dc.contributor.author | Ondigo, Rachel A. | |
dc.contributor.author | Sum, Kefa S. | |
dc.contributor.author | Samita, Fidelis N. | |
dc.date.accessioned | 2022-04-06T03:49:38Z | |
dc.date.available | 2022-04-06T03:49:38Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | Ondigo, R. A.* ,Kefa, S. S. and Samita, F. N. (2021). Chemical composition of the essential oil of African blue basil (ocimum Kilimandscharicumguerke) as a pyrethrum synergist. In: Isutsa, D. K. (Ed.). Proceedings of the 7th International Research Conference held in Chuka University from 3rd to 4th December 2020, Chuka, Kenya, p.9-25 | en_US |
dc.identifier.uri | http://repository.chuka.ac.ke/handle/chuka/16101 | |
dc.description | ksum@pyrethrum.co.ke; fidelissamita@gmail.com; orache01@gmail.com | en_US |
dc.description.abstract | Concern on quality and safety of life in managing mosquitoes, has shifted steadily from the use of conventional
chemicalstowardsalternative botanicalinsecticidesthataretarget-specific,biodegradableandenvironmentallysafe.
Pyrethrins are natural plant compounds used in commercial vector control. They are usually formulated with
synergists to improve quality, increase efficacy, mitigate resistance and make them cost effective. This discovery of
insecticidal synergists initiated the use of insecticide synergist, Piperonylbutoxide(PBO), which is obtained from
Safrole a main component of sassafras. Ocimumkilimandscharicumof the family Lamiaceae, commonly known as
African Blue Basil and ‘okita’ in native Luo language, is a perennial, under shrub with simple ovate-oblong leaves.
Earlier findings showed that the plant consists of linalool, camphor and 1,8-cineole. Literature review revealed no
report available on the chemical composition of the essential oil and its economic importance fromKenya. In lightof
this observation, this article presents identified essential oil composition from the leaves
ofkilimandscharicumcollected from the Kipkaren in Nandi county(Kenya), as alternative recipe that can be used as
pyrethrum synergist. The essential oil was obtained by hydro-distillation of the leaves of kilimandscharicum, and
then analyzed by gas chromatography coupled with mass spectrometry (GC/MS). Seventeen constituents were
identified, most of which were mainly phenylpropane and their derivatives. Most of whose functional group is
methylenedioxyphenyl which form the binding site for the insecticide during the reaction of insecticide against
insects. The findings of this research could enable further exploration for large scale production and exploitation of
the biological synergists for commercial application; which could go along revitalizing agriculture and environment.
Biological products are biodegradable as opposed to convectional pyrethrum synergist, PBO currently being used by
the Pyrethrum Boardof Kenya. Further research to identify the active component of the seventeen constituents is
inevitable. | en_US |
dc.description.sponsorship | Chuka University | en_US |
dc.language.iso | en | en_US |
dc.publisher | Chuka University | en_US |
dc.subject | Ocimumkilimandscharicum | en_US |
dc.subject | Guerke | en_US |
dc.subject | Lamiaceae | en_US |
dc.subject | essential oil composition | en_US |
dc.subject | Synergists | en_US |
dc.title | CHEMICAL COMPOSITION OF THE ESSENTIAL OIL OF AFRICAN BLUE BASIL (Ocimum KilimandscharicumGuerke) AS A PYRETHRUMSYNERGIST | en_US |
dc.type | Article | en_US |