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首页> 外文期刊>Theoretical foundations of chemical engineering >Extraction of Pomegranate Seed Oil Using Subcritical Propane and Supercritical Carbon Dioxide1
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Extraction of Pomegranate Seed Oil Using Subcritical Propane and Supercritical Carbon Dioxide1

机译：亚临界丙烷和超临界二氧化碳萃取石榴籽油1

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Extraction of oil from pomegranate seeds as a waste product of the juice industry using supercritical carbon dioxide and subcritical propane was studied in this work. The influence of the main operating conditions of extraction, namely, the temperature and pressure of extraction on the oil extraction yield and the correspondent fatty acid profile were analyzed and reported here. Soxhlet extraction with n-hexane was done for comparison with supercritical extraction resulting in a maximum yield of oil of 22.31 wt %. Supercritical carbon dioxide and subcritical propane extracted up to 58.53% (corresponding to maximum yield of 13.06 wt %) and 76.73% (corresponding to maximum yield of 17.12 wt %) of the total amount of pomegranate seed oil as measured using Soxhlet extraction, respectively. Results indicated that the subcritical propane is a suitable and selective solvent for the extraction of the pomegranate seed oil in function of smaller times and pressures employed compared to carbon dioxide extraction. The fatty acid composition of the extracted oil showed the presence of fatty acids of C_(16), C_(18/, C_(20), C_(22), and C_(24) carbon chains. Punicic (C_(18.3) was the major fatty acids and comprise up to 70% of the total fatty acid content of the extracted oil among all samples. Finally, Lack's plug flow model as developed by Sovova was applied to both extraction systems and a good agreement with the experimental results was obtained.
机译：在这项工作中，研究了使用超临界二氧化碳和亚临界丙烷从石榴籽中提取油作为果汁工业的废品。在此分析并报告了萃取的主要操作条件，即萃取的温度和压力对油萃取率和相应脂肪酸谱的影响。为了与超临界萃取进行比较，进行了用正己烷的索氏提取，得到最大的油产率为22.31重量％。使用索格利特萃取法测得的石榴籽油总量中，超临界二氧化碳和亚临界丙烷分别提取量分别高达石榴籽油总量的58.53％（对应于最大产率13.06 wt％）和76.73％（对应于最大产率17.12 wt％）。结果表明，与二氧化碳萃取相比，次临界丙烷是用于萃取石榴籽油的合适且选择性的溶剂，其使用的时间和压力更短。提取油中的脂肪酸组成显示存在C_（16），C_（18 /，C_（20），C_（22）和C_（24）碳链脂肪酸，Punicic（C_（18.3）为所有样品中主要脂肪酸含量均占提取油中总脂肪酸含量的70％，最后，由Sovova开发的Lack's塞流模型应用于两种提取系统，均与实验结果吻合良好。

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  • 来源
    《Theoretical foundations of chemical engineering》 |2012年第3期|p.258-265|共8页
  • 作者

    B. Ahangari; J. Sargolzaei;

  • 作者单位

    Department of Chemical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran;

    Department of Chemical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran;

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