In complete, 24 genuine white truffles harvested in Italy were analyzed, attaining a δ13C values between -42.6‰ and -33.9‰, with a most customary deviation decrease than 0.7‰. Two industrial intact truffles and 14 industrial samples of pasta, sauce, olive oil, cream, honey, and contemporary cheese flavored with truffle aroma had been analyzed, and the outcomes from δ13C measurement were evaluated compared with those of real "white truffle" range and business artificial bis(methylthio)methane cu...