scholarly journals Phytochemical Screening and Antioxidant Activity of some Egyptian Medicinal Plants

2022 ◽  
Vol 4 (1) ◽  
pp. 14-20
Author(s):  
Heba sayed ◽  
mohammady issa ◽  
magda mahmoud ◽  
emad abdelkader ◽  
hamadi ismail
2020 ◽  
Vol 28 ◽  
pp. e00536
Author(s):  
Radwan S. Farag ◽  
Mohamed S. Abdel-Latif ◽  
Hanaa H. Abd El Baky ◽  
Layla S. Tawfeek

Author(s):  
Gboko Abiba Ouattara ◽  
Tiekpa Wawa Justine ◽  
Kamagaté Tidiane ◽  
Boni Ahoussi Pascal ◽  
Kabran Aka Faustin ◽  
...  

Anacardium occidentale and Vitellaria paradoxa are two medicinal plants traditionally used by Ivorian, particularly in the treatment of diabetes, arterial hypertension and diarrhea. The objective of this work was to evaluate the phytochemical constituents and the antioxidant activity of the stem barks of A. occidentale L. and V. paradoxa. The stem bark of both plants was used for the aqueous extraction. Major chemical groups were identified using the tube staining method followed by confirmation by thin layer chromatography (TLC). The antioxidant activity of the extracts was evaluated by DPPH method. The results of phytochemical screening of plant extracts revealed the presence of polyphenols, anthraquinones, tannins, sterols, terpenes and saponins. In addition, the evaluation of the antioxidant activity by spectrophotometry using the DPPH method showed that all extracts had significant and different antioxydant activity compared to the reference molecule (Vitamin C, IC50 = 0.80 ± 0.70 µg/mL) with respective IC50 of 0.42 ± 0.32 µg/mL for V. paradoxa and 0.87 ± 0.77 µg/mL for A. occidentale. V. paradoxa therefore has the best antioxydant activity. These results could explain the therapeutic virtues of A. occidentale and V. paradoxa in the treatment of various pathologies.


2019 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Pramita Laksitarahmi Isrianto ◽  
Putu Oky Ari Tania

One of the efforts to optimize the utilization of natural materials that is used them as medicinal plants, including Dlingu (Acorus calamus L.) and Garlic (Allium sativum) which have the potential as antioxidants. This study aims to determine the effectiveness of a combination extract of Acorus calamus L. (Dlingu) and Allium sativum (Garlic) on antioxidant activity. This research is an experimental research which is the test of antioxidant content and antioxidant activity test with 5 series of concentrations and 4 times of repetition. The research materials, namely dlingu stem and single clove garlic tubers were extracted, phytochemical screening was carried out and then antiradical free IC50 was determined. Based on the test results of the chemical extract of dligu and single clove garlic, the highest content was alkaloid 5.16%, tannin 4.05%, saponin 3.01%, and flavonoid 2.18%. The test results of the chemical antioxidant activity of extracts dligu and single clove garlic contain IC50 values of 17.062 ppm, including a very strong class of antioxidants.Keywords: antioxidant, Dlingu, Single Clove (Male) Garlic.


Author(s):  
Ezekwe Ahamefula S. ◽  
Ordu Kenneth S. ◽  
Oruamabo Ralphael S.

Phytochemical screening, GC-MS analysis and antioxidant activity of some medicinal plants were investigated using standard methods. Leaves of Gongronema latifolium, Petrocarpus mildbraedii, and Piper guineense plants were prepared properly and used in the entire study. Results of phytochemical screening for the plants revealed the presence of tannins, saponins, alkaloids, phenolic compounds, reducing sugars amongst others at different concentrations. Results of GC-MS analysis for G.latifolium showed a total of thirty-three compounds of which Cyclohexano, 2-l(methlaminomethyl)-trans had the highest retention time, squalene had the highest molecular weight and phytol had the highest peak area. GC-MS result for P.mildbraedii revealed a total of twenty-three of which Acatamide,2,2,2-trichloro- had the highest retention time, Erucic acid had the highest molecular weight whereas n-Hexadecanoic acid the highest peak area. Only ten compound were observed in P.guineense of  which Ethyl (3-hydroxyphenyl) carbamate had the highest retention time, Benzaminde, N-(4,5-dichloro-1,3-benzothiazol-2yl)-3,5-dimethoxy- had the highest molecular weight and Benzene, 1,2,3-trimethoxy-5-(2-propenyl)- has the highest peak area in P. guineense. The antioxidant activity of the plant extracts as assessed, followed the order P.guineense > G.latifolium> P. mildbraedii in comparative with ascorbic acid used as the control. The observed compounds become very important when the usefulness of these plants as medicinal plants are considered. They could as well be behind the antioxidant property of the plants in this study. This study has revealed the phytochemical screening, GC-MS analysis and antioxidant activity of some medicinal plants.


