发明名称 |
STABLE VITAMIN A |
摘要 |
A process for purifying vitamin A consisting of heating a vitamin A preparation in an inert atmosphere, at a temperature below 170 DEG C. and a pressure of less than 4 mm of mercury, said heating taking place in a vessel shielded from light is disclosed. The vitamin A obtained from this process is mixed with from 0.5:1 to 2:1 parts of tocopherol to vitamin A. The vitamin A and tocopherol mixture can be encapsulated in acacia gum, starch, pectins or other suitable materials. When the vitamin A is encapsulated, the level of tocopherol required is less, preferably from 0.05:1 to about 1:1 parts of tocopherol to vitamin A is used in an encapsulated vitamin A composition. Other antioxidants can be added. |
申请公布号 |
EP0775111(A1) |
申请公布日期 |
1997.05.28 |
申请号 |
EP19950923812 |
申请日期 |
1995.06.09 |
申请人 |
THE PROCTER & GAMBLE COMPANY |
发明人 |
SARAMA, ROBERT, JOSEPH;WEHMEIER, THOMAS, JOSEPH;SEVENANTS, MICHAEL, ROBERT;SANDERS, ROBERT, ALAN |
分类号 |
A23L33/155;A61K9/48;A61K31/07;C07C;C07C29/76;C07C29/94;C07C33/14;C07C403/08;C07C403/12;C07C403/14 |
主分类号 |
A23L33/155 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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