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A Study on Single Oral Dose Toxicity of Highly-Developed Anthocyanin-Pigmented Rice Varieties

생리활성이 우수한 고품질 유색미의 단회 경구투여 안전성 연구

  • Han, Hye-Kyoung (Dept. of Foods and Nutrition, DukSung Women's University) ;
  • Choi, Sung-Sook (Dept. of Foods and Nutrition, DukSung Women's University) ;
  • Shin, Jin-Chul (National Institute of Crop Science, Rural Development Administration) ;
  • Chung, Ha-Sook (Dept. of Foods and Nutrition, DukSung Women's University)
  • 한혜경 (덕성여자대학교 식품영양학과) ;
  • 최성숙 (덕성여자대학교 식품영양학과) ;
  • 신진철 (농촌진흥청 작물과학원) ;
  • 정하숙 (덕성여자대학교 식품영양학과)
  • Published : 2007.05.30

Abstract

The present study was carried out to investigate the potential toxicity of highly-developed rice varieties, Oryza sativa cvs. Jukjinjubyeo, Heuginjubyeo and Heughyangbyeo by a single oral dose in ICR mice. The test article was orally administered once by gavage at dose levels of 0, 2.5, 5.0, and 10.0 g/kg body weight (n=10 for male and female mice for each dose). We examined the number of deaths, general clinical signs, body weights and biochemical analysis for sexes and doses of mice between control and experimental groups. As a result all of the groups were alive during experimental periods and none of the significant clinical symptom and body weight changes were shown in all of the groups. Plasma glucose levels were valued for both control and experimental groups and there were no significant differences between the groups. The activities of aminotransferase were not increased in all experimental groups compared to control groups. The results suggest that the toxicity of the aleurone layer of Oryza sativa cvs. Jukjinjubyeo, Heugjinjubyeo and Heughyangbyeo are low and its $LD_{50}$ is over 10.0 g/kg body weight in both male and female mice.

건강효능이 우수한 고품질 유색미 과피의 안전성 규명을 목적으로 ICR계 마우스 암수 각각 10마리를 이용하여 적진주벼, 흑진주벼 및 흑향벼 과피를 80% EtOH로 추출한 농축물을 1회 경구투여 후 14일 동안 실시한 급성독성 평가 결과는 다음과 같다. 시험물질을 1회 경구투여한 경우, 총 14일의 실험기간 동안 모든 시료투여군의 암수 동물에서 정상적인 체중증가가 관찰되었으며, 체중증가는 유의적인 차이를 나타나지 않았으며, 시료투여군의 경우 용량의존적인 체중변화도 관찰되지 않았다. 시험물질 투여 14일 후 부검결과, 암수 모든 실험군의 간장, 신장(좌, 우), 비장, 심장, 폐 및 뇌에서 시험물질 투여에 따른 어떤 육안적 이상 소견도 발견되지 않았다. 치사시킨 동물의 혈액 생화학적 검사 결과, 모든 시료 투여군의 ALT와 AST 활성도가 정상 수치를 나타냈으며, 본 실험의 최고 용량인 10.0 g/kg투여에도 정상치를 나타내는 것으로 보아, 유색미 과피 추출물을 10.0 g/kg 이하 섭취할 경우에는 어떠한 간독성도 나타내지 않음을 확인할 수 있었다. 이상의 실험결과를 통해 고품질 유색미인 적진주벼, 흑진주벼 및 혹향벼 과피 추출물의 단회 경구투여에 의한 독성시험 시, 시험물질 투여에 의한 표적 장기가 관찰되지 않았으며, 어떠한 독성학적인 변화도 관찰되지 않는 것으로 보아, 무해 용량은 암수 모두 10.0 g/kg을 상회할 것으로 추정할 수 있었다.

Keywords

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  1. 랫드에서 방풍통성산의 안전성 연구 vol.20, pp.2, 2007, https://doi.org/10.14374/hfs.2012.20.2.055