You can't take back what you've said while on-the-record (you are on-the-record unless you have jointly agreed otherwise... not to mention clearly agree on what 'on background' or 'off-the-record' means to each of you).
Next time, seriously, read up on or take some media training before speaking with a journalist unless you are open to your words being repeated, summarized, abbreviated, etc.
Next time, seriously, read up on or take some media training before speaking with a journalist unless you are open to your words being repeated, summarized, abbreviated, etc.