Authenticating the geographical origin of the Chinese yam (Tiegun) with stable isotopes and multiple elements.

ABSTRACT: The Chinese yam, an important orphan crop with both high nutrient and health promoting value, is mainly produced in the Yellow-Huai-Hai plain near the river basins in China. The protected designation of origin (PDO)-labeled Chinese yam differs greatly from others in market acceptance and price, which has led to fakes and the need for reliable authentication methods. Hence, stable isotope ratios of δ ¹³C, δ ¹⁵N, δ ²D, and δ ¹⁸O and 44 multielemental contents were used to explore the authentication of geographical origins and the effect of environmental factors. Twenty-two elements and δ ¹⁵N were selected as the key variables to authenticate Chinese yams from three river basins as well as to authenticat

SUBMITTER: Xiong F 

PROVIDER: S-EPMC10149263 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature