There is provided a biocatalyst solvent which is capable of dissolving a biocatalyst in a liquid state while maintaining the activity of the biocatalyst at a high concentration from a low temperature to a high temperature, and is capable of storing the biocatalyst for a long time period; and a biocatalyst solution using the biocatalyst solvent. Disclosed is a biocatalyst solvent which consists of an ionic liquid including a quaternary ammonium cation represented by the following Formula (I) and an anion:
[Chemical Formula 1]
N+[Ra]n[Rb]4-n (I)
wherein Ra's each independently represent a hydroxyalkyl group having one or more hydroxyl groups and an a linear or branched alkyl moiety having 1 to 10 carbon atoms, in which the alkyl moiety may contain an oxygen atom; a carboxyalkyl group having one or more carboxyl groups and a linear or branched alkyl moiety having 1 to 10 carbon atoms, in which the alkyl moiety may contain an oxygen atom; or a hydroxycarboxyalkyl group having one or more hydroxyl groups, one or more carboxyl groups and a linear or branched alkyl moiety having 1 to 10 carbon atoms, in which the alkyl moiety may contain an oxygen atom; Rb's each independently represent a hydrogen atom, or a linear or branched alkyl group having 1 to 5 carbon atoms; and n represents an integer from 1 to 4.
本发明提供了一种
生物催化剂溶剂,它能够在液态下溶解
生物催化剂,同时使
生物催化剂的活性从低温到高温一直保持在高浓度状态,并且能够长时间储存
生物催化剂;还提供了一种使用该
生物催化剂溶剂的
生物催化剂溶液。本发明公开了一种
生物催化剂溶剂,它由一种
离子液体组成,该
离子液体包括由下式(I)代表的季
铵盐阳离子和阴离子:
[
化学式 1]
N+[Ra]n[Rb]4-n (I)
其中 Ra 各自独立地代表一个羟烷基,该羟烷基具有一个或多个羟基和一个具有 1 至 10 个
碳原子的直链或支链烷基,其中烷基可含有一个
氧原子;一个羧烷基,该羧烷基具有一个或多个羧基和一个具有 1 至 10 个
碳原子的直链或支链烷基,其中烷基可含有一个
氧原子;或具有一个或多个羟基、一个或多个羧基和一个具有 1 至 10 个
碳原子的直链或支链烷基的羟基羧烷基,其中烷基可含有一个
氧原子;Rb 各自独立地代表一个
氢原子或一个具有 1 至 5 个
碳原子的直链或支链烷基;n 代表 1 至 4 的整数。