Method for producing a sucrose fatty acid ester

The present invention provides a method for producing a high sugar fatty acid ester selectivity ratio of monoester. A method for manufacturing a sugar fatty acid ester includes the steps of preparing an aqueous solution containing a sugar and a basic catalyst, an aqueous solution obtained in the process, the fatty acid alkali metal salt, and a fatty acid ester are melted a step of mixing to produce a sugar fatty acid ester by heating with stirring under reduced pressure, comprising a step of generating a sugar fatty acid ester, a preceding step of removing water from the mixture, the ester after that step exchange has a subsequent step of performing, in a subsequent step, by applying a microwave, the mixture is heated to be less than the decomposition temperature of the sugar. .BACKGROUND