• 제목/요약/키워드: Sacchromyces

검색결과 37건 처리시간 0.025초

Saccharomyces uvarum에 의한 중금속 생체흡착에 관한 연구 (Biosorption of Heavy Metals by Saccharomyces uvarum)

  • 안갑환;서근학
    • 한국환경과학회지
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    • 제4권5호
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    • pp.141-141
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    • 1995
  • The waste biomass of Sacchromyces uvarum, used in fermentation industries to produce ethanol, were studied for their ability to absorb various heavy metal ions. Heavy metal ions studied in this research were Cd, Co, Cr, Cu, Ni and Pb. The order of the sorption capacity was Pb>Cu>Co=Cr=Cd>Ni. The living Sacchromyces uvarum exhibited higher metal-uptake capacity than the dead Sacchromyces uvarum. After we compare the uptake capacity of the Sacchromyces uvarum for individual metal ions with for a mixture of them, the following was observed: in the mixed heavy metal solution the uptake capacity was decreased than the one heavy metal solution. The selective uptake was observed when all . the heavy metal ions were dissolved in a mixed solution. The adsorption isotherm modelling was decribed with the Langmuir and Freundlich model. The results were in good agreement with the Langmuir model.

Saccharomyces uvarum에 의한 중금속 생체흡착에 관한 연구 (Biosorption of Heavy Metals by Saccharomyces uvarum)

  • 안갑환;서근학
    • 한국환경과학회지
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    • 제4권5호
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    • pp.527-534
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    • 1995
  • The waste biomass of Sacchromyces uvarum, used in fermentation industries to produce ethanol, were studied for their ability to absorb various heavy metal ions. Heavy metal ions studied in this research were Cd, Co, Cr, Cu, Ni and Pb. The order of the sorption capacity was Pb>Cu>Co=Cr=Cd>Ni. The living Sacchromyces uvarum exhibited higher metal-uptake capacity than the dead Sacchromyces uvarum. After we compare the uptake capacity of the Sacchromyces uvarum for individual metal ions with for a mixture of them, the following was observed: in the mixed heavy metal solution the uptake capacity was decreased than the one heavy metal solution. The selective uptake was observed when all . the heavy metal ions were dissolved in a mixed solution. The adsorption isotherm modelling was decribed with the Langmuir and Freundlich model. The results were in good agreement with the Langmuir model.

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Nicotine으로 유발된 대식세포의 hydrogen peroxide와 Nitric Oxide 생성억제에 대한 효모균발효고삼 추출물의 영향 (Effect of Sacchromyces cerevisiae-Fermented Sophorae Radix on Production of Hydrogen Peroxide and Nitric Oxide from Macrophage Treated with Nictoine)

  • 박완수
    • 동의생리병리학회지
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    • 제23권5호
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    • pp.1049-1054
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    • 2009
  • The effect of Sacchromyces cerevisiae-Fermented Sophorae Radix water extract (SFS) on production of hydrogen peroxide and nitric oxide (NO) from mouse macrophage Raw 264.7 Cells treated with nicotine (1 mM) was investigated through this study. SFS (0, 25, 50, 100, 200, 400 ug/mL) was simultaneously treated with nicotine (1 mM) during culture of 4, 20, 24, 44, 48, 68, and 72 hr. And the intracellular productions of hydrogen peroxide were measured by dihydrorhodamine 123 (DHR) assay. NO production after 24 hr treatement was measured with Griess reagent assay. SFS restored the production of hydrogen peroxide and NO reduced by nicotine (1 mM) in Raw 264.7 Cells. These results suggests that SFS could be supposed to have the immunological activity concerned with macrophage's oxidative burst including hydrogen peroxide and NO.

