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Comparison of the physiological activities of Korean and Chinese Auricularia auricula and Tremella fuciformis extracts prepared with various solvents

한국 및 중국산 목이 및 흰목이의 추출용매에 따른 생리활성 성분 비교

  • An, Gi-Hong (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Han, Jae-Gu (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Lee, Kang-Hyo (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Cho, Jae-Han (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA)
  • 안기홍 (농촌진흥청 국립원예특작과학원 인삼특작부 버섯과) ;
  • 한재구 (농촌진흥청 국립원예특작과학원 인삼특작부 버섯과) ;
  • 이강효 (농촌진흥청 국립원예특작과학원 인삼특작부 버섯과) ;
  • 조재한 (농촌진흥청 국립원예특작과학원 인삼특작부 버섯과)
  • Received : 2019.05.23
  • Accepted : 2019.06.21
  • Published : 2019.06.30

Abstract

The aim of this study was to evaluate the physiological activities of hot-water and 70% ethanol extracts of three edible mushroom species (Auricularia auricula, Tremella fuciformis, and Lentinus edodes) cultivated in Korea and China. The DPPH radical scavenging activities of hot-water extracts of Korean A. auricula, T. fuciformis, and L. edodes were significantly higher than those of the Chinese counterparts (p < 0.01). However, the nitrite scavenging activities of the hot-water extracts did not significantly differ among the mushrooms regardless of their origins. Chinese A. auricula showed the highest nitrite scavenging activity in the ethanol extract. The total polyphenol contents of the ethanol extracts of the three edible mushroom species from both of the countries were higher than those of the hot-water extracts. Korean A. auricula and T. fuciformis yielded a high polyphenol content with hot-water extraction. The ${\beta}-glucan$ contents of the Chinese A. auricula, T. fuciformis, and L. edodes extracts were 20.49%, 31.43%, and 30.09%, respectively, which were higher than those of the Korean counterparts. From the results of this study, it can be deduced that the maximum yield of nutritional ingredients can be extracted by using the optimal solvent for each mushroom species. These results are expected to be useful in appreciating the difference among extracts of Korean and Chinese edible mushrooms in terms of their physiological activities in the solvents used.

Keywords

${\beta}-glucan$;DPPH scavenging activity;Extraction solvent;Nitrite scavenging activity;Total polyphenol content

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Fig. 1. DPPH radical scavenging activities of (A) hot-water and (B) 70% ethanol extracts (1mg/ml concentration) from different three edible mushrooms (Auricularia auricula, Tremella fuciformis, and Lentinus edodes) produced in Korea and China. White bars indicate positive control. The results represent by the mean±SD of values obtained from three replications. *, ** is p<0.05 and p<0.01, respectively. NS is no significant difference between the two mushroom producers.

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Fig. 2. Nitrite scavenging activities of (A) hot-water and (B) 70% ethanol extracts (1mg/ml concentration) from different three edible mushrooms (Auricularia auricula, Tremella fuciformis, and Lentinus edodes) produced in Korea and China. White bars indicate positive control. The results represent by the mean±SD of values obtained from three replications. *, ** is p<0.05 and p<0.01, respectively. NS is no significant difference between the two mushroom producers.

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Fig. 3. Total polyphenol contents of (A) hot-water and (B) 70% ethanol extracts (1mg/ml concentration) from different three edible mushrooms (Auricularia auricula, Tremella fuciformis, and Lentinus edodes) produced in Korea and China. White bars indicate negative control. The results represent by the mean±SD of values obtained from three replications. *, ** is p<0.05 and p<0.01, respectively.

Table 1. ANOVA results for the effects of extraction solvents (hot-water and 70% ethanol) on DPPH scavenging activities, nitrite scavenging activities, and total polyphenol contents of the three type of edible mushrooms (Auricularia auricula, Tremella fuciformis, and Lentinus edodes) produced in Korea and China.

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Table 2. Total glucan, α-glucan and β-glucan contents from three types of edible mushrooms produced in Korea and China. Values given here are the means of three replicates (n=3). Means with different letters are significantly different by Duncan’s multiple range test (p<0.05).

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Acknowledgement

Supported by : 국립원예특작과학원

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