Bioprocessing of Wheat and Amaranth Bran for the Reduction of Fructan Levels and Application in 3D-Printed Snacks
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Date
2022-06-02
Authors
Habuš, Matea
Mykolenko, Svitlana
Iveković, Sofija
Pastor, Kristian
Kojić, Jovana 
Drakula, Saša
Ćurić, Duška
Novotni, Dubravka
Journal Title
Journal ISSN
Volume Title
Publisher
MDPI
Abstract
Bran can enrich snacks with dietary fibre but contains fructans that trigger symptoms in
people with irritable bowel syndrome (IBS). This study aimed to investigate the bioprocessing of
wheat and amaranth bran for degrading fructans and its application (at 20% flour-based) in 3D-
printed snacks. Bran was bioprocessed with Saccharomyces cerevisiae alone or combined with inulinase,
Kluyveromyces marxianus, Limosilactobacillus fermentum, or commercial starter LV1 for 24 h. Fructans,
fructose, glucose, and mannitol in the bran were analysed enzymatically. Dough rheology, snack
printing precision, shrinkage in baking, texture, colour, and sensory attributes were determined.
The fructan content of wheat bran was 2.64% dry weight, and in amaranth bran, it was 0.96%
dry weight. Bioprocessing reduced fructan content (up to 93%) depending on the bran type and
bioprocessing agent, while fructose and mannitol remained below the cut-off value for IBS patients.
Bran bioprocessing increased the complex viscosity and yield stress of dough (by up to 43 and 183%,
respectively) in addition to printing precision (by up to 13%), while it lessened shrinkage in baking
(by 20–69%) and the hardness of the snacks (by 20%). The intensity of snack sensory attributes
depended on the bran type and bioprocessing agent, but the liking (“neither like nor dislike”) was
similar between samples. In conclusion, snacks can be enriched with fibre while remaining low in
fructans by applying bioprocessed wheat or amaranth bran and 3D printing.
Description
Keywords
bran fermentation, FODMAP, fructose, actic acid bacteria, Kluyveromyces marxianus, Saccharomyces cerevisiae
Citation
Habuš, M.; Mykolenko, S.; Iveković, S.; Pastor, K.; Kojić, J.; Drakula, S.; Ćurić, D.; Novotni, D. Bioprocessing of Wheat and Amaranth Bran for the Reduction of Fructan Levels and Application in 3D-Printed Snacks. Foods 2022, 11, 1649. https://doi.org/10.3390/ foods11111649