Effect of Sacchromyces cerevisiae-Fermented Artemisiae Argi Folium on Nitric oxide Production of Macrophage Treated with Toxicants

  • Park, Wan-Su
    • 동의생리병리학회지
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    • 제23권4호
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    • pp.883-887
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    • 2009
  • The effects of Sacchromyces cerevisiae-Fermented Artemisiae Argi Folium Water extract (AFS) on Nitric oxide production from mouse macrophage Raw 264.7 cells treated with EtOH, gallic acid, Nicotine, Acetaminophen, and Acetaldehyde were investigated through this study. AFS (0, 10, 50, 100, 200, 400 ug/mL) was simultaneously treated with EtOH (100 uM), gallic acid (100 uM), Nicotine (1 mM), Acetaminophen (2 mM), and Acetaldehyde (200 uM). And Nitric oxide production from Raw 264.7 cells was measured by Griess reagent method. AFS restorated the cellular production of Nitric oxide reduced by EtOH, gallic acid, Nicotine, and Acetaminophen in Raw 264.7 cells. AFS could be supposed to have the immuno-modulating activity concerned with macrophage's production of Nitric oxide.

EtOH 등으로 유발된 대식세포 내 hydrogen peroxide 생성억제에 대한 효모균발효애엽 추출물의 영향 (Effect of Sacchromyces cerevisiae-Fermented Artemisiae Argi Folium on Hydrogen Peroxide Production of Macrophage Treated with Toxicants)

  • 박완수
    • 동의생리병리학회지
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    • 제23권3호
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    • pp.608-612
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    • 2009
  • The effect of Sacchromyces cerevisiae-Fermented Artemisiae Argi Folium Water extract (AFS) on hydrogen peroxide production within mouse macrophage Raw 264.7 Cells treated with EtOH, gallic acid, Nicotine, Acetaminophen, and Acetaldehyde was investigated through this study. AFS (0-400 ug/mL) was simultaneously treated with EtOH, gallic acid, Nicotine, Acetaminophen, and Acetaldehyde. And the intracellular productions of hydrogen peroxide were measured by dihydrorhodamine 123 (DHR) assay. AFS restorated the intracellular productions of hydrogen peroxide reduced by EtOH, gallic acid, Nicotine, Acetaminophen within Raw 264.7 Cells. AFS could be supposed to have the immunological activity concerned with macrophage's oxidative burst.

Nicotine 등으로 유발된 인간 간조직세포 내 hydrogen peroxide 생성억제에 대한 효모균발효애엽 추출물의 영향 (Effect of Artemisiae Argi Folium Fermented with Sacchromyces Cerevisiae on Hydrogen Peroxide Production of Human Hepatocyte Treated with Toxicants)

  • 박완수
    • 동의생리병리학회지
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    • 제24권1호
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    • pp.96-101
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    • 2010
  • The purpose of this study is to investigate the effect of water extract from Artemisiae Argi Folium Fermented with Sacchromyces cerevisiae (AFS) on hydrogen peroxide production within human hepatocyte HepG2 cells treated with gallic acid, EtOH, nicotine, acetaminophen, and acetaldehyde. AFS (0~400 ug/mL) was treated with gallic acid, EtOH, nicotine, acetaminophen, and acetaldehyde. And the intracellular productions of hydrogen peroxide were measured by dihydrorhodamine 123 (DHR) assay. AFS showed the restoration of the intracellular productions of hydrogen peroxide which were reduced by gallic acid, EtOH, nicotine, acetaminophen, and acetaldehyde in HepG2 Cells. AFS could be supposed to have the hepatoprotective effect related with hepatocytologic signaling activity against gallic acid, EtOH, nicotine, acetaminophen, and acetaldehyde.

