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Now showing items 11-20 of 160
The pyrrolizidine alkaloids of Senecio syringifolius and S. hadiensis from Kenya
(Pergamon, 1993-01-01)
Angularine, rosmarinine and 12-O-acetylrosmarine, together with their N-oxides were isolated from epigeal parts of S. syringifolius, while
Flavonoids from Tephrosia interrupta and T. linearis.
(CABI DIRECT, 1990)
In east Africa, medicinal uses have been reported for the roots of T. interrupta (coughs and treatment of women after childbirth) and the leaves of T. linearis ([unspecified] diseases in infants). Flavonoid analyses are ...
Chinchona Alkaloid from Dendrosenecio kilimanjari subsp. cottonii
(Georg Thieme Verlag Stuttgart· New York, 1997-02)
Investigation of the Tanzanian Dendrosenecio kilimanjari subsp. cottonii resulted in the isolation of the cinchona alkaloid, cinchonidine (2). Conversion of cinchonidine to deoxy-cinchonidine was achieved in high yield ...
Isolation and chemical characterisation of pyrrolisidine alkaloids from some senecio
(University of Calgary, 1991)
Pretreatment with natural flavones and neuronal cell survival after oxidative stress: a structure− activity relationship study
(Journal of agricultural and food chemistry, 2010)
Quercetin shows structural features that have been related to the antioxidant potency of flavonoids and also shows neuroprotection in different models of oxidative death. Because only a few studies have focused on the ...
α-Amylase and α-glucosidase inhibitors from Zanthoxylum chalybeum Engl. root bark
(Elsevier, 2020-10-01)
A systematic analysis of the root bark of Zanthoxylum chalybeum was conducted to establish the antidiabetic potential of isolated compounds based on its ethnomedicinal use to manage diabetes. Chromatographic separation of ...
Potential of novel phytoecdysteroids isolated from Vitex doniana in the treatment depression: Involvement of monoaminergic systems
(Elsevier, 2014-12-01)
Vitex doniana Sweet (Verbanaceae) is used in traditional African medicine for the treatment of neurological disorders including depression. In our previous studies, three new phytoecdysteroids were isolated from methanol ...
The mechanism of 2-chlorobiphenyl oxidative degradation by nanoscale zero-valent iron in the presence of dissolved oxygen
(Springer Berlin Heidelberg, 2017-11-08)
It has recently been demonstrated that the addition of nanoscale zero-valent iron (nZVI) to oxygen-containing water or soil aquifers results in the oxidation of organic compounds. However, there has been little insight ...
Function of Nitrate Ion and Tea Saponin Application Rates in Anerobic PAH Dissipation in Paddy Soil
(2016-06-01)
Abstract In the present study, KNO 3 and tea saponin (TS) were applied to investigate
systematically the potential impact of their concentrations on dissipation of anerobic
polycyclic aromatic hydrocarbons (PAH) in ...
Feasibility of an enhanced washing process to extract PBDEs/heavy metals/antibiotics from antibiotic resistance gene-affected soil with aqueous DNA followed by mi...
(2016-03-01)
Abstract Purpose Remediation of polybrominated diphenyl ethers (PBDEs)/heavy
metals/antibiotics mixed contaminated soil with high abundance of antibiotic resistance
genes (ARGs) has being greatly challenging. Materials ...