• Title/Summary/Keyword: 동충하초균

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Quality Improvement of Kochujang Using Cordyceps sp. (동충하초를 이용한 고추장의 품질개선)

  • Kwon, Dong-Jin
    • Korean Journal of Food Science and Technology
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    • v.36 no.1
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    • pp.81-85
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    • 2004
  • Quality characteristics of kochujang made with Aspergillus oryzae-and/or Cordyceps sp.-inoculated koji were investigated. Protease activity of Cordyceps sp.-inoculated koji was higher than that of A. oryzae-inoculated one. Sensory evaluation showed that kochujang made with mixture of A. oryzae-and Cordyceps sp.-inoculated koji (70 : 30, w/w) was superior to others.

Studies on Infectivity of Cordyceps, Paecillomyces japonica, on the Domestic Silkworm, Bombyx mori. (눈꽃 동충하초균의 누에감염에 관한 연구)

  • Yun, Jae-Su
    • The Korean Journal of Pesticide Science
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    • v.4 no.4
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    • pp.77-80
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    • 2000
  • This study was carried out to investigate infection process, symptoms and $LD_{50}$ values of the entomopathogenic fungus cordyceps, Paecillomyces japonica, on the domestic silkworm, Bombyx mori. Susceptibility of infection in the silkworms by cordyceps, Paecillomyces japonica, was 100% in $10^{7}$ block, 96% in $10^{6}$ block, 76% in $10^{5}$ block, 44% in $10^{4}$ block, 28% in $10^{3}$ block and 8% in $10^{2}$ block. Cordyceps, Paecillomyces japonica, was highly infectious to the silkworms. A pathogenicities of cordyceps, Paecillomyces japonica, may be highly virulent because of the low resistance or high susceptibility of the silkworms. Dosage of the pathogen of $LD_{50}$ was $3.78{\times}10^{3}\;spores/mm^{3}$.

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Investigation on Cultural Characteristics of Mycelial Growth by Cordyceps scarabaeicola (풍뎅이동충하초(Cordyceps scarabaeicola)의 균사 생장 조건 규명)

  • Lee, Jae-Keun;Choi, Young-Sang;Sung, Jae-Mo
    • The Korean Journal of Mycology
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    • v.28 no.2
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    • pp.81-87
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    • 2000
  • The optimal synthetic medium, temperature and pH range for the mycelial growth of Cordyceps scarabaeicola were PDA, $25^{\circ}C$, and pH $8.0{\sim}8.5$, respectively. The effects of carbon sources, nitrogen sources and mineral salts on mycelial growth were superior to lactose, ammonium phosphate and $CaCl_2$, respectively. Liquid spawn culture was selected out BM(brown sugar 3%, soybean flour 0.3%, potassium phosphate 0.05%, magnesium sulfate 0.05%) medium.

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Growth Inhibition of Propionibacterium acnes by mycelial culture broth of Paecilomyces japonica in the mulberry leaf extract (뽕잎 추출물배지를 이용한 눈꽃동충하초(Paecilomyces japonica) 균사체 배양액의 여드름균(Propionibacterium acnes) 생육억제 효과)

  • Park, Sang-Sang;Sung, Suk-Hee;Ryu, Young-Bae;Cho, Yong-Un;Choi, Young-Ju;Park, Ki-Hoon;Gal, Sang-Wan
    • Journal of Mushroom
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    • v.6 no.1
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    • pp.32-37
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    • 2008
  • This study was carried out to investigate the growth inhibition of Propionibacterium acnes by mycelial culture broth of Paecilomyces japonica in the Mulberry leaf extract. The growth inhibition effect of P. japonica mycelial culture broth against P. acnes in various concentration of Mulberry leaf extract was the most effective in 3% Mulberry leaf extract. The inhibition effect of P. japonica mycelial culture broth against P. acnes according to the culture time was the moust effective after 25 days mycelial cultivation. As the treating amount of the mycelial culture broth was increased, the growth inhibition effect against P. acnes was increased gradually. The growth inhibition effect of mycelial culture broth against P. acnes according to the time of heat treatment was active by 45min at $100^{\circ}C$, while it was inactive more than 60min at $100^{\circ}C$. This result suggested that the antibacterial materials are possible to be glycoside or peptides. Taken together P. japonica mycelial culture in the Mulbarry leaf extract has a possibility to be an element of skin-care cosmetics regulating the acnes.

