Hi Anita, titoki seed is renowned for not being suitable to be stored. It is referred to as perishable often. However I know of one situation where seed from the previous season was found on a footpath then sewn and a good germination rate was achieved. So, if you wish to try to store it, remove all of the fleshy red bit allow to dry for a couple of days then store in a cool dark situation in a envelope and you may have some success. I certainly can't guarantee results but it might be worth a try.