Kemojo sponge cake is a traditional specialty food originating from Riau. In terms of nutritional value, wet kemojo sponge cake is high in carbohydrates, namely 74.21%, and low in other nutritional content, where the protein content in kemojo sponge cake is only 5.05%, water 8.23%, ash 1.23%, and fat 11.28% with a shelf life of around 4 days at room temperature. To increase the shelf life, it i…