scholarly journals Phytochemical screening and hemolytique activity of some leaves extracts of Lantana camara L.

2021 ◽  
Vol 8 (3) ◽  
pp. 1-9
Author(s):  
Fahima Talhi ◽  
Noureddine Gherraf ◽  
Amar Zellagui ◽  
Awatif Boumaza ◽  
Amira Meghlaoui

Abstract Medicinal plants have several therapeutic properties; they have been used for a long time to treat different diseases. Lantana camara L. has been widely used by man for healing these diseases. In this study, four leaves extracts of L. camara were subjected to preliminary phytochemical screening to determine the presence and/or the absence of phytochemical constituents; In addition, they were tested for hemolytic activity on human erythrocytes. This activity is performed using the UV-Vis spectrophotometer method at 520 nm and at five different concentrations (125 µg/ml, 250 µg/ml, 500 µg/ml, 750 µg/ml, and 1000 µg/ml). The phytochemical screening showed the presence of various phytochemical groups such as phenolic compounds, saponins, sterols, tannins, flavonoids, reducing compounds and the absence of alkaloids in the four extracts. These same extracts showed average hemolytic activity sequentially: chloroformic extract, petroleum ether extract, aqueous extract and then methanolic extract. This activity is dependent on the concentration of the extract.

2020 ◽  
Vol 45 (5) ◽  
Author(s):  
E.P Berezi ◽  
E. Mirinn ◽  
P.K. Berezi ◽  
A. E. Soroh

The Gas Chromatography– Flame lonization Detector (GC-FID) method was employed in this study to evaluate the phytochemical constituents of both the aqueous and petroleum ether extracts of phyllanthus amarus leaves. Preliminary phytochemical screening showed the presence of Alkaloids, Flavonoids Glycosides, Phenols, Saponins, and Tannins. Further analysis revealed a total concentration of Phenol as 82.95mg/100g (4.46%) in the aqueous extract, Tannins 722.77mg/100g(38.82%),Alkaloids was 466.82mg/100(25.07%) while in the petroleum ether extract, Flavonoids was 472.59mg/100g (29.50%), Saponins 12.60mg/100g (0.79%) and Glycosides 18.63mg/100g (1.16%). These results are suggestive that P.amarus is endowed with phytochemicals that contains therapeutic potencies which support its use as traditional remedies for the treatment of variety of ailments.


Author(s):  
Akm Abdullah ◽  
Sumit Das

Objective: To estimate the anthelmintic activity of hydro-alcoholic (methanol) and petroleum ether extract of Nyctanthes arbour-tristis (family-Nyctaginaceae) in conjugation with phytochemical screening.Methods: The hydro-alcoholic and petroleum ether extract of the whole root part of the plant Nyctanthes arbour-tristis (family-Nyctaginaceae) was prepared. And studies Phytochemical constitutes by the various standard method. The anthelmintic activity of the plant was performed by a different extract of plant material were tested against adult Indian earthworms pheretima posthuma as test worms, the bioassay determines the time of paralysis and time of death. Albendazole is used as a standard reference drug.Results: The present study shows the phytochemical analysis, the anthelmintic activity of the hydro-alcoholic and petroleum ether extract of the root of Nyctanthes arbour-tristis. Various phytochemical analyses revealed the presence of alkaloids, carbohydrates, flavonoids, tannin, phenol,, glycosides, saponins respectively. The anthelmintic activity of the plant extract showed significant results against all earthwormsConclusion: The study has shown that petroleum ether and methanolic extract of Nyctanthes arbortristis root have significantly determined anthelmintic activity. But the methanolic extract of Nyctanthes arbortristis root shown most significant anthelmintic activity as compared to petroleum ether extract.


2021 ◽  
Vol 25 (11) ◽  
pp. 11-19
Author(s):  
Chaitanya Darapureddy ◽  
K.R.S. Prasad ◽  
R.S. Ch Phani

The study is intended to evaluate the pharmacological activities, isolation and characterization of the bioactive phytochemical constituents from the crude leaf extract of Sterculia urens Roxb. The extraction of the phytochemicals from the leaves was carried on Soxhlet extraction apparatus using solvents like hexane, ethyl acetate, methanol and water. Pharmacological activities such as DPPH free radical scavenging assay (antioxidant), α-amylase inhibition assay (antidiabetic), albumin denaturation assay (antiinflammatory), blood clot lysis method (thrombolytic) and well diffusion method (antibacterial) of the crude extracts were evaluated and then the semi-preparative HPLC analysis followed by spectral studies was carried for the purification and identification of bioactive compounds. The methanolic extract showed high DPPH radical scavenging activity, α-amylase inhibition activity and albumin denaturation inhibition activity with IC50 values of 29.51±0.11, 146.85±0.18 and 149.91±0.19 μg/mL respectively. The % clot lysis of the methanolic extract was found higher than the other extracts and all the extracts have potential inhibition on the growth of the bacterial studied. From the leaf methanolic extract, 4 phenolic compounds (2,4-dihydroxybenzoic acid, methyl 4- hydroxycinnamate, p-coumaric acid and stercurensin) and 3 phenolic compounds (gossypetin, farrerol and quercetin 5,7,3',4'-tetramethyl ether) were isolated and characterised. Based on the results observed, it can be concluded that the leaf extracts of Sterculia urens Roxb are having rich phytochemical constituents with prominent pharmacological activities.


