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October 11 2019


Ethnobotanical Survey of Medicinal Plants in Atakpamé, City of Plateau Region in Togo

Aim: Plants are a great source of active substances and are used to cure a lot of diseases. In order to know and list medicinal plants used by traditional therapists and herbalists from the town of Atakpamé, an ethnobotanical investigation has been conducted.

Methodology: It is a transversal and descriprtive study that has been carried out from 22th December 2018 to 16th March 2019.

Results: It has been conducted nearby 10 traditional therapists and 20 herbalists by direct interviews using a structured questionnaire. The traditional therapists were all men and the herbalists all women. This study has enabled to list 61 species belonging to 30 families grouped into 56 genera, used in the treatment of 30 affections and symptoms. The botanical families more represented were Euphorbiaceae with 8 species, Caesalpiniaceae and Apocynaceae with 5 species each. The most used organs in the recipes are leaves (44,26%). The decoction (47,54%) is the most used mode of preparation. The oral route (76,47%) is the most frequently way of administration. The most healed affections were malaria, infections and anemia with the same percentage of 16,76%. The majority of medicinal recipes are monospecifics.

Conclusion: The results of this study can be a source of information for scientific researches in phytochemistry and pharmacology.

Please read full article : - www.journalejmp.com

September 30 2019


Phytochemical Study and Biological Activities of Two Medicinal Plants used in Burkina Faso: Lannea velutina A. Rich (Anacardiaceae) and Ximenia americana L. (Olacaceae)

Background: Bacterial infections are at the origin of a number of serious pathologies, including meningitis, bronchopneumopathies, typhoid fever and especially diarrhea, which are still a real public health problem for the child population in developing countries. In most of these countries, people use medicinal plants for primary health care. The objective of this study was to determine the content of phenolic compounds, the antioxidant and antimicrobial activity of extracts from two plants used in traditional medicine in Burkina Faso, Lannea velutina and Ximenia americana.

Place and Duration of Study: Laboratory of Biochemistry and Applied Chemistry (LABIOCA).

Methods: The total phenolics and flavonoid content of the ethanolic extract extracts were determined by spectrometric assay. The DPPH and FRAP method were used to measure the antioxidant capacity of the extracts. The antibacterial potential was determined on five bacterial strains.

Results: The ethanolic extracts of Lannea velutina showed the best polyphenol content with 969.67±8.23 ​​mgGAE/g extract against 753.145917±66.31 mgGAE/g extract for Ximenia americana. On the DPPH radical Ximenia americana gave the best activity with a percentage inhibition of 62.32±0.17% compared to Lannea velutina. This species also gave the best reducing activity with a reducing capacity of 3.45±0.97 mmol EAA/10 g of extract. Shigella dysenteria and Staphylococcus aureus were susceptible to Lannea velutina and Ximenia americana with inhibition diameters greater than 8 mm.

Conclusion: These results showed that the extract has good antioxidant potential as well as antimicrobial activity. These extracts could be used to prevent damage from oxidative stress and infections.

Please read full article : -  www.journalajocs.com

September 16 2019


Effect of Alcoholic Extracts of Cymbopogon citratus upon the Control of Colletotrichum gloeosporioides in vitro and upon the Post-harvest Quality of Guavas

Aims: This work aimed at evaluating the effects of ethanolic and methanolic extracts of lemongrass upon the control in vitro of Colletotrichum gloeosporioides and upon the post-harvest quality of guavas “Paluma”.

Methodology: We analyzed the inhibition of mycelial growth and sporulation of the pathogen at different concentrations of the extracts (8%; 5%; 3%; 1.5% and 0.5%). In the post-harvest assay, the guavas were treated by immersion in distilled water, ethanolic and methanolic extracts (1%; 0.5% and 0.25%) and stored at 25ºC ± 2ºC for eight days. We evaluated mass loss, total soluble solids, total titratable acidity, ratio, reducing and non-reducing sugars, ascorbic acid and pH and the incidence of anthracnose.

Results: In the test in vitro, the pathogen growth inhibition was dose-dependent and the sporulation was completely inhibited upon higher concentrations of extract. At post-harvest, the fruits maintained their physicochemical characteristics, and the treatments were not efficient at retarding fruit ripening. Although the tested treatments inhibited the plant pathogen C. gloesporioides in vitro, they were not efficient at controlling the disease in vivo.

Conclusion: The extracts showed control in vitro of C. gloeosporioides at 8%. However, the extracts were not effective at controlling the disease after harvest.

Please read full article : - www.journalejmp.com
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