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Thermal and oxidation stability of functional oleogels formed by edible wax/starch and Schisandra chinensis oil

Abstract

This work was aimed at the evaluation of components stability in oleogels and providing a quick, visual description of the relationship between the composition of an oleogel and its thermal and oxidation properties. Composition stability analysis indicated that almost all oleogel components, including approximately 24 fatty acids (FAs), seven diglycerides (DAGs), 21 triglycerides (TAGs) and 19 lignans, were inherited from the precursor oil. The oil content among different oleogels were range from 56.17 to 82.25 %, and the oleogels made with Candlestick wax (CW) showed higher components stability. The non-isothermal crystallization (C), melting (M) and oxidation analysis of the oleogels by differential scanning calorimetry (DSC) showed slight differences among the various oleogels. For the visual analysis, seven components had significant positive relationships with k(Ts) and Ea(Ts), and 18 FAs, 10 glycerides and four lignans had significant positive relationships with k(Tp) and Ea(Tp). As for C(Tp) and C(ΔH), nine lignans, 13 glycerides and three FAs exhibited a notable positive correlation with k(Tp). These results might provide guidance for designing oleogel features and a new application perspective on the stability of solidified oils.

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Publication details

The article was received on 31 Jul 2019, accepted on 22 Oct 2019 and first published on 23 Oct 2019


Article type: Paper
DOI: 10.1039/C9FO01727E
Food Funct., 2019, Accepted Manuscript

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    Thermal and oxidation stability of functional oleogels formed by edible wax/starch and Schisandra chinensis oil

    Y. Gao and S. Wu, Food Funct., 2019, Accepted Manuscript , DOI: 10.1039/C9FO01727E

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