The Korean Journal of Food And Nutrition (한국식품영양학회지)

The Korean Society of Food and Nutrition (한국식품영양학회)
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Contents of Nucleic Acids(Nucleosides and Mono-Nucleotides) in Extracts of Pleurotus ostreatus, Agaricus bisporus and Flammulina velutipes

느타리버섯, 양송이버섯, 팽이버섯 추출물의 핵산 관련 물질 함량 분석

  • Kim, Myoung-Sook (Dept. of Food & Nutrition, Duksung Women's University) ;
  • Kim, Gun-Hee (Dept. of Food & Nutrition, Duksung Women's University)
  • 김명숙 (덕성여자대학교 식품영양학과) ;
  • 김건희 (덕성여자대학교 식품영양학과)
  • Received : 2010.06.29
  • Accepted : 2010.08.18
  • Published : 2010.09.30
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Abstract

Mushrooms(Pleurotus ostreatus, Agaricus bisporus and Flammulina velutipes) are popular food sources in Korea, and have been reported as therapeutic foods, useful for preventing various diseases. In this study we researched HPLC conditions for the determination of nucleic acids in extracts of the three type of mushrooms. The method for nucleic acids analysis of mushrooms was developed using HPLC with UV detection. To determine the nucleic acids, mushroom extracts were extracted in hot water at $90^{\circ}C$ by reflux extraction for 1 hr. Then, the extracts were hydrolyzed by enzymes RP-1G and 50000G. The HPLC conditions were simple, rapid, and sensitive, and were applicable for the analysis of 4 nucleosides(cytidine, uridine, guanosine and inosine) and 3 mono-nucleotides(5'-CMP, 5'-UMP, and 5'-IMP) in the mushrooms. The nucleic acids in the mushrooms were cytidine, guanosine, inosine, uridine, 5'-CMP, 5'-IMP, and 5'-UMP. The analysis results for total nucleic acids in the mushroom extracts(Pleurotus ostreatus, Agaricus bisporus, and Flammulina velutipes) indicated levels of 25.28, 27.75, and 19.87 mg/g, respectively. In conclusion, this method can be used successfully for qualitative and quantitative analysis of nucleic acids in Pleurotus ostreatus, Agaricus bisporus, and Flammulina velutipes.

본 연구는 버섯에 정미 성분 및 기능성 성분으로 작용하는 핵산 관련 성분의 분석을 위하여 느타리, 양송이, 팽이버섯을 동결 건조한 뒤 열수 추출 및 효소적 가수분해과정을 거친뒤 HPLC로 정성 및 정량하였다. 연구 결과, 8종류의 핵산 관련 성분의 정성 및 정량 분석을 위한 효과적인 분석 조건을 확립하였으며, 버섯에 함유되어 있는 핵산 관련 성분은 cytidine, uridine, inosine, guanosine, 5'-UMP, 5'-GMP 및 5'-IMP 7종으로 분석되었다. 각각의 핵산 관련 성분 함량 분석 결과는 양송이 ($26.06{\pm}0.01\;mg/g$)>느타리($24.13{\pm}1.01\;mg/g$)>팽이버섯($18.84{\pm}0.03\;mg/g$)의 순으로 나타났으며, 그 중 cytidine 및 inosine 성분이 가장 많이 함유되어 있는 것으로 나타났다.

Keywords

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