The Functionality of Inulin as a Sugar Replacer in Cakes and Biscuits; Highlighting the Influence of Differences in Degree of Polymerisation on the Properties of Cake Batter and Product

Sugar has multiple roles in baked products; competing for water and as such reducing starch gelatinisation and gluten development, behaving as a fluid during cooking, recrystallising on cooling; roles which influence properties such as aeration, texture and mouthfeel. Partial replacement with inulin...

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Main Authors: Kleopatra Tsatsaragkou, Lisa Methven, Afroditi Chatzifragkou, Julia Rodriguez-Garcia
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/10/5/951
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author Kleopatra Tsatsaragkou
Lisa Methven
Afroditi Chatzifragkou
Julia Rodriguez-Garcia
author_facet Kleopatra Tsatsaragkou
Lisa Methven
Afroditi Chatzifragkou
Julia Rodriguez-Garcia
author_sort Kleopatra Tsatsaragkou
collection DOAJ
description Sugar has multiple roles in baked products; competing for water and as such reducing starch gelatinisation and gluten development, behaving as a fluid during cooking, recrystallising on cooling; roles which influence properties such as aeration, texture and mouthfeel. Partial replacement with inulin, can provide beneficial nutritional and functional properties. This paper investigated the degree of polymerisation (DP) of two commercial inulins and their influence on baked product properties as a 30% sugar replacer. The two inulins varied substantially in their proportion of longer fructans (32.7% compared to 17.5% of DP > 11). The lower DP inulin led to a cake batter with very similar viscoelastic properties to the standard sugar batter, and subsequently to a very similar baked cake crumb structure, cake texture and mouthfeel. The higher DP inulin led to a more viscous batter, and cake with a less homogenous crumb structure that was perceived to be dryer and more mouthcoating. The subsequent use of the lower DP inulin in a biscuit formulation resulted in a slightly less elastic dough and consequently a softer and less crunchy biscuit. In summary, the success of inulin in providing functional properties that can enable sugar reduction in baked products is dependent on the degree of polymerisation of the inulin and rheological parameters needed in the specific bakery matrix.
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spelling doaj.art-0141169e5c214b428e2904f1bc9fa9e12023-11-21T17:17:59ZengMDPI AGFoods2304-81582021-04-0110595110.3390/foods10050951The Functionality of Inulin as a Sugar Replacer in Cakes and Biscuits; Highlighting the Influence of Differences in Degree of Polymerisation on the Properties of Cake Batter and ProductKleopatra Tsatsaragkou0Lisa Methven1Afroditi Chatzifragkou2Julia Rodriguez-Garcia3Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading, Berkshire RG6 6AD, UKDepartment of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading, Berkshire RG6 6AD, UKDepartment of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading, Berkshire RG6 6AD, UKDepartment of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading, Berkshire RG6 6AD, UKSugar has multiple roles in baked products; competing for water and as such reducing starch gelatinisation and gluten development, behaving as a fluid during cooking, recrystallising on cooling; roles which influence properties such as aeration, texture and mouthfeel. Partial replacement with inulin, can provide beneficial nutritional and functional properties. This paper investigated the degree of polymerisation (DP) of two commercial inulins and their influence on baked product properties as a 30% sugar replacer. The two inulins varied substantially in their proportion of longer fructans (32.7% compared to 17.5% of DP > 11). The lower DP inulin led to a cake batter with very similar viscoelastic properties to the standard sugar batter, and subsequently to a very similar baked cake crumb structure, cake texture and mouthfeel. The higher DP inulin led to a more viscous batter, and cake with a less homogenous crumb structure that was perceived to be dryer and more mouthcoating. The subsequent use of the lower DP inulin in a biscuit formulation resulted in a slightly less elastic dough and consequently a softer and less crunchy biscuit. In summary, the success of inulin in providing functional properties that can enable sugar reduction in baked products is dependent on the degree of polymerisation of the inulin and rheological parameters needed in the specific bakery matrix.https://www.mdpi.com/2304-8158/10/5/951cakebiscuitsugarinulindegree of polymerisationrheology
spellingShingle Kleopatra Tsatsaragkou
Lisa Methven
Afroditi Chatzifragkou
Julia Rodriguez-Garcia
The Functionality of Inulin as a Sugar Replacer in Cakes and Biscuits; Highlighting the Influence of Differences in Degree of Polymerisation on the Properties of Cake Batter and Product
Foods
cake
biscuit
sugar
inulin
degree of polymerisation
rheology
title The Functionality of Inulin as a Sugar Replacer in Cakes and Biscuits; Highlighting the Influence of Differences in Degree of Polymerisation on the Properties of Cake Batter and Product
title_full The Functionality of Inulin as a Sugar Replacer in Cakes and Biscuits; Highlighting the Influence of Differences in Degree of Polymerisation on the Properties of Cake Batter and Product
title_fullStr The Functionality of Inulin as a Sugar Replacer in Cakes and Biscuits; Highlighting the Influence of Differences in Degree of Polymerisation on the Properties of Cake Batter and Product
title_full_unstemmed The Functionality of Inulin as a Sugar Replacer in Cakes and Biscuits; Highlighting the Influence of Differences in Degree of Polymerisation on the Properties of Cake Batter and Product
title_short The Functionality of Inulin as a Sugar Replacer in Cakes and Biscuits; Highlighting the Influence of Differences in Degree of Polymerisation on the Properties of Cake Batter and Product
title_sort functionality of inulin as a sugar replacer in cakes and biscuits highlighting the influence of differences in degree of polymerisation on the properties of cake batter and product
topic cake
biscuit
sugar
inulin
degree of polymerisation
rheology
url https://www.mdpi.com/2304-8158/10/5/951
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