Buy Moinmoin Leaves x10 on gidimartng.com. Moinmoin Leaves x10: The scientific name for Moin Moin leaves is Thaumatococcus daniellii and it is not the same thing as banana leaves. It is called ewe eran (loosely translated to goat/sheep/ram leaves) in Yoruba. This is probably because they are sweet and goat/sheep/ram love then. In Ibo, they are called Uma leaves. Moi moi leaves contain a sweet protein called thaumatin which is used in the development of sweeteners and turns sour food sweet. This explains why moin moin steamed in leaves taste better than those made in anything else. The leaves are indigenous to the rain forests of west Africa, but have also been introduced to Australia and Singapore. To use it, rinse the leaves thoroughly, to get rid of dirt. Pair the leaves in two. A smaller one and a larger one. Flip the leaves over, so that the spine is facing you. With one hand, flip the right half of the leaf over the spine. let it lie over the spine, and wrap the other half of the leaf over it forming a v-shaped funnel. Make sure that the tail end of the leaf, properly wraps or folds around the tail and is tucked in well.