亚临界醋酸法水解皂脚提取脂肪酸的研究
详细信息Study on extraction fatty acids from hydrolyzing soapstock by subcritical acetic acid
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摘要: 亚临界的条件下在高压磁力搅拌釜内,采用油脂厂精炼过程中的副产物皂脚,利用弱酸醋酸溶液的中和作用,使反应向正反应方向进行,从而制得有用物质脂肪酸。考察了料液比、反应温度、反应时间、反应压强对皂脚水解率的影响,采用单因素和响应面优化的方法,最终确定反应最优条件为:料液比为1:2.2,反应温度为290℃,反应时间为45min,反应压强为14MPa,在最优条件下脂肪酸提取率为96.5%。亚临界醋酸水解法与传统提取方法相比,可明显缩短水解时间,无需添加强化学催化剂。Abstract: Using the environmentally friendly reaction solvent (acetic acid) to the hydrolysis the soapstock in the high-pressure magnetic agitator, to study the solid-liquid ratio, reaction temperature, reaction time, reaction pressure on the rate of hydrolysis of soapstock.Using the method of univariate and response surface optimization to finalize the anti-optimal conditions were:liquid ratio was 1:2.2, the reaction temperature was 290℃, the reaction time was 45min, the reaction pressure was 14MPa, the fatty acids extraction rate in the optimal conditions was 96.5%.Compared with the traditional methods, the method of sub-critical acetic acid hydrolysis could significantly shorten the extraction time without chemical catalyst and acid, ensure the purity of the product, so that was green.
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[1] 顾剑飞, 侯晓权, 刘文生.油脚提取豆油脂肪酸工艺技术[J].化学工程师, 2001, 83 (2) :54-55. [2] 马传国.油脂脱胶的理论与实践[J].中国油脂, 2002, 27 (1) :24-26. [3] 陆启玉.油脂化工产品生产技术[M].北京:化学工业出版社, 2003. [4] 徐绍红, 杨丽云, 王颖.从棉籽油皂脚中回收脂肪酸工的改进[J].平原大学学报, 2000, 17 (4) :14. [5] 王学法.用菜籽油脚皂脚制取芥酸、油酸[J].适用技术市场, 1992 (1) :9-11. [6] 马玉璞.油脂常压催化水解的再研究[J].中国油脂, 1999 (2) :321-325. [7] 罗明良, 蒲春生, 卢凤纪, 等.利用植物油下脚料制备烷醇酰胺型驱油剂[J].石油学报, 2002, 18 (4) :6-13. [8] 盛国华.亚临界水提取技术在有效利用食品副产物中的应用[J].中国食品添加剂, 2009 (2) :127-129. [9] 赵健, 赵国华.亚临界水萃取技术及其在食品方面的应用[J].食品工业科技, 2009, 30 (4) :364-367. [10] Holliday R L, King J W, List G R.Hydrolysis of vegetable oils insub-and supercritical water[J].Industrial EngineeringChemical Research, 1997, 36 (3) :932-935.
[11] 陈良, 吕秀阳.近临界水中大豆油无催化水解反应动力学研究[J].农业工程学报, 2006, 22 (4) :230-232. [12] PINTO J S S, LANCAS F M.Hydrolysis of corn oil usingsubcriticalwater[J].J Braz Chem Soc, 2006, 17 (1) :85-89.
[13] 孙辉, 吕秀阳, 陈良.不同植物油脂在近临界水中水解反应动力学的比较[J].化工学报, 2007, 58 (4) :925-929. [14] 王英雄, 侯相林, 王国富, 等.不同脂肪酶催化亚麻油水解反应性能的比较[J].中国油脂, 2003, 28 (8) :54-56. [15] AYALA R S, LUQUE de CASTRO M D.Continuous subcritical water extraction as a useful tool for isolation of edible essential oils[J].Food Chemistry, 2001, 75 (1) :109-113.
[16] JIMENEZ-CARMONAA M M, UBERAB J L, LUQUE de CASTROA M D.Comparison of continuous subcritical water extraction and hydrodistillation of marjoram essential oil[J].Journal of Chromatogra-phy A, 1999, 855 (2) :625-632.
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