Development of walnut oil and almond oil blends for improvements in nutritional and oxidative stability

Authors

DOI:

https://doi.org/10.3989/gya.0920192

Keywords:

Almond oil, Blended oil, Fatty acid composition, Micronutrients and oxidative stability, Walnut oil

Abstract


For the increase in oxidative stability and phytonutrient contents of walnut oil (WO), 5, 10, 20 and 30% blends with almond oil (AO) were prepared. The fatty acid compositions and the micronutrients of the oil samples such as tocopherol, phytosterol and squalene were measured by GC-MS and HPLC. It was found that the proportions of PUFAs/SFAs in blended oils with high AO contents were lowered, and the blends contained higher levels of tocopherols, phytosterols and squalene than those of pure WO. The 60 °C oven accelerated oxidation test was used to determine the oxidative stability of the blended oil. The fatty acid composition, micronutrients and oxidation products were determined. The results showed that the oxidation stability of the blended oil increased with an increasing proportion of AO. In addition, a significant negative correlation between micronutrient and oxidation products was observed as the number of days of oxidation increased.

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Published

2020-12-04

How to Cite

1.
Pan F, Wang X, Wen B, Wang C, Xu Y, Dang W, Zhang M. Development of walnut oil and almond oil blends for improvements in nutritional and oxidative stability. grasasaceites [Internet]. 2020Dec.4 [cited 2020Nov.26];71(4):e381. Available from: http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1851

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Research