Abstract
Torreya grandis seed oil (TGSO) extraction with supercritical carbon dioxide was explored from the extraction conditions, fatty acid composition, its oxidative stability and antioxidant activity in a bench-scale apparatus. An L9(34) orthogonal design was applied to optimize extraction parameters. The results demonstrated that the maximum yield of 94.57 % was obtained at 45 MPa, 4 h and 50 °C. There were 18 kinds of compounds found within TGSO; the predominant ingredient was linoleic acid (42.02 %), followed by oleic acid (32.14 %) and dihomo-γ-linolenic acid (9.80 %). The IC50 values for 1,6-bis(diphenylphosphino) hexane radical (DPPH), hydroxyl radical (HO•) and superoxide radical (O2 ·−) were 5.61, 3.16 and 4.20 mg/mL, respectively.
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This work was supported by Zhejiang Municipal Natural Science Foundation (No.LY12C20003), The Outstanding Dissertation Growth Foundation of Ningbo University, and K. C. Wang Magna Fund in Ningbo University.
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Dong, D., Wang, H., Xu, F. et al. Supercritical Carbon Dioxide Extraction, Fatty Acid Composition, Oxidative Stability, and Antioxidant Effect of Torreya grandis Seed Oil. J Am Oil Chem Soc 91, 817–825 (2014). https://doi.org/10.1007/s11746-014-2419-0
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DOI: https://doi.org/10.1007/s11746-014-2419-0