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Capacidade antioxidante em resíduos da indústria cafeeira

Universidade Estadual Paulista (Unesp) (2015-10-01)

The aim of this study was to recover the phenolic compounds from coffee industry residues and evaluate their antioxidant capacity. The residues (husk, pulp and spent coffee) were obtained from different steps of the ...

Reaction of 5-aminosalicylic acid with peroxyl radicals: Protection and recovery by ascorbic acid and amino acids

López Alarcón, Camilo; Rocco Klein, Claudio Alberto; Lissi Gervaso, Eduardo A.; Carrasco, C.; Squella Serrano, Juan; Núñez Vergara, Luis; Speisky Cosoy, Hernán (SPRINGER/PLENUM PUBLISHERS, 2005-10)

Purpose. The aims of the study are to analyze the interaction between 5-aminosalicylic acid (5-ASA) and peroxyl radicals and to evaluate the effect of some endogenous compounds such as ascorbic acid and amino acids on the ...

SCAVENGING ACTIVITY OF DICLOFENAC: INTERACTION WITH ABTS RADICAL CATION AND PEROXYL RADICALS

ROJO,C; ÁLVAREZ-FIGUEROA,M. J; SOTO,M; CAÑETE,A; PESSOA-MAHANA,D; LÓPEZ-ALARCÓN,C (Sociedad Chilena de Química, 2009)

Kinetics and mechanism of St I modification by peroxyl radicals

Campos, A. M.; Lissi Gervaso, Eduardo A.; Vergara, C.; Lanio, M. E.; Alvarez, C.; Pazos, I.; Morera, V.; García, Y.; Martinez, D. (1999)

St I is a toxin present in the Caribbean Sea anemone Stichodactyla helianthus which is highly hemolytic in the nanomolar concentration range. Exposure of the toxin to free radicals produced in the pyrolysis of 2,2'- ...

Kinetics and mechanism of st i modification by peroxyl radicals

Campos, A. M.; Lissi Gervaso, Eduardo A.; Vergara, C.; Lanio, M. E.; Alvarez, C.; Pazos, I.; Morera, V.; Garcia, Y.; Martinez, D. (1999)

Scavenging activity of diclofenac. Interaction with abts radical cation and peroxyl radicals

Unknown author (SOC CHILENA QUIMICA, 2009)

Aggregation of alpha- and beta- caseins induced by peroxyl radicals involves secondary reactions of carbonyl compounds as well as di-tyrosine and di-tryptophan formation

Fuentes-Lemus, Eduardo; Silva, Eduardo; Barrias, Pablo; Aspee, Alexis; Escobar, Elizabeth; Lorentzen, Lasse G.; Carroll, Luke; Leinisch, Fabian; Davies, Michael J.; Lopez-Alarcon, Camilo (2018)

A Pyranine based Procedure for Evaluation of the Total Antioxidant Potential (TRAP) of Polyphenols: A Comparison with closely related Methodologies

CAMPOS,ANA MARÍA; SOTOMAYOR,CARLOS PATRICIO; PINO,EDUARDO; LISSI,EDUARDO (Sociedad de Biología de Chile, 2004)

The peroxyl radical-induced oxidation of Escherichia coli FtsZ and its single tryptophan mutant (Y222W) modifies specific side-chains, generates protein cross-links and affects biological function

Escobar-Álvarez, Elizabeth; Leinisch, Fabian; Araya, Gissela; Monasterio Opazo, Octavio; Lorentzen, Lasse G.; Silva, Eduardo; Davies, Michael J.; López Alarcón, Camilo (Elsevier Inc., 2017)

© 2017 Elsevier Inc. FtsZ (filamenting temperature-sensitive mutant Z) is a key protein in bacteria cell division. The wild-type Escherichia coli FtsZ sequence (FtsZwt) contains three tyrosine (Tyr, Y) and sixteen methionine ...

The ORAC (oxygen radical absorbance capacity) index does not reflect the capacity of antioxidants to trap peroxyl radicals

Dorta, E.; Fuentes Lemus, E.; Aspée, A.; Atala, E.; Speisky Cosoy, Hernán; Bridi, R.; Lissi Gervaso, Eduardo A.; López Alarcón, Camilo (Royal Society of Chemistry, 2015)

© The Royal Society of Chemistry 2015.In the present work we demonstrate from kinetic studies that under the experimental conditions proposed for the ORAC protocol, ORAC values do not correlate with the capacity of ...

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