Ooba Sparkling Hibiscus Kiwi

Our fuzzy little friends the kiwis (no I'm not talking about the indigenous people) are always a nice little treat in their fruit form. I don't know anyone who would ever turn down a kiwi if offered. The problem is that when this little guy gets transformed into a soda it's flavor somehow gets transformed into something resembling green apple. It's not 100% green apple, but the similarities are definitely there, and it only vaguely resembles the great fruit it once was. It comes in waves. First a very brief kiwi taste, then the apple and then a milder kiwi flavor returns in the aftertaste. I don't understand the science behind it and I'm wearing a white lab coat and everything. My hypothesis would normally be that it has something to do with the hibiscus in it, but I've had a different kiwi soda recently that had a similar taste. I guess the answer was lost hundreds of years ago with the ancients. It's sad too because I really like kiwi, and I'm not a big fan of green apple flavored things so this was kind of ruined for me.