Abstract
Rheological properties of wheat flour were studied in the course of its processing (cooking and saccharification). The effects of commercial alpha-amylase preparations were compared during flour preparation. Test preparations were equally potent in decreasing the viscosity of an all-grain batch. Homogenous glucoamylases isolated from Aspergillus differed in the presence or absence of the starch-binding domain. The starch-binding domain provided for the high activity of glucoamylase on insoluble starch, but gave no advantages in saccharification of pretreated wheat flour.
Publication types
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Comparative Study
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English Abstract
MeSH terms
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Amylases / chemistry*
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Amylases / isolation & purification
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Aspergillus / enzymology*
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Flour*
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Food Handling / methods*
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Fungal Proteins / chemistry*
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Fungal Proteins / isolation & purification
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Glucan 1,4-alpha-Glucosidase / chemistry
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Glucan 1,4-alpha-Glucosidase / isolation & purification
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Hydrolysis
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Protein Structure, Tertiary
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Starch / chemistry
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Triticum / chemistry*
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alpha-Amylases / chemistry
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alpha-Amylases / isolation & purification
Substances
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Fungal Proteins
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Starch
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Amylases
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alpha-Amylases
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Glucan 1,4-alpha-Glucosidase