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Effects of Particle Size and High Pressure Process on the Extraction Yield of Oil Compounds from Soybean Powder Using Hexane and Supercritical Fluid  

Yoon, Won-Byong (Department of Food Science and Biotechnology, Kangwon National University)
Publication Information
Food Engineering Progress / v.15, no.3, 2011 , pp. 203-208 More about this Journal
Abstract
Effects of particle size and high pressure processing on the extraction rate of oil compounds from soybean powder were evaluated by Soxhlet method using hexane and supercritical fluid extraction (SFE) using $CO_{2}$. SFE was carried out at 4,000 psi and $50^{\circ}C$ for 4 hr. The mean particle sizes were varied from 26.7 to 862.0 ${\mu}m$ by controlling milling time. Saturation solubility increased as the particle size decreased. At large particle size, high pressure processing (HPP) showed higher extraction yield in both hexane extraction and SFE, but, as the particle size decreased, the HPP was irrelevant to the extraction yield in SFE. The higher extraction rate obtained from the smaller particle size. The scanning electronic microscopy of soybean powder treated by HPP showed pores on the surface of the particle. The higher extraction rate and yield from HPP treatment might be due to the less internal resistance of transferring the solvent and miscellar in the solid matrix by collapsing of tissues.
Keywords
soybean powder; high pressure processing; supercritical fluid extraction; oil; scanning electronic microscopy;
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Times Cited By KSCI : 2  (Citation Analysis)
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