Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021)

The Effect of Sodium Chloride with Varying Concentration on Characteristics and Rheology of Extracted Gluten from Wheat Flour

Authors
Nancy Siti Djenar1, *, Retno Dwi Jayanti1, Joko Suryadi1
1Department of Chemical Engineering, Politeknik Negeri Bandung, Indonesia
*Corresponding author. Email: nancysd@polban.ac.id.
Corresponding Author
Nancy Siti Djenar
Available Online 23 November 2021.
DOI
10.2991/aer.k.211106.004How to use a DOI?
Keywords
Wheat flour; Gluten; Sodium chloride; Characteristics; Rheology
Abstract

Gluten is a vegetable protein with the potential to be developed into functional food because of its high protein content. Gluten is viscoelastic which gives chewiness characteristics. In Indonesia, gluten is still imported and limited to processing food or to substitute for animal protein. This study aims to determine the effect of NaCl addition on the characteristics and rheology of extracted gluten. Addition of NaCl to the dough, 1%, 2% and 3%, respectively. The results showed that the extracted gluten had a protein content of 83.23-86.93%, moisture content of 1.17-1.54%, ash content of 0.13-0.16%, and fat content of 0.28-0.89%. These results are in accordance with the Codex International Standard. This showed that the gluten contained in wheat flour is good as a commodity in the food industry. Increasing the NaCl amount would also increase the tensile strength and the % elongation of gluten produced in the range of 88.71-201.90 gf/mm2 and 7.10-14.51%, respectively. It showed that this addition affects the empirical rheological quality of the dough, strengthening the gluten network so that the extracted gluten from wheat flour in addition to food fortification can also be used for non-food purposes. The FT-IR spectrum showed the presence of bands, including β-sheet (1612 and 1633 cm-1) in the intermolecular and intramolecular structures of gluten, α-helix (1658-1650 cm-1), and β-turn (1668 cm-1) linked to the glutamine side chain. These contribute to the secondary structure of the gluten protein. The presence of β-sheet and β-turn in the FT-IR spectrum of gluten indicates that the gluten contained in wheat flour is more elastic and stable. The gluten in this study has functional groups in the same wavenumber range as the functional groups from the literature. The addition of NaCl to the dough did not have a significant effect on the absorption bands on the gluten spectra.

Copyright
© 2021 The Authors. Published by Atlantis Press International B.V.
Open Access
This is an open access article under the CC BY-NC license.

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Volume Title
Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021)
Series
Advances in Engineering Research
Publication Date
23 November 2021
ISBN
978-94-6239-451-3
ISSN
2352-5401
DOI
10.2991/aer.k.211106.004How to use a DOI?
Copyright
© 2021 The Authors. Published by Atlantis Press International B.V.
Open Access
This is an open access article under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Nancy Siti Djenar
AU  - Retno Dwi Jayanti
AU  - Joko Suryadi
PY  - 2021
DA  - 2021/11/23
TI  - The Effect of Sodium Chloride with Varying Concentration on Characteristics and Rheology of Extracted Gluten from Wheat Flour
BT  - Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021)
PB  - Atlantis Press
SP  - 20
EP  - 25
SN  - 2352-5401
UR  - https://doi.org/10.2991/aer.k.211106.004
DO  - 10.2991/aer.k.211106.004
ID  - Djenar2021
ER  -