Detection and Enumeration of Staphylococcus aureus in Homemade Ice Cream Sold in Select Public Elementary Schools

This study sought to assess the presence of S. aureus in homemade ice cream sold in select public elementary schools. The objectives of the study were to detect the presence of S. aureus in homemade ice cream using Spread Plate Method and to count S. aureus colony in homemade ice cream samples as a basis to determine the safety of this food item. The test was conducted by the RSTL-DOST Region X. In the month of January, no typical colonies of S. aureus were detected on BPA. During the month of February and March, typical colonies were observed. However, when these colonies were subjected to Confirmatory Test, it yielded negative for the presence of S. aureus. Biochemical test also revealed absence of S. aureus in the ice cream samples. Presence of S. aureus in ice cream was not confirmed. However, the researchers cannot report that the food item is safe for consumption because of the presence of another growth not typical of S. aureus. These bacteria might be harmful.

Keywords: Staphylococcus aureus, homemade ice cream