响应面法优化维生素E提取工艺
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摘要
以植物油脱臭馏出物经酯化、冷析、水洗过滤后的酯化液为原料,采用分子蒸馏工艺从酯化液中提取维生素E,通过响应面法分析分子蒸馏过程产生的馏出液中维生素E的含量和回收率,从而优化维生素E提取工艺参数。根据相关研究的经验,进料流量和蒸馏温度是非常重要的工艺参数,进料流量为2～6ml/min,蒸馏温度为90～140℃时,对维生素E提取作用显著。实验结果表明:蒸馏温度110℃,进料流量4.0ml/min,维生素E质量分数达13.32%,回收率达95.12%。在进料流量较低、蒸馏温度较高的条件下,优化分离条件可获得高浓度的维生素E。
The paper adopted molecular distillation technology to extract vitamin E from the esterification liquid.By analyzing vitamin E content and recovery rate in the distillate produced by the molecular distillation process using the response surface method,the extraction process parameters of vitamin E can be optimized.Based on relativeresearch experience,feed flow rate(F)and distillation temperature(T)were very important process parameters.Whenthefeed flow rate(F)range was at 2-6 ml/min,andthe distillation temperature(T)range was at 90-140℃,itwould have a significant effect on vitamin E extraction.The experiment result showed that When the distillation temperature was 110℃,and feed flow rate was 4.0 ml/min,the vitamin E content couldbeashighas 13.32%and the recovery rate reached 95.12%.Under the conditions of low feed flow and high distillation temperature,high concentration of vitamin E can be obtained by optimizing the separation conditions.
The paper adopted molecular distillation technology to extract vitamin E from the esterification liquid.By analyzing vitamin E content and recovery rate in the distillate produced by the molecular distillation process using the response surface method,the extraction process parameters of vitamin E can be optimized.Based on relativeresearch experience,feed flow rate(F)and distillation temperature(T)were very important process parameters.Whenthefeed flow rate(F)range was at 2-6 ml/min,andthe distillation temperature(T)range was at 90-140℃,itwould have a significant effect on vitamin E extraction.The experiment result showed that When the distillation temperature was 110℃,and feed flow rate was 4.0 ml/min,the vitamin E content couldbeashighas 13.32%and the recovery rate reached 95.12%.Under the conditions of low feed flow and high distillation temperature,high concentration of vitamin E can be obtained by optimizing the separation conditions.
引文
[1]崔凤杰,王宏媛,陈志蔚,等.脱臭馏出物提取天然生育酚研究进展[J].粮食与油脂,2012(7):9-11.
[2]郭文波,田童童,童军茂,等.新疆棉籽油脱臭馏出物酶法甲酯化工艺研究[J].中国酿造,2015,34(2):109-113.
[3]MARINS P F,ITO V M,BATISTELLA C B,et al.Free fatty acid separation from egetable oil deodorizer distillate using molecular distillation process[J].Separation and Purification Technology,2006,48:78-84.
[4]李莉,张赛,何强,等.响应面法在试验设计与优化中的应用[J].实验室研究与探索,2015,34(8):41-45.
[5]张海涛,张文成,郑仁娟.响应曲面法优化迷迭香抗氧化剂提取工艺[J].食品科学,2011,32(12):64-67.
[2]郭文波,田童童,童军茂,等.新疆棉籽油脱臭馏出物酶法甲酯化工艺研究[J].中国酿造,2015,34(2):109-113.
[3]MARINS P F,ITO V M,BATISTELLA C B,et al.Free fatty acid separation from egetable oil deodorizer distillate using molecular distillation process[J].Separation and Purification Technology,2006,48:78-84.
[4]李莉,张赛,何强,等.响应面法在试验设计与优化中的应用[J].实验室研究与探索,2015,34(8):41-45.
[5]张海涛,张文成,郑仁娟.响应曲面法优化迷迭香抗氧化剂提取工艺[J].食品科学,2011,32(12):64-67.