کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
230389 | 1427383 | 2014 | 10 صفحه PDF | دانلود رایگان |
• Seeds from 6 grape cultivars and 2 harvesting years were extracted with SC-CO2.
• Mass transfer parameters were evaluated for the seeds of all grape cultivars.
• Grape seed oils were characterized for lipid classes, lipid acyl chains, tocols.
• Similarities and differences among the various oils were underlined.
The current study focuses on the recovery of grape seed oil by supercritical CO2 extraction. Grape seeds from six grape cultivars were extracted in two subsequent harvesting years, and the resulting oils were characterized for the relative amount of: (a) lipid classes; (b) lipid acyl chains; and (c) tocopherols and tocotrienols. Comparative extractions were performed by utilizing n-hexane as solvent and by mechanical pressure. A well-established modeling approach was applied to evaluate the mass transfer parameters affecting the kinetics of supercritical CO2 extraction: with these parameters, process scale-up can be addressed. The results reported in this study testify the potentiality of grape seed oil as a source of unsaturated fatty acids and tocols. Moreover, they offer a clear picture of the similarities and differences among oils from different grape cultivars and obtained through different extraction techniques.
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Journal: The Journal of Supercritical Fluids - Volume 94, October 2014, Pages 71–80