Cited by 80Polysaccharides Composition and ApplicationsFood composition and propertiesSeed and Plant Biochemistry

Chia seed mucilage—A vegan thickener: Isolation, tailoring viscoelasticity and rehydration

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Brütsch, Linda, Stringer, Fiona J., Kuster, Simon, Windhab, Erich J., Fischer, Peter·2019·Food & Function

Abstract

Chia seeds and their mucilage gels provide a nutritionally and functionally promising ingredient for the food and pharmaceutical industry. Application and utilization of the gel remain limited due to the tightly adhesion of the mucilage to the seeds, which affects the organoleptic properties, control of concentration and structuring possibilities. To exploit the full potential of chia mucilage gels as a functional ingredient calls for separation and purification of the gel. Herein, the gel was extracted by centrifugation and characterized rheologically and microscopically to link the viscoelastic properties to the structural properties. Subsequently, the gel was dried employing three different methods for facilitated storage and prolonged shelf life. The dried gels were readily soluble and its viscoelastic properties were fully regenerated upon rehydration demonstrating its potential to envisage industrial applications. The viscoelastic chia mucilage demonstrated shear-thinning behavior with complete relaxation upon stress removal. The gel's elasticity was enhanced with increasing mucilage concentration resulting in a highly tunable system. The extractable and rehydratable functional chia gel is a viable candidate as additive for the development of products requiring specific viscoelastic properties. Addition of the gel enhances the nutritional profile without interfering with the organoleptic properties.

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  1. I. Fernández, R. Ayerza, W. Coates, S. M. Vidueiros, N. Slobodianik and A. N. Pallaro, Nutritional characteristics of chia, Actualización en Nutrición, 2006, 7, 23-25.

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Authors
Brütsch, L., Stringer, F. J., Kuster, S., Windhab, E. J., & Fischer, P.
Affiliations
  • ETH Zurich (CH)
  • Laboratory of Food Process Engineering
Corresponding author
Fischer, Peter
Venue
Food & Function
Published
2019
Volume
10
Issue
8
Pages
4854-4860
ISSN
  • 2042-6496 (ISSN-L)
  • 2042-650X
OpenAlex
W2956431241
Cited by
78
References
28
Citations by year
2026: 6 · 2025: 11 · 2024: 18 · 2023: 17 · 2022: 11 · 2021: 11 · 2020: 4
FWCI
5.02
Type
journal article
Language
en
Open access
Locations
  • Food & Function (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Repository for Publications and Research Data (ETH Zurich) (submittedVersion, cc-by)
  • ETH Zürich Research Collection (cc-by)
Funders
Eidgenössische Technische Hochschule Zürich
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Polysaccharides Composition and Applications
  • Health Sciences › Nursing › Nutrition and Dietetics › Food composition and properties
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Seed and Plant Biochemistry
Keywords
chia seed mucilage, viscoelasticity, shear thinning, rehydration, drying methods, shelf life, functional food ingredients, rheology, gel microstructure
MeSH terms
Food Additives, Gels, Plant Extracts, Rheology, Seeds, Viscosity, Salvia, Plant Mucilage

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