yang-Won
authors.initials: YW
authors.lastname: Lee
authors.affiliation: Cosmetics Research Team, Department of Pharmaceutical and Medical Device Research, Ministry of Food and Drug Safety, Chungcheongbuk-do 363-700, Republic of Korea.
authors.forename: Mijeong
authors.initials: M
authors.lastname: Kim
authors.affiliation: Department of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea.
authors.forename: Yu-Kyoung
authors.initials: YK
authors.lastname: Oh
authors.affiliation: Department of Bio-Industrial Technologies, Konkuk University, Seoul 143-701, Republic of Korea.
authors.forename: Young Bong
authors.initials: YB
authors.lastname: Kim