EtOH 등의 독성물질에 대한 효모균발효애엽 추출물의 간세포보호효과 (Effect of Artemisiae Argi Folium Fermented with Sacchromyces Cerevisiae on Viability of Human Hepatocyte Treated with Toxicants)

  • 박완수
    • 동의생리병리학회지
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    • 제24권2호
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    • pp.284-289
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    • 2010
  • The purpose of this study is to investigate the effect of water extract from Artemisiae Argi Folium Fermented with Sacchromyces cerevisiae (AFS) on viability of human hepatocyte HepG2 cells treated with hepatotoxicants such as EtOH, gallic acid, nicotine, acetaminophen, acetaldehyde, and lipopolysaccharide. AFS (0~400 ug/mL) was treated with EtOH, gallic acid, nicotine, acetaminophen, acetaldehyde, and lipopolysaccharide. And the viability of HepG2 cells was measured by MTT assay. AFS showed to increase significantly viabilities of HepG2 cells compared with hepatotoxicants (EtOH, gallic acid, nicotine, acetaminophen, and lipopolysaccharide) only (p<0.05). AFS could be supposed to have the hepatoprotective effect against hepatotoxicants such as gallic acid, EtOH, nicotine, acetaminophen, and lipopolysaccharide.

응집성 Sacchromyces cerevisiae 를 이용한 반복 유가식 ethanol 생산에서의 최적 운전전략 (Optimal Strategy for Ethanol Production in Repeated Fed-batch Operation Using Flocculent Sacchromyces cerevisiae)

  • 이상은;연지현;서용창;강도형;이현용;정경환
    • KSBB Journal
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    • 제25권2호
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    • pp.179-186
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    • 2010
  • 응집성 효모인 S. cerevisiae ATCC 96581를 이용한 최적의 에탄올 생산 공정 전략에 대하여 연구하였다. 효모의 특성을 고려하여, 효모 응집공정이 있는 반복 유가식 공정을 설계하였고, 이때 비멸균 포도당 분말을 매 12시간 마다 첨가하였고, 새로운 feeding medium을 24시간 혹은 36시간마다 세포 응집 후 교체 하였다. 이때 효모 응집이 없는 반복 유가식 공정과 비교 검토하였다. 최종적으로 24시간마다 세포를 응집시키고 상층배지를 제거하고 새로운 배지를 넣으면서 반복 유가식 에탄올 생산을 하는 것이 최적의 조건임을 알 수 있었고, 이때 120시간 동안 825 g의 에탄올을 생산 할 수 있었다.

효모를 이용한 glutathione의 대량 생산 및 공정 모니터링

  • 김춘광;이종일
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2003년도 생물공학의 동향(XIII)
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    • pp.145-148
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    • 2003
  • 본 연구에서는 효모 Sacchromyces cerevisiae가 글루타치온을 생산하는 최적 생산조건을 검토하였고 유가 배양을 통해 글루타치온을 대량 생산하고자 하였다. 또한 2차원 형광센서를 이용하여 글루타치온의 생산성에 영향을 줄 수 있는 각종 공정 변수를 온라인 모니터링하여 글루타치온의 생산성을 증가시키는데 이용하였다.

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유채대 가수분해물에서 inhibitor 저항성 효모선별과 이를 이용한 bioethanol 생산 (Selection of Inhibitor-resistance Yeast and its Application to Bioethanol Production in the Hydrolysate of Rape Stem)

  • 연지현;김혜지;오성호;이현용;정경환
    • KSBB Journal
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    • 제25권4호
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    • pp.401-407
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    • 2010
  • We established a strategy for bioethanol production using the hydrolysate of rape stem, in which the inhibitor cocktail was added intentionally. The final goal of this study was to circumvent the detoxification process when the hydrolysate of lignocelluloisic biomass contained the toxic substances in high concentration. When six yeast strains were examined, Sacchromyces cerevisiae ATCC 96581 and Pichia stipitis CBS 7126 were relatively resistant to inhibitor cocktail. Then, using strains 96581 and 7126, we designed a process strategy for bioethanol production, assuming that the concentration of toxic substance in the hydrolysate of rape stem was remarkably high. When strains 96581 and 7126 were inoculated simultaneously, it was observed that strain 7126 produced bioethanol as well as strain 96581, although the concentration of inhibitor cocktail was 18.2% (v/v). Finally, throughout this co-cultivation of strains 96581 and 7126, bioethanol was produced about 6.0 (g/L), and bioethanol yield reached at 0.4 (g-bioethanol/g-reducing sugar) (78.4% of theoretical value).