Chung Ill-Min, Park Sung-Kyu, Lee Kyoung-Jin, An Min-Jeong, Lee Ji-Hee, Oh Yong-Taek, Kim Seung-Hyun
Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul 05029, Republic of Korea.
Food Chem. 2017 Nov 1;234:425-430. doi: 10.1016/j.foodchem.2017.05.014. Epub 2017 May 4.
The increasing demand for organic foods creates, in turn, a pressing need for the development of more accurate tools for the authentication of organic food in order to ensure both fair trade and food safety. This study examines the feasibility of δC and δN analyses as potential tools for authentication of environment-friendly rice sold in Korea. δC and δN examination in different rice grains showed that environment-friendly rice can be successfully distinguished from conventional rice. No multi-residue pesticides were detected in the examined rice samples, including conventional rice. This study demonstrates the complementary feasibility of δC and δN analyses for the authentication of environment-friendly rice sold in Korea in cases where pesticide residue analysis alone is insufficient for discrimination of organic and conventional rice. In future, complementary analyses including compound-specific isotope ratio analysis might be employed for improving the reliability of organic authentication.
对有机食品日益增长的需求，反过来又迫切需要开发更准确的有机食品认证工具，以确保公平贸易和食品安全。本研究考察了δC和δN分析作为韩国销售的环保大米认证潜在工具的可行性。对不同大米颗粒的δC和δN检测表明，环保大米能够成功地与传统大米区分开来。在所检测的大米样品中，包括传统大米，均未检测到多残留农药。本研究证明，在仅靠农药残留分析不足以区分有机大米和传统大米的情况下，δC和δN分析对韩国销售的环保大米认证具有互补可行性。未来，可能会采用包括化合物特异性同位素比率分析在内的补充分析方法，以提高有机认证的可靠性。