Author(s):  
María Cristina Furrianca ◽  
Marysol Alvear ◽  
Tomás Zambrano ◽  
Víctor Fajardo ◽  
Luis Salazar

Objective: To objective of this work was to perform phytochemical qualitative and quantitative analyzes of the main secondary metabolites in the root of Berberis microphylla.Methods: The extracts of B. microphylla root were tested through phytochemical screening and the quantification of the most important constituents was carried out using spectrophotometric and gravimetric techniques.Results: Phytochemical screening of both extracts showed the presence of alkaloids, flavonoids, glycosides, cardiac glycosides, saponins, terpenes,and tannins, which are pharmacologically important. Quantification of the major phytochemicals groups showed that the ethanolic extract contains 3.9% alkaloids, 0.46% flavonoids, 9.53% tannins, and 3.60% saponins. Similarly, the methanolic extract contains 6.61% alkaloids, 0.41% flavonoids, 7.40% tannins, and 1.43% saponins.Conclusion: This is the first time that the presence of tannins, flavonoids, and saponins in this plant has been reported. The medicinal properties of the root of B. microphylla may exist due to the presence secondary metabolites.


2014 ◽  
Vol 1 (2) ◽  
pp. 94-97
Author(s):  
Saradha M ◽  
Paulsamy S ◽  
Abinaya G

Aim of the study was to analyze the phytochemical constituents and estimation of total flavonoids and phenolic compounds of leaves and roots of the medicinal plant Lagascea mollis. Methanol extract of dried leaves and roots of L. mollis was prepared by using soxhlet apparatus. The extract prepared was tested forpreliminary qualitative phytochemical screening, followed by the quantitative estimation of total flavonoids and phenols by spectroscopy. The selected plant parts were found to contain alkaloids, flavonoids and terpenoids in both parts and saponin is present only in leaf. In quantitative estimation the reports revealedthe presence 0.017 and 0.013 mgRE/g extract and 458.91 and 704.50 mgGAE/g extract total flavonoids and phenolic compounds in leaf and root extract respectively. These major phytoconstituents present in this species may be accounted as factors for the medicinal importance of L. mollis.


2020 ◽  
Vol 981 ◽  
pp. 280-284
Author(s):  
Siti Aisyah Mohamad ◽  
Noor Suhana Adzahar ◽  
Muhammad Nadeem Akhtar ◽  
Seema Zareen ◽  
Thong Chuan Lee

Therapeutic properties of the medicinal plant are due to the presence of phytochemical constituents. The phytochemical constituents of Plumeria alba flower were investigated by phytochemical screening assays and gas chromatography-mass spectrometry (GC-MS). The phytochemical screening of hexane, dichloromethane, ethyl acetate, butanol, and aqueous extracts of P. alba flower showed it contains a various concentration of saponins, flavonoids, tannins, steroids, volatile oil and phenolic compounds. Several major chemical constituents that were identified is squalene, bis(2-ethylhexyl) phthalate, methyl (methyl 4-O-methyl-α-d-mannopyranoside) uronate and tricyclo [7.2.0.0(2,6)] undecan-5-ol, 2,6,10,10-tetramethyl- (isomer 2) by using GC-MS technique.


2019 ◽  
Vol 18 (2) ◽  
pp. 81-91
Author(s):  
C. Ouahchia ◽  
F. Hamaidi-Chergui ◽  
H.-S. Cherif ◽  
R. Hemma ◽  
I. Negab ◽  
...  

