Determination of optimum conditions for SC-(CO2 plus ethanol) extraction of β-carotene from apricot pomace using response surface methodology
Determination of optimum conditions for SC-(CO2 plus ethanol) extraction of β-carotene from apricot pomace using response surface methodology
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DOI：
10.1016/j.supflu.2004.08.005
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发表时间：
2005-07-01
影响因子：
3.9
通讯作者：
Çalimli, A
中科院分区：
文献类型：
--
作者：
Sanal, IS;Bayraktar, E;Çalimli, A
研究了在夹带剂存在下，超临界二氧化碳（SC-CO2）萃取杏果泥中β -胡萝卜素的工艺。在应用响应面法（RSM）之前，研究了温度、压力、静态提取时间和夹带剂类型对β -胡萝卜素提取率的影响。以乙醇为夹带剂，效果最佳。在RSM中，温度、压力和乙醇百分比（v/v）是关键成分。RSM实验在温度316 ~ 350 K，压力13.3 ~ 47.3 MPa，乙醇含量2 ~ 28% 3个参数下进行。在温度342 K、压力31.1 MPa、乙醇浓度27.4%的条件下，p -胡萝卜素的最佳提取量为100.4 μ g/g干渣。在优化后的β -胡萝卜素最大提取率条件下进行验证实验，得到的β -胡萝卜素含量（98 μ g/g干渣）与预测值非常接近，表明了经验模型的可靠性。(c) 2004 Elsevier B.V.版权所有
Supercritical carbon dioxide (SC-CO2) extraction of beta-carotene from apricot pomace obtained in apricot puree production process was investigated in the presence of an entrainer. Before response surface methodology (RSM) was applied, the effects of temperature, pressure, static extraction time, and type of entrainer on the amount of beta-carotene extracted were studied. Ethanol was chosen as entrainer to obtain the best result. In the RSM, temperature, pressure and ethanol percentage (v/v) were critical components. RSM experiments were performed at the range of temperature 316-350 K, pressure 13.3-47.3 MPa, ethanol percentage 2-28% for three parameters. Optimum amount of P-carotene extracted was obtained as 100.4 mu g/g dry pomace with employing the following predicted optimum extraction conditions: temperature 342 K, pressure 31.1 MPa and ethanol percentage 27.4%. A verification experiment, conducted at these optimized conditions for maximum extraction of beta-carotene, produced value for amount of beta-carotene (98 mu g/g dry pomace) that was very close to predicted value, indicated the reliability of the empirical model. (c) 2004 Elsevier B.V. All rights reserved.