Search

Your search keyword '"Shahida Shujaat"' showing total 3 results
Start Over Author "Shahida Shujaat" Publisher informa uk limited
3 results on '"Shahida Shujaat"'

1. Emodinol, ß-Glucuronidase Inhibiting Triterpene fromPaeonia Emodi

Author

Naheed Riaz, Shahida Shujaat, Abdul Malik, Zaheer Ahmed, Itrat Anis, Pir Muhammad, Aziz-ur-Rehman, and Atta-ur-Rahman

Subjects
chemistry.chemical_classification, Magnetic Resonance Spectroscopy, Chloroform, Molecular Structure, biology, Stereochemistry, Organic Chemistry, Plant Science, Paeonia, biology.organism_classification, Biochemistry, Triterpenes, Paeonia emodi, Analytical Chemistry, chemistry.chemical_compound, chemistry, Triterpene, Oleanolic Acid, S glucuronidase, Two-dimensional nuclear magnetic resonance spectroscopy, Glucuronidase, Benzoic acid
Abstract

Emodinol, a new oleane type triterpene, has been isolated from the chloroform soluble fraction of Paeonia emodi. The structure 1beta, 3beta, 23-trihydroxyolean-12-en-28-oic acid 1 has been assigned on the basis of spectral studies including 2D NMR. It showed significant beta-glucuronidase inhibitory activity. In addition benzoic acid and 3-hydroxybenzoic acid have also been reported for the first time from this species.

Published
2003
Full Text
View/download PDF

2. Chemistry and Biological Significance of Essential Oils of Cymbopogon Citratus from Pakistan

Author

Muhammad Ali, Muhammad Saleem, Nighat Afza, Syed Muhammad Abdul Hai, Shahida Shujaat, Atta-ur-Rahman, and M. Aijaz Anwar

Subjects
Distilled oil, biology, Chemistry, Plant composition, Organic Chemistry, Microbial Sensitivity Tests, Plant Science, Citral, biology.organism_classification, Biochemistry, Gas Chromatography-Mass Spectrometry, Analytical Chemistry, chemistry.chemical_compound, Biological significance, Cymbopogon citratus, Botany, Oils, Volatile, Humans, Food science, Cymbopogon, Gas chromatography–mass spectrometry, Medicinal plants, Glucuronidase
Abstract

Steam distilled oil of Cymbopogon citratus was analyzed by Gas Chromatographic-Mass Spectrometry (GC-MS) and citral was found as major constituent. The oil exhibited significant inhibition of beta-glucuronidase activity and also showed activities against some tested human, plant and animal pathogens. The minimum inhibitory concentrations could not be determined due to the lack of some chemicals.

Published
2003
Full Text
View/download PDF

3. Triterpenes fromMimusops elengi

Author

Saeed Ahmad, Ghulam Mustafa, Nusrat Jahan, Shahid Malik, Erum Anis, Shahida Shujaat, Abdul Malik, Zaheer Ahmad, Atta-ur-Rahman, and Night afza

Subjects
Spectrophotometry, Infrared, Stereochemistry, Molecular Conformation, Mimusops elengi, Mass Spectrometry, Substrate Specificity, Terpene, Inhibitory Concentration 50, Structure-Activity Relationship, Animals, Pakistan, Enzyme Inhibitors, Nuclear Magnetic Resonance, Biomolecular, Glucuronidase, chemistry.chemical_classification, Plants, Medicinal, Molecular Structure, biology, Chemistry, biology.organism_classification, Sapotaceae, Triterpenes, Enzyme inhibition, Enzyme, Liver, Molecular Medicine, Cattle, Chromatography, Thin Layer, Medicine, Traditional, Pentacyclic Triterpenes
Abstract

Pentacyclic triterpenes (1) and (2) have been isolated from Mimusops elengi and assigned structures 3beta,6beta,19alpha,23-tetrahydroxy-urs-12-ene and 1beta-hydroxy-3beta-hexanoyllup-20 (29)-ene-23, 28-dioic acid, respectively, on the basis of spectroscopic studies including 2D-NMR. The compound 1 showed moderate inhibiting activity against beta-glucuronidase enzyme

Published
2001
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results