Beta-amilase: avaliação da atividade enzimática ao longo de diferentes períodos

Abstract

Beta amylase is an enzyme of the malt that has the property of breaking down starch into fermentable sugars. Connections acts hydrolyzing alpha -1 ,4 starch, more precisely in the linear chains of amylose and amylopectin, lower releasing carbohydrate chains ( maltose, maltotriose and glucose ) necessary to process the fermentation by the brewing yeast. This breakdown occurs primarily to provide sugars that subsequently serve to formation of alcohol in beer . The enzymatic activity is initially dependent on the solubilization of enzymes , such as the mashing where ground beans are immersed in water . There are other factors such as temperature , time and pH to ensure maximum enzyme efficiency, which is of great importance for brewery in search of a performance optimized during mashing somehow . This paper proposed a study of beta amylase in different periods of activity on the starch present in the beer wort evaluating the best period of enzymatic activity . A single temperature , different operating times , ranging from zero to 60 minutes , interspersed in five minutes was used . All samples were fermented individually analyzed in order to identify the best period of activity of this enzyme and the musts produced in different periods of time have undergone fermentation , according to alcohol content , alcohol content , real extract and apparent extract.