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首页> 外文期刊>Analytical methods >Supercritical carbon dioxide extraction of beta-carotene and alpha-tocopherol from pumpkin: a Box-Behnken design for extraction variables
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Supercritical carbon dioxide extraction of beta-carotene and alpha-tocopherol from pumpkin: a Box-Behnken design for extraction variables

机译：来自南瓜的β-胡萝卜素和α-生育酚的超临界二氧化碳提取：提取变量的Box-Behnken设计

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摘要

In this study, supercritical fluid extraction with carbon dioxide was applied to achieve a successful extraction of both beta-carotene and alpha-tocopherol from pumpkin. To achieve the ideal optimization of this process, response surface methodology combined with a Box-Behnken design were used to thoroughly investigate the effect of extraction variables, such as pressure (20-30 MPa), temperature (40-50 degrees C) and the mass ratio of pumpkin flesh against pumpkin seed (0 : 1-2 : 1) on the yield of oil, alpha-tocopherol and beta-carotene from pumpkin. The results indicated that the mass ratio of pumpkin flesh against pumpkin seed significantly influenced the extraction of oil, alpha-tocopherol and beta-carotene. Three second-order polynomial mathematical models were determined for each response with high R-square values (0.95) in the present experiment. The maximum yield of oil, alpha-tocopherol and beta-carotene was 14.20 +/- 0.80 g/100 g sample, 9.53 +/- 1.20 mg/100 g sample and 20.50 +/- 0.50 mg/100 g sample, respectively, corresponding to the extraction process under optimal conditions (i.e., pressure of 30 MPa, temperature of 47.75 degrees C and 67% of seed) using Derringer's desirability function method.
机译：在该研究中，应用了用二氧化碳的超临界流体萃取，从南瓜中成功提取β-胡萝卜素和α-生育酚。为了实现这一过程的理想优化，使用响应面方法与Box-Behnken设计相结合，彻底研究了提取变量，例如压力（20-30MPa），温度（40-50摄氏度）和南瓜肉体对南瓜种子（0：1-2：1）对南瓜油，α-生育酚和β-胡萝卜素的产量的质量比。结果表明，南瓜肉对南瓜种子的质量比显着影响了油，α-生育酚和β-胡萝卜素的提取。在本实验中确定具有高R-Square值（＆ 0.95）的每个响应的三阶多项式数学模型。油的最大收率，α-生育酚和β-胡萝卜素为14.20 +/- 0.80g / 100g样品，9.53 +/- 1.20mg / 100g样品和20.50 +/- 0.50 mg / 100g样品，相应在最佳条件下（即，30MPa的压力，使用Derringer的期望功能方法（即，温度为30MPa，温度为47.75℃和67％）的萃取过程。

著录项

  • 来源
    《Analytical methods》 |2017年第2期|共10页
  • 作者

    Wang Xiudong; Wang Chen; Zha Xianjun; Mei Yanan; Xia Jingxin; Jiao Zhen;

  • 作者单位

    Southeast Univ Sch Chem &

    Chem Engn Nanjing 211189 Jiangsu Peoples R China;

    Southeast Univ Chenxian Coll Sch Chem &

    Chem Engn Nanjing 210088 Jiangsu Peoples R China;

    Southeast Univ Sch Chem &

    Chem Engn Nanjing 211189 Jiangsu Peoples R China;

    Southeast Univ Chenxian Coll Sch Chem &

    Chem Engn Nanjing 210088 Jiangsu Peoples R China;

    Southeast Univ Chenxian Coll Sch Chem &

    Chem Engn Nanjing 210088 Jiangsu Peoples R China;

    Southeast Univ Sch Chem &

    Chem Engn Nanjing 211189 Jiangsu Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 分析化学;
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