| Autor: |
Juan Pedro Sida-Arreola, Paul Baruk Zamudio-Flores, Rogelio Calderón-Loera, Vicente Espinosa-Solis, Gilber Vela-Gutiérrez, Glenda Pacheco-Vargas, Alma Iveth Sáenz-Mendoza, María Hernández-González, Haydee Yajaira López-De la Peña, Alejandro Aparicio-Saguilán, Marisol Patricia Castro-Mendoza, Adalberto Ortega-Ortega |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Emirates Journal of Food and Agriculture, Vol 36, Iss , Pp 1-13 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2079-0538 |
| DOI: |
10.3897/ejfa.2024.119658 |
| Popis: |
Oat (Oa) and apple (Ap) starches were isolated and chemically modified by oxidation with 10% NaOCl to obtain oxidized starches (OOa and OAp), followed by cross-linking with a mixture of 5.6 g of sodium tripolyphosphate and 11 g of sodium trimetaphosphate to obtain doubly modified starches (OCOa and OCAp). In the native and modified starches, the functional properties (swelling power and solubility, and freeze-thaw stability) and thermal and rheological properties (steady-state flow curves and paste formation profile) were evaluated. The swelling power of native and double modified starches varied from 57 to 86 g/g and the solubility from 0.8 to 6.0 g/100 g, these variables increased as the study temperature increased; the increment in these properties was greater in Oa compared to Ap. Oxidation followed by crosslinking increased the freeze-thaw stability in Oa and Ap starches at 30, 60, 75, and 90 °C. It also increased the Tg of OCAp and OCOa ≈ 9% compared to the native samples, respectively; while an inverse pattern was observed in apparent viscosity were this value decreased ≈ 0.8 Pa × s for Oa and ≈ 0.5 Pa × s for Ap compared to the double modified samples. All samples presented a thinning cut-type behavior (pseudoplastic), indicating structural differences. Cross-linking in oxidized starches produced a reinforcing matrix that was determined in the paste formation profile. Dual modification (oxidation-cross-linking) could be an alternative for using starches from underused botanical sources, such as apples and oats, with different functional properties and feasible applications in food systems. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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