The striker came off the bench and netted to put the Bianconeri 2-1 up, but within 60 seconds Umut Bulut had snatched a 2-2 draw.
"It is a shame, because we were 2-1 up with four minutes to go," Quagliarella told Sky Sport Italia.
"I think they had just two shots on goal, then we were in control for the rest of the game, so if there was a team that deserved to win it was Juventus.
"It leaves a bitter taste that you push so hard and finally get through, then they score on the next move."
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