Abstract
The present study was aimed to determine the impact of processing (dehulling or germination) on the structure and rheological behaviour of gruels made from sorghum, soybean and sesame. A rotational viscometer was used to determine the rheological parameters of gruels from these materials. Compared to each raw material, the processing presented a significant effect on the viscosity of the gruels. The power law model was better described the rheological behaviour of the gruels. All gruels were time-dependent fluids, except for germinated sorghum-based gruels. Most of them were thixotropic shear-thinning fluids, only germinated sorghum-based gruels are non-thixotropic shear-thinning fluids and those from dehulled soybean exhibited anti-thixotropic behaviour. The apparent viscosity of gruels decreased with temperature, fitting an Arrhenius relationship, with the activation energy ranging from 5973 to 27,674 J/mol. The rheological behaviour of these foods will helps to understand the behaviour of any products based on their mixture.
Acknowledgements
The authors are grateful to the Department of Food Sciences and Nutrition of the National Advanced School of Agro-Industrial Sciences (ENSAI) of the University of Ngaoundere for providing laboratory facilities.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: None declared.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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© 2022 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Critical Review
- The biological activity and application of Monascus pigments: a mini review
- Articles
- Isolation, characterization, immunoregulatory, and antioxidant activities of polysaccharides from Morinda officinalis fermented by Bacillus sp. DU-106
- Rheological characterisation of gruels made from some bio-based ingredients commonly used in food products
- Effects of konjac glucomannan on pasting, rheological, and structural properties of low-amylose rice starch
- Physicochemical and bioactive properties of avocado (Persea americana Mill. cv. Lorena)
- The combined effects of ripening degree and fermentation process on biochemical properties of table olives and oils of Ayvalık and Gemlik varieties
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Articles in the same Issue
- Frontmatter
- Critical Review
- The biological activity and application of Monascus pigments: a mini review
- Articles
- Isolation, characterization, immunoregulatory, and antioxidant activities of polysaccharides from Morinda officinalis fermented by Bacillus sp. DU-106
- Rheological characterisation of gruels made from some bio-based ingredients commonly used in food products
- Effects of konjac glucomannan on pasting, rheological, and structural properties of low-amylose rice starch
- Physicochemical and bioactive properties of avocado (Persea americana Mill. cv. Lorena)
- The combined effects of ripening degree and fermentation process on biochemical properties of table olives and oils of Ayvalık and Gemlik varieties
- Effect of solvent, method, time and temperature of extraction on the recovery of phenolic compounds and antioxidants from spent coffee grounds