|
KMID : 1024620000200010030
|
|
Food Science of Animal Resources
2000 Volume.20 No. 1 p.30 ~ p.35
|
|
|
Recycling of -Cyclodextrin Used for Cholesterol Removal from Egg Yolk
|
|
Yoo-Ick-Jong
Choi Sung-Yu
Park Woo-Mun
Jeon Ki-Hong
|
|
|
Abstract
|
|
|
|
The method used to remove cholesterol from egg by using -cyclodextrin was relatively stable and efficient. The aim of this study was to cost down by recycling -cyclodextrin used to remove cholesterol from egg yolk because -cyclodextrin was expensive. The solvents used to separate -cyclodextrin from -cyclodextrin complex containing egg yolk cholesterol were butanol, chloroform, ether, hexane, methanol, 2-propanol and their mixture. The ratio of solvent and complex varied from 2 : 1 to 10 : 1. The condition of mixing time and temperature varied from 30 to 60 and from 10 minutes to 3 hours to remove cholesterol from -cyclodextrin complex. When the ratio of choloroform and methanol was 1 : 1, the removal efficiency of cholesterol was 98.8%. The efficiency of cholesterol removal was improved when the ratio of solvent : complex increased to 4 : 1. When mixing time and temperature was up to for 1hr, at 50 respectively, the efficiency of cholesterol removal improved to 99%. It concluded that the efficiency of cholesterol removal of 50% renewed one contained -cyclodextrin were 81.1% while the cholesterol removal efficiency of 100% renewed -cyclodextrin was 24% if cholesterol removal efficiency of new -cyclodextrin were 100%.
|
|
|
KEYWORD
|
|
|
cholesterol, -cyclodextrin, egg yolk, recycling, renew
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|