DAN QIU,ZHIRONG CHEN,LIFANG SHI,JIANDONG LI,LINPU CAI,YUFENG LIANG,MINCONG CAI,LIFENG ZHAO
申请号：
US15740777
公开号：
US20180184689A1
申请日:
2016.06.21
申请国别(地区):
US
年份:
2018
代理人:
摘要：
The present invention discloses a method for preparing controlled release type lutein feed additive. Steps: lutein extract, glycerol and fat are mixed and dissolved, then alkali liquor is dropped under condition of mechanical stirring and sheering emulsification to allow the lutein to be fully saponified. Then fat is added and alkaline saponification is conducted, adjusting the viscosity and neutralizing and conducting spray granulation to the mixed liquor to obtain controlled release lutein feed additive. By utilizing the combined effects of glycerol and fat, the present invention realizes saponification and microcapsule formation using simple method. Comparing to conventional absorption processes, the present invention effectively improves the chemical stability of lutein in light, heating and acid environment, allowing the controlled release type lutein feed additive product to barely release in gastric fluid environment but fully release in intestinal fluid environment, hence achieving higher bioavailability.
