게르마늄강화효모 내의 $GeO_2$ 정성분석

Qualitative Analysis of $GeO_2$ in Germanium-Fortified Yeast.

  • 김소연 (전남대학교 화학과 나노기술연구센터) ;
  • 김명희 (전남대학교 화학과 나노기술연구센터) ;
  • 우희권 (전남대학교 화학과 나노기술연구센터) ;
  • 김보혜 (동신대학교 한약재산업학과) ;
  • 손창욱 (게란티제약㈜ 중앙연구소) ;
  • 정진욱 (게란티제약㈜ 중앙연구소) ;
  • 백대헌 (게란티제약㈜ 중앙연구소)
  • Kim, So-Yeun (Department of Chemistry and Nanotechnology Research Center, Chonnam National University) ;
  • Kim, Myoung-Hee (Department of Chemistry and Nanotechnology Research Center, Chonnam National University) ;
  • Woo, Hee-Gweon (Department of Chemistry and Nanotechnology Research Center, Chonnam National University) ;
  • Kim, Bo-Hye (Department of Korea Medicinal Supply, Dongshin University) ;
  • Sohn, Tsang-Uk (Geranti Pharm. Ltd.) ;
  • Jung, Jin-Wook (Geranti Pharm. Ltd.) ;
  • Baek, Dae-Heoun (Geranti Pharm. Ltd.)
  • 발행 : 2007.06.28

초록

본 연구는 효모 내에서 생합성된 유기게르마늄을 함유한 게르마늄강화효모 Geranti Bio Ge-Yeast 내에 무기게르마늄이 존재하지 않거나 불검출임을 확인하기 위해 수행하였으며, 이를 뒷받침하기 위한 과학적 논거를 제시하기 위해 $GeO_2$ 정성분석 프로토콜을 수립하여 실험을 실시하였다. 1당량의 $NaBH_4$$GeO_2$에 가하면 갈홍색의 침전이 관찰되고 2당량의 $NaBH_4$를 가하면 진한 갈색의 침전이 생성되는데 이 독특한 색을 띠는 침전 생성으로부터 $GeO_2$의 존재를 정성적으로 분석이 가능하였다. $SiO_2$와의 반응 시 색 변화가 일어나지 않는 것으로 보아 색은 Ge-O와 B간의 결합에 의해 생기는 전하이동 전이 때문일 것으로 생각되며, 게르마늄강화효모와의 반응에서는 발색이나 침전이 형성되지 않아 $GeO_2$가 존재하지 않음을 확인하였다. 투석막 외부의 여과액을 취하여 상기 $GeO_2$ 정성 프로토콜에 따라 $NaBH_4$와 반응을 시도하여도 특이한 색 변화와 갈홍색 침전이 관찰되지 않았으므로 투석막을 통과하여 외부에 존재하는 게르마늄도 역시 $GeO_2$의 형태가 아닌 유기게르마늄일 것으로 사료된다. Geranti Bio Ge-Yeast는 생합성 기법을 사용하여 생산된 게르마늄을 강화한 유기게르마늄으로서 더 다양한 분석과 연구를 통해 각각의 single compound들의 구조를 규명하고 분리 정제하는 연구가 필요하리라 사료된다.

This study was designed to investigate that inorganic germanium $(GeO_2)$ did not exist in germanium-fortified yeast or obtained to non-detectable value by current analytical methods and equipments. For this purpose, we achieved $GeO_2$ qualitative analysis protocol which could be the scientific basis of the study. Since reddish brown precipitate was formed from the reaction of $GeO_2$ with 1 equiv $NaBH_4$, and dark brown precipitate was also formed from the reaction of $GeO_2$ with 2 equiv $NaBH_4$, $GeO_2$ was qualitatively analyzed by observing these particular colored-precipitates. Because no color change was showed from the reaction between $NaBH_4$ and $SiO_2$, the color change could be caused by charge transfer transition on Ge-O and B binding properties. The reaction between $NaBH_4$ and germanium-fortified yeast did not show any color change and precipitate formation which meant no $GeO_2$ existed in germanium-fortified yeast. The reaction between $NaBH_4$ and supernatant specimen collected from the outside of dialysis membrane (MWCO 1,200 dalton) did not show any color change and precipitate formation. Therefore, we considered that the both germaniums in and outside of the dialysis membrane were organic germaniums. Germanium-fortified yeast which was biosynthesized organic germanium can be applied not only as a new functional material for improving health, prevention and treatment of chronic degenerative diseases including cancers, and the regulation of immune system, but also as a new materials.

키워드

참고문헌

  1. Assai, K. 1980. in Miracle Cure-Organic germanium. Japan publications Inc., New York, pp. 51-55
  2. Arimori, S., K. Watanabe, M. Yoshita, and T. Nagao. 1981. Effect of Ge-132 as immunomodulator. In: Immunomodulation by microbial products and related synthetic compounds. Int. Symp. Osaka July 27-29
  3. Badawi, A. M. and A. A. Hafiz. 2007. Synthesis and immunomodulatory activity of some novel amino acid germanates. J. Iran. Chem. Soc., 4: 107-113 https://doi.org/10.1007/BF03245808
  4. Klapcinska, B. and J. Chmielowski. 1986. Binding of germanium to Pseudomonas putida cells. Appl. Environ. Microbiol. 51: 1144-1147
  5. Lee, H. K., J. S. Kim, and T. B. Kang. 2004. Extraction of organic germanium compound from garlic. Inst. National Sci. Sangmyung Univ. 12: 1-18
  6. Lee, S. H., S. D. Ahn, S. N. Rho, and T. U. Sohn. 2005. A study on preparation and binding properties of germanium-fortified yeast. J. Korean Soc. Appl. Biol. Chem. 48: 382-387
  7. Lynn, M. R. and M. G. Geoffery. 1997. Mutants of Saccharomyces cerevisiae defective in vacuolar function a role for the vacuole in toxic metal iron detoxification. Microbiol. Lett. 152: 293-298 https://doi.org/10.1111/j.1574-6968.1997.tb10442.x
  8. Nobuhiro, W., I. Osamu, K. Takuro, and Y. Koichi. 1980. New approaches to using spent brewer's yeast. ASBC Journal. 38: 5-8
  9. Sandra, G. 1988. Therapeutic effects of organic germanium. Medical Hypothesis 26: 207-215 https://doi.org/10.1016/0306-9877(88)90101-6
  10. Sanai, T., N. Oochi, and S. Okuda. 1990. Subacuten of germanium dioxide in the experimental animal. Toxicol. Appl. Pharmacol. 103: 345-353 https://doi.org/10.1016/0041-008X(90)90234-L
  11. Sanai, T., S. Okuda, and K. Onoyama. 1991. Chronic tubulointestitial changes induced by germanium dioxide in comparison with carboxyethylgermanium sesquioxide. Kidney. Int. 40: 882-890 https://doi.org/10.1038/ki.1991.289
  12. Schroeder, H. A. and J. J. Balassa. 1967. Arsenic, germanium, tin, and banadium in mice: Effects on growth, survival and tissue levels. J. Nutri. 92: 245-252 https://doi.org/10.1093/jn/92.2.245
  13. Wei, X. S. 1992. Effect of yeast on bioenrichment of germanium. Food Science. 149: 49-54