• Title/Summary/Keyword: Mycelial growth and density

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Substitute cheap supplements development for Pleurotus ostreatus cultivation usiug food by-product dried wastes (음식부산물 건조박을 첨가한 배지에서 느타리버섯의 균사생장 특성)

  • Chang, Hyun-You;Park, Hyun-Soo;Yoon, Jeong-Shick
    • Journal of Mushroom
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    • v.6 no.3_4
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    • pp.126-130
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    • 2008
  • The combination ratio of oyster mushroom cultivation supplements have used poplar sawdust(PS) 50% : beet pulp(BP) 30% : cotton seeds meal(CS) 20%. we substituted cotton seeds meal and beet pulp for food by-product dried wastes(DW) 10, 20. 30% respectively. In case of mixing with DW 10% except from BP, mycelial growth was inhibited a little, but mycelial density was accelerated. The more DW contents increase, the more mycelial growth was inhibited, but mycelial growth was accelerated a little, respectively. In case of mixing with DW except from CS, mycelial growth was similar to control almost. In case of mixing with DW except from CS and BP, mycelial growth was inhibited remarkably. CHUNCHU variety developed resistance to developed than SUHAN variety.

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Influence of Soaking Time of Paddy Straw on the Mycelial Growth of Oyster Mushroom, Pleurotus spp. (배지의 침수조건이 느타리버섯의 균사생장에 미치는 영향)

  • Jhune, Chang-Sung;Choo, Chang-Ho;Chang, Gap-Yeul;Paik, Su-Bong
    • The Korean Journal of Mycology
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    • v.28 no.2
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    • pp.67-72
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    • 2000
  • The purpose of this study was to investigate the change of water content in mushroom substrate, paddy straw, and the mycelial growth of oyster mushroom by various soaking time. The water content of paddy straw was gradually increased as the soaking time was getting longer. These experiments also showed that the water content in the upper part of paddy straw was less than that of the low part. The mycelial growth was the good between 4 and 12 hours soaking treatment, showing faster growth and higher density in the lower part than the upper part. However we could not found any significant variation among 5 strains of oyster mushroom in the effects of the various soaking times and soaking part. The pH of the lower part substrates had a low pH compared with that of the upper part. When pathogens and mushroom mycelia were co-inoculated on paddy straw under various soaking conditions, the mushroom mycelial growth showed fast and high density according to the increase of the soaking time. The experiment related to water transport reveals that it is not easy to move into upper part, but only soaked part by adding water is available to absorb enough water. Old straw was much better than the straw new this year one for water absorption, mycelial growth and mycelial density.

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Cultural Characteristics of Mycelial Growth by Cordyceps militaris (번데기동충하초(Cordyceps militaris)의 균사 생장)

  • Sung, Jae-Mo;Choi, Young-Sang;Shrestha, Bhushan;Park, Young-Joon
    • The Korean Journal of Mycology
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    • v.30 no.1
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    • pp.1-5
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    • 2002
  • Cultural characteristics of Cordyceps militaris preserved in EFCC, Kangwon National University were investigated for the mass production. The higher mycelial density of C. militaris was observed in Sabouraud's yeast and Yeast Malt agars, but the higher mycelial growth in Mushroom Minimal agar than other agars. The mycelium of C. militaris was observed to grow well at $25^{\circ}C$ and pH 6.0 respectively. The dextrose was found the best suitable energy source among the carbohydrates used for its mycelial growth, while the fructose or lactose observed to be well for mycelial growth. Hemoglobin was observed to be the best among the protein sources used for mycelial growth, while tryptone found to be the best in the spore formation. Similarly, the mycelial growth was best in mineral salts of $KH_2PO_4$ or $K_2HPO_4$ and the optimum C/N ratio was 100 : 1.

