scholarly journals COMPARATIVE ANALYSIS OF THE PHYTOCHEMICAL COMPOSITIONS OF LEAF, STEM-BARK AND ROOT OF AZADIRACHTA INDICA (NEEM)

2018 ◽  
Author(s):  
Nwali ON. ◽  
Idoko A. ◽  
Okolie JE ◽  
Ezeh E ◽  
Ugwudike PO ◽  
...  
Keyword(s):  
Azadirachta Indica ◽  
Room Temperature ◽  
Reducing Sugars ◽  
Stem Bark ◽  
Aqueous Extracts ◽  
Leaf Sample ◽  
Plant Parts ◽  
Physico Chemical ◽  
Antifungal Action ◽  
Different Parts

Plant chemicals abound in different parts of plants, in different compositions. Thus, the comparative screening of the leaf, stem-bark and root of Azadirachta Indica becomes imperative. The presence of nine phytochemicals which include; Alkaloids, Flavonoids, Saponins, Glycosides, Phenols, Steroids, Tannins, Reducing sugars and Anthraquinones, and the quantity of alkaloids, flavonoids, saponins, tannins and glycoside in the leaf, stem-bark and root of Azadirachta indica were investigated. The plant parts were collected from a plantation grown in Okpotegu Echara, Ikwo Local Government Area of Ebonyi State, Nigeria. Plant samples were  air dried at room temperature, ground into uniform powder, sieved, bottled and labeled, ready for physico – chemical analysis. Results of the investigation revealed that anthraquinones were beyond detection limits in all the plant parts tested in both ethanol and aqueous extracts. Alkaloids were not detectable in leaf, stem-bark and root samples of aqueous extract. Glycosides were not detectable in leaf sample of ethanol and aqueous extracts. Quantitatively, the phytochemical compositions of each part showed higher concentrations of Alkaloids in the leaf, stem-bark and root (11.63%, 4.93% and 3.79%), compared to flavonoids (2.19%, 2.72% and 0.92%), saponins (0.70%, 1.12% and 0.44%), tannins (0.33 mg/100, 0.50mg/100 and 0.17mg/100) and glycosides (0.23%, 0.27% and 0.19%), respectively. Obviously, except for the higher percentage (11.63%) of alkaloids in the leaf, the phytochemicals in the stem-bark are higher as shown by the results, which could support the reason that the bark is preferably chewed commonly together with the stem as chew stick for its germicidal and antifungal action.

scholarly journals Physicochemical, Druggable, ADMET Pharmacoinformatics and Therapeutic Potentials of Azadirachtin - a Prenol Lipid (Triterpenoid) from Seed Oil Extracts of Azadirachta indica A. Juss.

2021 ◽  
Vol 11 (5) ◽  
pp. 33-46
Author(s):  
T. Loganathan ◽  
A. Barathinivas ◽  
C. Soorya ◽  
S. Balamurugan ◽  
T. G. Nagajothi ◽  
...  
Keyword(s):  
Azadirachta Indica ◽  
Seed Oil ◽  
Stem Bark ◽  
Pharmacological Properties ◽  
Plant Parts ◽  
Plant Seeds ◽  
Neem Seed Oil ◽  
Oil Extract ◽  
Bioactive Secondary Metabolite ◽  
Different Parts

Azadirachtin (AZA) is the most abundant bioactive secondary metabolite (BASM) in neem seed oil extract (NSOE) of Azadirachta indica A. Juss. AZA is localised in different parts of the plant (seeds, fruits, flowers, leaves, stem, bark and root) however, with varying degree of concentration. It has been documented that maximum concentration of AZA is present to the tune of 48000 μg g-1 in the seeds. It has been established that the environmental conditions determines the overall content and composition of BASM in different parts of the plant. Neem plant parts are most commonly used as therapeutic agents in remote villages in India for its ethnomedicinal therapeutic potentials; however, its physicochemical, druggable and pharmacological properties inadequately described. In the present study an attempt has been made to evaluate the physicochemical, druggable and pharmacological properties of Azadirachtin in NSOE of A. indica from ADMET perspectives. Keywords: NEEM; Azadirachta indica; Azadirachtin; Pharmacoinformatics; ADMET; Drug-Likeness; Toxicology

Qualitative and Quantitative Phytochemical Screening of Azadirachta indica Juss. Plant Parts

