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《Hubei Agricultural Sciences》 2012-13
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Study on Extracting Technology and Properties of Carya hunanensis Oil

PENG Xiang-liana,b,FU Hong-juna,YANG Chao-meia(a.College of Food Science and Engineering;b.National Engineering Laboratory for Rice and Byproducts Processing,Central South University of Forestry and Technology,Changsha 410004,China)  
Oil was extracted from Carya hunanensis by soxhlet extracting method.Single factor tests and orthogonal experiment were obtained to study the effects of several extracting factors on the yield of oil.The optimum extracting conditions were petroleum ether as extraction solvent;solid to liquid ratio,1∶9(m∶V,g / mL);extraction temperature 55 ℃ and extraction time 5 h.The yield of C.hunanensis oil was 68.5% under these conditions.Extracted oil was light golden brown,with acid value(KOH) of 0.400 mg / g,iodine value(I2) of 105.5 g / 100 g,saponification value(KOH) of 185 mg / g and refractive index n2d0 of 1.470 4.According to GC test,the total unsaturated fatty acid contributed for 92.16%(mass fraction) of the obtained oil,among which oleic acid accounted for 68.03%.
【Fund】: 湖南省教育厅科学研究项目(10C1339);; 湖南省科技计划项目(2011NK3036);; 中南林业科技大学青年基金项目
【CateGory Index】: TS225.1
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