The benefit of eating food in Banana Leaf.
These three awakens the digestive acids to digest the food that you are going to eat further. After that ginger curry and lemon pickle is served. This also helps in digestion. Then other curries, after that hot rice is served. When hot rice is put on banana leaf it gets sweltered.
Like green tea, banana leaves contain large amounts of poly phenols, including EGCG. They also contain poly phenol oxidase, an enzyme that produces L-DOPA, a treatment for Parkinson's disease. more
I wish to add to Raja Sahib's post regarding benefits of eating on banana leaf.
In Andhra Pradesh, in areas where banana leaves are not easily available, people used to eat on pattals stitched from a few green leaves of a type of tree which is called in Andhra as ' badam' The looks of the fruit of this tree is similar to that of badam. The leaves are large and about seven to eight leaves could form the size of large size pattal. Hot rice served on these green leafy plates would acquire an aroma of its own and probably some health benefits too of the chlorophyll in the leaves.
I also heard some stories of pattals stitched from pan leaves (the paan leafe available is south is different from the one available here in the north) with laung and the whole pattal used to be partaken as "Pan" to aid digestion and full medicinal benefits of paan. However, I cannot confirm the truth of this statement as I have not seen any one eating like that ! more