- P-ISSN 1225-0163
- E-ISSN 2288-8985
셀레늄은 다양한 화학종으로 존재하며 그 농도와 형태에 따라 활성도나 생물학적 이용도가달라지므로 식품에 대한 셀레늄 화학종의 정확한 분리 및 정량이 필요하다. 본 연구에서는 역상 (RP;reversed phase) 고성능 액체 크로마토그래피 (HPLC; high performance liquid chromatography)와 유도결합플라즈마 (ICP; inductively coupled plasma) 질량분석법 (MS; mass spectrometry)을 사용하여 해산물시료 중 셀레늄 화학종을 분리 검출 한 뒤에 후 컬럼 동위원소희석법 (post column isotope dilution)으로정확히 정량 하였다. 시료 중 80Se의 간섭요인인 79Br을 제거하기 위해 고체상 추출법을 사용하여 대부분의 79Br을 제거하였고 남아있는 79Br은 수학적 보정식을 이용하여 보정해주었다. CRM (certified reference material) DOLT-4를 사용하여 셀레늄의 총량을 분석한 결과는 인증치와 잘 일치하였지만 각 화학종에 대한 정보는 비교할 수 없었다. 한국인 식탁에 오르는 대표적인 해산물 시료인 갈치, 삼치, 오징어, 등을분석한 결과, 주된 셀레늄 화학종은 SeCys (selenocysteine)와 SeMet (selenomethionine)이었으며각각은 0-661.6 mg/kg and 137.3-462.7 mg/kg의 농도로 존재함 을 알 수 있었다.
Selenium exists in various forms of chemical species. The activity and bioavailability is strongly dependent on its chemical form and concentration. Consequently the information on each selenium species and its concentration must be exactly determined for the food we take in. In this study, selenium species in seafood were separated and quantified by RP (reversed phase) HPLC (high performance liquid chromatography) coupled with ICP-MS (inductively coupled plasma mass spectrometry) using post-column isotope dilution. 79Br, which interferes on 80Se, has mostly been removed by solid phase extraction and then mathematical correction has been applied for the more accurate correction. The experimental result for CRM (certified reference material)DOLT-4 agreed well with the certified value but each selenium species could not be compared. SeCys (selenocysteine) and SeMet (selenomethionine) were the major species detected in seafood such as belt fish,spanish mackerel, and squid that have been serving as Korean diet. The concentrations found in Korean sea food for SeCys and SeMet were in the range of 0-661.6 mg/kg and 137.3-462.7 mg/kg, respectively.
C. D. Thompson, Assesment of requirements for Se and adequacy of Se status: a review. Eur. J. Clin. Nutr., 58, 391-402 (2004).
S. B. Goldhaber, Regulatory Toxicol. and Pharm., 38, 232-242 (2003).
L. V. Rapp, J. Lu, A. Holmgren and K. K. Khanna, Antioxid. Redox Signal., 9, 775-806 (2007).
U. Tinggi, Toxicol. Lett., 137, 103-110 (2003).
R. C. McKenzie Jr., T. S. Rafferty, and G. J. Beckett, Immunol. Today, 19, 342-345 (1998).
P. Leonhard, R. Pepelink, A. Prange, N. Yamad and T. Yamada, J. Anal. At. Spectrom., 17, 189-197 (2002).
D. Wallschlager and J. London, J. Anal. At. Spectrom., 19, 1119-1125 (2004).
P. C. Uden, Anal. Bioanal. Chem., 373, 422-431 (2002).
M. Navaro-Alarcon and C. Cabrea-Vique, A review. Sci. Redox Signal., 9, 775-806 (2008).
Y. J. Choi, J. Y. Kim, H. S. Lee, C. I. Kim, I. K. Hwang, H. K. Park and C. H. Oh, J. of Food Comp. and Anal., 22, 117-122 (2009).
Y. Miyazaki, H. Koyama, Y. Sasada, H. Satoh, M. Nojiri, and S. Suzuki, J. Nutr. Sci. Vitaminol., 50, 309- 319 (2004).
H. S. Douglas, V. C. Morris, J. H. Soares Jr. and O. A. Leavander, J. Nutr., 111, 2180-2187 (1981).
B. O. Gabrielsen and J. Opstvedt, J. Nutr., 110, 1096- 1100 (1980).
T. E. Fox, E. G. H. M. Van den Heuvel, C. A. Atherton, J. R. Dainty, D. J. Lewis, N. J. Langford, H. M. Crews, J. B. Luten, P. Van Dael and S. J. Fairweather- Tait, Eur. H. Clin. Nutr., 58, 343-349 (2004).
M. Yoshida, M. Abe, K. Fukunaga and K. Kikuchi, Food Addit. Contam., 19, 990-995 (2002).
D. H. Vanesa, L. F. S. Maria and S. M. Alfredo, Anal. Chim. Acta, 538, 99-105 (2005).
T. Celine, R. Ann, D. T. Ludwig, S. Yves-Jacques and P. Luc, Food Chemistry, 130, 767-784 (2012).
P. Moreno, M. A. Quijano, A. M. Gutierrez, M. C. Perez-Conde and C. Camara, Anal. Chim. Acta, 524, 315-327 (2004).
L. H. Reyes, J. L. Mar, G. M. Rahman, B. Seybert, T. Fahrengolz and H. M. Kingston, Talanta, 78, 983-990 (2009).
M. A. Quijano, P. Moreno, A. M. Gutierrez, M. C. Perez- Code and C. Camara, J. of Mass Spectrom., 35, 878- 884 (2000).
H. Jang, H. Min, J. Lee and Y. Pak, Anal. Sci. Tech., 26, 182-189 (2013).
D. Schaumloffel, K. Bierla and R. Lobinski, J. Anal. At. Spectrom., 22, 318-321 (2007).
K. G. Heumann, L. Rottmann and J. Vogl, J. Anal. At. Spectrom., 9, 1351-1362 (1994).
H. Cho, Y. Pak, J. of Kor. Chem. Soc., 55(3), 472-477 (2011).
N. Luque, S. Rubio and D. Perez-Bendito, Anal. Chim. Acta, 584, 181-188 (2007).
M. Dernovicsa and R. Lobinski, J. Anal. At. Spectrom., 23, 744-751 (2008).
Korea Food & Drug Administration 위해 예방정책과, 유해물질 총서, 셀레늄, 2010. 12, Republic of Korea.