scholarly journals Phytochemical Analysis and Toxicity Evaluation of Acetone, Aqueous and Methanolic Leaf Extracts of Agapanthus praecox Willd

2018 ◽  
Vol 7 (5) ◽  
Author(s):  
Afolayan AJ
Keyword(s):  
Phytochemical Analysis ◽  
Toxicity Evaluation ◽  
Leaf Extracts ◽  
Agapanthus Praecox

Phytochemical analysis and salivary amylase inhibition activities of Carica papaya leaf and Garcinia mangostana pericarp extracts and partially purified fractions

2017 ◽  
Vol 6 (1) ◽  
pp. 34
Author(s):  
Michael Russelle Alvarez ◽  
Paolo Robert Bueno ◽  
Raymond Oliver Cruz ◽  
Richard Macapulay ◽  
Francis Jayson Vallesfin ◽  
...  
Keyword(s):  
Crude Extract ◽  
Carica Papaya ◽  
Uv Light ◽  
Digestive Enzyme ◽  
Phytochemical Analysis ◽  
Phytochemical Screening ◽  
Salivary Amylase ◽  
Garcinia Mangostana ◽  
Leaf Extracts

Plant-derived digestive enzyme inhibitors particularly those targeted to carbohydrate metabolism has been the focus of recent studies as natural supplements for weight control and diabetes. The present study explores the salivary amylase inhibition activity of Garcinia mangostana (Linn.) pericarp extracts and Carica papaya (Linn.) leaf extracts and fractions, as well as perform phytochemical screening and quantification, and thin layer – and high performance liquid chromatographic profiling. ­Results show that crude extracts and purified fractions were able to inhibit salivary amylase, with C. papaya fraction 1 being the most active at 30.89% inhibition. Phytochemical screening of all extracts tested ­positive for tannins, glycosides, phenolics, flavonoids and alkaloids. Quantification of phenolics showed that extracts contained high levels of phenolics, with C. papaya crude extract having the highest content with 219.0±12.7 mg GAE/g extract followed by G. mangostana crude extract with 247.1±18.0 mg GAE/g extract. Quantification of total flavonoids also showed C. papaya crude extract to contain the highest content with 55.12±0.679 mg QE/g extract. All extracts contained negligible alkaloid content, though. HPLC and TLC profiling showed several peaks and bands, when viewed in 210 nm and UV light, respectively. These results demonstrate in vitro the salivary amylase inhibitory activity of both plants and their potential as antidiabetic drug candidates; however, further studies need to be done, like isolation and structure elucidation of active components and toxicity assays. Keywords: Amylase inhibition, phytochemical quantification, Carica papaya, Garcinia mangostana

Phytochemical evaluation of leaf extracts of Naringi crenulata (roxb.) Nicolson

2016 ◽  
Vol 5 (11) ◽  
pp. 5110
Author(s):  
Sartaj Ahmad Allayie ◽  
Mushtaq Ahmed Parray* ◽  
Bilal Ahmad Bhat ◽  
S. Hemalatha
Keyword(s):  
Quantitative Analysis ◽  
Solvent System ◽  
Great Promise ◽  
Phytochemical Analysis ◽  
Bioactive Constituents ◽  
Leaf Extracts ◽  
Traditional Medicines ◽  
The People ◽  
Wide Range ◽  
Rf Values

The use of traditional medicines holds a great promise as an easily available source as effective medicinal agents to cure a wide range of ailments among the people particularly in tropical developing countries like India. The present study investigates the qualitative and quantitative analysis of the major bioactive constituents of N. crenulata leaf extracts. The extractive values of aqueous, acetone and chloroform extracts were found to be 11.34, 4.24 and 6.06 respectively. Qualitative phytochemical analysis of these three solvent extracts confirm the presence of Alkaloids, Saponins, Flavonoids and Phenolic compounds in all the three extracts; however, these phytochemicals were more significant in aqueous extract. Quantitative analysis was carried out using TLC method by different solvent system. Amongst various solvent systems, Butanol: acetic acid: water (9: 0.9: 0.1 v/v/v) shows maximum resolution and number of spots produced at long UV (365 nm) and under iodine vapours. The TLC chromatograms constituted different coloured phytochemical compounds with different Rf values. It can be conveniently used to evaluate the quality of different area samples. This indicates that the leaves can be useful for treating different diseases because the therapeutic activity of a plant is due to the presence of particular class of compounds and thus can serve as potential sources of useful drugs in future.

