Yes, RIPENED is a Scrabble word!

Letter values in Scrabble US: R 1, I 1, P 3, E 1, N 1, E 1, D 2.

Is it a valid word?

RIPENED is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

of wines, fruit, cheeses; having reached a desired or final condition; (`aged' pronounced as one syllable)