Abstract
Recently, analytical method of glycidyl fatty acid esters (GE) has been developed extensively in Japan, the United States and the European Union. In 2010, direct method to quantify GE in edible oil by using LC-MS was reported in Japan. After some modifications were made, AOCS and JOCS initiated joint collaborative study (24 organizations in nine countries) in 2011 in order to evaluate the accuracy, the reproducibility and the simplicity of the method. Since the collaborative study provided acceptable results, the direct method of GE was registered as joint AOCS/JOCS official method.