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    • 4. 发明授权
    • Enzymatic process for interesterification of fats and oils using
distillation
    • 使用蒸馏脂肪和油脂肪酶的酶法
    • US6090598A
    • 2000-07-18
    • US791810
    • 1997-01-30
    • Kotaro YamaguchiMasayuki FukazawaTadahisa ShimodaTsugio Izumi
    • Kotaro YamaguchiMasayuki FukazawaTadahisa ShimodaTsugio Izumi
    • C12P7/64C12P7/62
    • C12P7/6454
    • There is disclosed a process for modifying fats and oils by an interesterification reaction to efficiently increase concentrations of the desired triglycerides. In the process, a step for subjecting a fat or oil to an interesterification reaction with a fatty acid or its lower alcohol ester in the presence of an enzyme catalyst and then a step for removing the fatty acid or its lower alcohol ester by distillation are repeated in multiple stages. The process is characterized by leaving the fat or oil and a feedstock fatty acid or its ester selectively in the distillation steps preceding the one in the final stage. According to this process, the amount of the fatty acid or its ester to be used can be reduced and the formation of by-products can be inhibited, thereby enabling to increase concentrations of the desired triglycerides more efficiently than conventional multistage interesterification processes.
    • 公开了通过酯交换反应来改善脂肪和油的方法,以有效地提高所需甘油三酸酯的浓度。 在此过程中,重复步骤:在酶催化剂存在下使脂肪或油与脂肪酸或其低级醇酯进行酯交换反应,然后通过蒸馏除去脂肪酸或其低级醇酯的步骤 在多个阶段。 该方法的特征在于在最后阶段之前的蒸馏步骤中选择性地留下脂肪或油和原料脂肪酸或其酯。 根据该方法,可以减少脂肪酸或其酯的用量,并且可以抑制副产物的形成,从而能够比常规多级酯交换方法更有效地提高所需甘油三酯的浓度。