Refrigerator Gasket Where Is The Mildew Source Coming From On A Refrigerator Gasket? ?

Where is the mildew source coming from on a refrigerator gasket? ? - refrigerator gasket

I recently into a new apartment, the equipment includes all moved. After you here to live one or two months, I began a slight concentration of mold for the construction of the refrigerator notice and the seal of the freezer. I wonder if he could do something to emulsify the problem. Clean it from time to time, but I wish you an idea of where I can be the source. I apologize if this is a stupid question that has been the loss of his time. Thank you very much!

Jake