Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Antioxidant activity of Argentine propolis extracts
Autore:
Isla, MI; Moreno, MIN; Sampietro, AR; Vattuone, MA;
Indirizzi:
Univ Nacl Tucuman, Fac Bioquim Quim & Farm, Inst Estud Vegetales Dr Antonio Rodolfo Sampietro, Catedra Fitoquim, RA-4000 San Miguel De Tucuman, Tucuman, Argentina Univ Nacl Tucuman San Miguel De Tucuman Tucuman Argentina RA-4000 gentina
Titolo Testata:
JOURNAL OF ETHNOPHARMACOLOGY
fascicolo: 2, volume: 76, anno: 2001,
pagine: 165 - 170
SICI:
0378-8741(200107)76:2<165:AAOAPE>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
LOW-DENSITY-LIPOPROTEIN; RADICAL-SCAVENGING ACTIVITY; APIS-MELLIFERA PROPOLIS; FOAM CELL-FORMATION; OXIDATIVE MODIFICATION; ANTIMICROBIAL ACTIVITY; DIETARY FLAVONOIDS; ANTIVIRAL ACTIVITY; IN-VITRO; REGIONS;
Keywords:
antioxidants; propolis; low density lipoproteins (LDL); high density lipoproteins (HDL); very low density lipoproteins (VLDL);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
48
Recensione:
Indirizzi per estratti:
Indirizzo: Vattuone, MA Univ Nacl Tucuman, Fac Bioquim Quim & Farm, Inst Estud Vegetales Dr Antonio Rodolfo Sampietro, Catedra Fitoquim, Ayacucho 470, RA-4000 San Miguel De Tucuman, Tucuman, Argentina Univ Nacl Tucuman Ayacucho 470 SanMiguel De Tucuman Tucuman Argentina RA-4000
Citazione:
M.I. Isla et al., "Antioxidant activity of Argentine propolis extracts", J ETHNOPHAR, 76(2), 2001, pp. 165-170

Abstract

Propolis is used in Argentine folk medicine. We have examined its possibleprotective action against oxidative modification of lipid in unfractionated serum. The kinetics of copper-induced oxidation was continuously monitored by measuring the formation of conjugated dienes, as the increase in the absorbance at 234 nm. According to the kinetics of oxidation, the propolis were classified in three different groups. Group I (CE, CO, BO, MO, BE) inhibited lipid oxidation during the initiation and propagation phases even at low concentrations. Group II (SP, CA, AM) increased the lag-phase for conjugated diene formation. All propolis in groups I and II diminished the maximal rate of diene production and the maximal amount of dienes produced. Group III (PA, RA, FE, VR, TV) had no effect on the lipid oxidation. The extentof lipoprotein oxidation was measured by the thiobarbituric acid reactive substance assay. Generation of malondialdehyde-like substances was inhibited and delayed by the presence of propolis extracts from group I and II. Ourresults justify the use of propolis (groups I and II) as a source of natural antioxidants. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/07/20 alle ore 18:04:30