2021 ◽  
Vol 9 (2) ◽  
pp. 122-127
Author(s):  
Sujata Khanal
Keyword(s):  
Secondary Metabolites ◽  
Azadirachta Indica ◽  
Wide Spectrum ◽  
Chemical Constituents ◽  
Gravimetric Method ◽  
Stem Bark ◽  
Plant Parts ◽  
Synthetic Chemicals ◽  
Active Chemical ◽  
Quantitative Screening

Azadirachta indica which is commonly known as neem plant has one of the most promising medicinal properties having a wide spectrum of biological activity. Fresh matured leaves, stem-bark and seeds of A. indica (neem) were collected, air dried and aqueous-extract was used to screen for some active chemical constituents. Phytochemicals of neem plant parts were extracted and screened both qualitatively and quantitatively. The screening of A. indica was carried out at Institute of Agriculture and Animal Science, Paklihawa Campus, Rupandehi in a quest to evaluate the phytochemicals. Among the qualitative tests done for the presence of secondary metabolites; alkaloids, saponins, terpenoids, flavonoids were found to present in all of the tested parts whereas steroids, polyphenols and tannins were present only in leaves and stem-bark. Glycosides and coumarins are absent in all of the tested parts. Quantitative screening was also done by using gravimetric method. Alkaloids were found in all the parts of A. indica with the highest amount of alkaloids were obtained in stem-bark (12.8%) and lowest in leaves (10.67%). Highest flavonoids percentage was revealed in leaves (13.8%) and lowest flavonoids in stem-bark (12.8%). Similarly, seeds (2.53%) contained saponins % while it was lowest in stem-bark (2.50 %). Terpenoids % were similar in both i.e. leaves and stem-bark (13.13%), whereas lowest in seeds (12.77%). More research on secondary metabolites will be helpful to the chemical industries to produce plant-based chemicals and minimize the environment degradation from different synthetic chemicals. Int. J. Appl. Sci. Biotechnol. Vol 9(2): 122-127.  

scholarly journals Therapeutic and Safety Evaluation of Combined Aqueous Extracts ofAzadirachta indicaandKhaya senegalensisin Chickens Experimentally Infected withEimeriaOocysts

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
J. G. Gotep ◽  
J. T. Tanko ◽  
G. E. Forcados ◽  
I. A. Muraina ◽  
N. Ozele ◽  
...  
Keyword(s):  
Azadirachta Indica ◽  
Broiler Chickens ◽  
Safety Evaluation ◽  
Serum Biochemistry ◽  
Stem Bark ◽  
Negative Control ◽  
Aqueous Extracts ◽  
Oxidative Stress Biomarkers ◽  
Treatment Groups ◽  
Dose Dependent Decrease

Coccidiosis is a disease of economic importance in poultry causing morbidity and mortality. Reports show thatAzadirachta indicaandKhaya senegalensishave been used individually in the treatment of avian coccidiosis. We thus investigated the efficacy and safety of the combined aqueous extracts of these plants for the treatment of experimentally induced coccidiosis in broiler chickens using oocyst count, oxidative stress biomarkers, serum biochemistry, histology, and haematological parameters. The phytochemical screening revealed the presence of tannins, saponins, cardiac glycosides, and steroids in both extracts. In addition, alkaloids and flavonoids were present inAzadirachta indica.There was significant (p<0.05) dose dependent decrease in oocyst count across the treatment groups with 400 mg/kg of the combined extract being the most efficacious dose. Immunomodulatory and erythropoietic activity was observed. There were decreased intestinal lesions and enhanced antioxidant activity across the treatment groups compared to the negative control. Administration of the combined extract did not cause damage to the liver as ALT, AST, and ALP levels were significantly reduced in the uninfected chickens treated with the extracts compared to control suggesting safety at the doses used. The combined aqueous extracts ofK. senegalensisstem bark andAzadirachta indicaleaves were ameliorative in chickens infected with coccidiosis.

scholarly journals The Effects of Plant Leaves Variants from The Philippines on Infective Oesophagustonum dentatum Larvae

2019 ◽  
Vol 1 (1) ◽  
pp. 9-18
Author(s):  
Maria Asuncion G. Beltran ◽  
◽  
Allan Robertson ◽  
Richard J. Martin ◽  
◽  
...  
Keyword(s):  
Azadirachta Indica ◽  
Room Temperature ◽  
Moringa Oleifera ◽  
Gliricidia Sepium ◽  
The Philippines ◽  
Ananas Comosus ◽  
Aqueous Extracts ◽  
Plant Leaves ◽  
Annona Squamosa ◽  
Chrysophyllum Cainito