Cultural Characteristics of Ophiocordyceps heteropoda Collected from Korea

  • Sung, Gi-Ho;Shrestha, Bhushan;Han, Sang-Kuk;Sung, Jae-Mo
    • Mycobiology
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    • v.39 no.1
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    • pp.1-6
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    • 2011
  • Isolates of Ophiocordyceps heteropoda (Kobayasi) collected from Mt. Halla on Jeju-do, Korea were tested for mycelial growth on different agar media and in the presence of different carbon and nitrogen sources. Similarly, isolates were also incubated at different temperatures as well as under continuous light and dark conditions. Growth was better on Hamada agar, basal medium, and malt-yeast agar, but poor on Czapek-Dox agar. Different carbon sources such as dextrin, saccharose, starch, lactose, maltose, fructose, and dextrose resulted in better growth. Complex organic nitrogen sources such as yeast extract and peptone revealed the most effective growth. Mycelial growth was best at $25^{\circ}C$. The growth rate was faster in the dark than the light, but mycelial density was less compact in the dark.

Studies on Mycelial Growth and Artificial Cultivation of Pleurotus eryngii (큰느타리버섯(Pleurotus eryngii)의 균사배양 및 인공재배에 관한 연구)

  • Kang, Mi-Sun;Kang, Tae-Su;Kang, An-Seok;Shon, Hyeong-Rak;Sung, Jae-Mo
    • The Korean Journal of Mycology
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    • v.28 no.2
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    • pp.73-80
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    • 2000
  • This study was carried out to investigate the optimal mycelial growth and an artificial cultivation conditions of Pleurotus eryngii. The optimal medium for the mycelial growth and density was MYPA medium. The optimal temperature and pH for the mycelial growth were $25^{\circ}C$ and 6.0, respectively. The modified optimal medium composition were obtained to be soluble starch 3%(w/v), malt extract 0.25%(w/v), yeast extract 0.25%(w/v) and $CaCl_2{\cdot}2H_2O$ 0.05% (w/v). From the results of experiment on the nutritional requirements, the modified optimal medium was higher than MYP medium in mycelial production and growth yield (Yx/s) of Pleurotus eryngii. The optimal sawdust species of solid culture for the mycelial growth and density was Quercus spp. The optimal concentration of additives (rice bran and wheat bran) and moisture content for the mycelial growth were about 30%(v/v) and 70%(v/v), respectively. On the other hand, the optimal concentration of additives for the production of fruiting body was 20%(v/v) of rice bran.

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Mycelial Culture Characteristics of Pleurotus ferulae Strains (아위버섯(Pleurotus ferulae)의 균사배양 특성)

  • Lee, Dong-Hee;Koo, Chang-Duck;Chang, Who-Bong;Kang, Bo-Gu;Choi, Jae-Sun
    • Journal of Mushroom
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    • v.7 no.1
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    • pp.27-36
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    • 2009
  • Pleurotus ferulae is an edible mushroom found on a medicinal plant, Ferula assa-foetida, in centeral China. This study was carried out to investigate the cultural characteristics of P. ferulae strains. Characteristics of mycelial growth were investigated for 5 strains of P. ferulae. All the 5 strains showed the best mycelial growth at $25^{\circ}C$ and their growth rate was very low at $35^{\circ}C$. The colony diameter reached to 45~72 mm after 7 days at $25^{\circ}C$. Malt extract agar medium was the best for mycelial growth of the species both in hyphal length and density. Mycelial growth was not affected by various pH from 6.0 to 8.0. An optimal carbon source was arabinose and an optimal nitrogen one was arginine. And an effective substrate for the mycelial growth was 8 to 2 mixture of oak sawdust and cottonseed meal.

