Abstract
The objective of the present study was to develop tofu with soybean-water soluble extract coagulated with cardoon flower (F1) and magnesium chloride (MgCl2, F2). The produced tofu was characterized in terms of physical, chemical, microbiological, and sensory properties during 14 days of storage. The yield of F1 was higher (p < 0.05) (195 g/100 soybean seeds) than F2 (162 g/100 soybean seeds). F1 presented higher moisture, protein, acidity, syneresis, and lipids when compared with F2, and a reduction of these contents during the storage. F1 presented lower hardness, stickiness, springiness, and cohesiveness compared with F2. The acceptability of F1 showed a score of 6.00 and F2 of 4.68, and the purchase intention was 3.22 for F1 and 2.23 for F2. This study recommended the use of cardoon flower at 35% level as it has great potential as a coagulant for the elaboration of tofu with higher yield, and acceptability and reasonable purchasing intention.
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Abbreviations
- F1:
-
Tofu coagulated with cardoon flower extract
- F2:
-
Tofu coagulated with MgCl2
- MgCl2 :
-
Magnesium chloride
- NaCl:
-
Sodium chloride
- KTI:
-
Kunitz Trypsin Inhibitor
- DPPH:
-
2,2-Diphenyl-1-picryl-hydrazyl-hydrate
- SEM:
-
Scanning electron microscope
- RDC:
-
Resolution of directory college
- CPEA:
-
Certificate of presentation of ethical appreciation
- PCA:
-
Principal component analysis
- CFU:
-
Colony-forming unit
- MPN:
-
Most Probable Number
- IC50 :
-
Half-maximal inhibitory concentration
- PC1:
-
Principal component 1
- PC2:
-
Principal component 2
- r:
-
Pearson correlation coefficient
- AA:
-
Antioxidant activity
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The authors would like to thank the National Council for Scientific and Technological Development (CNPq), the Coordination for the Improvement of Higher Education Personnel Brazil (CAPES)—Finance Code 001, the Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul (Fapergs), and the URI for the financial and structure support.
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da Silva Scherer, G.C.R., Colet, R., Cavalheiro, D. et al. Technological characteristics of tofu from soybean coagulated with cardoon flower extract. J Food Sci Technol 60, 1323–1331 (2023). https://doi.org/10.1007/s13197-023-05678-3
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DOI: https://doi.org/10.1007/s13197-023-05678-3