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Effect of Acid Treatment on the Chemical Properties of Clays from Selected Sites in Murang’a and Nyeri counties, Kenya
(2020-11-30)
Assessing improvement on the quality of clay has been conducted by treatment with different concentrations of hydrochloric and oxalic acid. This project intended to assess the effect of acid treatment on the elemental ...
A review of 13C NMR spectra of drimane sesquiterpenes
(2019-09)
Drimane sesquiterpenes are important group of phytochemicals with a wide range of medicinal properties including antibacterial, antifungal, anti-inflammatory, antioxidant, antiplasmodial, antileishmanial, molluscicidal, ...
Antimicrobial Constituents Of Conyza Floribunda
(WebmedCentral, 2010-09)
The study describes the antibacterial and antifungal effects of both CH2Cl2 and MeOH crude extracts, collected fractions and pure isolates of Conzya floribunda. The antimicrobial activity tests were carried out using agar ...
Antimicrobial Compounds from Terminalia brownii against Sweet Potato Pathogens
(Bentham Science Publishers, 2011)
Phytochemical evaluation of Terminalia brownii extracts led to the isolation of five compounds namely - sitosterol, stigmasterol, monogynol A, betulinic acid and arjungenin. Their structures were established by spectroscopic ...
7a-Acetylugandensolide and antimicrobial properties of Warburgia ugandensis extracts and isolates against sweet potato pathogens
(Elsevier, 2011)
7a-Acetylugandensolide together with thirteen known drimane-type sesquiterpenes have been isolated from Warbugia ugandensis bark extracts. Their structures were established by spectroscopic and physical methods as well as ...
Antimicrobial Activity of Root Bark Extracts of Rhus natalensisa and Rhus ruspolii
(Scientific & Academic Publishing, 2019-08)
Bacteria and fungi are frequent causes of serious opportunistic infections worldwide. Several effective antibiotic drugs are in the market. However, drug-resistance, side effects and cost of such antibiotics limits their ...
Chemical Constituents of Essential Oils from Three Eucalyptus Species Acclimatized in Ethiopia and Kenya
(2014-11)
Essential oils obtained by steam distillation of three Eucalyptus species acclimatized in Ethiopia and Kenya were analyzed using GC and GC-MS. The species were Eucalyptus citriodora, Eucalyptus globulus and Eucalyptus ...
Flavonol glycosides with insecticidal activity from methanol extract of Annona mucosa Jacq. leaves
(2019-12)
Three flavonoids, quercetin 3-O-β-D-glucoside (1), quercetin 3-O-α-Darabinoside (2) and kaempferol 3-O-β-D-galactoside (3) were isolated from the methanol extract of the leaves of Annona mucosa Jacq. Their structures were ...
Characterization of Clays from selected sites for Refractory Application
(2019-11)
Clay is a stony or earthy mineral aggregate composed of
fine-grained minerals, which are plastic at appropriate water
content and hardens up when fired. Clay soils have various
mineral groups such as kaolinite, smectites, ...
Impure Hydrazone Preparation from Chicken Dung
(IISTE, 2020-09-30)
Hydrazones are strong reducing agents. Some hydrazones like hydrazine are is highly toxic and unstable and are therefore found dissolved in water. Chicken dung contains amines and uric acid that are potential sources of ...