Assessment of ferrocyanide intake from food-grade salt in the Korean population

A simple high-performance liquid chromatography-ultraviolet (HPLC-UV) method for estimating the daily intake of ferrocyanide (FeCN) ion from food-grade salts was developed and validated. The levels of FeCN ion in food-grade salts available in Korean markets were analysed. FeCN ion was detected in 8....

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Bibliographic Details
Published in:Food science & technology 2018-07, Vol.93, p.620-627
Main Authors: Lim, Ho Soo, Hwang, Ju Young, Choi, EunA, Lee, Gunyoung, Yun, Sang Soon, Kim, MeeKyung
Format: Article
Language:English
Subjects:
Acceptable daily intake
Estimated daily intake
Ferrocyanides
Food-grade salt
HPLC
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Summary:A simple high-performance liquid chromatography-ultraviolet (HPLC-UV) method for estimating the daily intake of ferrocyanide (FeCN) ion from food-grade salts was developed and validated. The levels of FeCN ion in food-grade salts available in Korean markets were analysed. FeCN ion was detected in 8.9% of 801 samples, with concentrations ranging from ND (not detected) to 9.6 mg/kg. The FeCN-ion levels were below the legal limit (10 mg/kg) specified by the Korean Food Code. The FeCN-ion intake of the Korean population was evaluated by combining food-intake data from the 2012–2014 Korea National Health and Nutrition Examination Survey (KNHANES), and the concentration data. The mean estimated daily intakes (EDIs) of the general population and consumers were 0.010 and 0.012 μg/kg bodyweight (bw)/day, respectively, when the mean values from the tested samples were used. The 95th percentile intake levels of both groups were 0.036 and 0.039 μg/kg bw/day, respectively. The EDIs of FeCN ion for all groups were much lower than the acceptable daily intake (ADI) of 0.025 mg/kg bw/day. These results provide useful information about the use of FeCNs as anticaking agents for consumers and manufacturers. •A simple and rapid HPLC method was developed and validated to determine FeCN ion in food-grade salts.•FeCN-ion contents of 801 salt samples available in Korean markets were analysed by the HPLC method.•Mean FeCN-ion intake was calculated by combining the total intake of food-grade salts and the content data.•The EDIs of FeCN ion were much lower than the ADI of 0.025 mg/kg bw/day for all groups.
ISSN:0023-6438
1096-1127
DOI:10.1016/j.lwt.2018.04.008