JP2011026567A5 - - Google Patents

Claims (9)

A step of transesterifying the fat and oil containing the steryl glucoside in a dissolved state with a lower alcohol to obtain a reaction mixture, and then a step of precipitating steryl glucoside in the reaction mixture ;
Separating the steryl glucoside from the reaction mixture, the method for producing fatty acid lower alkyl ester, glycerin and steryl glucoside ,
A method for producing a fatty acid lower alkyl ester, glycerin and steryl glucoside, wherein the transesterification reaction is performed until the conversion rate of fatty acid derived from fats and oils to a fatty acid lower alkyl ester reaches 90% or more . Step (a): A step of transesterifying the fat and oil containing steryl glucoside in a dissolved state with a lower alcohol,
Step (b): a step of oil-water separation of the reaction mixture obtained from the step (a),
Step (c): a step of transesterifying the oil phase obtained in step (b) with a lower alcohol,
Step (d): a step of precipitating steryl glucoside in the reaction mixture obtained from step (c),
Step (e): a step of separating steryl glucoside from the reaction mixture obtained from step (d),
Step (f): The method for producing a fatty acid lower alkyl ester, glycerol and steryl glucoside according to claim 1, comprising a step of oil-water separation of the reaction mixture separated in step (e) to obtain a fatty acid alkyl ester and glycerol. The reaction mixture obtained in the transesterification reaction step is a step of obtaining a mixture separated into two phases in a mixture containing a fatty acid lower alkyl ester, unreacted oil, glycerin, lower alcohol, and steryl glucoside,
The fatty acid lower alkyl ester, glycerin and steryl according to claim 1 or 2, wherein the step of precipitating steryl glucoside in the reaction mixture is a step of precipitating a white precipitate of steryl glucoside in the middle of the two phases. Production method of glucoside. The method for producing a fatty acid lower alkyl ester, glycerin and steryl glucoside according to claim 3, wherein the two phases are a phase containing a fatty acid methyl ester and a phase containing glycerin. The method for producing fatty acid lower alkyl ester, glycerin and steryl glucoside according to any one of claims 1 to 4, wherein the step of precipitating steryl glucoside in the reaction mixture is a step of lowering the temperature of the reaction mixture. . The step of precipitating steryl glucoside in the reaction mixture is a step of adjusting the temperature of the reaction mixture to 30 to 35 ° C, wherein the fatty acid lower alkyl ester, glycerin and stearic acid according to any one of claims 1 to 4. A method for producing rilglucoside. The method for producing a fatty acid lower alkyl ester, glycerin and steryl glucoside according to any one of claims 1 to 6, wherein the step of separating steryl glucoside from the reaction mixture is a step of filtering and separating the reaction mixture. . The fatty acid lower of any one of claims 1 to 7 , comprising a step of removing the lower alcohol from the reaction mixture obtained in the transesterification reaction step until the lower alcohol concentration in the reaction mixture becomes 8% by mass or less. A process for producing alkyl esters, glycerin and steryl glucoside. The method for producing a fatty acid lower alkyl ester, glycerin and steryl glucoside according to any one of claims 1 to 8 , wherein the transesterification reaction step is a step performed using a solid acid catalyst.