Browsing by Title Artículos de revistas
Now showing items 489-508 of 2801
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(Wiley, 2015)The objectives of this study were to determine the physicochemical composition, phenolic, tocopherol, flavonoid, flavanol, dietary fiber and β-carotene contents, as well as the antioxidant activity of three olive-waste ...
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(2009)Computed bond lengths and angles of methyl ethyl and dimethyl triphenyl phosphonium ylidic diesters, 1b, c, respectively, are similar to those in the crystal, as for the diethyl ester, 1a, where both acyl oxygens are anti ...
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(American Oil Chemists' Society, 1997)Two Rancimat evaluation modes, the induction period (IP), and the time needed to achieve a selected difference in conductivity (tΔK) were compared for assessing relative stability of anchovy sardine, and hake liver oils. ...
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(ASSOC BRAS DIVULG CIENTIFICA, 1996-05)ATP-diphosphohydrolase (apyrase, EC 3.6.1.5) has both ATPase and ADPase activity that are stimulated by bivalent metals, with Ca2+ being the most effective. The possible physiological function of this enzyme, associated ...
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(Pontificia Universidad Católica de Chile, 2014)In the last 10 years, interest in research on polyphenol-rich fruit species has increased due to the potential health benefits of these species, mainly attributed to their high anthocyanin content and antioxidant activity. ...
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(Ciencia e Investigación Agraria, 2014)In the last 10 years, interest in research on polyphenol-rich fruit species has increased due to the potential health benefits of these species, mainly attributed to their high anthocyanin content and antioxidant activity. ...
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(Pontificia Universidad Catolica de Chile, Facultad de Agronomia e Ingenieria Forestal, 2014)In the last 10 years, interest in research on polyphenol-rich fruit species has increased due to the potential health benefits of these species, mainly attributed to their high anthocyanin content and antioxidant activity. ...
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(SOC PLASTICS ENG INC, 2003-04)New types of compatibilizers based on functionalized polypropylene (PP) were synthesized by radical melt grafting either with monomethyl itaconate or dimethyl itaconate. The effect of these new modified PP compounds were ...
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(Sociedad Chilena de Química, 1988)Se han determinado las propiedades magnéticas y espectroscópicas de los complejos de cobre (II) con bases de Schiff,[Cu(BS)Cl2]. Las bases de Schiff son: N-R-Salicilaldimina, donde R es 2-piridina: 4-metil-2-piridina; o ...
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(Societá Chimica Italiana, 1962)Sono stati preparati diversi tipi di complessi del rame con diammine alifatiche a lunga catena di atomi di C, correpondenti alle formule: CuCl2.1/2 am (giallo), CuCl2.am (verde) e CuCl2.am(azzurro o viola), dove am = ...
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(2000)The 1H and 13C NMR spectra of a set of structurally related tricyclic quinones consisting of 4,4-dimethylanthracene-1,9,10(4H)-trione (1), 4,4,6,7-tetramethylanthracene-1,9,10(4H)-trione (2) and the regioisomers 4,4,5-(3), ...
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(1999)The regiosomeric quinones 5-acetyloxymethyl-4,4,8-trimethyl-(5) and 8-acetyloxymethyl-4,4,5-trimethylanthracene-1,9,10(4H)-trione (6) were synthesized and their regiochemistry was assigned on the basis of the unambiguous ...
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(1998)The 1H and 13C NMR spectra of 2-phenyl-3H-naphtho[2,1-b][1,4]oxazin-3-one, 2-p-methoxyphenylnaphtho[1,2-d]oxazole and 2-phenylnaphtho[1,2-d]oxazole were totally assigned using a combination of one-and two-dimensional NMR ...
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(JOHN WILEY & SONS LTD, 2000-02)The H-1 and C-13 NMR spectra of a set of structurally related tricyclic quinones consisting of 4,4-dimethylanthracene-1,9,10(4H)-trione (1), 4,4,6,7-tetramethylanthracene-1,9,10(4H)-trione (2) and the regioisomers 4,4,5- ...
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(JOHN WILEY & SONS LTD, 1999-04)The regiosomeric quinones 5-acetyloxymethyl-4,4,8-trimethyl- (5) and 8-acetyloxymethyl-4,4,5-trimethylanthracene-1,9,10(4H)-trione (6) were synthesized and their regiochemistry was assigned on the basis of the unambiguous ...
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(JOHN WILEY & SONS LTD, 1998-06)The H-1 and C-13 NMR spectra of 2-phenyl-3H-naphtho[2,1-b][1,4]oxazin-3-one, 2-p-methoxyphenylnaphtho[1,2-d]oxazole and 2-phenylnaphtho[1,2-d]oxazole were totally assigned using a combination of one-and two-dimensional NMR ...
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(2006)The anabaseine derivatives 6-methoxy-7-hydroxy-1-(pyridin-3-yl)-3,4- dihydroisoquinoline, 6,7-dimethoxy-1-(pyridin-3-yl)-1,2,3,4- tetrahydroisoqumoline and 6,7-dimethoxy-1-(piperidin-3-yl)-1,2,3,4- tetrahydroisoquinoline ...
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(JOHN WILEY & SONS LTD, 2006-12)The anabaseine derivatives 6-methoxy-7-hydroxy-1-(pyridin-3-yl)-3,4-dihydroisoquinoline, 6,7-dimethoxyl-(pyridin-3-yl)-1,2,3,4-tetrahydroisoquinoline and 6,7-dimethoxy-1-(piperidin-3-yl)-1,2,3,4-tetrahydroisoquino- line ...
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(2003)The oxoisoaporphines 2,3-dihydro-7H-dibenzo[de,h]quinolin-7-one, 2,3-dihydro-5-methoxy-7H-dibenzo [de,h] quinolin-7-one, 5-methoxy-6-hydroxy-2,3-dihydro-7H-dibenzo[de,h]quinolin-7-one, 5,6-dimethoxy-2,3-dihydro-7H-dibenz ...
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(Elsevier, 1998)The I3- salts soluble in acetone and sparingly so in methanol, and I3- inhibits formation of Co(II) so that minor decomposition of acomplex does not broaden its 1H NMR signals. The (phen)2 complex of Co(III) with D-glucosamine ...