Inula viscosa (L.) is a medicinal plant that has been used for a long time for its many therapeutic properties, especially to treat pain and inflammation. The aim of this study was to evaluate the anti-inflammatory, analgesic, and antipyretic activities of methanolic extracts and decoctions of Inula viscosa leaves and flowers. The phenol content of the extracts was determined by spectrophotometric methods. The extracts were administered orally (400, 600, and 800 mg/kg) to mice and/or rats in the study of antiinflammatory (carrageenan-induced paw edema test), analgesic (acetic acid-induced writhes test), and antipyretic (Brewer’s yeast-induced pyrexia method) activities. The highest phenolic content was found in leaf methanolic extract. Methanolic extracts and decoctions of leaves and flowers showed significant decrease in mice paw edema after 4 h (P < 0.01; P < 0.001), and an appreciable analgesic effect at the tested doses with a maximum of writhing inhibition observed with leaf methanolic extract at the dose of 800 mg/kg (93.39%; P < 0.001). The rectal temperature of the rats decreased significantly (P < 0.01; P < 0.001) after 4 h in groups treated with leaves and flowers extracts at the doses of 600 and 800 mg/kg. The obtained results confirm the traditional uses of Inula viscosa.


Author(s):  
Swarnakumari S ◽  
Sasikala M ◽  
Mohan S ◽  
Divyanand Maharaj U ◽  
Kavipriya G

Objective: To explore physiochemical and phytochemical standardization of leaves of Amaranthus viridis and Amaranthus spinosus. Method: As per WHO guidelines, physical standardization parameters with various solvents system were evaluated. The preliminary phytochemical screenings were adopted for disclosing the existence of phytochemicals in the discrete extracts. Thin layer chromatography and HPTLC were employed for methanolic extract of leaves of Amaranthus viridis and Amaranthus spinosus. Result: Preliminary phytochemical screening with various extracts reveals phytoconstituents. HPTLC fingerprint were executed for leaves of Amaranthus viridis and Amaranthus spinosus using selected solvent system. HPTLC analysis implies the presence of phenolic compounds and flavonoids in both the plant Amaranthus viridis and Amaranthus spinosus. Conclusion: Quercetin and Gallic acid was raise to be more in Amaranthus viridis compared to Amaranthus spinosus, however rutin was reported only in Amaranthus spinosus. The outcome of the research leads for isolation, purification and utilization in herbal industries.


2021 ◽  
pp. 147-152
Author(s):  
Laila Ben Ramadan ◽  
Abdurzag Zwawi ◽  
Mohamed Salem ◽  
Abdurzag Auzi ◽  
Ahmed El Marghani

Bacterial resistance develops due to overuse of antibiotics in addition to the adverse effects of these chemicals. This urges the scientists to exchange these antibiotics with alternatives from natural products. The study aimed to evaluate the antimicrobial efficiency of Arum cyrenicum Hruby against a number of medically important pathogenic bacteria. A. cyreniacum corms extracted with petroleum ether, chloroform and methanol, and tested for antimicrobial activity against Escherichia coli BTC3, Salmonella typhi BTC10, Pseudomonas aeruginosa BTC4, and Staphylococcus aureus BTC15. A considerable bactericidal efficiency of petroleum ether extract of A. cyrenaicum corms were specifically against gram-positive bacteria, Staphylococcus aureus BTC15 at (100 mg/ml) petroleum ether and bacteriostatic at (50 mg/ml) of petroleum Ether extract. Whereas, the methanolic extract of A. cyrenaicum corms had bactricidal effect against gram-negative bacteria, Pseudomonas auregenosa BTC4 at (100mg/ml) of methanolic extract. Herby our results indicate that petroleum ether and methanolic extracts of A. cyrenaicum possess significant antibacterial properties. Keywords: Arum cyrenicum, Efficiency, Antibacterial


Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 418
Author(s):  
Htoo Tint San ◽  
Nutputsorn Chatsumpun ◽  
Thaweesak Juengwatanatrakul ◽  
Natapol Pornputtapong ◽  
Kittisak Likhitwitayawuid ◽  
...  

Four new phenanthrene derivatives, gastrobellinols A-D (1–4), were isolated from the methanolic extract of Gastrochilus bellinus (Rchb.f.) Kuntze, along with eleven known phenolic compounds including agrostophyllin (5), agrostophyllidin (6), coniferyl aldehyde (7), 4-hydroxybenzaldehyde (8), agrostophyllone (9), gigantol (10), 4-(methoxylmethyl)phenol (11), syringaldehyde (12), 1-(4′-hydroxybenzyl)-imbricartin (13), 6-methoxycoelonin (14), and imbricatin (15). Their structures were determined by spectroscopic methods. Each isolate was evaluated for α-glucosidase inhibitory activity. Compounds 1, 2, 3, 7, 9, 13, and 15 showed higher activity than the drug acarbose. Gastrobellinol C (3) exhibited the strongest α-glucosidase inhibition with an IC50 value of 45.92 μM. A kinetic study of 3 showed competitive inhibition on the α-glucosidase enzyme. This is the first report on the phytochemical constituents and α-glucosidase inhibitory activity of G. bellinus.


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