Food Authentication: Truffle (Tuber spp.) Species Differentiation by FT-NIR and Chemometrics.

ABSTRACT: Truffles are certainly the most expensive mushrooms; the price depends primarily on the species and secondly on the origin. Because of the price differences for the truffle species, food fraud is likely to occur, and the visual differentiation is difficult within the group of white and within the group of black truffles. Thus, the aim of this study was to develop a reliable method for the authentication of five commercially relevant truffle species via Fourier transform near-infrared (FT-NIR) spectroscopy as an easy to handle approach combined with chemometrics. NIR-data from 75 freeze-dried fruiting bodies were recorded. Various spectra pre-processing techniques and classification methods were compared and validated using nested cross-validation. For the white truffle species, the most ex

SUBMITTER: Segelke T 

PROVIDER: S-EPMC7405009 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature