scholarly journals Acaricidal Activity of Petroleum Ether Extract of Leaves ofTetrastigma leucostaphylum(Dennst.) Alston againstRhipicephalus (Boophilus) annulatus

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
T. P. Adarsh Krishna ◽  
T. P. Ajeesh Krishna ◽  
N. D. Chithra ◽  
P. E. Deepa ◽  
U. Darsana ◽  
...  
Keyword(s):  
Petroleum Ether ◽  
Petroleum Ether Extract ◽  
Coconut Oil ◽  
Adult Tick ◽  
Immersion Test ◽  
Adult Mortality ◽  
Acaricidal Activity ◽  
Ether Extract ◽  
Boophilus Annulatus ◽  
Additive Action

The acaricidal activity of the petroleum ether extract of leaves ofTetrastigma leucostaphylum(Dennst.) Alston (family: Vitaceae) againstRhipicephalus (Boophilus) annulatuswas assessed using adult immersion test (AIT). The per cent of adult mortality, inhibition of fecundity, and blocking of hatching of eggs were studied at different concentrations. The extract at 10% concentration showed 88.96% inhibition of fecundity, 58.32% of adult tick mortality, and 50% inhibition of hatching. Peak mortality rate was observed after day 5 of treatment. Mortality of engorged female ticks, inhibition of fecundity, and hatching of eggs were concentration dependent. The LC50value of the extract againstR. (B.) annulatuswas 10.46%. The HPTLC profiling of the petroleum ether extract revealed the presence of at least seven polyvalent components. In the petroleum ether extract, nicotine was identified as one of the components up to a concentration of 5.4%. However, nicotine did not reveal any acaricidal activity up to 20000 ppm (2%). Coconut oil, used as diluent for dissolving the extract, did not reveal any acaricidal effects. The results are indicative of the involvement of synergistic or additive action of the bioactive components in the tick mortality and inhibition of the oviposition.

scholarly journals Ovicidal and Latent Effects of Pulicaria jaubertii (Asteraceae) Leaf Extracts on Aedes aegypti

2020 ◽  
Vol 36 (3) ◽  
pp. 161-166
Author(s):  
Ahmed Z. Shehata ◽  
Tarek M. El-Sheikh ◽  
Raafat M. Shaapan ◽  
Sobhy Abdel-Shafy ◽  
Abdullah D. Alanazi
Keyword(s):  
Aedes Aegypti ◽  
Petroleum Ether ◽  
Mosquito Control ◽  
Petroleum Ether Extract ◽  
Ethanolic Extract ◽  
Adult Mortality ◽  
Chloroform Extract ◽  
Ether Extract ◽  
Leaf Extracts ◽  
Latent Effects

ABSTRACT The control of Aedes aegypti with synthetic pesticides may result in adverse effects on wildlife and the environment. Bioactive plant extracts have been proposed as one of the alternatives to chemical pesticides used against mosquitoes. Here, we report on the ovicidal and latent effects of ethanolic, petroleum ether, and chloroform leaf extracts of Pulicaria jaubertii at 25 to 150 ppm each against the life stages of laboratory stain of Ae. aegypti. At 150 ppm, the ethanolic leaf extract resulted in 100% ovicidal activity, followed by petroleum ether extract (74%), and chloroform extract about 7% mortality. The ethanolic extract produced 100% larval and pupal mortality at both 75 and 50 ppm, while the petroleum ether extract produced 76.5 and 58.3%, respectively. The ethanolic extract recorded the highest percentage of adult mortality (72.7%) at the lowest concentration (25 ppm). At 25 and 50 ppm, the ethanolic extract resulted in 62.2 and 85.2% sterility index of Ae. aegypti females, respectively, as compared with the 0.1 and 3.5% sterility index caused by the chloroform extract at the same concentrations. In conclusion, P. jaubertii appears to have potential to be further evaluated as a mosquito control agent. Additional studies are needed on its mode of action, synergism with other products, and efficacy under actual field conditions.

Antioxidant lignans from petroleum ether extract of Schisandra chinensis

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
J Slanina ◽  
L Bøezinová ◽  
H Paulová ◽  
O Humpa
Keyword(s):  
Petroleum Ether ◽  
Petroleum Ether Extract ◽  
Schisandra Chinensis ◽  
Ether Extract

The struggle with rheumatism through Dracunculus vulgaris Schott: In the light of ethnobotanical information.

2020 ◽  
Vol 13 ◽  
Author(s):  
Fatma Tuğçe Gürağaç Dereli ◽  
Mert Ilhan ◽  
Esra Küpeli Akkol
Keyword(s):  
Petroleum Ether ◽  
Inflammatory Diseases ◽  
Petroleum Ether Extract ◽  
Major Constituent ◽  
Control Group ◽  
Ether Extract ◽  
Test Models ◽  
Mouse Ear ◽  
Gas Chromatography Mass Spectroscopy ◽  
Abdominal Constriction

