Antimicrobial activities of Monascus koji extracts

식품유해균에 대한 홍국 추출물의 항균활성

  • Published : 2008.02.28

Abstract

Currently, natural food colorants and preservatives are being used for their general health benefits. Monascus koji, the product of certain fungi that grow on rice grains, has been added to many foods for coloring and preservation. In this study, the antimicrobial activities of Monascus koji ethanol extracts were investigated. Six Monascus strains (M. araneosus KFRI 00371, M. kaoliang ATCC 46597, M. pilosus IFO 4520, M. purpureus IFO 4482, M. ruber IFO 32318 and M. sp. ATCC 16437) were selected based on their relative intensity of red pigment. Two Monascus extracts, M. kaoliang ATCC 46597 and M. purpureus IFO 4482, displayed antimicrobial activities against Bacillus subtilis, B. cereus, Micrococcus luteus, Staphylococcus aureus and Salmonella typhimurium in concentration-dependent manners. The two extracts showed their strongest antimicrobial activity against S. typhimurium, a cause of food poisoning. Therefore, these results suggest that Monascus koji could be used as a natural food colorant and preservative.

항균활성을 나타내는 색소물질을 함유하고 있는 것으로 알려진 Monascus 균주 중 붉은 색소 생산력이 높은 6종의 Monascus 균주(M. araneosus KFRI 00371, M. kaoliang ATCC 46597, M. pilosus IFO 4520, M. purpureus IFO 4482, M. ruber IFO 32318 및 M. sp. ATCC 16437)로 홍국을 제조하고 색소 추출력이 높은 70% ethanol을 사용하여 추출물을 제조하였다. 6종의 Gram 양성균(Clostridium botulinum, Bacillus subtilis, B. cereus, Staphylococcus aureus, Micrococcus luteus, Listeria monocytogens), 3종의 Gram 음성균(Escherichia coli, Salmonella typhimurium, Proteus vulgaris), 2종의 효모(Saccaromyces cerevisiae, Candida albicans) 및 1종의 곰팡이(Aspergillus flavus)에 대한 항균활성과 미생물 증식억제 효과를 측정한 결과 M. kaoliang ATCC 46597과 M. purpureus IFO 4482가 B. subtilis, B. cereus, M.luteus, S. aureus 및 S. typhimurium에 대해 항균활성을 갖는 것으로 나타났다. 두 균주 중 M. purpureus IFO 4482가 M. kaoliang ATCC 46597에 비해 활성이 높았으며, 특히 대표적 식중독균의 하나인 S. typhimurium에 대해 가장 높은 활성을 나타내었다. M.kaoliang ATCC 46597과 M. purpureus IFO 4482의 시험 미생물 증식억제효과를 측정한 결과 농도에 따른 증식억제효과가 나타났으며 이는 배양 48시간까지 지속적으로 유지되었다. 따라서 천연의 붉은색을 띄는 홍국 추출물이 식품의 천연착색제 및 보존제 소재로의 적용 가능성이 나타났다.

