Estimation of dietary ¹⁴C dose coefficient using ¹³C-labelled compound administration analysis.

ABSTRACT: Carbon-14 released from nuclear facilities has been assessed to contribute significantly to the radiation dose that people are exposed to through the food chain. However, the current dose coefficient for members of public, which is the ratio of the 50-year committed effective dose to ingested 1 Bq ¹⁴C, recommended by the International Commission on Radiological Protection (ICRP) is not based on experimental human metabolic data for ¹⁴C in nutrients and diet. Therefore, to validate the coefficient, we administered ¹³C-labelled nutrients consisting of four amino acids, three fatty acids, and one monosaccharide to volunteers as substitutes for ¹⁴C labelled nutrients and measured the ¹³C concentration in various excreta samples. Although m

SUBMITTER: Masuda T 

PROVIDER: S-EPMC7235250 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature