논문 상세보기
pp.524-529
곡류분말의 위생화 및 물리적 특성 개선을 위해 감마선 조사기술의 이용 가능성이 높아짐에 따라 이들의 안전성을 확보할 목적으로 30 kGy의 고선량 감마선조사 곡류분말의 유전독성학적 안전성 평가를 실시하였다. 감마선 조사 및 비조사 곡류분말의 S. typhimurium TA 98, TA100, TA1535 및 TA1537에 대한복귀변이 집락수를 조사한 결과, 대사활성계 도입 및 부재시 모두 시험적용 농도인 0.625-10 mg/plate의 범위에서
Gamma irradiation at 30 kGy was applied to cereal powders to evaluate their possible genotoxicity. The genotoxicity of 30 kGy-irradiated cereal powders was evaluated by Salmonella typhimurium reversion assay, chromosomal aberration test and in vivo micronucleus assay. The result were negative in the bacterial reversion assay with S. typhimurium TA98, IA100, TA1535 and TA1537. No mutagenicity was detected in the assay with and without metabolic activation. In chromosomal aberration tests with CHL cells and in vivo mouse micronucleus assay, no significant difference in the incidences of chromosomal aberration and micronuclei was observed between non-irradiated and 30 kGy-irradiated cereal powders. These result indicate that cereal powders irradiated at 30 kGy did not show any genotoxic effect under these experimental conditions.
