1Biological Engineering Department, University of Missouri, USA.
Food Sci Technol Int. 2014 Jan;20(1):63-70. doi: 10.1177/1082013212469620. Epub 2013 Jun 3.
Soybean flakes were extracted using supercritical carbon dioxide at 48.3 MPa and 80 °C, which is a higher temperature than previously reported. Several operational parameters were explored to determine their effect on extractions. Flakes, as typically used in this industry, provided the best extraction performance. Particle size distributions were created through grinding. Reducing average particle diameters smaller than 0.069 mm had no appreciable effect on increasing extraction efficiencies. Exploration of flow rate indicated that a residence time of less than 60 s for the supercritical carbon dioxide would be sufficient for complete extractions. A solvent mass to load mass ratio of 10:1 was found to be sufficient for extraction of oils from soybean flakes. Increasing moisture in the soybeans led to decreasing extraction efficiency of oils. Finally, soybean hulls had no effect on extraction efficiency. Thus, the de-hulling procedure can be removed from the extraction process without decreasing extraction efficiency.
采用 48.3 MPa 和 80°C 的超临界二氧化碳从大豆片中提取，这一温度高于之前的报道。探讨了几种操作参数，以确定它们对提取的影响。在该行业中通常使用的薄片提供了最佳的提取性能。通过研磨来创建粒度分布。将平均粒径减小至小于 0.069mm 并没有显著提高提取效率。对流速的探索表明，对于超临界二氧化碳，停留时间小于 60s 足以完成完全提取。发现溶剂质量与装载质量比为 10:1 足以从大豆片中提取油脂。大豆中的水分增加导致油脂的提取效率降低。最后，大豆皮对提取效率没有影响。因此，在不降低提取效率的情况下，可以从提取过程中去除脱壳程序。
