Browsing by Author "Wahidullah, S."
Now showing items 1-20 of 58
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2D-NMR studies of a novel steroid from the red alga Acantophora spicifera
OmPrakash; Roy, R.; Bhakuni, D.S.; Wahidullah, S.; Kamat, S.Y. (American Chemical Society, 1989) -
5 alpha - cholestane -3,6-dione from the red alga Acantophora spicifera
Wahidullah, S.; DeSouza, L.; Patel, J. (Elsevier, 1987) -
5(R)-Acetoxyspata-13,17-diene, a novel diterpenoid from the brown alga Stoechospermum marginatum
Wahidullah, S.; Kamat, S.Y.; Paknikar, S.K.; Bates, R.B. (Thieme Medical Publishers, 1988) -
A heteroaromatic acid from marine sponge Suberites vestigium
Mishra, P.D.; Wahidullah, S.; Kamat, S.Y. (NISCAIR, CSIR, 1998)The 4-Methyl- pyrazole-3(5)-carboxylic acid has been isolated from the buttanol fraction of marine sponge, Sunerites vestigium for the first time. The methanol extract of the sponge exhibits in vitro antihistaminic activity. ... -
A new antitumor isoquinoline alkaloid from the marine nudibranch Jorunna funebris
Fontana, A.; Cavaliere, P.; Wahidullah, S.; Naik, C.G.; Cimino, G. (Pergamon, 2000)A new dimeric isoquinoline alkaloid, jorumycin (3), has been isolated from the skin and the mucus of the Pacific nudibranch Jorunna funebris. The structure has been fully elucidated on the grounds of ESMS data and of an ... -
Antibacterial phenolics from the mangrove Lumnitzera racemosa
DeSouza, L.; Wahidullah, S.; PrabhaDevi (NISCAIR, CSIR, 2010)Antimicrobial activity of the methanolic extract and fractions of Lumnitzera racemosa was evaluated against fungi, virus and pathogenic bacteria. Crude methanolic extract and n-butanol fraction were ineffective against ... -
Antimicrobial Activity of Marine Sponge Clathria indica (Dendy, 1889)
Ravichandran, S.; Wahidullah, S.; DeSouza, L.; Anbuchezhian, R.M. (Pleiades Publishing, 2011)Sponges are sessile filter feeders that have developed efficient defense mechanisms against foreign invaders such as viruses, bacteria or eukaryotic organisms. Antimicrobial peptides are known as major components of the ... -
Antimicrobial lipids from the hemolymph of brachyuran crabs
Ravichandran, S.; Wahidullah, S.; DeSouza, L.; Rameshkumar, G. (Springer, 2010)The potential of marine crabs as a source of biologically active products is largely unexplored. In the present study, antimicrobial activity of the hemolymph (plasma) and hemocytes (plasma cells) of six brachyuran crabs ... -
Antispasmodic action of 5-methyl benzoxazoline-2-one: A preliminary study
DeSouza, R.D.; Bhandare, P.N.; Fernandes, N.; Wahidullah, S.; DeSouza, L. (Indian Pharmacological Society, 1997)In the present study, compound (1) depressed both phases of the dose-response curve. The marked effect on 5-HT response cannot be attributed solely to an antimuscarinic action of the compound which was much less (66%) as ... -
Attenuation of Pseudomonas aeruginosa virulence by marine invertebrate–derived Streptomyces sp.
