scholarly journals The Mosquito Repellent Activity of the Active Component of Air Freshener Gel from Java Citronella Oil (Cymbopogon winterianus)

2020 ◽  
Vol 2020 ◽  
pp. 1-5 ◽  
Author(s):  
Willy Tirza Eden ◽  
Dante Alighiri ◽  
Kasmadi Imam Supardi ◽  
Edy Cahyono

This study examines the active component of Cymbopogon winterianus (Java citronella) oil, as a green mosquito repellent, obtained through a steam distillation method. Java citronella oil, which contains citronellol, citronellal, and geraniol, was isolated by batch vacuum fractional distillation, and their effect was tested against the dengue fever (DF) vector, known as Aedes aegypti. Furthermore, air freshener gels were formulated with Java citronella oil, carrageenan, gum, sodium benzoate, ethylene glycol, polysorbate 20, sodium chloride, and distilled water, at varying concentrations. The results show that formula I has the best controlled release evaporation for citronellal, citronellol, and geraniol, as well as the best storage time of 16.82 days and 12.77 days for geraniol and citronellol, respectively. The most significant specific gravity (0.0136) was recorded in formula V, while gel formula I exhibited the highest level of instability at 35°C, with a syneresis value of 77.11% in t=72 h and pH 5.33. In addition, formula IV at 5°C demonstrated the highest syneresis (75.34%) in t=72 h, with pH 7.04, while a peak viscosity of 100,958 cP was recorded in formula IV. The repellent activity of each active component was measured based on the period of protection conferred against the bites of Aedes aegypti within one hour, and the results showed geraniol and citronellol, with respective activity of 78.00%±4.83 and 77.34%±3.57, as the most effective.

2020 ◽  
Vol 981 ◽  
pp. 253-257
Author(s):  
Hazrulrizawati Abd Hamid ◽  
Nishantini Silvarajoo ◽  
Nurulhusna Ab. Hamid

The mosquito Aedes aegypti is an epidemic vector of several diseases such as dengue fever and yellow fever. Several pesticides are used to control the mosquito population. Because of their frequent use, some mosquitoes have developed resistance. In the present study, we evaluated the synergistic mosquito-repellent activity of essential oils from Pelargonium radula, Syzgium aromaticum and Citrus aurantifolia against Aedes aegypti by using Y-tube olfactometer. The oils was subsequently analyzed by using GC–MS. These results clearly reveal that the essential oil of C. aurantifolia served as the most potent repellent agent against Aedes aegypti . The results indicate that three constituents; limonene (19.58%) followed by β–pinene (17.12%), geraniol (13.23%) which comprise a large proportion of the C. aurantifolia are likely responsible for the observed repellent activity.


2009 ◽  
Vol 372 (1-2) ◽  
pp. 105-111 ◽  
Author(s):  
Usawadee Sakulku ◽  
Onanong Nuchuchua ◽  
Napaporn Uawongyart ◽  
Satit Puttipipatkhachorn ◽  
Apinan Soottitantawat ◽  
...  

2020 ◽  
Vol 5 (3) ◽  
pp. 214-223
Author(s):  
Pooja Dubey ◽  
Pravin Shende

Objectives: Citronella oil is considered one of the effective mosquito- repellent oil and in cooperation of oil into nanosponges will help to prevent its evaporation and enhance its effect. Objective: The objective of the current research was to formulate and characterize CDI cross-linked nanosponges of citronella oil for controlled mosquito-repellent activity. Method: β-cyclodextrin-based nanosponges were prepared by polymer condensation method and encapsulated with citronella oil by the sonication method. A topical cream containing citronella oil-based nanosponges was formulated by the phase inversion temperature method. Particle size, zeta potential, encapsulation efficiency, stability, in vitro release, FTIR and DSC studies were used as characterization parameters. Results: The particle size of citronella oil encapsulated β-cyclodextrin-based nanosponges was 23.05±3.88 nm. The zeta potential of nanosponges was sufficiently high to prevent aggregation. In vitro studies revealed the controlled release of citronella oil from the nanosponges for 24 h. FTIR and DSC confirmed the interaction of the citronella oil with the nanosponges. Conclusion: Citronella oil encapsulated nanosponges in the topical formulation is an alternative to synthetic marketed creams for controlled mosquito-repellent activity.


2016 ◽  
Vol 11 (11) ◽  
pp. 1934578X1601101 ◽  
Author(s):  
Eugene K. Blythe ◽  
Nurhayat Tabanca ◽  
Betul Demirci ◽  
Maia Tsikolia ◽  
Jeffrey R. Bloomquist ◽  
...  

The essential oil (EO) of Lantana montevidensis (Spreng.) Briq. (L. sellowiana Link & Otto) was investigated for its chemical composition and mosquito repellent activity. The essential oil obtained by hydrodistillation of aerial plant parts was analyzed by GC-FID and GC-MS. The major constituents were β-elemene (22.0%), β-caryophyllene (20.1%), and germacrene D (9.4%). Sesquiterpene hydrocarbons were present in considerable quantities (78.9%) in the L. montevidensis EO, followed by oxygenated sesquiterpenes (8.9%), monoterpene hydrocarbons (7.7%), oxygenated monoterpenes (1.9%), diterpenes (1.2%) and other compounds (0.2%). The oil of L. montevidensis was repellent with a minimum effective dosage (MED) of 0.021 ± 0.013 mg/cm2 as compared with that of the positive control N,N-diethyl-3-methylbenzamide (DEET) with a MED of 0.006 ± 0.001 mg/cm2) against Aedes aegypti L. The major compound β-elemene was tested individually for its repellency and had a MED value of 0.23 ± 0.14 mg/cm2 (DEET was 0.008 ± 0.001 mg/cm2). This is the first report on the repellent activity of L. montevidensis EO and β-elemene using human-based in vivo assays against Ae. aegypti.


