The sentence lacks context, but it seems to be about the distinction between something that contains real fruit and something that is merely fruit flavoured. On the internet I found this phrase:
Hjemmelavede æbleskiver med rigtige æbler i er lette at lave = Homemade donuts with real apples are easy to make
'Right' works to modify an adjective with a similar meaning, e.g. "a right nice apple". But it only works in some regions and is not considered proper English.
It can't be used to modify a noun with this meaning. "The right apple" means an apple previously stipulated. "A right apple" is not possible as far as I can think of right now at the moment.