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首页> 外文期刊>Journal of Oleo Science >Elimination of Glycidyl Palmitate in Diolein by Treatment with Activated Bleaching Earth
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Elimination of Glycidyl Palmitate in Diolein by Treatment with Activated Bleaching Earth

机译：活化漂白土处理消除二油精中棕榈酸缩水甘油酯

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摘要

In this study, activated bleaching earth (ABE) was used to eliminate glycidyl esters from both triacyl- and diacylglycerol oils. To investigate the mechanism, glycerol dioleate containing glycidyl palmitate (GP) was treated with ABE and the fate of the GP was monitored by analyzing the feed, treated, and ABE-absorbed oils using a gas-liquid chromatograph equipped with a flame-ionized detector. GP was completely removed from both the treated and absorbed oils. This indicates that this treatment is useful for GE removal from diacylglycerol oil, although it was not achieved by absorption of GE on ABE but rather by modification of GP. The results of composition analysis demonstrate that GP is transformed to glycerol monopalmitate, glycerol palmitate oleate, and glycerol dipalmitate at a recovery rate of 99.1 ± 1.3 %. An increase in glycerol monooleate and trace amounts of free glycerol and fatty acids were also observed after treatment. The transformation is proposed to involve a ring-opening reaction of GP with water contained in the ABE and in the bulk oil followed by an interesterification reaction among the resultant monopalmitate and the glycerol dioleate of the bulk oil. All the generated compounds were simple acylglycerols and glycerol. Therefore, ABE treatment could be useful for GE removal during the manufacture of edible oils.
机译：在这项研究中，活性漂白土（ABE）用于消除甘油三酯和二酰基甘油油中的缩水甘油酯。为了研究其机理，用ABE处理了含棕榈酸缩水甘油酯的甘油二油酸酯，并使用配备了火焰离子检测器的气液色谱仪分析了进料，处理过的和吸收了ABE的油，从而监控了GP的命运。 GP已从处理后的油和吸收的油中完全去除。这表明该处理对于从二酰基甘油油中去除GE是有用的，尽管它不是通过在ABE上吸收GE而是通过修饰GP来实现的。组成分析的结果表明，GP以99.1±1.3％的回收率转化为甘油单棕榈酸酯，甘油棕榈酸酯油酸酯和甘油二棕榈酸酯。处理后还观察到甘油单油酸酯的增加以及痕量的游离甘油和脂肪酸的增加。提出该转化涉及GP与ABE和散装油中所含的水的开环反应，然后在所得的单棕榈酸酯和散装油的甘油二油酸酯之间进行酯交换反应。所有产生的化合物都是简单的酰基甘油和甘油。因此，在食用油的生产过程中，ABE处理可能对去除GE有用。

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  • 来源
    《Journal of Oleo Science》 |2012年第1期|p.23-28|共6页
  • 作者

    Masao Shimizu; Junya Moriwaki; Daisuke Shiiba; Hidenori Nohara; Naoto Kudo; Yoshihisa Katsuragi;

  • 作者单位

    Healthcare Research Laboratories, Kao Corporation (2-1-3 Bunka, Sumida-ku, Tokyo 131-8501, JAPAN);

    Healthcare Research Laboratories, Kao Corporation (2-1-3 Bunka, Sumida-ku, Tokyo 131-8501, JAPAN);

    Healthcare Research Laboratories, Kao Corporation (2-1-3 Bunka, Sumida-ku, Tokyo 131-8501, JAPAN);

    Healthcare Research Laboratories, Kao Corporation (2-1-3 Bunka, Sumida-ku, Tokyo 131-8501, JAPAN);

    Healthcare Research Laboratories, Kao Corporation (2-1-3 Bunka, Sumida-ku, Tokyo 131-8501, JAPAN);

    Healthcare Research Laboratories, Kao Corporation (2-1-3 Bunka, Sumida-ku, Tokyo 131-8501, JAPAN);

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  • 正文语种 eng
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  • 关键词

    glycidol fatty acid esters; activated bleaching earth; diacylglycerol; mitigation;

    机译：缩水甘油脂肪酸酯;活性漂白土;二酰基甘油减轻;

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