Effects of calcium silicate on the chemical and bioactive composition of Pleurotus ostreatus var. Florida. Rossana V. C. Cardoso, Márcio Carocho, Ângela Fernandes, Diego Cunha Zied, João C.M. Barreira, Ana M. Gonzaléz-Paramás, Lillian Barros, Isabel C.F.R. Ferreira.