Chemical Composition and Antibacterial Activity of Essential Oil of Callistemon citrinus from Ethiopia

Aweke, Niguse; Yeshanew, Solomon

doi:10.9734/ejmp/2016/27987

Cited by 3 publications

(4 citation statements)

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“…GC-MS analysis of C. citrinus revealed ten different compounds, in which eucalyptol (40.44%) was the major constituent, followed by linalool, and α-Pinene. However, the same plant from Ethiopia contained 76.9% of eucalyptol and from Western Himalayas it contained only 9.8% eucalyptol [39,40]. These data clearly indicate that the level and type of constituents in EO extracted from this plant varies depending on where the plant was collected, and most likely the climate and ecology of that region playing a role.…”

Section: Plos Onementioning

confidence: 74%

Essential oil composition of Callistemon citrinus (Curtis) and its protective efficacy against Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)

Ramachandran

Baskar²,

Jayakumar³

2022

PLoS ONE

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Tribolium castaneum is one of the major pests of stored grains which causes extensive damages. To control this insect pest many synthetic chemical pesticides are used. However, continuous usage of synthetic fumigants causes pest resurgence, toxic residues, genetic resistance in pests, environmental contamination and health hazards etc., To avert these problems, essential oils are used as bio-fumigants to control the stored pests. They could act as best alternatives to synthetic fumigant in closed environment. Hence, the present study aimed to evaluate the pesticidal activity of Callistemon citrinus oil against Tribolium castaneum. GC-MS analysis of C. citrinus essential oil (EO) showed 10 compounds; among them, the major constituent was eucalyptol (1, 8-cineole) at 40.44%. The lethal concentration (LC50) values were 37.05 μL/L (adults) and 144.31 μL/L (larvae) at 24 and 48 hrs respectively. Exposure to C. citrinus EO significantly reduced the beetle fecundity, ovicidal activity, egg hatchability, larvae survival and emergence of adult. The effect of EO on enzymatic activity of T. castaneum adults was examined using Acetylcholinesterase, α-Carboxylesterase, β-Carboxylesterase, Glutathione-S-Transferase, Acid and Alkaline phosphatase assays. The results indicated that the activity of detoxification enzymes drastically varied when compared with control. This EO had toxicant effects on all stages of the life of T. castaneum.

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Section: Plos Onementioning

confidence: 74%

Essential oil composition of Callistemon citrinus (Curtis) and its protective efficacy against Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)

Ramachandran

Baskar²,

Jayakumar³

2022

PLoS ONE

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“…However, GC-MS analysis of EO from the same plant from Ethiopia revealed 15 different compounds, which also included eucalyptol as the major constituent (76.9%) [37]. In contrast, EO extracted from the same plant growing in Western Himalayas contained only 9.8% eucalyptol [38].…”

Section: Discussionmentioning

confidence: 97%

“…GC-MS analysis of C. citrinus revealed six different compounds, in which eucalyptol was the major constituent (40.44%), followed linalool (27.34%), and alfa- Pinene (17.46%). However, GC-MS analysis of EO from the same plant from Ethiopia revealed 15 different compounds, which also included eucalyptol as the major constituent (76.9%) [37]. In contrast, EO extracted from the same plant growing in Western Himalayas contained only 9.8% eucalyptol [38].…”

Section: Discussionmentioning

confidence: 99%

Essential oil composition ofCallistemon citrinus(Curtis) and its protective assessment towardsTribolium castaneum(Herbst) (Coleoptera: Tenebrionidae)

Ramachandran

Baskar²,

Hashem

et al. 2021

Preprint

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Essential oil (EO) was extracted from Callistemon citrinus leaves by hydro-distillation. The extracted oil was analysed by GC and Mass Spectroscopy. Analysis report showed that the major constituent of the essential oil was eucalyptol (40.44%). The EO of C. citrinus exhibited 100% fumigation toxicity (adult mortality) against adult and 95.8% larvicidal activity against Tribolium castaneum at 160 μL/L (12 hrs) and 320 μL/L (48 hrs), respectively. The effective concentration of 37.05 μL/L (adult) and 144.31 μL/L (larva) at 24 and 48 hrs respectively. A 100% repellent activity was observed at 20 μl for adult beetles and 93.3% for larvae of T. castaneum at 20 μl after 24 h. Exposure to C. citrinus EO significantly reduced beetle fecundity, ovicidal activity, egg hatching, larvae survival, and emergence of adult. The effect of EO on detoxification enzymes of T. castaneum adults was examined. Results indicated that the activity of detoxification enzymes drastically varied when compared with control. This EO had toxicant effects on all stages of the life of T. castaneum. Hence it may be used as fumigant instead of the use of using synthetic chemical fumigants.

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“…Moreover, Jazet et al (2009) reported the identified component of C. citrinus essential oil from Cameroon were 1,8-cineole (73.8%), α-pinene (16.3%) and α-terpineol (4.8%). Many studies elucidated that 1,8-cineole is the major compound in C. citrinus essential oil (Shrestha et al, 2015;Aweke and Yeshanew;2016 andAndola et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Eco-Friendly Control Strategies of Green Stink Bug, Nezara viridula L. (Hemiptera: Pentatomidae): Repellency and Toxicity Effects of Callistemon citrinus, Bottle Brush Essential Oil

El-Gendy

El-Shafiey

2018

Journal of Plant Protection and Pathology

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The bioactivity of Callistemon citrinus leaves essential oil against green stink bug, Nezara viridula was evaluated as alternative eco-friendly pesticide. The tested essential oil have high insecticidal activity to N. viridula adult where, the lethal concentrations of LC 10 , LC 25 and LC 50 were recorded (105.22, 536.80 and 3274.72 ppm), respectively. The repellent effects on N. viridula adult of the three tested concentrations were 48.01, 56.35 and 81.33 % after one hour of exposure time, respectively. The chemical composition analysis of bottle brush essential oil by GC/MS revealed 24 compounds represented 99.47% of the whole amount oil. The major constituent 1,8cineole represented (73.81%) followed by α pinene (13.13%), D-limonene (5.50%), β-pinene (2.49%) and α-Terpineol (1.10%) assumed 96.03% of the total oil composition, while the minor components were 3.97%. Treatment with all concentrations of C. citrinus essential oil exhibited some physiological defects that cleared in the reduction in total soluble protein levels and elevation in carbohydrate hydrolyzing enzymes, nonspecific estrases and acid & alkaline phosphatases activities. Moreover, the LC 50 inhibited acetyl cholinesterase activity in treated adults. Therefore the oil proved high potency in controlling the N. viridula.

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Chemical Composition and Antibacterial Activity of Essential Oil of Callistemon citrinus from Ethiopia

Cited by 3 publications

References 0 publications

Essential oil composition of Callistemon citrinus (Curtis) and its protective efficacy against Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)

Essential oil composition of Callistemon citrinus (Curtis) and its protective efficacy against Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)

Essential oil composition ofCallistemon citrinus(Curtis) and its protective assessment towardsTribolium castaneum(Herbst) (Coleoptera: Tenebrionidae)

Eco-Friendly Control Strategies of Green Stink Bug, Nezara viridula L. (Hemiptera: Pentatomidae): Repellency and Toxicity Effects of Callistemon citrinus, Bottle Brush Essential Oil

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