보존료인 소르빈산 및 소르빈산칼륨, 안식향산 및 그 염류, 파라옥시안식향산에스테르류를 중심으로 식품첨가물의 일일추정섭취량을 평가하는 새로운 방법으로서 설문조사법을 제시하여 일일추정섭취량을 구하였을 때 조사한 보존료 모두 일일섭취허용량(ADI)의 1%미만으로 매우 안전한 수준이였다. 기존에 수행된 최대허용량을 이용한 단순추정방법 및 실제 분석치를 이용한 정밀추정방법과 비교·평가하였을 때, 설문조사법에 의한 총 일일추정섭취량은 소르빈산염류의 경우 0.39 ㎎/㎏ bw/day로 실제 분석치를 이용한 정밀조사방법에 의한 값인 0.22㎎/㎏ bw/day보다 높았으나 최대허용량을 이용한 방법에 의한 값인 1.39 ㎎/㎏ bw/day보다는 훨씬 낮았다. 또한 안식향산염류와 파라옥시안식향산에스테르의 경우도 설문조사가 0.29㎎/㎏ bw/day, 0.03㎎/㎏ bw/day으로 정밀추정방법보다는 높게 나타났으나 단순추정방법인 최대허용량을 이용한 방법보다는 훨씬 낮은 값으로 정밀추정방법에 의한 값에 가까운 결과를 보였다. 따라서 설문조사법을 간편하고 경제적이면서 섭취량을 정밀하게 추정할 수 있는 식품첨가물 섭취량 평가의 방법으로 활용할 수 있을 것으로 사료된다.

A study has been performed to estimate the average and high (90th percentile of consumers-only) daily intakes of sorbates by age-sex groups (＞ 3 years old) in Korea. The estimation of daily intakes was based on individual-based dietary intake data in `National Health and Nutrition Survey in 1998' and the contents of sorbates from samples. The estimated daily intakes (EDI) of sorbates for average consumers ranged from 0.09 mg/kg bw/day to 0.51 mg/kg bw/day corresponding to 0.4-2.1% of acceptable daily intake (ADI). For high consumers, the range of EDI of sorbates was 3.42-14.65 mg/kg bw/day corresponding to 13.7-58.6% of ADI. Foods that contributed most to the daily intakes of sorbates for all age-sex groups were processed fish products, processed meat products, and salted foods. There was an inverse relationship between age and the consumption of sorbates for average and high consumers, whereas no marked pattern was emerged by sex categories. The intake levels of sorbates even among high consumers were below the ADI in Korea.

σ-VFe 금속간화합물에 대한 기계적 합금화(MA) 효과를 중성자 및 X선 회절법으로 조사하였다. MA 분말의 구조분석은 X선 회절(Cu-Kα) 린 중성자회절(HRPD, λ=1.835Å)을 이용하여 행하였다. σ-VFe화합물의 MA시 큰 구조변화가 관찰되었으며, MA 60시간의 경우 Fe-Fe 훤자분포는 unit cell에 30개의 원자를 포함하고 있는 σ상의 tetragonal구조에서 120˚C이상에서 안정하게 존재하는 α-(V,Fe) 고용체의 bcc 구조로 상변화함을 알 수 있었다. 또한 α-VFe 화합물에 대한 중성자 및 X선 회절패턴의 비교분석을 행하였으며 그 결과 σ상이 가지는 화학적 규칙성에 기인하는 (101)과 (111) 회절 피크가 중성자 회절에서 뚜렷하게 관찰됨을 알 수 있었다.

A study has been carried out to estimate the average daily intakes of sorbates, benzoates, and esters of p-hydroxybenzoic acid commonly used in Korea. The estimation of daily intakes was based on individual dietary intakes in $quot;National Health and Nutrition Survey in 1998$quot; and the the contents of preservatives from 264 samples. Estimated daily intakes(EDI) of sorbates, benzoates, esters of p-hydroxybenzoic acid were 0.22, 0.015, and 0.004 mg/kg bw/day, respectively. When assuming the standard body weight of 55 kg for Korean, ratios to acceptable daily intake(ADI) of sorbates, benzoates, and esters of p-hydroxybenzoic acid were 0.88, 0.30, and 0.04%, respectively.

Daily intakes of 14 preservatives were evaluated by using their maximum permitted levels(MPL) and national food disappearance data in 1998. The estimated daily intake (EDI) of each preservatives were compared with corresponding acceptable daily intakes (ADIs). EDIs of dehydroacetic acid, sodium dehydroacetate, p-hydrobenzoic acid ester, propionic acid, sodium propionate and calcium propionate were leas than 2% of ADI and judged to be safe. However, EDI of sorbic acid and potassium sorbate were 76.61 mg/person/day and it reached 5% of its ADI. EDI of benzoic acid and sodium benzoate were 85.65 mg/person/day and it reached 31% of its ADI. The highest intake of benzoic acid came from carbonated drink.

The Budget method used currently in Codex for estimation of use levels of food additives was investigated and the specific approach that can be applicable for Koreans has been proposed. Theoretical maximum daily intakes(TMDIs) of benzoate, p-hydroxybenzoic acid ester, butylated hydroxyanisole(BHA), butylated hydroxytoluene (BHT), t-butylhydroquinone(TBHQ), nitrite, nitrate, sorbate, and sulfite were estimated and compared with corresponding acceptable daily intakes(ADIs). Additives requiring further precise evaluation were screened. TMDIs of benzoate, BHA, BHT, TBHQ, nitrite, and sulfite exceeded ADIs. On the other hand, it appeared that TMDIs of p-hydroxybenzoic acid esters, nitrate, and sorbate were below ADIs. It is expected that the Budget method may be used as one approach for the estimation of use level and risk assessment.