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누에동충하초 부정형자실체 형성 원인균의 동정

  • 남성희;정이연;홍인표;지상덕;조세연;장승종;한명세
    • Proceedings of the Korean Society of Sericultural Science Conference
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    • 2003.04a
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    • pp.50-50
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    • 2003
  • 최근 누에동충하초 재배농가에서 대량발생한 오염균 중 일종은 누에치사 및 부정형 자실체를 발생시켜 생산성 감소시키고 상품성을 저하시켜 농가에 많은 피해를 가져오므로, 이상누에로부터 균을 분리하고 재접종 시험한 결과 원인균은 Paecilomyces farinosus(Holm ex S.F. Gray) Brown & Smith로 동정되었으며 특성은 다음과 같다. (중략)

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Development of cordycepin fortified meat production in Hanwoo steers I. Determination of the chemical composition and safety of Cordyceps militaris from grain or pupae and Paecilomyces tenuipes (Cordycepin 강화 한우고기 생산에 관한 연구 I. 곡립기주 동충하초 균사체의 화학적 성분 및 안전성 조사)

  • Kim, W.Y.;Lee, S.H.;Kim, D.H.;Lee, J.H.;Nho, W.G.;Hwang, J.H.;Yeo, J.M.
    • Journal of Practical Agriculture & Fisheries Research
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    • v.11 no.1
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    • pp.35-51
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    • 2009
  • Three different Cordyceps militaris(Paecilomyces tenuipes and Cordyceps militaris from grain or pupae) were analysed for their chemical composition, fatty acids composition and the concentration of amino acids, cordycepin and heavy metal to obtain basic information on them as feed supplements for livestock. The crude protein content of C. militaris from grain and pupae was 76.16 and 75.45%, respectively, being higher than that of P. tenuipes(57.21%). The concentration of linoleic acid was much higher but that of linolenic acid was much lower for C. militaris from grain than for the others. The cordycepin content was significantly higher for C. militaris from grain than for that from pupae (1.64% vs 0.68% on a DM basis). But cordycepin was not detected in P. tenuipes. Heavy metal contents(Cr, Pb, Cd, Hg) for all C. militaris were below the allowance levels recommended by Ministry of Agriculture and Forestry in Republic of Korea.

Study of optimal pathogenicity condition on cordyceps (눈꽃동충하초 및 번데기동충하초균의 적정 병원력 유지조건 구명)

  • 정이연;남성희;홍인표;유승헌
    • Journal of Sericultural and Entomological Science
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    • v.45 no.1
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    • pp.31-33
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    • 2003
  • This study was carried out to investigate pathogenicity of liquid spawns on dongchunghacho growing using silkworm, optimum infective condition for mass production and infection rate on various conservation periods and temperatures. We compared with the infection rates after conservation the liquid spawns (Paecilomyces tenuipes) at 4$^{\circ}C$ and 25$^{\circ}C$ for 10 days and 20 days. In these results, infection rate of conservated liquid spawns at 4$^{\circ}C$ was 88.0 percent in the tenth day, and then again it was 5.3 percent at 25$^{\circ}C$. Infection rates at 4$^{\circ}C$ were on the whole excellent out of long-term preservation methods.

Notes on Unrecorded Fleshy Fungi of Cordyceps in Korea (한국산(韓國産) 동충하초속(冬蟲夏草屬)의 미기록종(未記錄種))

  • Jang, Yong-Suk;Hong, Soon-Woo
    • The Korean Journal of Mycology
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    • v.14 no.1
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    • pp.85-88
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    • 1986
  • More than 40 samples of the genus Cordyceps were collected and investigated. Among them, six species were confirmed as unrecorded ones in Korea. Unrecorded species were Cordyceps alboperitheciata, Cordyceps discoideocapitata, Cordyceps intermedia, Cordyceps nigrella, Cordyceps roseostromata and Cordyceps scarabaeicola.

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