Starch - Stärke · 1994 · 21 citations · 8 references
AgricultureBiochemistryFood ScienceEnzymologyFood EngineeringFood ProcessingCarbohydrate DigestionCarbohydrates In FoodsGlycan DegradationStarch ChemistrySugar ProcessingVegetable FermentationCarbohydrate Hydrolysis By Alpha-amylaseDietary Fiber ExtractionDigestionEnzymatic HydrolysisEnzymatic Hydrolysis AnalysisStarch ConversionStarch HydrolysisStarch-to-sugar Conversion
Abstract Potato peels discarded by potato processors are a potential source of dietary fiber and starch. This starch may be hydrolyzed for fermentation to value‐added products. Dried steam peels were extruded at 135°C and 22% feed moisture and digested with α‐amylase and/or amyloglucosidase. Two barrel temperatures and feed moistures were also studied. Glucose was measured colorimetrically at O,1,2,4,8 and 24h of incubation. All peels treated with either no enzymes or α‐amylase alone produced minimal glucose. Nonextruded peels digested with both enzymes produced more glucose than did those treated with amyloglucosidase alone. Complete digestion of starch occurred in extruded peels digested with amyloglucosidase, but not when α‐amylase was used.
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