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    • 6. 发明公开
    • Treatment of gelling agents
    • Behandlung von Geliermitteln。
    • EP0353798A2
    • 1990-02-07
    • EP89201745.0
    • 1989-06-30
    • UNILEVER N.V.UNILEVER PLC
    • Barmentlo, BartSlater, Nigel Kenneth Harry
    • C09H3/02A23L1/0562
    • C09H3/02A23L29/284
    • The invention is concerned with treatment of gelatins, so as to remove or reduce off-flavours. It has been determined that the off flavour may be reduced by membrane filtration to remove a low-molecular weight fraction.
      The invention provides gelatine substantially without a low molecular weight fraction and a process for the purification of gelatine which comprises removal of a low-molecular weight fraction by membrane filtration.
      While it is difficult to be precise about the substances responsible for the off-flavour, it is believed that 4- and 5-methyl indane are removed by the filtration. Accordingly, a further aspect of the present invention provides gelatine substantially free of 4- or 5-methyl indane, and a gelatine preparable by membrane filtration under such conditions as to substantially remove 4- and 5-methyl indane. While it is not confirmed that the methyl indanes are the per se cause of the off flavour it is proposed that the off flavour promoting species are removed under conditions which also remove the methyl indanes.
    • 本发明涉及明胶的处理,以除去或减少异味。 已经确定通过膜过滤可以减少脱气风味以除去低分子量级分。 本发明提供基本上没有低分子量级分的明胶和用于纯化明胶的方法,其包括通过膜过滤除去低分子量级分。 虽然对负责异味的物质难以准确地说明,但据信通过过滤除去4-和5-甲基二氢化茚。 因此,本发明的另一方面提供基本上不含4-或5-甲基二氢化茚的明胶,以及可在基本上除去4-和5-甲基茚满的条件下通过膜过滤制备的明胶。 虽然不确定甲基茚满是本身造成的风味,但是提出在除去甲基茚满的条件下除去风味促进物质。