Combination of natural strategies to improve the oxidative stability of echium seed oil
| Autor: | Letícia Maeda Cajaíba, Gabriela Grassmann Roschel, Roseli Aparecida Ferrari, Tayse Ferreira Ferreira da Silveira, Inar Alves de Castro |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
food.ingredient
030309 nutrition & dietetics Food Handling Antioxidants 03 medical and health sciences chemistry.chemical_compound 0404 agricultural biotechnology food Lipid oxidation Drug Stability Fatty Acids Omega-3 Plant Oils Echium Food science Peroxide value 0303 health sciences biology Chemistry business.industry Sunflower oil Temperature ANTIOXIDANTES 04 agricultural and veterinary sciences biology.organism_classification Malondialdehyde 040401 food science Oxidative Stress Petroleum industry Food Storage Echium plantagineum Seeds business Oxidation-Reduction Food Science Stearidonic acid |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 1750-3841 |
| Popis: | Echium seed oil is an alternative source of omega 3 fatty acids but it is highly susceptible to oxidation. A combination of three natural strategies was proposed in this study aiming to improve the oxidative stability of echium oil obtained by pressing (PO) or solvent extraction (PSO), kept in the storage condition for 180 days or during the consumption for 30 days. Our results showed that the reduction of temperature was sufficient to keep the oil stable during storage for both samples. During the consumption time, the best stability was achieved by adding a mixture of antioxidants, composed of sinapic (500 ppm), ascorbic (250 ppm), and citric (150 ppm) acids, and/or 20% of high oleic sunflower oil. The combined strategies promoted a 34 to 80% reduction of peroxide value and 0 to 85% reduction of malondialdehyde concentrations in the samples, showing to be a feasible and natural alternative to improve the oxidative stability of echium oil. PRACTICAL APPLICATION: Our study successfully applied an optimized combination of simple and low-cost strategies to enhance the chemical stability of echium seed oil. As the use of echium oil expands around the world, the oil industry and final consumers may benefit from our results to increase the oil shelf-life. |
| Databáze: | OpenAIRE |
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