Buscar
Mostrando ítems 6261-6270 de 14705
Inclusion Complexes of Cyclodextrins with Galangin: a Thermodynamic and Reactivity Study
(SPRINGER/PLENUM PUBLISHERS, 2010-10)
The formation of the complexes of galangin (GAL) with native β-cyclodextrin
(βCD), and with its substituted counterparts such as dimethyl-βCD (DMβCD) and
hydroxypropyl-βCD (HPβCD), was studied by fluorescence spectra in ...
Renal function damage in 131 cases of urogenital tuberculosis
(1978)
The functional sequelae of 131 patients with urogenital tuberculosis were examined. At the time of diagnosis, more than half of the patients already suffered from global renal failure which was moderate in 42.7 per cent ...
Evaluation of Latin-American fruits rich in phytochemicals with biological effects
(Elsevier, 2014)
This work aimed to provide a thorough description of the polyphenolic composition of five
Latin-American fruits of increasing interest, which have certain anti-diabetic effects (ac¸aı´,
maqui, Cape gooseberry, papaya and ...
Retention and pre-colon bioaccessibility of oleuropein in starchy food matrices, and the effect of microencapsulation by using inulin
(Elsevier, 2018)
Oleuropein is a phenolic compound that is present in fruits and olive tree leaves, which has shown enormous
health benefits. This study aimed to assess the effects of the baking and boiling cooking methods and the ...
Electrochemical study of nitrostilbene derivatives: nitro group as a probe of the push-pull effect
(ELSEVIER SCIENCE, 2000-09-29)
This paper reports electrochemical (tast polarography, differential pulse polarography, cyclic voltammetry) and spectroscopic investigations covering a series of stilbene derivatives having either one or two electron-donating ...
Two new dammarane triterpenoids from Kageneckia angustifolia D. Don
(JOHN WILEY & SONS LTD, 2005-11)
Two new dammarane triterpenoids, 20R,21-epoxydammar-24-ene-3,23-dione and 20R,21-epoxy-3 beta-hydroxydammar-24-ene-23-one have been isolated from the aerial parts of Kageneckia angustifolia D. Don, Rosaceae, along with the ...
Bioquímica de suelos derivados de cenizas volcánicas. V. Determinación de polifenoloxidas
(Chile, Instituto de Investigaciones Agropecuarias, 1987)
A technique was studied and later implemented to determine the amount of polyphenoloxidase removable from soils. This enzymatic activity favors oxidation processes such as those of phenols. These are the foundations for ...
Interacción diferencial de extractos de taninos enológicos comerciales mediante saliva humana
(Universidad de Chile, 2011)
Una de las propiedades de los taninos es su capacidad de precipitar proteínas, fenómeno que ha sido asociado a su capacidad de producir astringencia.
El presente trabajo tuvo como objetivo evaluar la interacción de dos ...
Derivative spectrophotometric method for copper determination
(Kluwer Academic Publishers, 1995)
A simple, sensitive and selective method by solvent extraction-first derivative spectrophotometry is described for the determination of microamounts of copper in water by means of its reaction and extraction at pH 8.0 with ...
Validación de la determinación de los ácidos fenólicos presente en la infusión de cascarilla de la semilla de cacao (Theobroma cacao) por el equipo de electroforesis capilar
(Universidad de Guayaquil. Facultad de Ciencias Químicas, 2017)
La cascarilla de cacao representa una fuente de polifenoles. Sin embargo, estos compuestos activos no son aprovechados para darle valor agregado a este residuo que se genera en grandes cantidades del proceso de manufactura ...