earticle

영어

Lentinula edodes (L. edodes) is one of the popular edible or medicinal mushrooms consumed in many Asian countries. Nowadays, although the imported amounts of L. edodes mushroom produced in China are consistently increased in Korea, a reliable discrimination of it’s geographic origin remains very limited so far. Therefore, this study aimed to examine whether the L. edodes cultivated from some cultivation regions in Korea could be discriminated against to the mushroom from somewhere in China by the C-N-O-S stable isotope composition analyses. δ13C, δ15N, and δ34S in L. edodes, except for δ18O, were significantly influenced by its cultivation origins (Korea versus China, p < 0.05). In general, δ13C, δ15N and δ34S values were higher in L. edodes produced from China compared to those from Korea. In particular, the L. edodes by a log cultivation was given in a lower δ15N values than that by a bag cultivation (p < 0.05). Regardless of different cultivation methods (a log vs a bag) depending on the mushroom cultivation regions, the 2-D plots of δ15N and δ18O showed a relatively clear discrimination of L. edodes mushrooms between Korea and China. In conclusion, the analysis of stable isotope ratios can be a suitable tool for a regional discrimination of L. edode sold in Korea, with potential application to other countries after certain validation steps.