Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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The Comparison of Growth and Quality Characteristics during the Storage of Pleurotus ostreatus Cultivated in the Remnants of Medicinal Herb Extracts

한약박에서 재배한 느타리버섯의 성장 및 저장 중 품질 특성의 비교

  • 전중호 (아산시농업기술센터 특화작물과) ;
  • 고병섭 (한의학연구원 검사사업부) ;
  • 김주호 (아산시농업기술센터 특화작물과) ;
  • 남상필 (아산시농업기술센터 특화작물과) ;
  • 엄영란 (한의학연구원 검사사업부) ;
  • 홍상미 (호서대학교 식품영양학과) ;
  • 황학수 (아산시농업기술센터 특화) ;
  • 박선민 (호서대학교 식품영양학과작물과)
  • Published : 2009.02.28
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Abstract

This study was conducted to determine whether Pleurotus ostreatus (oyster mushroom), cultivated in various ratios with herbal extract remnants instead of cotton supplemented with nutrients (the control), improved mycelial growth, mushroom yields and longevity during storage. In addition, we investigated the transfer of medicinal herb components into the mushrooms since they contained non-specific medicinal herbs and their composition could not be controlled. Mushrooms cultivated with 70% and 100% medicinal herb remnants had faster growth rates, higher yields and less failure in the development of the fruit body than the control group. There were no differences in HPLC chromatogram among the methanol extracts of Pleurotus ostreatus in all groups. In addition, glycyrrhizin, an indicative compound of licorice which was a major herb among the herbal remnants, was not detected in any of the extracts. Pleurotus ostreatus that was cultivated with 70% and 100% herbal extract remnants had improved storage longevity in comparison with the control. They exhibited the least weight loss during storage among the groups and they maintained firmness in the stipe and pileus. However, the sources of media did not alter the color difference of the stipe and pileus or the quality index of the outward appearance during storage. In conclusion, cultivating media that contained over 70% of medicinal herb extract remnants increased the growth rates and yields of Pleurotus ostreatus. In addition, these mushrooms had enhanced storage longevity due to their firmness. Therefore, medicinal herb extract remnants should be utilized in the cultivating media of various mushrooms.

일반적으로 폐기 처분하거나 비료로 재활용하는 한약을 추출하고 남는 한약박을 발효하여 영양분으로 첨가하는 팰릿 대신 폐면과 섞어 균상배지로 사용하여 느타리버섯을 재배할 때 수확량과 저장성에 대한 연구를 하였다. 또한, 한약박은 불특정 한약재들이 섞여 있으므로 이로 인해 문제가 나타날 수도 있으므로 한약박의 성분이 느타리버섯으로 전이되는지 여부를 조사하였다. 한약박 70%나 100%에서 느타리버섯을 재배할 때 질병이 생겨 고사되는 버섯의 수도 적었고, 성장속도도 빨라서 수확량도 많았다. 폐면과 펠릿을 이용한 대조군과 한약박을 배지에서 재배한 처리군들의 HPLC chromatogram에 차이를 전혀 나타내지 않았고 지표물질로 사용한 glycyrrhizin이 전혀 검출되지 않았다. 즉, 한약박의 성분 자체가 그대로 전이되지는 않았고, 한약박에 함유된 성분을 영양소로 이용하여 버섯의 품질을 향상시켰다. 한약박을 70%나 100%를 사용한 배지에서 재배된 느타리버섯의 저장성이 향상되어 저장기간 동안 중량 감소가 가장 적었고, 갓과 자루의 경도의 저하도 가장 적었다. 그러나 외관의 품질을 나타내 주는 색도의 변화는 배지 종류에 영향이 적었다. 결론적으로 한약박을 70% 이상을 배지로 사용하였을 때 한약성분의 직접적인 전이는 없어서 버섯의 상품성을 저하시키지 않았으며 성장률이 빠르며 수확률도 많았고, 조직이 치밀하여 저장성도 향상시켰다. 그러므로 한약박을 느타리버섯뿐만 아니라 여러 종류의 버섯 재배에 활용하는 것이 필요하겠다.

Keywords

References

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