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발효제품에서 분리한 B. subtilis의 발효성에 관한 연구
허윤행 서울保健大學 1998 論文集 Vol.18 No.1
산업화에 유용한 우수종균인 B. sμbtilis 개발의 일환으로 시판장류에서 자연번식 및 배양된 microflora에서 발효성 이 강한 B. sμbtilis 성질 을 갖는 균주들을 선정하여 실험분석하였다. 1. 선발된 균종은 B. sμbtilis의 近綠으로서 B. sμbtilis BCLE16으로 하였고 Colony는 vegetable cell에서 shape는 rod 및 elliptical이었고 크기는 0.9∼1.0×2.5∼3.6μ, 포자형성, gram 양성, indol 음성, catalase 양성이었으며 flavor와 점도는 양호하였다. 2. Colony surface는 smooth, lobate였고 모양은 ellipsoidal이었으며 균주의 당 이용에서 양성인 것은 fructose, glucose, mannose, galactose, maltose, sucrose와 glycerol이었고 lactose 및 ribose는 음성이었다. 3. 선발된 균주의 최적 pH 는 7.0∼8.0 이었고, pH 안정성은 6.0∼9.0이었으며 효소작용의 최적온도는 40℃에서 최대활성이었고 50∼60℃ 이상의 온도에서 급격한 효소활성의 감소를 나타냈다. 4. 선발균주의 대두에 대한 발효실험에서 DE(dextrinizing power)는 8.87%이었고, SA(saccharifying power)는 6.41%이었으며 Viscous 물질은 1.97% Amino-N은 2.83% 그리고 Ammonia-N은 0.18%이었다. The study was carried out to investigate for cultural Properties of B. subtilis strain selected from the grown microflora in ordinary Korean soybean paste and fermented soybean. The results were obtained as follows 1. Colony of vegetable cell of B. subtilis BCLE16 experiment named selected from various Bacillus strains was rod type and elliptical shape sizing 0.9∼1.0×2.5∼3.6μ forming spore and was gram positive, indol negative, catalase positive. It was characteristically produced good flavor and viscosity. 2. The surface of colony was smooth, lobate and ellipsoidal shape and its utilizing test of saccharides showed positive around fructose, glucose, mannose, galactose, maltose, sucrose and glycerol, on the other hand lactose and ribose were produced negative. 3. Optimum pH of the strain was indicated 7.0∼8.0 value and that stability was ranging 6.0∼9.0pH value, while optimum temperature of enzyme reaction was indicated 40℃, on the other hand its enzyme activity decreased rapidly when over 50∼60℃ degrees. 4. DE(dextrinizing power) of fermented soybean of the strain, during 24 hours was 8.87% and its SA(saccharifying power) was shown 6.41%, while viscous matter, Amino-N and Ammonia-N was 1.97%, 2.83% and 0.8% in order.
위생캔으로 제조한 상엽첨가 Asp. Rhi. Bac.속 발효된장의 품질평가와 금속물질 함량에 관한 연구
허윤행(Yun-Haeng Heo) 대한환경위생공학회 2004 대한환경위생공학회지 Vol.19 No.1
The study was canied out in order to improve the quality of fermented soybean, that is, Doenjang with strain ,mold and bactea, added mulberry leaves powder were investigated and analyzed as follows.<br/> I. The water content of samples was 38.51-50.10%, pH value 5.44-6.21 and total acidity, 2.42-3.13<br/> 2. 'The reducing sugar of content for samples was 7.01-7.24% on contrast mulberry added<br/> sample was 8.34-12.11%, Amino-N as contrast 5.96-7.63% mulberry added, 8.34-12.11% <br/> 3. In sensory evaluation test, excellent results was 2% added sample than others. 4. The heaby metals analyzed form sampls cans, iron, tin and lead content of samples were 5.63-6.03 ppm, 31.70-35.53 ppm and trace.
Effects of amplitude and frequency on the wear mode change of Inconel 690 SG tube mated with SUS 409
Yun, Jae Yong,Park, Myung Chul,Shin, Gyeong Su,Heo, Ji Haeng,Kim, Dae Il,Kim, Seon Jin Elsevier 2014 Wear: An international journal on the science and Vol.313 No.1
Steam generator (SG) tubes in certain types of nuclear power plants experience flow-induced vibrations that can result in fretting wear. The wear mode under these conditions can change with wear variables. Using a custom-designed fretting test apparatus, the effects of amplitude and frequency on wear mode changes for Inconel 690 SG tubes mated with SUS 409 were investigated. Changes in the wear mode were found by using periodic measurements of weight loss to calculate wear coefficients. The wear mode was observed to change from stick to gross slip and sliding as amplitude increased from 25 mu m to 300 pm. However, the wear mode did not change with increasing frequency or testing duration within the range of applied conditions. (C) 2014 Elsevier B.V. All rights reserved.
허은주 ( Heo Eun Ju ),유경환 ( Yu Gyeong Hwan ),허재균 ( Heo Jae Gyun ),윤종서 ( Yun Jong Seo ),김영훈 ( Kim Yeong Hun ),김진택 ( Kim Jin Taeg ),한훈 ( Han Hun ),이권행 ( Lee Gwon Haeng ),이준성 ( Lee Jun Seong ) 대한소아알레르기호흡기학회(구 대한소아알레르기 및 호흡기학회) 2004 소아알레르기 및 호흡기학회지 Vol.14 No.1
목적 : 아토피피부염은 만성적 피부 염증질환으로 활성산소는 피부염증을 유지시키는 강력한 염증성매개체로 알려져 있다. 저자들은 말초혈액 내 단핵구와 다형핵백혈구가 지속적인 피부염증반응에서 어떠한 역할을 하는지 규명하기 위해 이들 세포의 활성산소 생성 정도를 측정하였다. 방법 : 17명의 아토피피부염 환아군과 10명의 정상대조군을 대상으로 하였으며 말초혈액의 단핵구와 다형핵백혈구를 분리하여 phobol ester (PMA), adenosine triphos Purpose : Reactive oxygen species(ROS) are known as a potential mediators that sustain chronic inflammation in atopic dermatitis(AD). To determine the role of peripheral blood mononuclear leukocytes(MO) and polymorphonuclear leukocytes(PMN) in prolonged i
위생 캔으로 제조한 녹차첨가 발효된장의 품질평가와 금속물질 함량에 관한 연구
허윤행,Heo, Yun-Haeng 대한환경위생공학회 2007 대한환경위생공학회지 Vol.22 No.1
In order to improve the Quality of fermented soybean Doenjang was investigated. The samples were prepared and fermented by the koji made with A. oryzae, B. subtilis and B. natto strains, that the product added green tea powder with sanitary canned food. 1. The water content of sample was 50.30-42.14%, pH value 6.03-5.52 and total acidity, 3.01-3.87. 2. The reducing sugar content for samples was 9.35-7.81%, Amino-N, 7.96-9.21%. 3. In the sensory evaluation test, the good sensory qualify that was S-2 sample than to S-1 and S-3. 4. The heavy metals analyzed from sample cans, tin, iron and lead content were 27.31-29.04 ppm, 5.32-5.91 ppm and trace amount.