Collection of data for the manuscript entitled Carbonized apples and quinces stillage for electromagnetic shielding Data for BA and BQ is a collection of data - file is manuscript, file type .pdf FTPO_TGA_BA.txt – thermogravimetric data of carbon-based nanomaterial produced from biomass apple, file type .txt VINCA_Raman_BA.txt – Raman spectra data of BA, file type .txt FTPO_TGA_BQ.txt - thermogravimetric data of carbon-based nanomaterial produced from biomass quince, file type .txt UniOldenburg_VNA_BA.txt – Vector network analysis of shielding efficiency BA, file type .txt UniOldenburg_VNA_BQ.txt – Vector network analysis of shielding efficiency BQ, file type .txt VINCA_Raman_BQ.txt – Raman spectra data of BQ, file type .txt