作者: Franklin Pringgosusanto , Adam J. Toth , Keith Hans , Cory M. Bryant , June Qi-Zheng
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摘要: The present invention pertains to a method for preparing hydrogel in dry conditions that contains high loading of the active ingredient, preferably flavor or fragrance molecules. compositions are initially solid form and extruded sized desired shape size. actual is formed in-situ from uptake water suspending medium. hydrogels have following properties: contain up 40% ingredient prior uptake; retain color particle identity moisture systems; at elevated temperature.