Chemical and biochemical changes during microwave treatment of wheat

The effect of microwave (MW) heating on the changes in wet gluten content, Gluten Index, Falling Number and amylographic characteristics was studied in sprouted wheat grain. Different moistures of wheat in two ranges of 10-11% and 15-17% and two end temperatures of MW heated samples (60 and 80°C) we...

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Main Authors: J. Kaasová, B. Hubáčková, P. Kadlec, J. Příhoda, Z. Bubník
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2002-04-01
Series:Czech Journal of Food Sciences
Subjects:
Online Access:https://cjfs.agriculturejournals.cz/artkey/cjf-200202-0006_chemical-and-biochemical-changes-during-microwave-treatment-of-wheat.php
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author J. Kaasová
B. Hubáčková
P. Kadlec
J. Příhoda
Z. Bubník
author_facet J. Kaasová
B. Hubáčková
P. Kadlec
J. Příhoda
Z. Bubník
author_sort J. Kaasová
collection DOAJ
description The effect of microwave (MW) heating on the changes in wet gluten content, Gluten Index, Falling Number and amylographic characteristics was studied in sprouted wheat grain. Different moistures of wheat in two ranges of 10-11% and 15-17% and two end temperatures of MW heated samples (60 and 80°C) were applied to wheat samples. Falling Number and Gluten Index increased with increasing absorbed energy during MW heating, whereas gluten content decreased. Amylographic maximum increased due to a-amylase inactivation progressively with increasing absorbed energy as well. The greatest relative changes occurred when the end temperature of MW heated samples 80°C and moisture 15% were used. An improvement effect on the baking quality of sprouted wheat was found due to an increase in amylographic maximum with higher energy doses and higher end temperatures of MW heated samples. It was a consequence of Falling Number increase and Gluten Index increase with lower energy doses. The negative effect of higher energy doses was proved in a decrease in wet gluten content.
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spelling doaj.art-ef3478cc6ed645909f1dc18eb69021ee2023-02-23T03:26:36ZengCzech Academy of Agricultural SciencesCzech Journal of Food Sciences1212-18001805-93172002-04-01202747810.17221/3513-CJFScjf-200202-0006Chemical and biochemical changes during microwave treatment of wheatJ. Kaasová0B. Hubáčková1P. Kadlec2J. Příhoda3Z. Bubník4Department of Carbohydrate Chemistry and Technology, Institute of Chemical Technology, Prague, Czech RepublicDepartment of Carbohydrate Chemistry and Technology, Institute of Chemical Technology, Prague, Czech RepublicDepartment of Carbohydrate Chemistry and Technology, Institute of Chemical Technology, Prague, Czech RepublicDepartment of Carbohydrate Chemistry and Technology, Institute of Chemical Technology, Prague, Czech RepublicDepartment of Carbohydrate Chemistry and Technology, Institute of Chemical Technology, Prague, Czech RepublicThe effect of microwave (MW) heating on the changes in wet gluten content, Gluten Index, Falling Number and amylographic characteristics was studied in sprouted wheat grain. Different moistures of wheat in two ranges of 10-11% and 15-17% and two end temperatures of MW heated samples (60 and 80°C) were applied to wheat samples. Falling Number and Gluten Index increased with increasing absorbed energy during MW heating, whereas gluten content decreased. Amylographic maximum increased due to a-amylase inactivation progressively with increasing absorbed energy as well. The greatest relative changes occurred when the end temperature of MW heated samples 80°C and moisture 15% were used. An improvement effect on the baking quality of sprouted wheat was found due to an increase in amylographic maximum with higher energy doses and higher end temperatures of MW heated samples. It was a consequence of Falling Number increase and Gluten Index increase with lower energy doses. The negative effect of higher energy doses was proved in a decrease in wet gluten content.https://cjfs.agriculturejournals.cz/artkey/cjf-200202-0006_chemical-and-biochemical-changes-during-microwave-treatment-of-wheat.phpsprouted wheatmicrowave treatmentfalling numbergluten
spellingShingle J. Kaasová
B. Hubáčková
P. Kadlec
J. Příhoda
Z. Bubník
Chemical and biochemical changes during microwave treatment of wheat
Czech Journal of Food Sciences
sprouted wheat
microwave treatment
falling number
gluten
title Chemical and biochemical changes during microwave treatment of wheat
title_full Chemical and biochemical changes during microwave treatment of wheat
title_fullStr Chemical and biochemical changes during microwave treatment of wheat
title_full_unstemmed Chemical and biochemical changes during microwave treatment of wheat
title_short Chemical and biochemical changes during microwave treatment of wheat
title_sort chemical and biochemical changes during microwave treatment of wheat
topic sprouted wheat
microwave treatment
falling number
gluten
url https://cjfs.agriculturejournals.cz/artkey/cjf-200202-0006_chemical-and-biochemical-changes-during-microwave-treatment-of-wheat.php
work_keys_str_mv AT jkaasova chemicalandbiochemicalchangesduringmicrowavetreatmentofwheat
AT bhubackova chemicalandbiochemicalchangesduringmicrowavetreatmentofwheat
AT pkadlec chemicalandbiochemicalchangesduringmicrowavetreatmentofwheat
AT jprihoda chemicalandbiochemicalchangesduringmicrowavetreatmentofwheat
AT zbubnik chemicalandbiochemicalchangesduringmicrowavetreatmentofwheat