Yes, JABOTICABAS is a Scrabble word!

Letter values in Scrabble US: J 8, A 1, B 3, O 1, T 1, I 1, C 3, A 1, B 3, A 1, S 1.

Is it a valid word?

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

small evergreen tropical tree native to Brazil and West Indies but introduced into southern United States; grown in Brazil for its edible tough-skinned purple grapelike fruit that grows all along the branches
tough-skinned purple grapelike tropical fruit grown in Brazil

Also: jaboticaba tree, myrciaria cauliflora.