영양강화제 중 산화칼슘의 성분규격 시험법 개선 및 검증

초록

This study aimed to improve and validate the analytical method for the specification analysis of calcium oxide used as a food additive. The focus was on proposing improvements to the analytical method and verifying the same to enhance accuracy and accessibility. The Ministry of Food and Drug Safety (MFDS) Food Additives Code specifies the use of platinum crucibles for the purity analysis (alkali or magnesium), but the high cost of platinum crucibles limits the accessibility of the analysis. The results showed that, except for the nickel crucible (17.99±1.15%), both the platinum crucible (1.36±0.16%) and the quartz crucible (1.77±0.29%) met the MFDS limit of 3.6% or less. Intra-day and inter-day analyses confirmed the reproducibility of both platinum and quartz crucibles. The quantitative analysis method compared the conditions of ‘weighing after ignition’ and ‘weighing before ignition’ due to the lack of clarity on the ignition point. The calcium oxide content was 97.75±0.58% and 82.74±0.18%, respectively, confirming that the ‘weighing after ignition’ condition was appropriate for meeting the standards. Intra-day and inter-day analysis under this condition showed calcium oxide content and relative standard deviations of 97.75±0.58%, 0.06%, and 96.88±0.83%, 0.85%, respectively, demonstrating the reproducibility of the proposed improvement. These findings suggest that replacing platinum crucibles with quartz crucibles is feasible and can enhance the clarity of the assay, reducing potential confusion during the analysis process.

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