In complete, 24 real white truffles harvested in Italy were analyzed, attaining a δ13C values between -42.6‰ and -33.9‰, with a maximum standard deviation lower than 0.7‰. Two commercial 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 had been evaluated compared with these of genuine "white truffle" range and industrial artificial bis(methylthio)metha...