发明名称 |
SELEKTIVE TRANSESTERIFIKATION VON STANOLE IN MISCHUNGEN DIE STEROLE UND STANOLE ENTHALTEN |
摘要 |
The invention is related to a process for selectively transesterifying stanols in mixtures comprising sterols and stanols, and a process for separating sterols from said mixtures. The process of selective transesterification comprises the forming of a reacting mixture by contacting a selective lipase with a reactant mixture comprising sterols and stanols and an ester selected from the group consisting of esters of an organic acid with a short chain aliphatic alcohol. The transesterifying is carried out in agitated reactors at pressures below atmospheric pressure and temperatures from 30 to 90 DEG C The process for separating a fraction comprising sterols from a mixture comprising sterols and stanols comprises the steps: a) forming a reacted mixture by separating the selective lipase from the reacting mixture, and b) separating from the reacted mixture a fraction comprising sterols Recovering from the reacted mixture of a fraction comprising sterols comprise one or more distillation steps at reduced pressure or one or more distillation and crystallization steps. |
申请公布号 |
AT344329(T) |
申请公布日期 |
2006.11.15 |
申请号 |
AT20020255546T |
申请日期 |
2002.08.08 |
申请人 |
HAERTING, THOMAS FRANCIS |
发明人 |
DIAZ, MIGUEL ANGEL FUENZALIDA;BASTERRECHEA, MARTINEZ IRENE;ROJAS, MARKOVITS ALEJANDRO;SCHERSL, MARKOVITS ENDRE |
分类号 |
C12P33/06;C12P7/64;C12P33/00;C12P33/02;(IPC1-7):C12P33/00 |
主分类号 |
C12P33/06 |
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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