Bioprospection for Repellent Effect of Natural Volatiles from Ocimum suave Willd Growing in Dar es Salaam, Tanzania against Anopheles Mosquitoes
Journal Title: International Journal of TROPICAL DISEASE & Health - Year 2015, Vol 6, Issue 3
Abstract
Essential oil was extracted from Ocimum suave Willd leaves by water distillation and tested for repellency effectiveness against Anopheles gambiae adult mosquitoes. The percentage yield of the essential oil was 0.2%. Six concentrations of O. suave essential oil were applied on human skin of four volunteers, and the repellency effectiveness which was analyzed by PoloPlus (LeOra software version 1.0, 2002-2014), revealed promising RC50, RC75, RC90 and RC99 with their confidence limits as 0.1161 mg/cm2 (0.02067 - 0.1767 mg/cm2), 0.2823 mg/cm2 (0.22328 - 0.3654 mg/cm2), 0.4319 mg/cm2 (0.35226 - 0.58862 mg/cm2) and 0.98934 mg/cm2 (0.54731 - 0.99972 mg/cm2), respectively. O. suave essential oil exhibited high Anopheles mosquitos’ repellency effectiveness which merits further scientific attention for the development of natural repellents for the control of malaria and other mosquito borne diseases. These findings provides a scientific evidence and base for formulation for further mosquito repellency semi-field and field trials for the development of cheaper and affordable new mosquito repellent product(s) to meet human healthcare needs in the prevention and control of malaria and other mosquito transmitted infections.
Authors and Affiliations
Wilson Leonidas, Judith Kagondi Shipili, Josephat A. Saria, Yohana Lawi, Eliningaya J. Kweka, Frank Magogo, William N. Kisinza, Hamisi M. Malebo
Keywords
Related Articles
- EP ID EP343327
- DOI 10.9734/IJTDH/2015/14710
- Views 59
- Downloads 0
Lipid Profile Patterns of Overweight and Obese Primary Care Patients in Niger Delta Region, South-South Nigeria
Introduction: Overweight, obesity and their complications are major public health problems because of their effects on individuals, families and communities. The objective of this study was to describe the lipid profile...
The Prevalence of Malaria Infection among Patients Attending the Health Centre of the Federal University of Technology, Akure, Nigeria
Aim: This study determined the prevalence of malaria among patients having malaria symptoms that reported for malaria test at the Health Centre of the Federal University of Technology, Akure. Place and Duration of Study:...
Knowledge and Practices Related to Food Hygiene among Food Handlers in Sokoto, Nigeria
Introduction: Unsafe food poses global health threats, endangering everyone Vended foods are considered to be a public health hazard because the food handlers are often poor, have poor schooling and lack appreciation for...
An Original Study on Blaschkoid Pityriasis Rosea – One of the Rarest Atypical Variants of this Paraviral Exanthema
Background: Blaschko’s lines are believed to be originated from the migration of mosaic populations of epidermal cells and tissues. Pityriasis rosea (PR) is an exanthem which might be associated with human herpesvirus-7...
Detection and Species Identification of Malaria Parasites by Nested-PCR: Comparison with Light Microscopy and with SD BIOLINE Malaria Ag Test in Luanda, Angola
Background: Malaria is the infectious disease causing the highest morbidity and mortality in Angola. Existing tools for the diagnosis of malaria include microscopy, rapid diagnosis tests (RDTs) and molecular tools. Neste...