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Quality Characteristics of Pleurotus eryngii Cultivated with Different Wavelength of LED Lights

LED광의 파장을 달리하여 재배한 새송이버섯의 품질특성

  • Kim, Do-Hee (Department of Food Science and Technology, Kyungpook National University) ;
  • Choi, Hye-Jin (Department of Food Science and Technology, Kyungpook National University) ;
  • Jo, Woo-Sik (Department of Agricultural Environment, Kyungbuk Agricultural Technology Administration) ;
  • Moon, Kwang-Deog (Department of Food Science and Technology, Kyungpook National University)
  • 김도희 (경북대학교 식품공학부) ;
  • 최혜진 (경북대학교 식품공학부) ;
  • 조우식 (경상북도농업기술원 농업환경연구과) ;
  • 문광덕 (경북대학교 식품공학부)
  • Received : 2012.04.02
  • Accepted : 2012.04.13
  • Published : 2012.06.30

Abstract

The effect of the wavelength of the light emitted by the light-emitting diode (LED) on the growth characteristics and physicochemical and sensory qualities of Pleurotus eryngii were investigated. Pleurotus eryngii were grown under different light sources: blue light (450 nm), red light (650 nm), green light (525 nm), UV-A (365 nm), and mixed light ($B^*R$, $B^*G$, $R^*G$, $B^*R^*G^*UV-A$). The quantity of LED light was set up at 50% (LED: 64.9-108.0 $pmolm-2{\cdot}s-1$;fluorescentlight:11.7lux). Fluorescent light was used as control. There were no significant differences in the flesh firmness. In the case of the Pleurotuseryngii cultivated under red, green, and mixed light ($R^*G$), the color of the pileus and the length of the stipe were similar to those of the control group. The sensory scores were not significantly different between the LED lights (red, green, and $R^*G$) and the control. Among the three LED light conditions, the sample cultivated under red light recorded the highest score. The samples under UV-A, blue, and mixed light ($B^*R$, $B^*G$, $B^*R^*G^*U$) had a dark pileus color and had a short stipe. These results showed that the wavelength of LED light affected the growth and quality characteristics of Pleurotus eryngii, and that using red LED light is preferable for the cultivation of Pleurotus eryngii with better quality.

새송이 버섯 재배에 효과적인 LED 광질을 구명하기 위하여, 청색광(450 nm), 적색광(650 nm), 녹색광(525 nm), UV-A(365 nm) 및 혼합광(청$^*$적, 청$^*$녹, 적$^*$녹, 청$^*$$^*$$^*$UV-A)의 LED광을 이용하여 재배한 새송이버섯의 품질특성을 조사하였으며, 대조구의 광원으로는 관행재배에 이용되고 있는 형광등을 사용하였다. LED의 파장이 길어질수록 총 길이가 길어지는 경향이었으며, 중량 또한 증가하는 것으로 나타났다. 또한, 섬유소, 단백질 및 무기질의 함량은 높고, 조지방의 함량은 매우 낮았으며, LED광을 이용하여 재배한 모든 구에서 조섬유 함량의 증가가 나타났다. 경도를 측정한 결과, 갓은 전반적으로 대조구와 유사한 조직감을 나타내었고, 자루는 적색광, 녹색광, 적 녹 혼합광 및 UV-A의 조건 하에서 재배한 새송이버섯이 유의적으로 낮은 것으로 나타났다. 한편, 적색광, 녹색광 및 적 녹 혼합광 처리구의 갓이 밝은 계통의 색으로 대조구의 갓 색과 유사하였고, 자루의 길이 역시 대조구와 비슷한 수준으로 생장하였다. 밝은 계통의 갓을 가진 구는 자루도 밝은 경향이었으며, 자루의 색도 측정 결과도 갓과 유사한 경향을 나타냈다. 관능평가 결과 외관이 대조구와 흡사할수록 높은 점수를 받았으며, 그 중 적색광 처리구가 선호경향이 가장 강한 것으로 나타났다. 반면, UV-A 및 청색광을 포함한 나머지 처리구는 어두운 계통의 갓으로 표고버섯 수준의 색을 띄었으며, 신장이 억제되어 짧은 자루를 가진 새송이버섯이 재배되었다. 또한, 이상의 결과로 광질은 새송이버섯의 품질에 큰 영향을 미치는 것을 알 수 있었으며, 새송이버섯 재배에 LED 기술을 접목시킬 때에는 적색광을 이용하는 것이 가장 적합한 것으로 판단된다.

Keywords

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