Naik, D.N.; Wahidullah, S.; Meena, R.M. (John Wiley & Sons, 2012)The study aimed to discover quorum sensing (QS) inhibitors from marine sponge-derived actinomycetes and analyse its inhibitory activities against QS-mediated virulence factors in Pseudomonas aeruginosa. Seventy-two ... -
Benzoxazinoids from Acanthus illicifolius
Wahidullah, S.; Bhattacharjee, J.J. (Indian Institute of Science, 2001)1,4-Benzoxazinone derivatives as (2R)-2-beta-D-glucopyranosyloxy-2H-1,4-benzoxazine-3(4H)-one (GHBOA, blepharin) (1) and (2R)-2-beta-D-glucopyranosyloxy-4-hydroxy-1,4-benzoxazine 3-one (GDIBOA) (2) have been isolated from ... -
Bioactive substances
Wahidullah, S. (Oxford and IBH, New Delhi, 2001)Chemistry related to certain bioactive molecules, from Indian Ocean Region, developed into drugs or which served as models for the synthesis of more effective bioactive substances or in use in fundamental studies of ... -
Bioactivity of marine organisms. 6. Antiviral evaluation of marine algal extracts from the Indian coast
Kamat, S.Y.; Wahidullah, S.; DeSouza, L.; Naik, C.G.; Ambiye, V.; Bhakuni, D.S.; Goel, A.K.; Garg, H.S.; Srimal, R.C. (Walter de Gruyter, Berlin, 1992)Ethanolic extracts of Indian marine algae belonging to the Rhodophyceae, Phaeophyceae and Chlorophyceae were tested for anti-semiliki Forest (SFV), Ranikhet Disease (RDV) and Vaccinia (VV) viruses. In the primary screening ... -
Bioactivity of marine organisms. Part 3. Screening of marine algae of Indian coast for biological activity
Kamat, S.Y.; Wahidullah, S.; Naik, C.G.; DeSouza, L.; Jayasree, V.; Ambiye, V.; Bhakuni, D.S.; Goel, A.K.; Garg, H.S.; Srimal, R.C. (Indian Association for Limnology and Oceanography, 1991)Ethanolic extracts from Indian marine algae have been tested for anti-viral, anti-bacterial, anti-fungal, anti-fertility, hypoglycaemic and a wide range of pharmacological activities. Of 34 species investigated 17 appeared ... -
Bioactivity of marine organisms. Part 3. Screening of marine algae of Indian coast for biological activity
Kamat, S.Y.; Wahidullah, S.; Naik, C.G.; DeSouza, L.; Jayasree, V.; Ambiye, V.; Bhakuni, D.S.; Goel, A.K.; Garg, H.S.; Srimal, R.C. (Indian Association for Limnology and Oceanography, 1991)Ethanolic extracts from Indian marine algae have been tested for anti-viral, anti-bacterial, anti-fungal, anti-fertility, hypoglycaemic and a wide range of pharmacological activities. Of 34 species investigated 17 appeared ... -
Bioactivity of marine organisms: Part 7- Effect of seaweed extract on central nervous system
Kamat, S.Y.; Wahidullah, S.; DeSouza, L.; Naik, C.G.; Ambiye, V.; Bhakuni, D.S.; Jain, S.; Goel, A.K.; Srimal, R.C. (CSIR-NISCAIR, 1994)Alcohol extracts of marine algae (Rhodophyceae, Phaeophyceae and Chlorophyceae) was screened for their effect on central nervous system. Of 69 species investigated 8 appeared biologically active, 6 being CNS stimulant, ... -
Biotransformation and detoxification of xylidine orange dye using immobilized cells of marine-derived Lysinibacillus sphaericus D3
PrabhaDevi; Wahidullah, S.; Sheikh, F.; Pereira, R.; Narkhede, N.; Amonkar, D.; Tilvi, S.; Meena, R.M. (MPDI, 2017)Lysinibacillus sphaericus D3 cell-immobilized beads in natural gel sodium alginate decolorized the xylidine orange dye 1-(dimethylphenylazo)-2-naphthol-6-sulfonic acid sodium salt in the laboratory. Optimal conditions were ... -
Bisoxazolinone from the mangrove Acanthus illicifolius
DeSouza, L.; Wahidullah, S.; Mishra, P.D. (NISCAIR, CSIR, 1997)Acanthus illicifolius, a mangrove, possessing analgesic and anti-inflammatory activities afford a dimeric oxazolinone, 5,5' bis-benzoxazoline-2,2'-dione. Its structure has been elucidated on the basis of detailed spectroscopic ... -
Chemical composition, nutritive value and health benefits of edible clam Meretrix casta (Chemnitz) from West Coast of India
Wahidullah, S.; PrabhaDevi; DeSouza, L. (Springer, 2021)The present study was undertaken with a view to determine the nutraceutical value of the commonly consumed edible clam, Meretrix casta (Chemnitz), based on the identification of its organic chemical constituents particularly ... -
Chemical Constituents of the Red Alga Acanthophora Spicifera
Wahidullah, S.; DeSouza, L.; Kamat, S.Y. (Walter de Gruyter, Berlin, 1986)Analysis of the petroleum-wither and chloroform extracts of the marine red alga @iAcanthophora spicifera@@ led to the isolation of a sterol, cholesterol, fatty acids, stearic, palmitic, behenic (C@d22@@) and arachidic acids ...