|
|
|
|
|
Duarte,Stella Maris da Silveira; Abreu,Celeste Maria Patto de; Menezes,Hilary Castle de; Santos,Marcelo Henrique dos; Gouvêa,Cibele Marli Cação Paiva. |
The aim of this work was to evaluate the effect of processing and roasting on the antioxidant activity of coffee brews. Brews prepared with light, medium and dark roasted coffees were analyzed. The pH, total solids content, polyphenols content, reducing substances and chlorogenic acids content were determined. The antioxidant activity of aqueous extracts, the guaicol decolorizing and the capacity to inhibit lipid peroxidation were also analyzed. The antioxidant activity of coffee brews were concentration-dependent. A progressive antioxidant activity and polyphenols content was observed decreasing with roasting. The light roasted coffee showed the highest antioxidant activity and dark roasted coffee showed the lowest antioxidant activity. The results... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beverage; Antioxidant activity; Roasting; Coffee; Processing. |
Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612005000200035 |
| |
|
| |
|
|
Dias Júnior,Gilson Sebastião; Silveira,Vítor Augusto; Ascari,Ivan Júnior; Pereira,Renata Apocalypse Nogueira; Danés,Marina de Arruda Camargo; Pereira,Marcos Neves. |
ABSTRACT: The aim of this study was to evaluate the effect of total replacement of raw whole soybean (RAW) for roastedwhole soybean (ROS) on the production performance of Holstein cows. Two experiments were carried out usinga simple reversal design where RAW has been completely replaced by ROS. In experiment 1, 22 cows (175±60 days in milk)were used, and the dietary inclusion level of RAW or ROS was 3.7% of dry matter (DM). In experiment 2, 16 cows (130±50 days in milk)were used, and thedietary inclusion level of RAW or ROS was 11% of DM. In both experiments, ROS increased milk production by 1.1kgday-1 without changing fat and protein production. Dry matter intake or milk urea nitrogenwere not affected by dietary soy source. In experiment 2, plasma glucose... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Non-degradable protein; Roasting; Milk production. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000500651 |
| |
|
|
|