• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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• v.29 no.3
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• pp.145-151
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• 2023

In order to extend shelf life for rockfish fillets by modified atmosphere packaging (MAP), different package atmospheres were compared in the product quality preservation. Firstly, CO₂ solubility was measured at 0, 5, 10, and 15℃ to be incorporated into the mathematical model to predict the volume and CO₂ concentration of the package at expected storage temperature. The CO₂ solubility given in Henry's constant decreased with temperature to be fitted with a linear equation. Then air packaging as control and four MAP conditions of 100 g fillets were prepared and stored for duration of 5 days at 10℃ to compare them in the quality preservation effect. Four MAP conditions employed were CO₂(60):O₂(30):N₂(10), CO₂(60):O₂(0):N₂(40), CO₂(30):O₂(30):N₂(40) andCO₂(30):O₂(0):N₂(70). MAP conditions with high CO₂ concentration inhibited total aerobic bacteria, and the conditions containing O₂ led to low TVB-N. MAP of CO₂(60):O₂(30):N₂(10) was found to be the best condition for rockfish fillet preservation considering total aerobic bacteria growth and nitrogenous volatiles production.

• Proceedings of the Korean Society for Applied Microbiology Conference
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• 1978.04a
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• pp.98.2-98
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• 1978

호기성 발효에 있어서, 산소와 charge transfer complex를 형성할 수 있는 phenol 유도체인 guai-acol, vanillin, O-v-anillin 등과 catechol 유도체인 resorcine, adrenaline, dopamin 등이 산소와의 반응에 의하여 효과적인 산소공급 촉진제로서 이용될 수 있는가를 알아보기 위하여 합성배지중에서 나타내는 산소이동계수(KLQ)를 측정 비교하여 발효공학에의 응용가능성을 검토하였다.

• Proceedings of the Korean Society of Crop Science Conference
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• 2005.10b
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• pp.160-161
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• 2005

• Proceedings of the Korean Society of Crop Science Conference
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• 2005.10b
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• pp.162-163
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• 2005

• Proceedings of the Korea Society of Environmental Toocicology Conference
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• 1999.05a
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• pp.55-55
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• 1999

• Proceedings of the Korean Society of Applied Pharmacology
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• 1992.05a
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• pp.23-23
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• 1992

횐 쥐에서 sulfotransferase 양성균주를 검색한 결과 호기성 조건보다는 혐기성 조건의 균이 많은 것으로 나타났다. 이러한 곁과는 장내미생물의 대부분이 혐기성균이라는 것과도 일치하는 것이다. 검색용 배지에서 형광을 나타내는 Sulfotransferase를 생산하는 4개 균주에서 가장 활성이 높은 k-36균주에 대하여 동정하였다. K-36 균주는 혐기적 및 호기적 양조건에서 잘 자라는 통성혐기성균이고, Gas를 생산하며 포자를 생성하지 않는 Gram음성의 간균이었다. 이것으로 보아 이균은 Enterobacteriacease의 Klebsiella oxytoca 로 동정했다. K-36에서 분리한 Sulfotransferase의 반응양식은 p-nitrophenylsulfate와 p-nitrophenol이 반응시간과 함께 동량씩 감소하여 반응 생성물인 phenylsulfate와 p-nitrophenol을 생성시켰으며 sulfatase 반응은 진행되지 않았다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.5 no.2
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• pp.118-122
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• 2004

The food wastes recycling system should be constructed before 2005. In order to manufacture the good compost, salt remaining rate should be minimized. We studied the effective method of minimizing salt ratio by diluting with water.

• Proceedings of the Korean Society for Food Science of Animal Resources Conference
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• 2004.05a
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• pp.254-257
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• 2004

닭 도계가 완료된 도체에 $52^{\circ}C$, 1% lactic acid를 이용하여 분무세척하면 육질에 영향을 미치지 않으면서 총호기성균 뿐만 아니라 대장균, E. coli 및 L. monocytogenes의 감소에 효과적일 것으로 사료된다. 하지만 S. typhimurium를 효과적으로 감소시키기 위해서는 온도를 높이거나 처리시간을 연장시키는 것이 좋을 것으로 판단된다.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.612-613
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• 2001

산소가 고갈된 환경속에서는 패각의 폐쇄가 일어나게 되며, 종에 따라 생리적 반응은 차이가 있을지라도, 대체로 저산소에 대한 생리적 보상 기작으로서 수류의 펌프작용과 환기 및 혈중내에서의 산소 수송능력이 증가된다. 저산소상태의 환경속에서는 혐기성 대사가 증가되는 대신, 호기성 대사가 억제되므로서 보유하고 있는 에너지의 사용을 최소화하여 제한된 시간동안 저산소 및 무산소 상태에서도 생존할 수 있다. (중략)

• The Korean Journal of Food And Nutrition
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• v.10 no.4
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• pp.475-479
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• 1997

The effects of amino acids and metabolites in growth media on the biosynthesis of prodigiosin from Serratia marcescens ATCC 25419 were examined. The prodigiosin synthesis was decreased approximately by 50 to 80% by several amino acids and metabolites tested. The prodigiosin synthesis was increased approximately by 20 to 40% by a low concentration of glyoxylate(1 to 3mM) and outstandingly increased by 122% at 5mM concentration under anaerobic condition. However, the prodigiosin synthesis was decreased approximately by 50 to 90% at a high concentration(20 to 30mM) under anaerobic condition. The prodigiosin was not synthesized by pyruvate and $\alpha$-ketobutyrate under aerobic and anaerobic condition, with addition to glyoxylate under aerobic condition, among the range from 0.5 to 30mM, while the cell growth under anaerobic condition was decreased distinctly by a high concentration(20mM above) of glyoxylate. These data suggest that the growth and prodigiosin of S. marcescens is positively regulated by a low concentration of glyoxylate (1-5mM), but repressed by a high concentration of glyoxylate(20mM above) unlike pyruvate and $\alpha$-ketobutyrate.