Yes, you can. Swap the lemon for either fresh orange or lime by using the same quantity of zest and juice. For the zest, depending on the size of your orange, you may need less than one large orange to get the two tablespoons of zest. For the lime, you will need more than one lime to get the two tablespoons of zest. The same goes for the juice, depending on the size of each fruit, just make sure you have the same quantities as what is used for the lemon.