thank you, Daintree. Since you say the seeds are bitter, this means you chew them to know their taste. So, they cannot be so hard as, for example, opuntia cactus seeds (Opuntia Engelmannii, see my profile picture) which are too hard to be chewed by any human.
Today i was looking in my yard for a sunny place to plant Akebia, well there is a spot where Akebia can be planted to receive plenty of sunlight, but i wonder, maybe in zone 9b can they grow and fruit well in half-shade?