Characterization of Mucilage from Roasted and Steamed Flaxseed and Its Utilization in Low-Fat Cake

Year 2025, Volume: 12 Issue: 3, 129 - 136, 30.09.2025

Merve Arıbaş , Eda Aktaş Akyıldız

https://doi.org/10.17350/HJSE19030000359

Abstract

The effect of heat treatment (roasting and steaming) of flaxseed on physicochemical properties of mucilage and its potential to use as fat replacer in cake formulation were investigated. Flaxseeds were roasted at 100, 130, 160 °C for 5, 10, 15 min, and steamed for 5, 10, 15 min before mucilage extraction. The highest water-holding capacity (22.6%) and oil-holding capacity (4.2%) were observed in mucilage extracted from flaxseed steamed for 15 min, and roasted for 15 min at 160 °C, respectively. However, heat treatment decreased the foam capacity of the mucilage. The highest emulsion capacity (45.5%) was observed in mucilage from flaxseed roasted at 100 °C for 15 min. Mucilage was used in cake formulation at 50% replacement with fat. Heat-treated flaxseed mucilage significantly increased the cake’s specific volume, with the highest (2.52 cm3/g) was determined in the cake supplemented by 15 min steamed flaxseed mucilage. Steamed flaxseed mucilage resulted in a softer cake texture. Moreover, mucilage from steamed flaxseed generally resulted in lower color differences in cake samples compared to that from roasted flaxseed. The addition of mucilage increased total dietary fiber content of cake samples and decreased their glycemic index values. Steamed flaxseed mucilage resulted in the lowest glycemic index values. Overall, heat-treatment of flaxseed, especially steam treatment, before mucilage extraction results in mucilage with improved functional properties without resulting any adverse effects at 50% replacement with shortening in low-fat cake quality.

Keywords

Mucilage , flaxseed , heat treatment , fat replacer , cake

Ethical Statement

Not available

Supporting Institution

Scientific Research Projects Commission of Aksaray University and The Scientific and Technological Research Council of Türkiye (TUBITAK)

Project Number

Scientific Research Projects Commission of Aksaray University through a research Grant No.223-030 and The Scientific and Technological Research Council of Türkiye (TUBITAK) through a research Grant No.223O319.

Thanks

The authors wish to thank Scientific Research Projects Commission of Aksaray University and The Scientific and Technological Research Council of Türkiye (TUBITAK) for financial supports the project

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