| Autor: |
Guibeth Morelo, Begoña Giménez, Gloria Márquez-Ruiz, Francisca Holgado, Patricio Romero-Hasler, Eduardo Soto-Bustamante, Paz Robert |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Antioxidants, Vol 8, Iss 11, p 520 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2076-3921 |
| DOI: |
10.3390/antiox8110520 |
| Popis: |
The effect of the physical state of flavonoid-inulin microparticles (semi-crystalline/amorphous) on the oxidative stability of lipid matrices was studied. Epicatechin (E) and quercetin (Q) microparticles with inulin were formulated at two infeed temperatures (15 °C and 90 °C) by spray drying. X-ray diffraction analyses showed that flavonoid-inulin microparticles obtained at feed temperature of 15 °C were semi-crystalline (E-In-15, 61.2% and Q-In-15, 60%), whereas those at 90 °C were amorphous (Q-In-90, 1.73 and Q-In-90 2.30%). Semi-crystalline state of flavonoid-inulin microparticles enhanced the EE (68.8 and 67.8% for E and Q, respectively) compared to amorphous state (41.6 and 51.1% for E and Q, respectively). However, amorphous Q-microparticles showed the highest antioxidant activity both in methyl linoleate and sunflower oil, increasing the induction period and decreasing the polar compounds and polymer triglyceride formation during long-term oxidation study. Therefore, the physical state of spray-dried flavonoid-inulin microparticles may determine their antioxidant activity in lipid matrices. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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