2011 ◽  
Vol 9 (1) ◽  
pp. 57-64 ◽  
Author(s):  
Mahesh Pal ◽  
Anil Kumar ◽  
Krishna Tewari

The chemical composition of the essential oil obtained from the leaves of Plectranthus incanus Link, with the yield of 0.6% (w/v), was analyzed by GC and GC/MS. A total of 16 constituents, representing 95.2% of the oil, were identified. The major components of the oil were fenchone (6.0%), piperitone oxide (32.4%), piperitenone (3.0%) and piperitenone oxide (41.5%). The repellent activity of the volatile oil at different concentrations was measured by the protection period against the bites of Anopheles stephensi and Culex fatigans. The tested oil had stronger repellent activity than citronella oil, which was used as a positive control. LC50 (30 min) for P. incanus oil against An. stephensi and C. fatigans were 23.8 and 19.6 ?l/L air, respectively, whereas LC50 of citronella oil were 31.7 and 31.0 ?l/L air. Thus, P. incanus may be regarded as a potential valuable source of chemicals that have strong mosquito repellent activity, and could be used for the preparation of mosquito repellent formulations.


2014 ◽  
Vol 625 ◽  
pp. 860-863 ◽  
Author(s):  
Mastura Abd Manaf ◽  
Junaidah Jai ◽  
Ana Najwa Mustapa ◽  
Rafeqah Raslan ◽  
Istikamah Subuki

Active compounds ofCymbopogon winterianius(Java Serai Wangi) which consists of citronella oil (CO), has been reported to has mosquito repellent compounds; citronellol, citronellal, and geraniol. Limitation on the use of natural mosquito repellent has driven this work to incorporate the CO in commercial water-based paint. In this work, the CO-paint was formulated and its ability to repel mosquito was determined. The optimum composition of CO was determined by three standard paint analyses which were volatile organic compound (VOC), viscosity and adhesion. The best composition of CO in paint was found to be 20% vol. where it able to repelAedes aegyptiwith 80% efficiency. It is envisioned that the formulated CO-paint is effectively function as mosquito-repellent thus as an alternative way to reduce the mosquito-borne diseases.


2020 ◽  
Vol 21 (8) ◽  
Author(s):  
Ni Luh Arpiwi ◽  
I Ketut MUksin ◽  
Ni Luh Kartini

Abstract. Arpiwi NL, Muksin IK, Kartini NL. 2020. Essential oil from Cymbopogon nardus and repellant activity against Aedes aegypti. Biodiversitas 21: 3873-3878. Cymbopogon nardus (L.) Rendle is an aromatic grass from the Poaceae family that produces essential oil mainly in the leaves. The essential oil from C. nardus is known as citronella oil has repellent activity. This research aimed to quantify the oil content of C. nardus leaves, to analyze the essential oil quality, to analyze the repellent activity of lotion with different concentrations of citronella oil against Aedes aegypti, and to examine the quality of formulated lotions. The oil was extracted from leaves using steam distillation, and the quality was examined according to the Indonesian National Standard. The citronella oil was formulated into a lotion with five concentrations (0, 2, 3, 4, 5% w/w). Repellent activity of the lotions against Ae. aegypti was tested using screened cage test method under laboratory conditions. Lotion quality was analyzed for pH, viscosity, homogeneity, and sensorial assessments. The result showed that the oil yield of C. nardus leaves was 0.9% w/w. The color of the oil was pale yellow, specific weight was 0.8819, the refraction index was 1.464, total geraniol was 72.71%, citronellal content was 49.14%, and solubility in 80% alcohol 1:2 was clear. The repellent activity of lotions with citronella oil was concentration-dependent, where a concentration of 5% gave the highest protection. The quality of formulated lotions met the standard and the lotions were nonirritant.


2012 ◽  
Vol 14 (1) ◽  
pp. 126
Author(s):  
Yekki Yasmin ◽  
Lenni Fitri ◽  
Betty Mauliya Bustam

This research is about effectivity analysis of two kinds of fungi i.e. Beauveria bassiana and Metharrizium anisopliae as Aedes aegyptilarvacide, it has been conducted at laboratories Zoology in Biology Department, Mathematics and Natural Sciences Faculty, Syiah KualaUniversity. Aims of this research were estimating maximum time storage of fungi powder as effective larvacide and the number of bacteriacolonies were found in water used for experiment. This research was used Completely Randomized Design (CRD). The experiments consistof two factors i.e kind and saving time of fungi. The result show that the longer the storage time of Beauveria bassiana the more ineffectiveit was as larvacide and the least fungi colonies were found. Metharrizium anisopliae on the other hand, the longer it was kept, the moreeffective it was as larvacide and the more fungi colonies were found.


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