scholarly journals The Phytochemical Analysis of Vinca L. Species Leaf Extracts Is Correlated with the Antioxidant, Antibacterial, and Antitumor Effects

Molecules ◽  
2021 ◽  
Vol 26 (10) ◽  
pp. 3040
Author(s):  
Alexandra Ciorîță ◽  
Cezara Zăgrean-Tuza ◽  
Augustin C. Moț ◽  
Rahela Carpa ◽  
Marcel Pârvu
Keyword(s):  
Bacterial Infections ◽  
Inhibitory Effect ◽  
Total Phenolic ◽  
Phytochemical Analysis ◽  
Leaf Extracts ◽  
Antitumor Effects ◽  
Cytotoxic Effects ◽  
E Coli ◽  
Lactate Dehydrogenase Release ◽  
Nitric Oxide Concentration

The phytochemical analysis of Vinca minor, V. herbacea, V. major, and V. major var. variegata leaf extracts showed species-dependent antioxidant, antibacterial, and cytotoxic effects correlated with the identified phytoconstituents. Vincamine was present in V. minor, V. major, and V. major var. variegata, while V. minor had the richest alkaloid content, followed by V. herbacea. V. major var. variegata was richest in flavonoids and the highest total phenolic content was found in V. herbacea which also had elevated levels of rutin. Consequently, V. herbacea had the highest antioxidant activity followed by V. major var. variegata. Whereas, the lowest one was of V. major. The V. minor extract showed the most efficient inhibitory effect against both Staphylococcus aureus and E. coli. On the other hand, V. herbacea had a good anti-bacterial potential only against S. aureus, which was most affected at morphological levels, as indicated by scanning electron microscopy. The Vinca extracts acted in a dose-depended manner against HaCaT keratinocytes and A375 melanoma cells and moreover, with effects on the ultrastructure, nitric oxide concentration, and lactate dehydrogenase release. Therefore, the Vinca species could be exploited further for the development of alternative treatments in bacterial infections or as anticancer adjuvants.

scholarly journals Phytochemical Screening and in vitro Antioxidant Properties of Methanol and Aqueous Leaf Extracts of Geophila obvallata

2018 ◽  
pp. 1-11
Author(s):  
Iserhienrhien Lucky Osafanme ◽  
Okolie Paulinus Ngozi
Keyword(s):  
Aqueous Extract ◽  
Methanol Extract ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Scientific Basis ◽  
Phytochemical Analysis ◽  
Leaf Extracts ◽  
Reducing Ability

Aim: This study investigated the phytochemical constituents and in vitro antioxidant properties of methanol and aqueous leaf extracts of Geophila obvallata using standard methods. Materials and Methods: The in vitro antioxidant assays carried out were 1, 1‐diphenyl‐2‐picrylhydrazyl (DPPH) radical scavenging ability, Nitric oxide (NO•) radical scavenging activity assay, 2, 2'-azino-bis (3-ethylbenzthiazoline-6-sulphonic acid) (ABTS•+) radical cation scavenging assay, ferric reducing properties and hydroxyl radical scavenging assays. Results: Phytochemical analysis revealed the presence of alkaloids, flavonoids, phenolic compounds, steroids, saponins, terpernoids and cardiac glycosides in both extracts. Relative to the aqueous extract, the methanol extract contained a higher amount of the secondary metabolites. However, both extracts exhibited appreciable and dose-dependent capacities for quenching DPPH, ABTS•+ and NO• free radicals, and potent ferric reducing ability to levels comparable to those of ascorbic acid. The crude methanol extract showed significantly increased (P<0.05) antioxidant activity than the aqueous extract. Conclusion: It was concluded that the extract possesses strong antioxidant properties due to its content of phytochemicals, and provides scientific basis for its ethno medicinal applications.

