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하철규(Chul-Gyu HA) 산업기술교육훈련학회 2007 산업기술연구논문지 (JITR) Vol.12 No.2
This study was conducted to examine the effect of bee venom on hair loss prevention and hair growth promotion. It appeared that amount of hair loss decreased gradually and new thin hairs were generated after 9-day of 1% BVS. It gradually observed that the amount of hair were quick grown (p<0.001) after the treatment for 12 and 14 days. The bee venom was used in this study can be applied to maintenance of generation of the hair
Penicillium sp. GL-101 의 액침배양중 Mycelial Pellet 크기에 영향을 주는 배양조건 및 첨가물
이동규,강선철,하철규,이태근 한국농화학회 1999 Applied Biological Chemistry (Appl Biol Chem) Vol.42 No.3
In order to minimize the mycelial pellet formation, one of the critical obstacles during the fermentation processes of filamentous fungi, an investigation was focused on the culture conditions(media and initial inoculum) and additives(soils, surfactants and polyethylene glycol 200) when a high phosphate-dissolving fungus, Penicillium sp. GL-101, was cultured in liquid media. Culturing the strain in PDB, SDB and YPD media, their pellet sizes decreased to the order of YPD $gt; SDB $gt; PDB. And at the high concentrations of the initial inoculum in the range from 1×10³ to 1×10^6 conidia/㎖, the small sizes of pellet were formed in the PDB media. For the initial inoculum between 1x10^7 and 1x10^8 conidia/㎖, however, an amorphous pellet or loose aggregate was formed. The addition of soils, zeolite and diatomite, up to 1.0% decreased the pellet sizes to 3/4 and 1/2, respectively, but the pellet was increased to 2.5 times by the addition of bentonite. Surfactants also affected on the size of pellet; the addition of Triton X-100 and Tween 80 up to 1.0% decreased the pellet sizes maximally to 1/10 and 1/4, respectively, while SDS completely inhibited the fungal growth. Among the four additives tsted, polyethylene glycol 200 was the most effectively reduced the pellet sizes to 0.2±0.1 ㎜ that resulted in about 25- fold reduction compared to the control.