A developmental process, independent of morphogenetic (shape) change, that is required for a type B pancreatic cell to attain its fully functional state. A type B pancreatic cell is a cell located towards center of the islets of Langerhans that secretes insulin.
Comment:
These processes continue to 60 DPA in Gossypium spp.
Synonyms:
exact_synonym:
pancreatic B cell maturation; pancreatic beta cell maturation