Nine aqueous extracts of plant leaves from the Philippines were evaluated against Oesaphagustomum dentatum sensitive (ODSEns) larvae for their anthelmintic effects. The plant species evaluated were Ananas comosus, Chrysophyllum cainito,Gliricidia sepium, Annona squamosa, Moringa oleifera, Tinospora rumphii Boerl,Azadirachta indica, Trichantera gigantea and Leuacaena leucocephala. The leaves of the plants gathered from Camiling, Tarlac, Philippines, were dried under room temperature for 30 days and then ground. Aqueous extracts of these plant leaves were prepared using migration buffer. In vitro migration and inhibition assays were used to evaluate the anthelmintic activity against exsheathed third stage larvae of Oesophagustomum dentatum. The experiments were put in 24-well plates at room temperature with four replications per treatment using different concentrations of 1, 2.5, 5 and 10 mg/ml. About 120 larvae per well were deposited on a larval migration apparatus consisting of 20 μm nylon mesh filters and incubated 20 hours under different treatments and another 2 hours to allow the migration of active motile larvae. The evaluation criteria were based on the average numbers of inhibited larvae under the different treatments. The percentage inhibition were statistically analyzed using Two-Way ANOVA (P=≤.0001) of the Graph Pad Prizm software (V5 San Diego, Ca). The most effective leaves with their highest inhibition level were from Ananas comosus (pineapple, 86.50%), Gliricidia sepium (madre de cacao, 84.50%), Chrysophyllum cainito (star apple, 83.75%), Moringa oleifera (horseradish,58.75%), Annona squamosa (sweet sop, 56.00%), Tinospora rumphii Boerl ( \Makabuhay, 55.75%), and Azadirachta indica (Neem, 51.50%), whereby extremely significant (P˂0.001) effect against O. dentatum larvae. Two leaves extracts, from Trichantera gigantea and Leuacaena leucocephala have no significant effect on O. dentatum larvae. The larval migration assay allows initial studies on the anthelmintic effects of the herbs.

scholarly journals PHYTOPHARMACOLOGICAL REVIEW OF KNEMA ATTENUATA (HOOK F. AND THOMSON) WARB

2021 ◽  
pp. 1-3
Author(s):  
SUPRIYA RAJA H. ◽  
SREEKANTH G. B.
Keyword(s):  
Folk Medicine ◽  
Stem Bark ◽  
Taste Sensation ◽  
Pharmacological Activities ◽  
Therapeutic Implications ◽  
Plant Parts ◽  
Phytochemical Composition ◽  
Breathing Disorders ◽  
Chronic Fever ◽  
Different Parts

Knema attenuata, a member of Myristicaceae family and commonly known to world as ‘wild nutmeg’ is broadly used in folk medicine for treating ailments such as jaundice, chronic fever, inflammations, spleen disorders, breathing disorders and impaired taste sensation. This review article aims to compile all the updated information on the phytochemical and pharmacological activities of plant Knema attenuata. Studies indicate that different parts such as aril, seed and stem bark of the plant is rich in phenolics, flavonoids, tannins, steroids, terpenes, resins and glycolipids. Moreover, stem bark of Knema attenuata contains a lignan ‘attenuol’ with diverse pharmacological activities. In addition, different extracts of plant parts have been found to possess various pharmacological activities such as antioxidant, antifungal, larvicidal, analgesic, anti-inflammatory, antihyperlipidemic, and hepatoprotective activities. More research on phytochemical composition and therapeutic implications are recommended.

Antihyperlipidemic, Antioxidant and Cytotoxic Activities of Methanolic and Aqueous Extracts of Different Parts of Star Fruit

2016 ◽  
Vol 17 (10) ◽  
pp. 915-925 ◽  
Author(s):  
Sultan A.M. Saghir ◽  
Amirin Sadikun ◽  
Fouad S.R. Al-Suede ◽  
Amin M.S.A. Majid ◽  
Vikneswaran Murugaiyah
Keyword(s):  
Cytotoxic Activities ◽  
Aqueous Extracts ◽  
Star Fruit ◽  
Different Parts

15N NMR studies provide insights into physico-chemical properties of room-temperature ionic liquids

