加工モデル実験によるコメ内在性DNAが検出されなかったビーフンに関する一考察

摘要

In the inspection of genetically modified rice, rice taxon-specific DNA could not be detected in processed rice food (bifun: rice vermicelli). The effects of using PCR the ratio of rice powder content and temperature of processing on the detection of taxon-specific DNA were examined by means of processing model experiments using cornstarch with 0, 2, 5, 10% rice powder by weight. Cornstarch and rice powder were blended with water and subjected to heating, steam-treatment, and autoclaving. The rice taxon-specific DNA was detectable in 2% rice powder following heat and steam treatments. After autoclaving, rice taxon-specific DNA was detected only in the 10% rice powder product. In the processing model experiment using rice powder, it was found that autoclaving caused severe DNA degradation.%日本では，平成13年に遺伝子組換え食品の安全性審査rnが義務化され，安全性審査を受けていない（安全性末審rn査）遺伝子組換え食品の製造，輸入，販売等が禁止されてrnいる．一方，米国で商業用米から，日本で安全性未審査のrn遺伝子組換えコメ（LLRICE601）が検出された事例や米rn国で未承認の遺伝子組換えトウモロコシ（DAS59132）がrn混入したトウモロコシ種子の販売事例が公表された．