Background: The fruits with the seeds of Dracunculus vulgaris Schott. (Araceae) are used against inflammatory diseases in Turkey. Objective: Present study was designed to justify this folkloric usage type of the plant. Therefore, the aim of this study is to investigate the anti-inflammatory activity of D. vulgaris. Methods: Petroleum ether, ethyl acetate and methanol extracts were prepared from the fruits, successively. Carrageenan-, serotonin-, and prostaglandin E2-induced hind paw edema; acetic acid–induced capillary permeability and 12-O-tetradecanoyl-phorbol-13-acetate–induced mouse ear edema models were used to assess the antiinflammatory activity of the extracts. The analgesic activity was experienced by using p-benzoquinone-induced abdominal constriction test. Results: The petroleum ether extract displayed the highest activities in all of the used test models compared with the control group. Therefore, the constituents of this extract were determined by using gas chromatography–mass spectroscopy (GC–MS). Linoleic acid was found to be major constituent of the petroleum ether extract of D. vulgaris. Conclusion: This study has provided some justification for the folkloric use of the plant.

scholarly journals The petroleum ether extraction of Brassica Rapa L. induces apoptosis of Lung adenocarcinoma cells via mitochondria-dependent pathway

2021 ◽  
Author(s):  
Xierenguli Halike ◽  
Jin-Yu Li ◽  
Pengfei Yuan ◽  
Kaimeiliya Yasheng ◽  
Min Chen ◽  
...  
Keyword(s):  
Petroleum Ether ◽  
Brassica Rapa ◽  
Biological Activities ◽  
Petroleum Ether Extract ◽  
Traditional Food ◽  
Ether Extract ◽  
Ether Extraction ◽  
Adenocarcinoma Cells ◽  
Lung Adenocarcinoma Cells ◽  
Dependent Pathway

Brassica rapa L. is one of the most popular traditional food with a variety of biological activities. In this study, the petroleum ether extract of B. rapa was separated by...

Identification of phytoconstituents of Tragia involucrata leaf extracts and evaluate their correlation with anti-inflammatory & antioxidant properties

2021 ◽  
Vol 20 ◽  
Author(s):  
Vinodhini Velu ◽  
Swagata Banerjee ◽  
Vidya Rajendran ◽  
Gaurav Gupta ◽  
Dinesh Kumar Chellappan ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Ethyl Acetate ◽  
Petroleum Ether ◽  
Ethyl Acetate Extract ◽  
Petroleum Ether Extract ◽  
Inflammatory Activity ◽  
Ether Extract ◽  
Membrane Stabilization ◽  
Leaf Extracts ◽  
Anti Inflammatory

Aims: The present investigation was aimed at exploring the phytoconstituents using Gas Chromatography Mass Spectroscopy and to evaluate antioxidant and anti-inflammatory properties of the leaf extracts. Materials and Methods: The extracts were obtained sequentially with petroleum ether, ethyl acetate and water using soxhlet apparatus. The anti-inflammatory property of the identified compounds using GC- MS spectroscopy was evaluated in silico. The antioxidant activity was performed by DPPH and H2O2 method whereas anti-inflammatory study was carried out by HRBC membrane stabilization method. Terpenoids were found to be major constituents in petroleum ether extract while, phenols and flavonoids were predominantly found in ethyl acetate extract. Results and Discussion: The GC-MS analysis of the extract revealed six major molecules including Squalene, 19β, 28- epoxyleanan-3-ol and 2-tu-Butyl-5-chloromethyl-3-methyl-4-oxoimidazolidine-1-carboxylic acid. The ethyl acetate extract showed a significant antioxidant activity (P<0.01) in both DPPH method (70.87 %) and H2O2 method (73.58%) at 200 µg mL-1 . Increased membrane stabilization of petroleum ether extract was observed in the in vitro anti-inflammatory activity study. A strong relationship between the terpenoid content and anti-inflammatory activity was obtained from the correlation (0.971) and docking study. Conclusion: These results justify T. involucrata to be a rich source of terpenoids with potent antiinflammatory property.

scholarly journals Evaluation of hair growth promoting activity of petroleum ether extract of Abrus precatorius Linn. on Wistar Albino rats

2019 ◽  
Vol 9 (2) ◽  
pp. 330-335
Author(s):  
Namrata Omhare ◽  
Pratibha Sahu ◽  
Shailee Gautam ◽  
Nidhi Jain
Keyword(s):  
Petroleum Ether ◽  
Hair Growth ◽  
Petroleum Ether Extract ◽  
Hair Follicles ◽  
Ether Extract ◽  
Standard Drug ◽  
Abrus Precatorius ◽  
Growth Initiation ◽  
Growth Promoting ◽  
Bald Patch

In present investigation was carried out to screening of hair growth promoting potentiality of petroleum ether extract of Abrus precatorius leaf. Preliminary chemical tests and TLC analysis revealed the presence flavonoids and saponins. Hair growth promoting activity of petroleum ether of Abrus precatorius was screened by considering different parameters which included time taken for covering bald patch, length of hair produced, percentage of hair follicles in anagen and telogen phases, time of hair growth initiation and completion and level of minerals in blood. The petroleum ether extract of Abrus precatorius showed a very good hair growth promoting activity at a dose of 300 mg/kg which was comparable to that of 2% minoxidil. After 30 days of treatment with test and standard drugs it was observed that, time taken for covering the bald patch, hair growth initiation and completion time and quantitative hair growth were found to be comparable to that of the standard drug. An increase in percentage of hair follicles turning from telogen phase to anagen phase was noted. The control treated group of animals showed poor hair growth for all the parameters. Keywords: Abrus precatorius Linn, Anagen, Catagen, Telogen, Minoxidil

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