scholarly journals DETECTION OF BIOACTIVE FRACTIONS OF JUSTICIA ADHATODA L. LEAVES

2013 ◽  
Vol 3 ◽  
pp. 388
Author(s):  
Faiza Rasheed ◽  
Keyword(s):  
Crude Oil ◽  
Metal Ions ◽  
Dietary Fiber ◽  
Total Alkaloid ◽  
Antioxidant Activities ◽  
Phytochemical Analysis ◽  
Leaf Extracts ◽  
Essential Metal ◽  
Justicia Adhatoda

In vitro antibacterial and antioxidant activities of various leaf extracts of Justicia adhatoda L. (locally known as Bhaikar) were assessed. The leaves were also subjected to various phytochemical analysis. Results revealed that leaves of J. adhatoda L. contain significant amount of total alkaloid, phenols flavonoid, saponins, tannins , protein, crude oil, dietary fiber, essential and non essential metal ions. The methanol, ethanol, butanol, chloroform and n-hexane leaf extracts of J

scholarly journals Histopathological Studies on the Effects of Chloroform and Methanolic Extracts of Ilex kudingcha in Trypanosoma brucei Infected Albino Wistar Rats

2018 ◽  
Vol 04 ◽  
pp. 50
Author(s):  
Olajoju. T. Soniran ◽  
Kalu. K. Ngele ◽  
Christopher. O. Alisa ◽  
Damilola. A. Omoboyowa ◽  
Nnabude. H. Agu ◽  
...  
Keyword(s):  
Trypanosoma Brucei ◽  
Wistar Rats ◽  
Methanolic Extract ◽  
Phytochemical Analysis ◽  
Diminazene Aceturate ◽  
Leaf Extracts ◽  
Standard Drug ◽  
Phytochemical Study ◽  
Reference Drug ◽  
Histopathological Studies

Histopathological studies of the effects of chloroform and methanolic leaf extracts of Ilex kudingcha in Trypanosoma brucei infected albino wistar rats were investigated. The toxicity and phytochemical study were also carried out using standard protocol. T. brucei infected animals were administered orally with 200 and 400 mg/kg b.w. of the extracts and 3.5 mg/kg b.w. of the standard drug (diminazene aceturate). Results on acute toxicity studies (LD50) revealed no sign of lethality up to the dose of 5,000 mg/kg body weight but the liver and kidney histology of infected animals treated with 5,000 mg/kg b.w. of I. kudingcha extracts were observed to be hepatotoxic and nephrotoxic. The methanol extracts showed appreciably high in vivo anti-trypanosomal activities compared to the reference drug. Histological examination of the organs revealed serious pathological lesions in the liver of the infected animals without treatment (negative control). In the positive control animals (infected animals administered standard drug), mild multifocal aggregate of inflammatory leucocytes was observed. In the other experimental animals, no pathological lesion was observed in the liver, kidney, brain, and heart of infected animals treated with the methanolic extract and combined methanol and chloroform extracts. The effectiveness of the methanolic extract at reducing the lesions caused by the parasite is the same compared with the standard drug. Phytochemical analysis of the plant extracts showed that methanol extract contained appreciable high levels of alkaloids, saponin, tannins, phenol, and glycoside while flavonoid was not detected. Hence, the curative properties of methanolic extract of I. kudingcha as observed in the organs indicate its anti-trypanosomal properties but it should be consumed at minimal doses.

scholarly journals The Efficacy of Psidium guajava Linn Leaf Extractsfrom Selangor Region Against Gram-Positive and Gram-Negative Bacteria

