Sponge cake is conventionally made fresh daily due to its
perishable nature. The mold-free shelf life of preservative-free
bakery is limited to only a few days. Extending the shelf life of
sponge cakes is challenging. Aside from rapid microbial degradations,
a slower, complex set of deleterious physical and chemical
changes associated with organoleptic characteristics also determines
cake shelf life, which complicates efforts to extend both
safety and quality. Crucial phenomena that lead to freshness loss of
sponge cakes are staling and lipid oxidation