The Rheology and Textural Properties of Bakery Products Upcycling Brewers’ Spent Grain

This study aimed to evaluate the rheological properties of doughs with 50% brewers’ spent grain (BSG) derived from a rye-based (RBSG) and barley-based (BBSG) beer added, and the textural profile of the related baked products. Simple model systems using BSG flour mixed with water were studied. Two ba...

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Main Authors: Abirami Ramu Ganesan, Philipp Hoellrigl, Hannah Mayr, Demian Martini Loesch, Noemi Tocci, Elena Venir, Lorenza Conterno
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/12/19/3524
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author Abirami Ramu Ganesan
Philipp Hoellrigl
Hannah Mayr
Demian Martini Loesch
Noemi Tocci
Elena Venir
Lorenza Conterno
author_facet Abirami Ramu Ganesan
Philipp Hoellrigl
Hannah Mayr
Demian Martini Loesch
Noemi Tocci
Elena Venir
Lorenza Conterno
author_sort Abirami Ramu Ganesan
collection DOAJ
description This study aimed to evaluate the rheological properties of doughs with 50% brewers’ spent grain (BSG) derived from a rye-based (RBSG) and barley-based (BBSG) beer added, and the textural profile of the related baked products. Simple model systems using BSG flour mixed with water were studied. Two bakery products, focaccia and cookies, were made as food systems using BSG in a 1:1 ratio with wheat flour (WF). Their rheological properties and texture after baking were characterized. BSG-added dough exhibited viscoelastic properties with a solid gel-like behavior. The addition of BSG increased G′ > G″ and decreased the dough flexibility. BSG addition in baked RBSG focaccia increased the hardness, gumminess, and chewiness by 10%, 9%, and 12%, respectively. BBSG cookies had a 20% increase in fracturability. A positive correlation was found between the rheological metrics of the dough and the textural parameters of BBSG-added cookies. PCA analysis revealed that complex viscosity, G′, G″, and cohesiveness separated BBSG focaccia from RBSG focaccia and the control. Therefore, the rheological properties of BSG dough will have industrial relevance for 3D-printed customized food products with fiber. Adding RBSG and BBSG to selected foods will increase the up-cycling potential by combining techno-functional properties.
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spelling doaj.art-dacbfab8081842efa030dd0c45cd464b2023-11-19T14:22:06ZengMDPI AGFoods2304-81582023-09-011219352410.3390/foods12193524The Rheology and Textural Properties of Bakery Products Upcycling Brewers’ Spent GrainAbirami Ramu Ganesan0Philipp Hoellrigl1Hannah Mayr2Demian Martini Loesch3Noemi Tocci4Elena Venir5Lorenza Conterno6Division of Food Production and Society, Biomarine Resource Valorisation, Norwegian Institute of Bioeconomy Research, Torggården, Kudalsveien 6, NO-8027 Bodø, NorwayFood Technology Area, Institute for Mountain Agriculture and Food Technology Laimburg Research Centre, Laimburg 6, 39051 Pfatten/Vadena, BZ, ItalyFood Technology Area, Institute for Mountain Agriculture and Food Technology Laimburg Research Centre, Laimburg 6, 39051 Pfatten/Vadena, BZ, ItalyFood Technology Area, Institute for Mountain Agriculture and Food Technology Laimburg Research Centre, Laimburg 6, 39051 Pfatten/Vadena, BZ, ItalyFood Technology Area, Institute for Mountain Agriculture and Food Technology Laimburg Research Centre, Laimburg 6, 39051 Pfatten/Vadena, BZ, ItalyFood Technology Area, Institute for Mountain Agriculture and Food Technology Laimburg Research Centre, Laimburg 6, 39051 Pfatten/Vadena, BZ, ItalyFood Technology Area, Institute for Mountain Agriculture and Food Technology Laimburg Research Centre, Laimburg 6, 39051 Pfatten/Vadena, BZ, ItalyThis study aimed to evaluate the rheological properties of doughs with 50% brewers’ spent grain (BSG) derived from a rye-based (RBSG) and barley-based (BBSG) beer added, and the textural profile of the related baked products. Simple model systems using BSG flour mixed with water were studied. Two bakery products, focaccia and cookies, were made as food systems using BSG in a 1:1 ratio with wheat flour (WF). Their rheological properties and texture after baking were characterized. BSG-added dough exhibited viscoelastic properties with a solid gel-like behavior. The addition of BSG increased G′ > G″ and decreased the dough flexibility. BSG addition in baked RBSG focaccia increased the hardness, gumminess, and chewiness by 10%, 9%, and 12%, respectively. BBSG cookies had a 20% increase in fracturability. A positive correlation was found between the rheological metrics of the dough and the textural parameters of BBSG-added cookies. PCA analysis revealed that complex viscosity, G′, G″, and cohesiveness separated BBSG focaccia from RBSG focaccia and the control. Therefore, the rheological properties of BSG dough will have industrial relevance for 3D-printed customized food products with fiber. Adding RBSG and BBSG to selected foods will increase the up-cycling potential by combining techno-functional properties.https://www.mdpi.com/2304-8158/12/19/3524brewers’ spent graintexturerheologyupcyclingtechno-functionalside stream
spellingShingle Abirami Ramu Ganesan
Philipp Hoellrigl
Hannah Mayr
Demian Martini Loesch
Noemi Tocci
Elena Venir
Lorenza Conterno
The Rheology and Textural Properties of Bakery Products Upcycling Brewers’ Spent Grain
Foods
brewers’ spent grain
texture
rheology
upcycling
techno-functional
side stream
title The Rheology and Textural Properties of Bakery Products Upcycling Brewers’ Spent Grain
title_full The Rheology and Textural Properties of Bakery Products Upcycling Brewers’ Spent Grain
title_fullStr The Rheology and Textural Properties of Bakery Products Upcycling Brewers’ Spent Grain
title_full_unstemmed The Rheology and Textural Properties of Bakery Products Upcycling Brewers’ Spent Grain
title_short The Rheology and Textural Properties of Bakery Products Upcycling Brewers’ Spent Grain
title_sort rheology and textural properties of bakery products upcycling brewers spent grain
topic brewers’ spent grain
texture
rheology
upcycling
techno-functional
side stream
url https://www.mdpi.com/2304-8158/12/19/3524
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