| 植物油的营养和如何在加工中减少反式酸 |
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| 引用本文： | 左青.植物油的营养和如何在加工中减少反式酸[J].中国油脂,2006,31(5):11-13. |
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| 作者姓名： | 左青 |
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| 作者单位： | 广州植之元油脂有限公司,510110,广州市沿江中路296号江湾新城商业中心,1501～1506 |
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| 摘 要： | 介绍了油脂脂肪酸对人体的关系及反式脂肪酸对人体的负面作用。在油脂加工过程中,反式酸含量的增加主要在脱臭工段和氢化工段,为了降低油脂中反式脂肪酸含量,在脱臭段设计填料和板式相结合的脱臭塔,要控制操作条件。在我国间歇氢化过程中,反式酸增加量超过20%,要总结影响因素并加以控制反式酸的含量。超声波氢化、电化学催化氢化和生物酶技术可以减少油脂中反式酸含量。
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| 关 键 词： | 植物油 反式酸 脱臭 氢化 |
| 文章编号： | 1003-7969(2006)05-0011-03 |
| 收稿时间： | 2005-11-01 |
| 修稿时间： | 2005年11月1日 |
Nutritional value of vegetable oils and how to reduce trans fatty acids in processing |
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| ZUO Qing.Nutritional value of vegetable oils and how to reduce trans fatty acids in processing[J].China Oils and Fats,2006,31(5):11-13. |
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| Authors: | ZUO Qing |
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| Affiliation: | Guangzhou Zhizhiyuan Green Oil Co. Ltd. , 510110 Guangzhou,China |
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| Abstract: | The relation of triglycerides with human body and the harmful effect of trans fatty acids were described.The trans fatty acids is produced mainly in deodorization section and hydrogenation section in the oil refinery and deep processing.In order to reduce the trans fatty acids content,a new type of deodorizer combined a packing system with a plate system can be used and operation parameter should be controlled.In traditional batch hydrogenation system,the trans fatty acids normally produce over 25%,so the affecting factors should be concluded and some measures sbould be adopted to reduce the trans fatty acids in the oil.The ultrasonic hydrogenation,electro-chemical hydrogenation and enzyme technology can reduce the trans fatty acids in oils and fats. |
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| Keywords: | vegetable oils trans fatty acids deodorization hydrogenation |
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