Results 121 to 130 of about 31,144 (246)

Chemical Constituents and Biological Activity of Kaempferia Angustifolia, K. Rotunda,Spermacoce Articularis and S. Exilis [PDF]

open access: yes, 2006
Kaempferia angustifolia, K rotunda (Zingiberaceae), Spennacoce articularis and S. exilis (Rubiaceae) were chosen since they have long been used traditionally in medicinal treatment.
Neoh, Bee Keat
core  

Suitability of Phytosterols Alongside Fatty Acids as Chemotaxonomic Biomarkers for Phytoplankton [PDF]

open access: yes, 2016
The composition and abundance of phytoplankton is an important factor defining ecological status of marine and freshwater ecosystems. Chemotaxonomic markers (e.g., pigments and fatty acids) are needed for monitoring changes in a phytoplankton community ...
Hiltunen, Minna   +3 more
core   +1 more source

Stigmasterol-Based Novel Low Molecular Weight/Mass Organic Gelators

open access: yesMolecules, 2011
Conjugates consisting of stigmasterol and L-phenylalanine, interconnected through short-chained dicarboxylic acyls by ester and amide bonds, respectively, were synthesized as potential low molecular weight/mass organic gelators (LMWGs/LMMGs).
Zdeněk Wimmer   +3 more
doaj   +1 more source

Biotransformation of Zerumbone and Goniothalamin by Aspergillus Niger (Ftcc 5003) and Sclerotium Rolfsii (Local Isolated): Structural Elucidation and Biological Activities [PDF]

open access: yes, 2008
Microbial transformation was carried out on three natural product compounds, namely zerumbone, goniothalamin and cardamonin, using the fungi Aspergillus niger and Sclerotium rolfsii.
Chia, Poh Wai
core  

The Chemical Constituents of Ficus benjamina Linn. and Their Biological Activities [PDF]

open access: yes, 2003
The leaves, bark and fruits of Ficus benjamina Linn. were subjected to extraction and isolation using chromatographic techniques to yield six compounds (cinnamic acid, lactose, naringenin, quercetin, caffeic acid and stigmasterol).
Ali, Abdul Manaf   +3 more
core  

Chemical Constituents and Biological Activities of Micromelum Minutum (Rutaceae) and Two Eugenia Species (Myrtaceae) [PDF]

open access: yes, 2003
Drug discovery has been a goal of mankind since prehistoric times. Plants continue to be an exceptionally viable source of biologically active natural products.
Susidarti, Ratna Asmah
core  

Isolation and Structure Elucidation of Secondary Metabolites from Echinophora platyloba DC from Iran

open access: yesJournal of Medicinal Plants, 2014
Background: Echinophora platyloba DC (Apiaceae) is one of the two endemic species of Echinophora genus in Iran. It has many folkloric uses and several biological activities but there is no information about its phytoconstituents.
H Valizadeh .   +3 more
doaj  

Avaliação do potencial alelopático de substâncias isoladas em sementes de araticum (Annona crassiflora) Allelophatic potential of substances isolated from Annona crassiflora seeds

open access: yesPlanta Daninha, 2010
Este estudo visou identificar substâncias biologicamente ativas e o potencial alelopático de esteroides glicosilados, provenientes das sementes de Annona crassiflora.
M.H Inoue   +7 more
doaj   +1 more source

Chemical Constituents of Mesua Ferrea L. And Piper Nigrum L. and Their Larvicidal Activities [PDF]

open access: yes, 2006
Chemical and biological studies were carried out on two plants, Piper nigrum L. (Piperaceae) and Mesua ferrea L. (Guttiferae). The chemical investigations covered alkaloids, triterpenoids, carboxylic acids and anthraquinones.
Lim, Sooi Kim
core  

Synthetic stigmasterol derivatives inhibit capillary tube formation, herpetic corneal neovascularization and tumor induced angiogenesis: Antiangiogenic stigmasterol derivatives.

open access: yesSteroids, 2016
Fil: Sales, María Elena. Universidad de Buenos Aires. Facultad de Medicina. Cátedra de Farmacología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Estudios Farmacológicos y Botánicos. Universidad de Buenos Aires. Facultad de Medicina.
Michelini, Flavia Mariana   +5 more
openaire   +2 more sources

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