粉末油脂过氧化值测定中油脂提取方法的研究
|
摘要
建立了测定粉末油脂过氧化值中油脂的提取方法。利用丙酮-水(体积比1∶1)为溶剂,辅以超声破壁处理及加电解质后冷冻离心破乳,提油率可达70%以上。采用低温避光减压脱溶,有效避免了提取油脂过程对过氧化值结果的影响,从而可以反映粉末油脂真实质量水平。该方法提取成本低,使用低毒试剂,更为经济、环保,精密度良好,准确度较高,可应用于粉末油脂中过氧化值的测定。
A method for extracting oil from oil powder to determine the peroxide value was established. In the method,the oil extraction rate could reach more than 70% by using acetone-water (volume ratio1∶ 1) as solvent,assisted by ultrasonic treatment for wall breaking,adding electrolyte and freezing centrifugation for demulsification. The low temperature,light avoidance and desolventization under reduced pressure in the method could effectively avoid the influence of oil extraction process on peroxide value results,which could reflect the true quality level of oil powder. The method had the advantages of low extraction cost,low toxicity reagent,more economical,environmentally friendly,good precision and high accuracy,and could be applied in the determination of peroxide value of oil powder.
A method for extracting oil from oil powder to determine the peroxide value was established. In the method,the oil extraction rate could reach more than 70% by using acetone-water (volume ratio1∶ 1) as solvent,assisted by ultrasonic treatment for wall breaking,adding electrolyte and freezing centrifugation for demulsification. The low temperature,light avoidance and desolventization under reduced pressure in the method could effectively avoid the influence of oil extraction process on peroxide value results,which could reflect the true quality level of oil powder. The method had the advantages of low extraction cost,low toxicity reagent,more economical,environmentally friendly,good precision and high accuracy,and could be applied in the determination of peroxide value of oil powder.
引文
[1]赵国志,刘喜亮,刘智锋.粉末油脂技术与产品特性[J].粮食与油脂,2005(10):3-6.
[2]徐振波,梁军,陈丽丽,等.微胶囊化粉末油脂的研究与应用进展[J].食品工业科技,2014,35(5):392-395.
[3]孙健平,姜子涛,李荣.纳米微胶囊技术及其在食品中的应用[J].食品研究与开发,2010,31(5):184-187.
[4]内蒙古蒙牛乳业(集团)股份有限公司.提取植脂末中脂肪及测定植脂末过氧化值的方法:CN201510898541. 5[P]. 2016-05-11.
[5]江苏权正检验检测有限公司.一种植脂末过氧化值的测定方法:CN201810190532. 4[P]. 2018-09-11.
[6]吴姣,郑为完,周德红,等.粉末油脂过氧化值测定方法的研究[J].中国油脂,2006,31(7):54-56.
[7]凌德娣,周亚楠,黄昕畑,等.中性蛋白酶提取植脂末油脂工艺的研究[J].中国油脂,2018,43(8):119-121.
[8]中国医药集团上海化学试剂公司.试剂手册[M]. 3版.上海:上海科学技术出版社,2002.
[9]武汉大学.分析化学(上册)[M]. 5版.北京:高等教育出版社,2006:39-74.
[2]徐振波,梁军,陈丽丽,等.微胶囊化粉末油脂的研究与应用进展[J].食品工业科技,2014,35(5):392-395.
[3]孙健平,姜子涛,李荣.纳米微胶囊技术及其在食品中的应用[J].食品研究与开发,2010,31(5):184-187.
[4]内蒙古蒙牛乳业(集团)股份有限公司.提取植脂末中脂肪及测定植脂末过氧化值的方法:CN201510898541. 5[P]. 2016-05-11.
[5]江苏权正检验检测有限公司.一种植脂末过氧化值的测定方法:CN201810190532. 4[P]. 2018-09-11.
[6]吴姣,郑为完,周德红,等.粉末油脂过氧化值测定方法的研究[J].中国油脂,2006,31(7):54-56.
[7]凌德娣,周亚楠,黄昕畑,等.中性蛋白酶提取植脂末油脂工艺的研究[J].中国油脂,2018,43(8):119-121.
[8]中国医药集团上海化学试剂公司.试剂手册[M]. 3版.上海:上海科学技术出版社,2002.
[9]武汉大学.分析化学(上册)[M]. 5版.北京:高等教育出版社,2006:39-74.