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- Title
Optimization of microencapsulation of selenium with gum Arabian/Persian mixtures by solvent evaporation method using response surface methodology (RSM): soybean oil fortification and oxidation indices.
- Authors
Jalalizand, Forouzan; Goli, Mohammad
- Abstract
Optimization of microencapsulation of sodium selenite 100–900 mg with a combination of Arabian gum 25–29% and Persian gum 5–1% per 20 ml mix spray solution by a solvent evaporation method using response surface methodology with central composite design (α = 2 with 6 central points and 2 repetition in axial and factorial points) were investigated. This study aimed to production of microencapsulated selenium with the highest encapsulation efficiency (EE) and the smallest particle-size for increasing soybean-oil shelf life against oxidation. The optimal-formula-1 (135 mg Na-selenite, Arabian to Persian gum ratio 9) with an actual EE of 77.35% and particle-size of 48.20 μm and the optimal-formula-2 (109 mg Na-selenite, Arabian to Persian gum ratio 14) with an actual EE of 93.74% and particle-size of 45.20 μm produced. Consequently, the un-microencapsulated sodium-selenite (8.6 ppm of sodium-selenite, equivalent to 3.93 ppm pure selenium, regarding recommended daily intake of 55 μg for Selenium and 14 g for oil), the two selected optimal formulas (containing 8.6 ppm sodium-selenite, i.e., 3.92 ppm pure selenium), the BHA (200 ppm), were added to refined antioxidant-free soybean oil (as a control treatment) and then were placed at the 55 °C for (0, 23, 46 days) equaled to 20 °C (0, 180, 360 days) by a shelf-life accelerator program. The oxidation indices including, total acid number, peroxide value, thiobarbituric acid value, para-Anisidine value, and Totox value as well as, antioxidant activity in soybean-oil over a 1-year storage-time at 20 °C showed the order of the proposed treatments were included 482 ppm optimal-formula-2 ≥ 391 ppm optimal-formula-1 ≥ 200 ppm BHA > 8.6 ppm un-microencapsulated Na-selenite > blank treatments. Optimization of selenium microencapsulation process using Arabian-Persian gum profile and different amounts of sodium slenite by RSM (Part 1) and Assessment of the oxidation indices in refined antioxidant-free soybean oil containing microencapsulated optimal formulas in 365-day storage time at 20 °C (Part 2)
- Subjects
MICROENCAPSULATION; ASTERACEAE; ENCAPSULATION (Catalysis); SELENIUM; ANTIOXIDANTS
- Publication
Journal of Food Measurement & Characterization, 2021, Vol 15, Issue 1, p495
- ISSN
2193-4126
- Publication type
Article
- DOI
10.1007/s11694-020-00659-y