Charakterisierung der Stärkehydrolysate nach Einwirkung einer thermostabilen α‐Amylase

Abstract The action of thermostable α‐amylase produced by Bacillus licheniformis 44MB82 strain on soluble and insoluble starch, amylose and amylopectin at temperatures 30°C and 90°C was studied. The hydrolysis of soluble starch proceeded rapidly for 10 to 15 minutes after which the maltodextrins thus formed were further dissociated. In the course of 60‐minutes enzyme treatment mainly glucose, maltose and maltosugars (from G3 to G6) as low molecular weight products were found and the formation of maltcse and maltotriose was increased by the longer treatment. The hydrolysis of insoluble starch and amylopectin proceeded in the same way while the amylose was hydrolysed slowly.