Author(s):  
Abba P. Obouayeba Obou C. Okou ◽  
Bognan J.A.A. Ackah Bi Tra L. Tra ◽  
Tanoh H. Kouakou Allico J.Djaman ◽  
Jean D. N guessan

Annona muricata and Corchorus olitorius are two medicinal plants whose leaves are widely used in Ivory Coast both in nutrition and for the treatment of various pathologies because of their phytochemical compositions. The objective of this study was to determine the phytochemicals and to assess the antioxidant property of the leaves of these two plants. The phytochemical study was carried out using tests for the identification and quantification of phytoconstituents. As for the study of antioxidant activity, it was carried out by measuring the anti-free radical activity either by ABTS or by DPPH. Qualitative phytochemical screening revealed the presence of flavonoids, polyphenols, saponins, sterols, catechetical tannins and terpenes. The quantitative phytochemical screening of the extracts showed that the content of flavonoids (329.10 ± 2.51 mg Eq quercetin/Kg) and that of polyphenols (82.09 ± 0.13 mg Eq gallic acid/g) of Annona muricata are higher than the content of flavonoids (178.45 ± 1.09 mg Eq quercetin/Kg) and that of polyphenols (67.98 ± 5.22 mg Eq gallic acid/g) of Corchorus olitorius. The results of the antioxidant activity by measurement of the ABTS radical shows that the aqueous extract of Annona muricata exhibits the best activity with an IC50 value of 1.79 ± 0.15 μM, while the aqueous extract of Corchorus olitorius records an IC50 value of 2.64 ± 0.05 μM. Similar results are observed with the measurement of DPPH. The various metabolites demonstrated have various therapeutic properties which may be involved in the treatment of diabetes. This would confirm the therapeutic use reported by the populations. However, the evaluation of the antimalarial, antibacterial and anti-inflammatory activities as well as the toxicity test of the aqueous extract of these plants would be necessary.


Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
M Setayesh ◽  
A Siahpoosh ◽  
A Ghasemi Pirbalouti ◽  
R Abdizadeh

2008 ◽  
Vol 7 (1) ◽  
Author(s):  
Bimo Budi Santoso

<strong><em>Flavanoid, steroid, and terpenoid contents of 20 Manokwari medicinal plants were analyzed.  The antioxidant activity, total phenolic contents and antitumor activity of 20 Manokwari medicinal plants were also evaluated. The result shows that 83% positif to flavanoid test, 59% positif to terpenoid test and only 25% positif steroid. Antioxidant activity and total phenolic contents evaluated using Ferric Thiocianate (FTC) and Folin-Ciocalteu methods respectively. Antioxidant activity and total phenolic contents of medicinal plants were extracted by the traditional method, boiling in water and also in 80% methanol. Twenty plants evaluated in both exstracts have significantly varies of antioxidant activities and phenolic contents,  A significant and linier correlation coefficient between the antioxidant activity and the total phenolic content was found in both aqueous (R<sup>2</sup>= 0,77) and methanol (R<sup>2</sup> = 0,85). Antitumor activity was tested using cell maurine P-388 and only 2 of medicinal plants are active to inhibit cell maurine P-388. Comparing extraction efficiency of the two methods, the methanol extracted phenolic compounds more efficiently, and antioxidant activity of the extract was higher.</em></strong>


2020 ◽  
Vol 5 (2) ◽  
pp. 250-257
Author(s):  
Nurul Fatimah ◽  
◽  
Reksi Sundu

Free radicals and reactive species are widely believed to contribute to the development of several diseases by causing oxidative stress and eventually oxidative. Vernonia amygdalina (Astereacea) is a small shrub or tree between 1 and 5m high growing throughout tropical Africa. Plants are generally known as bitter leaves is well cultivated and is a general market for merchandise in several countries. The purpose of this study was to determine the antioxidant activity of hexane fraction from ethanol extract od Frican leaves (Vernonia amygdalina Del.). The method used in this study was the DPPH (1,1-Diphenil-2-Picrylhydrazyl) method. The result of phytochemical screening showed that ethanolic extract of African leaves contained a composition of secondary metabolites of alkaloids, flavonoids, tannins, steroids/triterpenoids and saponins. The antioxidant activity of the extract of n-hexane fraction was classified as very weak with an IC50 value of 317.98 ppm.


2018 ◽  
Vol 14 (4) ◽  
pp. 382-390
Author(s):  
Muhammad Aslam Mirza ◽  
Kousar Yasmeen ◽  
Ayesha Fazal ◽  
Muhammad Aziz Choudhary ◽  
Zahoor Ahmed ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document