Where is it found in the Bible that people were not allowed to eat blood after the flood?

God, in speaking to Noah, said:

"Everything that lives and moves will be food for you. Just as I gave you the green plants, I now give you everything.4 "But you must not eat meat that has its lifeblood still in it.5 And for your lifeblood I will surely demand an accounting. I will demand an accounting from every animal. And from each man, too, I will demand an accounting for the life of his fellow man." (Genesis 9:3-5, New International Version 1984)