分子蒸馏富集石榴籽油脂肪酸乙酯中共轭亚麻酸乙酯的研究
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摘要
采用分子蒸馏技术对石榴籽油脂肪酸乙酯中的共轭亚麻酸乙酯进行富集。通过单因素实验,对影响分子蒸馏纯化共轭亚麻酸乙酯的4个因素,即预热温度、进料速率、刮板转速和蒸馏温度进行了优化,然后经过两级分子蒸馏富集共轭亚麻酸乙酯。在工作压力为1.0×10-3k Pa的条件下,最终确定了纯化共轭亚麻酸乙酯的最佳工艺条件为:预热温度70℃,进料速率2 m L/min,刮板转速120 r/min,一级蒸馏温度120℃和二级蒸馏温度160℃。在最佳工艺条件下,共轭亚麻酸乙酯含量从蒸馏前的80.68%提升到了95.23%。
The technology of enriching conjugated linolenic acid ethyl ester from pomegranate seed oil fatty acid ethyl ester by molecular distillation was studied. The influence factors of molecular distillation enriching conjugated linolenic acid ethyl ester( preheating temperature,feed rate,scrape speed and distillation temperature) were analyzed by single factor experiment. The optimal operation conditions were determined as follows: operation pressure 1. 0 × 10-3 k Pa,preheating temperature 70 ℃,feed rate 2 m L/min,scrape speed 120 r/min,distillation temperatureⅠ120 ℃ and distillation temperatureⅡ160 ℃. Under these conditions,the content of conjugated linolenic acid ethyl ester increased from 80. 68% before distillation to 95. 23%.
The technology of enriching conjugated linolenic acid ethyl ester from pomegranate seed oil fatty acid ethyl ester by molecular distillation was studied. The influence factors of molecular distillation enriching conjugated linolenic acid ethyl ester( preheating temperature,feed rate,scrape speed and distillation temperature) were analyzed by single factor experiment. The optimal operation conditions were determined as follows: operation pressure 1. 0 × 10-3 k Pa,preheating temperature 70 ℃,feed rate 2 m L/min,scrape speed 120 r/min,distillation temperatureⅠ120 ℃ and distillation temperatureⅡ160 ℃. Under these conditions,the content of conjugated linolenic acid ethyl ester increased from 80. 68% before distillation to 95. 23%.
引文
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[2]吕俊丽,刘邻渭.石榴酸的研究进展[J].中国油脂,2010,35(11):44-47.
[3]IGARASHI M,MIYAZAWA T.Newly recognized cytotoxic effect of conjugated trienoic fatty acids on cultured human tumor cells[J].Cancer Lett,2000,148(2):173-179.
[4]KIM N D,MEHTA R,YU W,et al.Chemopreventive and adjuvant therapeutic potential of pomegranate(Punica granatum)for human breast cancer[J].Breast Cancer Res Trt,2002,71(3):203-217.
[5]GASMI J,SANDERSON J T.Jacaric acid and its octadecatrienoic acid geoisomers induce apoptosis selectively in cancerous human prostate cells:a mechanistic and 3-D structure-activity study[J].Phytomedicine,2013,20(8):734-742.
[6]田嘉荣,吴怀春,程华.葡萄籽油对高脂大鼠血脂水平的影响[J].营养学报,1992,14(2):130-133.
[7]NATHAN C.Points of control in inflammation[J].Nature,2002,420(6917):846-852.
[8]李婷婷,吴彩娥,许克勇,等.分子蒸馏技术富集猕猴桃籽油中α-亚麻酸的研究[J].农业机械学报,2007,38(5):96-99.
[9]吴彩娥,许克勇,李元瑞,等.尿素包合法富集猕猴桃籽油中α-亚麻酸[J].农业机械学报,2005,36(5):57-60.
[10]张方英.低温冷冻结晶法结合尿素硅胶柱法制备高纯度α-亚麻酸乙酯[D].新疆石河子:石河子大学,2012.
[11]胡晓军,郭忠贤,赵毅,等.冷冻丙酮法提纯α-亚麻酸的研究[J].中国麻业科学,2005,27(2):89-93.
[12]杨克迪,胡小明,黄海基,等.硝酸银络合萃取蚕蛹油α-亚麻酸酯[J].中国油脂,2008,33(1):30-32.
[13]卢成英,雷华平,张敏,等.湘西产枳椇籽亚麻酸超临界CO2萃取研究[J].食品科学,2006,27(12):322-325.
[14]郑弢,许松林.分子蒸馏提纯α-亚麻酸的研究[J].化学工业与工程,2004,21(1):25-28.
[15]车怀智,魏冰.分子蒸馏法α-亚麻酸乙酯的中试制备[J].陕西科技大学学报,2009,27(5):68-71.