食品科学 ›› 1999, Vol. 20 ›› Issue (6): 38-42.

• 工艺技术 • 上一篇    下一篇

超临界二氧化碳的萃取压力和时间对蛋黄粉中胆固醇脱除的影响

 张佳程,  骆承庠,  卢明春,  宋建国,  张福琪,  包永明, 王世龙   

  1.  河北农业大学食品系; 东北农业大学食品系!哈尔滨; 大连轻工学院食工系
  • 出版日期:1999-06-15 发布日期:2011-12-09

ZHANG  Jia-Cheng,   Luo-Cheng-Xiang,   Lu-Ming-Chun,   Song-Jian-Guo,   Zhang-Fu-Qi,   Bao-Yong-Ming, WANG  Shi-Long   

  • Online:1999-06-15 Published:2011-12-09

摘要:  研究了在萃取温度为40℃时,超临界二氧化碳的萃取压力(20~30MPa)和萃取时间(1~4h)对蛋黄粉中胆固醇脱除效果的影响。试验结果表明,在萃取压力为30Mpa时,超临界二氧化碳对蛋黄粉中胆固醇的选择性脱除作用效果最佳。从蛋黄粉成分在萃取过程中的动态变化来看,萃取时间不改变萃取压力对胆固醇的选择性;但是,随着萃取时间的延长,胆固醇的脱除率会大大增加。

关键词:  , 超临界二氧化碳, 胆固醇, 蛋黄

Abstract: Removal of cholesterol from egg yolk powder was investigated with supercritical carbon dioxide extractionat 40℃/20-30MPa for 1 ~4h.The results showed that supercritical carbon dioxide could remove cholesterol from eggyolk pox,,der with the best selectivity at 30MPa .phospholipids and protein were concentrated under this condition.Andextraction time did not change the pressure selectivity for cholesterol during the extraction procedure,but cholesterolremoval ratio was greatly increased with extraction time.

Key words:  , Supercritical carbon dioxide Cholesterlo Egg yolk;