scholarly journals ISOLATION AND CHARACTERIZATION OF A FLAVONE FROM SUDANESE VITEX DONIANA (SWEET)(VERBENACEAE) AND BIOLOGICAL ACTIVITY OF THE METHANOLIC FRACTION

2016 ◽  
Vol 4 (6) ◽  
pp. 615-624
Author(s):  
AbdelKarim M ◽  
◽  
Salah H ◽  
Sufian A. ◽  
Sayed. A ◽  
...  
Keyword(s):  
Biological Activity ◽  
Isolation And Characterization ◽  
Vitex Doniana

Isolation and Characterization of Lycopene from Tomato and Its Biological Activity

2017 ◽  
pp. 313-329
Author(s):  
Yogesh K. Baravalia ◽  
Komal V. Pokar ◽  
Khyati C. Bhojani ◽  
Shailesh B. Gondaliya
Keyword(s):  
Biological Activity ◽  
Isolation And Characterization

Isolation and Characterization of Polyphenol Type-A Polymers from Cinnamon with Insulin-like Biological Activity

2004 ◽  
Vol 52 (1) ◽  
pp. 65-70 ◽  
Author(s):  
Richard A. Anderson ◽  
C. Leigh Broadhurst ◽  
Marilyn M. Polansky ◽  
Walter F. Schmidt ◽  
Alam Khan ◽  
...  
Keyword(s):  
Biological Activity ◽  
Type A ◽  
Isolation And Characterization

Human pituitary thyrotropin. Isolation and characterization of the hormone and its subunits

1977 ◽  
Vol 55 (7) ◽  
pp. 747-754 ◽  
Author(s):  
M. R. Sairam ◽  
Choh Hao Li
Keyword(s):  
Biological Activity ◽  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Disc Electrophoresis ◽  
Carbohydrate Content ◽  
Human Pituitary ◽  
Terminal Residue ◽  
Isolation And Characterization

Procedures have been described for the isolation of highly purified thyrotropin from frozen or acetone-preserved glands or from side fractions of somatotropin isolation and for the separation of its α and β subunits. The products have been characterized by terminal residue analyses, amino acid composition, carbohydrate content, disc electrophoresis, ultracentrifugation, and biological activity.

Isolation, characterization, and docking studies of (Z)-isopropyl 7-((1R, 2R, 3R, 5S)-2-((1E, 3Z)-3-fluoro-4-phenoxybuta-1, 3-dienyl)-3,5- dihydroxycyclopentyl) hept-5-enoate, an Impurity of Tafluprost

2020 ◽  
Vol 17 ◽  
Author(s):  
Rama Mohana Reddy Jaggavarapu ◽  
Venkatanarayana Muvvala ◽  
Venkata Reddy.G ◽  
Ravi Kumar Cheedarala
Keyword(s):  
Biological Activity ◽  
Docking Studies ◽  
Impurity Molecule ◽  
Isolation And Characterization ◽  
Enantiospecific Synthesis

Introduction: The origin, isolation, and characterization of (Z)-isopropyl 7-((1R, 2R, 3R, 5S)-2-((1E, 3Z)-3-fluoro4-phenoxybuta-1, 3-dienyl)-3, 5-dihydroxycyclopentyl) hept-5-enoate, an impurity found in the preparation of an antiglaucoma agent-Tafluprost has been described. Materials and Methods: Further, an enantiospecific synthesis of (Z)-isopropyl 7-((1R, 2R, 3R, 5S)-2-((1E, 3Z)-3-fluoro-4- phenoxybuta-1, 3-dienyl)-3, 5-dihydroxycyclopentyl) hept-5-enoate has been revealed using deoxofluorination as a key transformation of the strategy. Results and Discussions: Moreover, the impurity showing anti-glaucoma properties in docking studies with respect to bimatoprost. Conclusion: The extent of our work towards docking studies, the present impurity molecule showing almost the same biological activity with respect to Tafluprost.

scholarly journals Isolation and characterization of some flavonoids from the leaf of Tapinanthus globiferus growing on Vitex doniana

2020 ◽  
Vol 7 (17) ◽  
pp. 239-245
Author(s):  
H. Abubakar ◽  
A. M. Musa ◽  
M. I. Abdullahi ◽  
V. Mzozoyana ◽  
A. J. Yusuf
Keyword(s):  
Plant Material ◽  
Leaf Extract ◽  
Bioactive Compound ◽  
2D Nmr ◽  
Parasitic Plant ◽  
Chemical Test ◽  
Isolation And Characterization ◽  
Nmr Data ◽  
Vitex Doniana

Tapinanthus globiferus (A. Rich) Tiegh (Loranthacae) is a semi-parasitic plant growing on several plant species such as Vitex doniana. it is used in ethno-medicine for the treatment of fungal infection, itching, hypertension, ulcers, epilepsy, diabetes and cancer. The aim of this study was to isolate bioactive compound(s) from the leaf of T. globiferus. The powdered plant material was extracted with 90% methanol using maceration method and the resulting crude methanol leaf extract was partitioned into n-hexane, chloroform, ethylacetate and n-butanol fractions. The ethylacetate fraction was chromatographed on a silica gel and sephadex LH-20 column which led to the isolation of two flavonoids, and the identity of the compounds was determined on the basis of chemical test and NMR analysis. Based on the 1D and 2D NMR data, the compounds were 2-(3’4’-dihydroxyphenyl)-3,5,7-trihydroxy-4H-chromane-4-one (quercetin) and 2-(2,4-dihydroxyphenyl)-5,7-dihydroxy-3-(3-methylhexyl)-4H-chromen-4-one. This is the first report of isolation of these compounds from T. globiferus growing on Vitex doniana.

The isolation and characterization of 18 equine microsatellite loci, TKY272–TKY289

2000 ◽  
Vol 31 (2) ◽  
pp. 149-149 ◽  
Author(s):  
T Tozaki ◽  
H Kakoi ◽  
S Mashima ◽  
K Hirota ◽  
T Hasegawa ◽  
...  
Keyword(s):  
Microsatellite Loci ◽  
Isolation And Characterization
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