2018 ◽  
Vol 54 (4) ◽  
pp. 294
Author(s):  
S Zuhaira ◽  
Noorhaniz Mohd Nizam ◽  
PM Ridzuan
Keyword(s):  
Methanol Extract ◽  
Psidium Guajava ◽  
Diffusion Method ◽  
Future Research ◽  
Phytochemical Analysis ◽  
Gram Negative Bacteria ◽  
Leaf Extracts ◽  
Gram Positive ◽  
Gram Negative ◽  
Freeze Dried

Antibiotic is a type of medication that helps in fighting bacterial infection. Treating bacterial infections in clinical setting become more complicated and costly due to drug resistance. This study was conducted to determine the antibacterial potential of Psidium guajava Linn leaf extracts against Gram-positive and Gram-negative bacteria. P. guajava Linn leaf was obtained from Research Orchards at University Putra Malaysia (UPM). Leaves were extracted using three types of extracts; hot, cold and methanol extract. Freeze dried was used in this study and temperature was set at -104°C for 24 hours. Antibacterial testing was determined using disc diffusion and well diffusion method. Antibacterial activity was evaluated by measuring the inhibitory zone of the tested bacteria. Phytochemical analysis was conducted by adding few drop of diluted NaOH (Sodium Hydroxide) solution to detect the active flavanoid from leaves extract. Antimicrobial activity showed all extracts were effective against Gram-positive and Gram-negative bacteria. Phytochemical analysis of P. guajava Linn leaf extracts showed the methanol extract indicating the presence of tannins, phenols, flavonoids, terpenoids, glycosides and saponins. Results showed that P. guajava Linn leaf was effective against Gram-positive and Gram-negative bacteria, and pythochemical analysis also exhibited a few active compounds that were determined. P. guajava Linn leaf had potential natural product that may be used for further analysis in the future research.

scholarly journals PRELIMINARY SCREENING OF PHYTOCHEMICAL CONSTITUENTS, ANTIOXIDANT, AND ANTI-BACTERIAL ACTIVITIES IN THE METHANOLIC LEAF EXTRACT OF MELIOSMA SIMPLICIFOLIA (L.)

2021 ◽  
pp. 100-104
Author(s):  
PAVITHRA S ◽  
SEKAR T
Keyword(s):  
Leaf Extract ◽  
Methanol Extract ◽  
Antioxidant Activities ◽  
Reducing Power ◽  
Hot Water ◽  
Phytochemical Analysis ◽  
Scavenging Activity ◽  
Leaf Extracts ◽  
Ms Analysis ◽  
Dpph Scavenging

Objective: In the present study is investigated of phytochemicals and antioxidant activities of the leaf extracts from Meliosma simplicifolia (L.). Methods: The seaweed sample was subjected to extraction with solvents of different polarities (hot water, methanol, acetone, chloroform, and petroleum ether) and screened for phytochemicals according to standard methods. The ability of the plant extract to act as hydrogen/electrons donor or scavenger of radicals was determined by in vitro antioxidant assays using 2,2-diphenyl-2-picryl-hydrazyl free radical (DPPH) scavenging, reducing power assay, and superoxide radical (O2•) scavenging activity. The ICPMS and GC-MS analysis of the methanol leaf extract of M. simplicifolia was revealed the presence of antibacterial. Results: Phytochemical analysis revealed the presence of Preliminary metabolites Quantitative studies of estimated phenol, flavonoid and tannin, as for the methanol extract of stem showed the highest content of phenolic compounds (40.71±0.94 GAE mg/100). Antioxidant activities were concluded the estimation M. simplicifolia leaf for as followed the studies. In leaf the highest DPPH scavenging activity (132.3 μg/ml), ICP-MS analysis of the leaf extract showed the presence minerals such as Mg, Fe, Cu, Na, and Zn in excess. The leaf extract of the plant was also tested for its antibacterial activity and results confirmed that it has potential activity. Conclusion: The preliminary studies in the methanol extract of the leaf of M. simplicifolia are suggestive of the antibacterial potentials of the methanol extract of leaves of M. simplicifolia.

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