Research Article
Effect of Rosa Mosqueta Husk Extract (Rosa rubiginosa) on Thermooxidation of Grape Seed Oil
Table 1
Fatty acids, tocols’ composition, and CP of GO and SGO.
| | Fatty acid (methyl ester %) | GO | SGO |
| | Myiristic | (C14 : 0) | Trace | Trace | | Palmitic | (C16 : 0) | 6.8 ± 0.0 | 6.7 ± 0.1 | | Palmitoleic | (C16 : 1) | 0.1 ± 0.0 | 0.1 ± 0.0 | | Heptadecanoic | (C17 : 0) | 0.1 ± 0.0 | 0.1 ± 0.0 | | Estearic | (C18 : 0) | 3.9 ± 0.1 | 3.9 ± 0.1 | | Oleic | (C18 : 1w9) | 16.6 ± 0.3 | 16.4 ± 0.4 | | Octadecaenoic | (C18 : 1w7) | 0.8 ± 0.1 | 0.80 ± 0.2 | | Linoleic | (C18 : 2w6) | 70.7 ± 0.1 | 71.0 ± 0.2 | | Octadecadienoic | (C18 : 2) | Trace | Trace | | Linolenic | (C18 : 3w3) | 0.4 ± 0.1 | 0.4 ± 0.0 | | Arachidonic | (C20 : 0) | 0.2 ± 0.0 | 0.2 ± 0.0 | | Eicosenoic | (C20 : 1) | 0.2 ± 0.0 | 0.2 + 0.01 | | Behenic | (C22 : 0) | Trace | Trace | | Tetracosanoic | (C24 : 0) | Trace | Trace | | Others | — | 0.2 ± 0.0 | 0.1 ± 0.0 | | SAT | — | 11.0 | 11.0 | | MUFAs | — | 17.7 | 17.5 | | PUFAs | — | 71.1 | 71.4 |
| | Tocols (mg/kg) | | AT | — | 60.1 ± 0.1 | N.D | | AT3 | — | 336.8 ± 0.2 | N.D | | GT | — | 26.1 ± 0.3 | N.D | | GT3 | — | 397.5 ± 1.2 | N.D | | Total | — | 820.5 | N.D |
| | CP (%) | | TGD | — | 1.7 ± 0.2 | 0.8 ± 0.1 | | oxTGM | — | 0.9 ± 0.1 | 0.3 ± 0.0 | | TGP | — | 0.5 ± 0.0 | — | | Total | — | 3.1 | 1.1 |
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SAT: saturated acid; MUFAs: monounsaturated acids; PUFAs: polyunsaturated acids; GO: grape seed oil; SGO: antioxidant-stripped grape seed oil; AT: alpha-tocopherol; CP: polar compounds %. TGD: triglyceride dimers; oxTGM: monomers of oxidized triglycerides; TGP: triglyceride polymers; ND: no determinate. The values are presented as an average of three determinations ± standard deviation.
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