Evaluating the Role of Mashing in the Amino Acid Profiles of Worts Produced from Gluten-Free Malts

A successful wort fermentation depends on both the sugar and the free amino nitrogen (FAN) content of a wort. The primary goal of the mashing step is to generate fermentable sugars, as FAN is regarded as being primarily determined by malt quality; however, the role of mashing in modifying FAN has no...

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Main Authors: Andrew J. Ledley, Ryan J. Elias, Darrell W. Cockburn
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Beverages
Subjects:
Online Access:https://www.mdpi.com/2306-5710/9/1/10
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author Andrew J. Ledley
Ryan J. Elias
Darrell W. Cockburn
author_facet Andrew J. Ledley
Ryan J. Elias
Darrell W. Cockburn
author_sort Andrew J. Ledley
collection DOAJ
description A successful wort fermentation depends on both the sugar and the free amino nitrogen (FAN) content of a wort. The primary goal of the mashing step is to generate fermentable sugars, as FAN is regarded as being primarily determined by malt quality; however, the role of mashing in modifying FAN has not been extensively studied, especially with respect to non-barley brewing materials. In this study, the FAN content of gluten-free (GF) worts varied greatly from barley (73–490 mg/L vs. 201 mg/L, respectively) and yielded different amino acid profiles, including lower proline and higher γ-aminobutyric acid concentrations. While most of the amino acids were present in the malt or generated in a brief window early in the mashing, significant increases in amino acid concentrations could be generated by mashing at temperatures below 55 °C. Overall, GF malts are promising brewing ingredients that can produce quality worts if appropriate mashing conditions are implemented.
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spelling doaj.art-ee1a780e5b92469e9bad908e6019812a2023-11-17T09:38:42ZengMDPI AGBeverages2306-57102023-01-01911010.3390/beverages9010010Evaluating the Role of Mashing in the Amino Acid Profiles of Worts Produced from Gluten-Free MaltsAndrew J. Ledley0Ryan J. Elias1Darrell W. Cockburn2Department of Food Science, College of Agricultural Sciences, The Pennsylvania State University, University Park, PA 16802, USADepartment of Food Science, College of Agricultural Sciences, The Pennsylvania State University, University Park, PA 16802, USADepartment of Food Science, College of Agricultural Sciences, The Pennsylvania State University, University Park, PA 16802, USAA successful wort fermentation depends on both the sugar and the free amino nitrogen (FAN) content of a wort. The primary goal of the mashing step is to generate fermentable sugars, as FAN is regarded as being primarily determined by malt quality; however, the role of mashing in modifying FAN has not been extensively studied, especially with respect to non-barley brewing materials. In this study, the FAN content of gluten-free (GF) worts varied greatly from barley (73–490 mg/L vs. 201 mg/L, respectively) and yielded different amino acid profiles, including lower proline and higher γ-aminobutyric acid concentrations. While most of the amino acids were present in the malt or generated in a brief window early in the mashing, significant increases in amino acid concentrations could be generated by mashing at temperatures below 55 °C. Overall, GF malts are promising brewing ingredients that can produce quality worts if appropriate mashing conditions are implemented.https://www.mdpi.com/2306-5710/9/1/10beermaltgluten-freemilletamino acidsbrewing
spellingShingle Andrew J. Ledley
Ryan J. Elias
Darrell W. Cockburn
Evaluating the Role of Mashing in the Amino Acid Profiles of Worts Produced from Gluten-Free Malts
Beverages
beer
malt
gluten-free
millet
amino acids
brewing
title Evaluating the Role of Mashing in the Amino Acid Profiles of Worts Produced from Gluten-Free Malts
title_full Evaluating the Role of Mashing in the Amino Acid Profiles of Worts Produced from Gluten-Free Malts
title_fullStr Evaluating the Role of Mashing in the Amino Acid Profiles of Worts Produced from Gluten-Free Malts
title_full_unstemmed Evaluating the Role of Mashing in the Amino Acid Profiles of Worts Produced from Gluten-Free Malts
title_short Evaluating the Role of Mashing in the Amino Acid Profiles of Worts Produced from Gluten-Free Malts
title_sort evaluating the role of mashing in the amino acid profiles of worts produced from gluten free malts
topic beer
malt
gluten-free
millet
amino acids
brewing
url https://www.mdpi.com/2306-5710/9/1/10
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