Keywords

References

  1. Park SK, Lee TS, Park SK. Estimation of daily dietary intake of food red colors. J. Korean Soc. Food Sci. Nutr. 34: 75-80 (2005) https://doi.org/10.3746/jkfn.2005.34.1.075
  2. Beuchat LR, Golden DA. Antimicrobials occurring naturally in food. Food Technol. 43: 134-139 (1989)
  3. Kim HY, Lee YJ, Kin SH, Hong KH, Kwon YK, Lee JY, Ha SC, Cho HY, Chang IS, Lee CW, Kim KS. Studies on the development of natural preservatives from natural products. Korean J.Food Sci. Technol. 31: 1667-1678 (1999)
  4. Lee YC, Oh SW, Hong HD. Antimicrobial characteristics of edible medicinal herbs extracts. Korean J. Food Sci. Technol. 34: 700-709 (2002)
  5. Dees C, Askari M, Garrett S, Gehrs K, Henley D, Ardies CM. Estrogenic and DNA-damaging activity of Red No 3 in human breast cancer cells. Environ. Health Perspect. 105: 625-632 (1997) https://doi.org/10.2307/3433381
  6. Bau YS, Mo CF. The uses and culturing methods of Monascus prupureus Went. New Asia Coll. Acad. Ann. 17: 335-357 (1975)
  7. Wong HC, Bau YS. Pigmentation and antibacterial activity of fast neutron- and X-ray-induced strains of Monascus purpureus Went. Plant Physiol. 60: 578-581 (1977) https://doi.org/10.1104/pp.60.4.578
  8. Wong HC, Koehler PE. Production and isolation from Monascus purpureus and its relationship to pigment production. J. Food Sci. 46: 589-592 (1981) https://doi.org/10.1111/j.1365-2621.1981.tb04917.x
  9. Nozaki H, Date S, Kondo H, Kiyohara H, Takaoka D, Tada T, Nakayama M. Ankalactone, a new ${\alpha},{\beta}$-unsaturated ${\gamma}$-lactone from Monascus anka. Agr. Biol. Chem. 55: 899-900 (1991) https://doi.org/10.1271/bbb1961.55.899
  10. Martikova L, Juzlova P, Vesely D. Biological activity of polypeptide pigments produced by the fungus Monascus. J. Appl. Bacteriol. 79: 609-616 (1995) https://doi.org/10.1111/j.1365-2672.1995.tb00944.x
  11. Fink-Gremmels J, Dresel J, Leistner L. Use of Monascus extracts as an alternative to nitrite in meat products. Fleischwirtsch 71: 329-331 (1991)
  12. Piddock LJV. Techniques used for the determination of antimicrobial resistance and sensitivity in bacteria. J. Appl. Bacteriol. 68: 307-318 (1990) https://doi.org/10.1111/j.1365-2672.1990.tb02880.x
  13. Rhyu MR, Kim EY, Kim HY, Ahn BH, Yang CB. Characteristics of the red rice fermented with fungus Monascus. Food Sci. Biotechnol. 9: 21-26 (2000)
  14. Ryu CS, Kim YB, Hwang HJ. Antimicrobial effect of Monascus strain isolated from An-Khak. J. Food Hyg. Safety 10: 271-277 (1995)
  15. Mah JH, Hwang HJ. Screening of Monascus strain for antimicrobial activity and effect of change of nutrition and incubation conditions on antimicrobial activity. J. Korean Soc. Food Sci. Nutr. 25: 1080-1086 (1996)
  16. Ober P, Kunz B. Effect on bacteria of the metabolic products on Monascus purpureus. Fleischwirtsch 69: 123-125 (1989)
  17. Schumacher JD, Kunz B, Byoun KE. A study of natural pigment production with Monascus purpureus by solid state fermentation model systems. Adv. Food Sci. 18: 113-120 (1996)
  18. Kim SU, Kim JG. Pigment production in Monascus anka. J. Korean Agric. Chem. Soc. 3: 239-246 (1990)
  19. Kim JY, Lee JA, Park SY. Antibacterial activities of Oenothera laciniata extracts. J. Korean Soc. Food Sci. Nutr. 36: 255-261 (2007) https://doi.org/10.3746/jkfn.2007.36.3.255
  20. Kim JY, Lee JA, Kim KN, Yoon WJ, Lee WJ, Park SY. Antioxidative and antimicrobial activities of Sargassum muticum extracts. J. Korean Soc. Food Sci. Nutr. 36: 663-669 (2007) https://doi.org/10.3746/jkfn.2007.36.6.663
  21. Kim JY, Lee JA, Kim KN, Song GP, Park SY. Antioxidative and antimicrobial activities of Euphorbia helioscopia extracts. J. Korean Soc. Food Sci. Nutr. 36: 1106-1112 (2007) https://doi.org/10.3746/jkfn.2007.36.9.1106