13 documents found, page 1 of 2
Educa??o do campo e mem?ria coletiva - movimentos sociais na luta pela terra no...
Xavier, CristinaSubmitted by Leticia Schettini (leticia@ufrrj.br) on 2021-12-30T13:05:11Z No. of bitstreams: 1 2019 - Cristina Xavier.pdf: 2926936 bytes, checksum: e4342de06652c3c41b0947881a41a52d (MD5); Made available in DSpace on 2021-12-30T13:05:11Z (GMT). No. of bitstreams: 1 2019 - Cristina Xavier.pdf: 2926936 bytes, checksum: e4342de06652c3c41b0947881a41a52d (MD5) Previous issue date: 2019-08-28; CAPES - Coordena??o de A...
Modelling beef meat quality traits during ageing by early post-mortem pH decay ...
Xavier, Cristina; Gonzales-Barron, Ursula; Muller, Alexandra; Cadavez, VascoPrevious work has demonstrated that beef carcasses can be promptly and accurately classified into optimal quality and cold-shortened in accordance to the concept of pH/temperature ‘ideal window’ by using carcass characteristics and early post-mortem pH/temperature decay descriptors. The objective of this study was to assess the combined effects of the aforementioned variables on the two main eating quality attr...
Melissa officinalis L. ethanolic extract inhibits the growth of a lung cancer c...
Magalhães, Daniela B.; Castro, Inês; Lopes-Rodrigues, Vanessa; Pereira, Joana M.; Barros, Lillian; Ferreira, Isabel C.F.R.; Xavier, CristinaMelissa officinalis is a plant from the family Lamiaceae, native in Europe particularly in the Mediterranean region. Given our interest in identifying extracts and compounds capable of inhibiting tumor cell growth, and given the antioxidant content and the high consumption of Melissa officinalis in Portugal, this study aimed to test the tumor cell growth inhibitory activity of five different extracts of this pl...
The cell growth inhibitory effect of an aqueous extract of Tuberaria lignosa in...
Pereira, Joana M.; Rodrigues, V.L.; Xavier, Cristina; Lima, M. João; Lima, Raquel T.; Ferreira, Isabel C.F.R.; Vasconcelos, M. HelenaTuberaria lignosa (Sweet) Samp. is found in European regions. This plant has antioxidant properties due to its composition in ascorbic acid and phenolic compounds [1]. Given its antioxidant properties and its large traditional use, the aim of this work was to study the tumor cell growth inhibitory potential of aqueous extracts from T. lignosa (prepared by infusion and decoction). Cell growth was accessed by the...
Study of the mechanism of action of Melissa officinalis L. extracts in inhibiti...
Magalhães, Daniela B.; Castro, Inês; Pereira, Joana M.; Lopes-Rodrigues, Vanessa; Ferreira, Isabel C.F.R.; Xavier, Cristina; Vasconcelos, M. HelenaMelissa officinalis L., commonly known as "lemon balm" is a perianal herbaceous plant from the family Laminaceae, native in Europe particularly in the Mediterranean region. Rosmarinic acid, the most abundant phenolic compound derived from caffeic acid, and some flavonoids such as luteolin-7-O-glucoside are described as responsible for its antimicrobial properties, antiinflammatory, antioxidant and even anti-tum...
Modelling meat eating quality traits during ageing as affected by early post-mo...
Cadavez, Vasco; Xavier, Cristina; Gonzales-Barron, UrsulaPrevious work has demonstrated that beef carcasses can be accurately classified into optimal quality and cold-shortened in accordance to the concept of pH/temperature ’ideal window’ by early post-mortem pH/temperature decay descriptors. The objective of this study was to assess the combined effects of such variables on the two main eating quality attributes of meat-tenderness (measured as shear force) and juici...
An exposure assessment model of the prevalence of Salmonella spp. along the pro...
Gonzales-Barron, Ursula; Piza, Luciana; Xavier, Cristina; Costa, Ernane; Cadavez, VascoBeef cattle carrying Salmonella spp. represents a risk for contamination of meat and meat products. This study aimed to build an exposure assessment model elucidating the changes in Salmonella prevalence in Brazilian beef along the processing stages. To this effect, the results of a number of published studies reporting Salmonella incidences were assembled in order to model conversion factors based on beta dist...
An aqueous extract of tuberaria lignosa inhibits cell growth, alters the cell c...
Pereira, Joana M.; Lopes-Rodrigues, Vanessa; Xavier, Cristina; Lima, M. João; Lima, Raquel T.; Ferreira, Isabel C.F.R.; Vasconcelos, M. HelenaTuberaria lignosa (Sweet) Samp. is found in European regions, and has antioxidant properties due to its composition in ascorbic acid and phenolic compounds. Given its traditional use and antioxidant properties, the tumor cell growth inhibitory potential of aqueous extracts from T. lignosa (prepared by infusion and decoction) was investigated in three human tumor cell lines: MCF-7 (breast adenocarcinoma), NCI-H4...
Estudio de meta-análisis del efecto de estimulación eléctrica en la fuerza de c...
Xavier, Cristina; Gonzales-Barron, Ursula; Muller, Alexandra; Cadavez, VascoThe objective of this work was to use meta-analysis to estimate the effect size of the electrical stimulation on beef tenderness through the study of the measurements of shear force. Eight independent studies were used based on comparison of shear force measurements on the Longissimus dorsi and Longissimus lumborum in cattle carcasses subject to electrical stimulation and unstimulated carcasses. For each study,...
Modelling the temperature and pH decline early post-mortem of beef carcasses
Xavier, Cristina; Gonzales-Barron, Ursula; Cadavez, Vasco; Muller, AlexandraThe objective of this work was to model the pH and temperature decline early post-mortem on beef carcasses and to study the effect of gender, genotype and weight class on the pH and temperature decline patterns. A total of 24 beef animals slaughtered in a local abattoir were sampled. pH and temperature were recorded using an OMEGA wireless receiver/host (UWTC-RECl). The decline of pH and temperature was modelle...