Qxygen ?
 

Are fruit wines like my orange-tangerine as sensitive to oxygen as grape
wines? Do I have to be as carefull?

Qxygen ?
 

Yes, you have all the same sorts of flavor chemicals that can go off,
just not the same polyphenol (tannin) content, so color will be
affected to a different extent. Treat most fruit wines as whites in
terms of oxidation.