Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Evaluation of mineral, heavy metal and phthalate contents in mudflat solar salt and foreign salt

국내산 갯벌천일염과 외국산 소금의 미네랄, 중금속 및 phthalate 함량 평가

  • Kim, Hag-Lyeol (Department of Food Engineering, Solar Salt and Halophyte Research & Development Center, Mokpo National University) ;
  • Lee, In-Seon (Department of Food Engineering, Solar Salt and Halophyte Research & Development Center, Mokpo National University) ;
  • Kim, In-Cheol (Department of Food Engineering, Solar Salt and Halophyte Research & Development Center, Mokpo National University)
  • 김학렬 (국립목포대학교 식품공학과/천일염 및 염생식물 산업화 사업단) ;
  • 이인선 (국립목포대학교 식품공학과/천일염 및 염생식물 산업화 사업단) ;
  • 김인철 (국립목포대학교 식품공학과/천일염 및 염생식물 산업화 사업단)
  • Received : 2014.03.31
  • Accepted : 2014.06.27
  • Published : 2014.08.30
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Abstract

The purpose of this study was to evaluated a phthalate, heavy metal contents and physicochemical quality properties in korean mudflat solar salt and foreign salts. DEHP in mudflat solar salt (MSS) was detected a low level (9.00~669.89 ppb), but it was shown a high level excess to 1.5 ppm criteria in the foreign solar salt (FSS) 5 type (3,440.64, 3,266.56, 2,189.65, 4,010.69, 4,554.20 ppb) and foreign large solar salt (FLSS) 1 type (1,983.27 ppb). Also, DEHP in FSS 2 type (930.15, 1,310.07 ppb) and FLSS 1 type (924.92 ppb) was detected a high level not excess to criteria. No detected DMP, DEP, DIBP, DBP, DAP, BBP, DCHP and DEHA contents in MSS and foreign salt (FS). Na ion was shown a significantly higher level (p<0.05) in FS (407,345.87~426,612.14 ppm) than in MSS (363,633.98 ppm), but it was shown a high level in Mg (p<0.01), K (p<0.05), Ca ion (p<0.05) of FSS compared to foreign refined salt (FRS). Cl ion (532,727.07 ppm) of MSS was the most low level (p<0.001) compared to FS, but it was shown a high level (p<0.001) in Br ion (625.07 ppm). $SO_4$ ion was not shown a significant difference in DS and FS. It was display a high level in Mn of MSS, and Al, Fe of FLSS. Heavy metal contents (As, Cd, Pb and Hg) in MSS and FS was not significant difference, it was safety level as edible salt.

본 연구는 국내 천일염 생산 대표지역의 갯벌천일염 15종과 외국산 소금 38종에 대한 이화학적 품질 특성, 중금속 함량 및 phthalate 화합물의 오염 수준을 평가하였다. MSS에서 DEHP는 9.00~669.89 ppb 수준으로 검출되었으나 인체 안전성을 우려할만한 수준은 아니었다. 그러나 FS는 FSS 5종(3,440.64, 3,266.56, 2,189.65, 4,010.69, 4,554.20 ppb)과 FLSS 1종(1,983.27 ppb)에서 DEHP 용출규격 1.5 ppm이하를 초과하는 높은 수준이 검출되었으며, FSS 2종(930.15, 1,310.07 ppb), FLSS 1종(924.92 ppb)에서도 비교적 높은 수준이 검출되었다. 그 외의 phthalate 화합물에서는 MSS와 FS 모두에서 인체 안전성을 우려할만한 수준은 검출되지 않았다. Na 이온은 MSS(363,633.98 ppm)에 비해 FS(407,345.87~426,612.14 ppm)에서 높은 수준(p<0.05)이었으며, Mg(p<0.01), K(p<0.05), Ca 이온(p<0.05)은 FRS에서 가장 낮은 함량을, FSS에서 가장 높은 함량을 나타내었다. Cl 이온의 경우 MSS(532,727.07 ppm)에서 가장 낮은 함량(p<0.001)을 나타낸 반면, Br 이온(625.07 ppm)은 가장 높은 함량(p<0.001)을 나타내었으며 $SO_4$ 이온에서 유의한 차이는 없었다. MSS에서 Mn 함량이 높았으며, Al과 Fe의 함량은 FLSS에서 높은 수준이었다. MSS와 FS의 중금속에서 유의한 차이는 없었으며, 식용소금에 대한 중금속기준을 초과하지는 않아 소금을 통한 중금속은 안전한 수준으로 판단된다.

Keywords

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