Invention Grant
US09173818B2 Method for preparing stable-type vitamin A microcapsules continuously
有权
连续制备稳定型维生素A微胶囊的方法
- Patent Title: Method for preparing stable-type vitamin A microcapsules continuously
- Patent Title (中): 连续制备稳定型维生素A微胶囊的方法
-
Application No.: US13980126Application Date: 2011-03-25
-
Publication No.: US09173818B2Publication Date: 2015-11-03
- Inventor: Hong Yin , Jianfeng Chen , Zhirong Chen , Jiexin Wang , Yong Qi , Hong Zhao , Lifang Shi , Dan Qiu
- Applicant: Hong Yin , Jianfeng Chen , Zhirong Chen , Jiexin Wang , Yong Qi , Hong Zhao , Lifang Shi , Dan Qiu
- Applicant Address: CN Yulin, Xinchang Shaoxing, Zhejiang
- Assignee: ZHEJIANG NHU COMPANY LTD
- Current Assignee: ZHEJIANG NHU COMPANY LTD
- Current Assignee Address: CN Yulin, Xinchang Shaoxing, Zhejiang
- Agency: Harness, Dickey & Pierce, P.L.C.
- International Application: PCT/CN2011/072190 WO 20110325
- International Announcement: WO2012/129765 WO 20121004
- Main IPC: A61J3/07
- IPC: A61J3/07 ; A61K9/00 ; B29B9/12 ; A61K9/16 ; A61K9/50 ; A61K31/07 ; A61K9/51

Abstract:
A method for continuously preparing stable-type vitamin A microcapsules is disclosed. The method comprises the following steps: adding vitamin A crystals and an antioxidant into a crystal melter continuously according to a certain ratio under the protection of nitrogen to prepare vitamin A melting oil containing the antioxidant; pumping the above melting oil into a high gravity rotary packed bed emulsifier with a liquid distributor by a pump, and pumping aqueous solution containing gellable modified starch into the above high gravity rotary packed bed emulsifier after deoxidation treatment to obtain vitamin A emulsion at the outlet of the high gravity rotary packed bed emulsifier; and atomizing and spraying the emulsion continuously in a cooled starch bed for granulating, and performing fluidization drying and gelation treatment in a fluidized bed by taking nitrogen as a drying medium to obtain the stable-type vitamin A microcapsules. Above method has the advantage of capability of continuous production, and has good embedding effect due to adopting the gellable modified starch, granulating and gelation treatment, thus the product has good storage stability.
Public/Granted literature
- US20140001662A1 METHOD FOR PREPARING STABLE-TYPE VITAMIN A MICROCAPSULES CONTINUOUSLY Public/Granted day:2014-01-02
Information query