2021 ◽  
Author(s):  
Christoph Wiedemann ◽  
David Fushman ◽  
Frank Bordusa
Keyword(s):  
Ionic Liquids ◽  
Room Temperature ◽  
Chemical Properties ◽  
Room Temperature Ionic Liquids ◽  
15N Nmr ◽  
Nmr Studies ◽  
Physico Chemical ◽  
Alternative Solvents

Ionic liquids (ILs) have gained a lot of attention as alternative solvents in many fields of science in the last two decades. It is known that the type of anion...

scholarly journals Prospects of botanical pesticides in management of Iroko gall bug, Phytolyma fusca (Hemiptera, Psylloidea) under laboratory and field conditions

2021 ◽  
Vol 82 (1) ◽  
Author(s):  
Juliana Amaka Ugwu
Keyword(s):  
West Africa ◽  
Azadirachta Indica ◽  
Residual Effects ◽  
Aqueous Extracts ◽  
Plant Materials ◽  
Piper Guineense ◽  
Early Management ◽  
Ethanol Extracts ◽  
Milicia Excelsa ◽  
Contact Effects

Abstract Background Iroko gall bug, Phytolyma fusca Walker, is a major insect pest of Milicia excelsa (Iroko) seedling hampering its propagation in West Africa. Milicia excelsa is an indigenous forest timber tree in the tropical rain forest of West Africa with a very high value in international trade due to its wood quality. Sustainable management of P. fusca infestations on Iroko seedlings have not been achieved due to their cryptic nature and multivoltine generations. This study evaluated the residual and contact effects of crude ethanol and aqueous extracts of four plants (Azadirachta indica, Jatropha curcas, Piper guineense, and Aframomum melegueta) on adult P. fusca in the laboratory and field. Results All the extracts had residual effects and contact effects on adult insects in the laboratory at 75% and 100% concentrations of applications. Azadirachta indica, P. guineense, and A. melegueta gave 80–100% adult mortality at both concentrations in the laboratory; their efficacies were comparable to cypermethrin. The ethanol extracts of P. guineense and A. indica were more effective than other extracts in protecting the seedlings against Phytolyma infestations in the field. They significantly (p < 0.01) reduced infestation compared to other extracts and control. Ethanol extracts of the tested plant materials were more effective than their aqueous extracts both in the laboratory and field. Conclusion The results proved that P. guineense and A. indica extracts were very potent and promising in protecting Milicia excelsa seedlings against Phytolyma fusca infestations and they can be used in the early management of Phytolyma infestations in the field.

Cholinium-amino acid based ionic liquids: a new method of synthesis and physico-chemical characterization

2015 ◽  
Vol 17 (32) ◽  
pp. 20687-20698 ◽  
Author(s):  
Serena De Santis ◽  
Giancarlo Masci ◽  
Francesco Casciotta ◽  
Ruggero Caminiti ◽  
Eleonora Scarpellini ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Amino Acid ◽  
Room Temperature ◽  
Chemical Characterization ◽  
New Method ◽  
Room Temperature Ionic Liquids ◽  
Synthetic Method ◽  
Chemical Structures ◽  
Physico Chemical ◽  
Wide Range

Fourteen cholinium-amino acid based room temperature ionic liquids were prepared using a cleaner synthetic method. Chemicophysical properties were well correlated with the wide range of amino acid chemical structures.

Physico-Chemical Characterization of Alumina Sols Prepared From Aluminum Alcoxides

1986 ◽  
Vol 73 ◽  
Author(s):  
William L. Olson
Keyword(s):  
Room Temperature ◽  
Gel Filtration ◽  
Chemical Characterization ◽  
Process Conditions ◽  
Chemical Processing ◽  
Rotary Evaporation ◽  
Physico Chemical ◽  
Elution Curves ◽  
Alumina Sol

ABSTRACTAlumina sols derived from aluminum sec-butoxide (Yoldas) were characterized. The distribution of the polymer sizes within the sol, determined by gel filtration chromatography (GFC), was found to be dramatically affected by small changes in the chemical processing or preparative procedure. Aging the sol at room temperature for two weeks produced no significant change in the GFC elution curves of the alumina sol. Sols with a “milky” appearance were found to exhibit a wider distribution of polymers by GFC than transparent sols. Rotary evaporation of the sol followed by redissolution of the residue was found to change the polymer size distribution described by the gel filtration elution curves. These observations coupled with 27Al NMR spectroscopy and viscometry measurements were used to elucidate the effects of process conditions and aging on the molecular structure of the sol.

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