Journal of Mushroom (한국버섯학회지)

The Korean Society of Mushroom Science (한국버섯학회)
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Free sugar, amino acid, and beta-glucan content in Lentinula edodes strains collected from different areas

표고 수집종들의 유리당, 아미노산 및 β-glucan 함량

  • Received : 2016.05.31
  • Accepted : 2016.06.30
  • Published : 2016.06.30
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Abstract

In this study, we analyzed the nutrient composition and ${\beta}$-glucan content in Lentinula edodes fruiting bodies from different collection areas. Four types of free sugars were detected by HPLC, and the range of trehalose prevalence was 0.83% to 9%. The highest total amino acid content was observed from sawdust media cultivation of Lentinula edodes fruiting bodies, collected in China (JMI10050)The highest essential amino acid content, assessed by log cultivation of Lentinula edodes fruiting bodies, collected in Jangheung (JMI10059). Sixteen free amino acids were detected in Lentinula edodes fruiting bodies, and the major free amino acids were histidine, glutamic acid, and arginine. The highest essential amino acid including threonine, valine, methionine, isoleucine, leucine, phenylalanine, histidine, and lysine was fromsawdust media cultivation of Lentinula edodes fruiting bodies collected in China(JMI10052). The ${\beta}$-glucan content from log cultivation of Lentinula edodes fruiting bodies collected in Korea (JMI10059 and JMI10066) was higher than that from sawdust media cultivation of Lentinula edodes fruiting bodies collected in China. The highest ${\beta}$-glucan content was observed from log cultivation of Lentinula edodes fruiting bodies collected in Korea (JMI10066).

국내외에서 수집한 표고 품종을 대상으로 영양성분 및 ${\beta}$-glucan 함량을 분석한 결과 수집한 표고의 유리당 함량을 분석한 결과 총 4종의 유리당이 검출되었으며, 그 중 trehalose 함량은 시료별로 0.83~9%까지 큰 차이를 보였다. 구성아미노산 함량을 분석한 결과 총 아미노산함량은 중국 톱밥배지 표고 JMI10050에서 17,672 mg%로 가장 높게 나타났으며, 필수아미노산의 함량은 국내 원목재배표고 JMI10059에서 6,211 mg% 가장 높게 나타났다. 유리아미노산 함량을 분석한 결과, 총 16종의 아미노산이 검출되었으며, 주요 유리아미노산으로는 histidine, glutamic acid 및 arginine으로 나타났다. 필수 유리아미노산인 threonine, valine, methionine, isoleucine, leucine, phenylalanine, histidine 및 lysine의 함량은 중국 톱밥배지 표고 JMI10052에서 521.06 mg%로 가장 높게 나타났다. 중국에서 수집한 표고에 비하여 국내에서 재배된 표고의 ${\beta}$-glucan이 약 10% 가량 높게 검출되었고, 그 중 국내원목재배 표고 JMI10066이 31.74%로 가장 높은 함량을 나타냈다.

Keywords

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