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Culture Conditions for the Mycelial Growth of Ganoderma applanatum

  • Jo, Woo-Sik;Cho, Yun-Ju;Cho, Doo-Hyun;Park, So-Deuk;Yoo, Young-Bok;Seok, Soon-Ja
    • Mycobiology
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    • v.37 no.2
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    • pp.94-102
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    • 2009
  • Ganoderma applanatum is one of the most popular medicinal mushrooms due to the various biologically active components it produces. This study was conducted to obtain basic information regarding the mycelial culture conditions of Ganoderma applanatum. Based on the colony diameter and mycelial density, PDA, YMA and MCM media were suitable for the mycelial growth of the mushroom. The optimum temperature for mycelial growth was found to be $25{\sim}30^{\circ}C$. The optimum carbon and nitrogen sources were mannose and dextrin, respectively, and the optimum C/N ratio was 2 to 10 when 2% glucose was used. Other minor components required for the optimal growth included thiamine-HCl and biotin as vitamins, succinic acid and lactic acid as organic acids, and $MgSO_4$ $7H_2C$, $KH_2PO_4$ and NaCl as mineral salts.

The optimal Factors for the Mycelial Growth of Sparassis crispa (꽃송이 버섯의 균사생장을 위한 최적요인)

  • Shim, Jae-Ouk;Son, Seo-Gyu;Yoon, Sang-Ook;Lee, Youn-Su;Lee, Tae-Soo;Lee, Sang-Sun;Lee, Kap-Duk;Lee, Min-Woong
    • The Korean Journal of Mycology
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    • v.26 no.1 s.84
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    • pp.39-46
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    • 1998
  • This study was carried out to obtain the basic data for artificial culture of Sparassis crispa. The optimal conditions for the mycelial growth were $25^{\circ}C$ and pH 4, respectively. The mycelial density of S. crispa was most compact in the Hamada media, whereas colony diameter was prominent in the Hoppkins media. Carbon sources such as maltose, arabinose and mannitol were favorable for stimulating a mycelial growth of S. crispa. Glycine, one of nitrogen sources also appeared to be favorable to the mycelial growth. The optimum C/N ratio was about 20 : 1 in case that 1% glucose as carbon source was mixed with the basal medium. Fumaric acid or lactic acid as organic acid was most favorable to the mycelial growth.

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The Culture Conditions for the Mycelial Growth of Phellinus spp.

  • Jo, Woo-Sik;Rew, Young-Hyun;Choi, Sung-Guk;Seo, Geon-Sik;Sung, Jae-Mo;Uhm, Jae-Youl
    • Mycobiology
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    • v.34 no.4
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    • pp.200-205
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    • 2006
  • Phellinus genus belonged to Hymenochaetaceae of Basidiomycetes and has been well known as one of the most popular medicinal mushrooms due to high antitumor activity. This study was carried out to obtain the basic information for mycelial culture conditions of Phellinus linteus, P. baumii, and P. gilvus. According to colony diameter and mycelial density, the media for suitable mycelial growth of them were shown in MEA, glucose peptone, and MCM. The optimum temperature for mycelial growth was $30^{\circ}C$. Carbon and nitrogen sources were man nose and malt extract, respectively. The optimum C/N ratio was 10:1 to 5:1 with 2% glucose concentration, vitamin was thiamine-HCl, organic acid was succinic acid, and mineral salt was $MgSO_{4}{\cdot}7H_{2}O$.

Optimal condition for mycelial growth of Sparassis crispa (꽃송이버섯(Sparassis crispa)의 균사생장 최적화)

  • Seo, Sang-Young;Yoo, Young-Jin;Jung, Gi-Tai;Ryu, Jeong;Ko, Bok-Rai;Choi, Joung-Sik;Kim, Myung-Kon
    • Journal of Mushroom
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    • v.3 no.2
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    • pp.45-51
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    • 2005
  • This study was carried out to obtain the basic data on artificial culture of Sparassis crispa. The mycelial growth and density were good in the PBA, PDA and PDM media, and especially prominent in the PBA medium. The optimum condition for the mycelial growth was $25^{\circ}C$ and pH 5.0, respectively. The carbon sources such as glucose, fructose, mannose, xylose(monosaccharide) and maltose(disaccharide) were favorable to mycelial growth of S crispa. The optimal concentration of glucose is 1.0~1.5%. As nitrogen sources, threonine, peptone, glycine, glutamine and valine appeared to be favorable to the mycelial growth and density. The optimal concentration of peptone is 0.3%.

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