Analysis of Antimicrobial Substance isolated from Scutellariae Radix Extract using LC-MS

LC-MS를 이용한 황금추출물의 항균물질 검색

  • Kim Young-Rok (Gyeongsangnamdo Provincial Government Institute of Health & Environment) ;
  • Choi Sung-Gil (Department of Food Science and Technology, Institute of Agriculture and Life Sciences, Gyeongsang National University) ;
  • Cho Sung-Hwan (Department of Food Science and Technology, Institute of Agriculture and Life Sciences, Gyeongsang National University)
  • 김영록 (경상남도 보건환경연구원) ;
  • 최성길 (경상대학교 식품공학과 및 농업생명과학연구원) ;
  • 조성환 (경상대학교 식품공학과 및 농업생명과학연구원)
  • Published : 2005.08.01

Abstract

It was carried out for development of natural antimicrobial on Scutellariae Radix by measuring the general nutritional composition and mineral contents. This study analyzed it with LC-MS to identify antimicrobial activity substance in the Scutellariae Radix extract, its content was analyzed using HPLC. The searching substance was examined antimicrobial activity by disk method. The approximate composition of Scutellariae Radix was $8.93\%$ of moisture, $4.13\%$ of crude ash, $15.30\%$ of crude protein, $3.71\%$ of crude fat, $67.93\%$ of carbohydrate, respectively. Scutellariae Radix was contained high contents of minerals such as K(12,050 mg/kg),. Mg(4,295 mg/kg), remarkably. It was identified that molecular weight 445' peak was baicalin, molecular weight 283' peak was wogonin and molecular weight 269' peak was baicalein on Scutellariae Radix extract Baicalin showed remarkable antimicrobial activity against V. parahaemolyticus and L monocytogenes when examined by disk method, which was estimated antimicrobial activity substance in the Scutellariae Radix extract. The content of baicalin was $0.75\%$(with D.W.) and $0.82\%$(with methanol) in the Scutellariae Radix extract using HPLC.

황금의 천연항균제 개발을 위하여 황금의 일반성분 및 미량물질들을 분석하였으며 항균활성물질의 검색을 위하여 LC-MS를 이용하였고 검색되어진 성분들에 대해서는 항균력 비교시험을 하였으며 항균활성물질들에 대해서는 HPLC를 이용하여 그 양을 정량하였다. 황금의 일반성분으로는 수분 $8.93\%$, 탄수화물 $67.93\%$, 조회분 $4.13\%$, 조단백질 $15.30\%$ 및 조지방 $3.71\%$ 이었고 미량성분에 있어서는 칼륨 12,050mg/kg과 마그네슘4,296 mg/kg의 함량이 현저하게 높았다. LC-MS 분석결과 황금추출물에 있어서 분자량 445의 peak는 baicalin, 분자량 283의 peak는 wogonin, 분자량 269의 peak는 baicalein으로 확인되었다. disk method를 이용하여 항균력을 시험한 결과 baicalin이 주된 항균물질임을 추정할 수 있었으며, 메탄올 및 물추출물의 baicalin 함량을 분석한 결과 물추출물은 $0.75\%$이었고 메탄올추출물은 $0.82\%$로서 메탄올추출물에 있어서 baicalin 함량이 약간 높은 결과를 얻었다.

Keywords

References

  1. Oh, D.H., Ham, S.S., Park, B K., Ahn, C. and Yu, J.Y. (1998) Antimicrobial activities of natural medicinal herbs on the food spoilage of foodborne disease microorganisms, Korean J. Food Sci. Technol., 30, 957-963
  2. Shin, D.W., Kim, M.S. and Han, J.S. (1997) Antimicrobial effect of ethanol extracts from some medicinal herbs and their fractionates against food-borne bacteria. Korean J. Food Sci. Technol., 29, 808-816
  3. Odachi, J., Ishii, E., Fukumoto, A. and Tanaka, M. (1993) Antimicrobial activity of medicinal plants against methicillin-resistant Staphylococcus aureus. Seikatsu Eisei, 37, 15-19
  4. Cho, S.H. and Kim, Y.R. (2001) Antimicrobial Characteristics of Scutellariae Radix Extract, J. Korean Soc. Food Sci. Nutr., 30, 964-968
  5. 富森穀, 神久德, 宮一論起範, 豊福信吾, 難波恒雄 (1985) Scutellaria屬 植物の成分硏 究(第六報)黃 芩のフラボノイド成分についてその5クロマトクラフイによる定量, 漢藥雜誌, 105, 148-155
  6. Tani, T., Katsuki, T., Kubo, M. and Arichi, S. (1985) Histochemistry VII. Flavonoids in Scutellariae Radix, Chem. Pharm. Bull., 33, 4894-4900 https://doi.org/10.1248/cpb.33.4894
  7. 장상문, 최정, 김종완, 박병윤, 박선동 (1996) 한약자원 식물학 p.273-276, 학문출판(주), 서울
  8. 안덕균 (2002) 한국본초도감 p.121, (주) 교학사, 서울
  9. A.O.A.C. (1990) Official Methods of Analysis. 15th ed., Association of Official Analytical Chemists, Washington D.C., p.40-84
  10. Davidson, P. M. and Parish, M. E. (1989) Methods for testing the efficacy of food antimicrobials, Food Technology, 148-155
  11. 이제현 (1995) 황금(Scutellariae Radix)의 성분분석 방법 및 정량에 관한 연구, 경희대학교 석사학위논문