Article (Scientific journals)
Effect of pilot-scale steam treatment and endogenous alpha-amylase activity on wheat flour functional properties
Delatte, Sophie; Doran, Lynn; Blecker, Christophe et al.
2019In Journal of Cereal Science, 88, p. 38-46
Peer reviewed
 

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Keywords :
wheat; flour; steam treatment; functionality; amylase; starch
Abstract :
[en] Flour steam treatment is an effective industrial process that aims to modify the functional properties of flours. Its effects depend on both the setting parameters of the application and the intrinsic properties of the native flour used. In order to control the effect of these parameters, wheat flours presenting high and low initial alphaamylase activities were subjected to various steam injection volumes on a pilot-scale level. All the processed wheat flours showed a higher gelatinization temperature, higher pasting profiles, higher water absorption indexes and lower solubility indexes. Changes induced by this treatment seem closely dependent on injected steam volume. Three main mechanisms appear to be involved in these modifications: endogenous alpha-amylase activity reduction, partial starch gelatinization and protein denaturation. Steaming can be used to normalize harvested wheat lots with initial amylase activities considered as excessive
Research center :
TERRA Teaching and Research Centre - TERRA
Disciplines :
Food science
Author, co-author :
Delatte, Sophie ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > SMARTECH
Doran, Lynn ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > SMARTECH
Blecker, Christophe ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > SMARTECH
De Mol, Guy
Roiseux, Olivier
Malumba Kamba, Paul  ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > SMARTECH
Language :
English
Title :
Effect of pilot-scale steam treatment and endogenous alpha-amylase activity on wheat flour functional properties
Publication date :
16 May 2019
Journal title :
Journal of Cereal Science
Volume :
88
Pages :
38-46
Peer reviewed :
Peer reviewed
Name of the research project :
Startech
Funders :
Région Wallonne - Via Pôle Wagralim
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since 26 January 2020

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