• 제목/요약/키워드: Aspergillus sydowi

검색결과 4건 처리시간 0.017초

Aspergillus sydowi SW 4-1의 지방질 생산에 관한 연구 (Production of lipid by Aspergillus sydowi SW 4-1)

  • 고경;나혜복;박성오
    • 한국식품과학회지
    • /
    • 제25권6호
    • /
    • pp.787-793
    • /
    • 1993
  • 나뭇잎, 토양, 볏짚, 깻묵, 우분, 메주로부터 지질을 다량 생산하는 곰팡이를 얻기위하여 A. sydowi SW 4-1을 분리 종정하였다. 이 균의 지질 생산 최적조건과 이 균이 생산한 지질의 화학적 특성을 연구한 결과 A. sydowi SW 4-1의 최적 배양조건인 27%의 sucrose가 함유된 배양기에 질소원은 urea로 하고 C : N 비율이 105로 17일간, $27^{\circ}C$에서 배양했을 때 생산된 균체량은 49.9g/l이었고, 지질 함유율은 건물 중량당 42.4%이었다. 최적조건에서 생산된 A. sydowi SW 4-1의 자방산 조성은 palmitic acid 27.0%, stearic acid 13.5%, oleic acid 14.9%, linoleic acid 42.3%로 linoleic acid의 함유율이 가장 높았다.

  • PDF

Impact of Fungus on Egg Shell of Tropical Tasar Silk Worm, Antheraea mylitta: An Ultra-structural Approach

  • Barsagade, Deepak Dewaji;Pankule, Sushama Dilip;Tembhare, Dnyaneshwar Bapuji
    • International Journal of Industrial Entomology and Biomaterials
    • /
    • 제18권2호
    • /
    • pp.77-82
    • /
    • 2009
  • The egg shell of the tropical tasar silkworm, Antheraea mylitta is formed from the substances secreted by the follicular epithelium during the late vitellogenic stage. TEM study reveals the inner travecular and outer lamellar layer of chorion. The travecular layer is composed of the innermost wax layer, inner and outer chorionic layer. The inner and outer chorionic layers are connected to each other by vertical pillers forming of cavities. The lamellar layer is perforated by the aeropyles. SEM study reveals the differentiation of an anterior surface of the egg shell into four zones-micropylar, edge, aeropyles crown and disc zone. In the mycosis infected eggs the aeropyles and egg-shell surface are fully packed with the hyphae of the fungus, Aspergillus sydowi blocking of plastron respiration and causing the death of developing embryo so that mycosis infected eggs become sterile.

고추가루중 미생물(微生物)의 분리(分離) 및 방사선 감수성(感受性) (Isolation of Microorganisms from Red Pepper Powder and their Radiosensitivity)

  • 최언호;김영배;이서래
    • 한국식품과학회지
    • /
    • 제9권3호
    • /
    • pp.205-210
    • /
    • 1977
  • 시판(市販) 고추가루에서 13종의 곰팡이(Aspergillus amstelodami, Asp. clavatus, Asp. flavus, Asp. chevalieri, Asp. janus var. effusus, Asp. oryzae, Asp, oryzae var. brevis, Asp. repens, Asp. sydowi, Asp. thomii, Asp. tubingensis, Penicillium thomii, Scopulariopsis brevicaulis와 5종의 세균(Bacillus pumilus, Bac. subtilis, Micrococcus luteus, M. varians, Staphylococcus aureus)이 분리(分離), 동정(同定)되었다. 이들 미생물의 방사선 감수성(感受性)($D_{10}$ 값)을 보면 곰팡이는 $14{\sim}41\;krad$, 세균은 영양세포(營養細胞)가 $11{\sim}24\;krad$, 포자(胞子)가 $190{\sim}250\;krad$이었다. 햇 고추가루 중의 곰팡이 수는 1 g당 $2{\sim}3{\times}10^2$개, 세균은 $3{\sim}6{\times}10^7$개 이므로 200 krad의 방사선 조사(照射)로서 세균의 영양세포와 곰팡이 포자는 충분히 사멸(死滅)시킬 수 있다고 생각된다.

  • PDF

면사제품(綿絲製品)에 번식(繁殖)하는 미생물(微生物)에 관(關)한 연구(硏究) (Studies on The Molds Affecting To The Cotton Textiles)

  • 한영구
    • Applied Biological Chemistry
    • /
    • 제13권3호
    • /
    • pp.243-256
    • /
    • 1970
  • Nowadays, the damages caused by molds in cotton textile goods becomes influential. In our country, however, the relations between cotton goods and molds are not investigated and studied in detail. Two hundred and fifty seven kind of mold's samples were collected in ninety places through the whole country. The molds samples are mainly gathered according to each regions and seasons from molded cotton textiles. Out of this samples, we isolated six hundred and seventy two strains of molds and the results of isolation are following. 1. The distributed molds were Aspergillus sp., Rhizopus sp., Penicillium sp., etc. among them Aspergillus sp. were most widely distributed, and next were Rhizopus sp., Penicillium sp. etc. 2. The distribution of Aspergillus sp. abounded peculiarly in the dry season, while Rhizopus sp. in the rainy season. 3. The C.M.C, descomposing enzymes forming activity on molds were greatly concerned with intensity damage of cotton textile goods. 4. The formation of C.M.C. decomposing enzyme was only influenced by physiology of each strains. 5. Regarding to the growth. a. The molds which were saprophyting on the cotton textile goods were indicated vigorous growing. b. Among isolated six hundred and seventy two strains, there were above a hundred strains which produced pigment and nearly half of them fifty nine strains were Aspergillus sp. 6. Twenty one strains in isolated six hundred and seventy two strains were indentified which can heavily damage upon cotton textile. As a results of indentification of the selected strains, the following species was abtained, Aspergillus sydowi, wentii, niger, luchuensis, flavus, fumigatus, nidulans, Penicillium frequentants, roqueforti, chrysogenum, albicans, Rhizopus oligosporus, delemar, Mucor rouxii, mucedo, Neurospora sitophila, Monilia variabilis, fructigena, Cladsporium hurbarum and Aspergillus spp. Mucor spp.

  • PDF