• 한국물환경학회지
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• 제29권5호
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• pp.666-673
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• 2013

Chloroform is harmful volatile organics and representatives of Trihalomethane (THM). Well-known removal methods of Chloroform are photo oxidation or OH radical oxidation. Plasma on water surface at slightly vacuum condition (45 torr) can produce OH radical and it will help chloroform removal. 81.5% of chloroform is removed by vacuum and plasma in 10 min.. Plasma can totally oxidize it till 2.8% and partially oxidize chloroform up to 18.5%. Water-surface plasma is good method to remove chloroform in short time.

• Asian-Australasian Journal of Animal Sciences
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• 제13권3호
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• pp.376-380
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• 2000

This study was conducted to investigate protein and carbohydrate utilization of Micrococcus varians, Staphylococcus carnosus and Staphylococcus xylosus. Sensitivity to pH, sodium chloride, potassium sorbate and sodium nitrite of these strains was also determined. In Chinese-style beaker sausage manufacturing, the growth rate of these strains during the curing period ($20^{\circ}C$ and $30^{\circ}C$) was evaluated. The results indicated that no strains could hydrolyze azo-casein and sarcoplasmic protein and only S. xylosus could hydrolyze gelatin at $30^{\circ}C$. All of these strains could oxidize and ferment fructose and mannitol. S. carnosus and S. xylosus could slightly oxidize lactose and utilize citrate. Arabinose was oxidized by S. xylosus and sorbitol was oxidized by S. carnosus. Growth of M. varians was restricted at pH 5.0 and S. carnosus and S. xylosus were restricted at pH 4.5. S. xylosus and S. carnosus were able to grow with 0.1~0.5% potassium sorbate, 50~200 ppm sodium nitrite or 1~15% sodium chloride. S. xylosus had a higher growth rate than the other strains. Staphylococcus species grew well during curing period of Chinese-style beaker sausage then followed by Micrococcaceae.

• The Korean Journal of Ecology
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• 제21권1호
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• pp.73-80
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• 1998

Peroxidase has been isolated to apparent homogeneity from earthworm, Lumbricus rubellus, using ammonium sulfate fractionation, Sephacryl S-2000 gel filtration, CM-cellulose cation exchange chromatography and native-PAGE elution. Some of its enzymatic characteristics were examined. The optimum pH for gruaiacol oxidation of earthworm peroxidase was determined to be 6.0, and the $K_{m}$ values against guaiacol and $H_2O_2$ were 1.25 mM and 3.4mM, respectively. When various compounds were tested as the possible substrates of the enzyme, o-dianisidine was used as the substrate. However, earthworm peroxidase could not oxidize esculetin and ferulic acid as substrates, suggesting the different characteristics of the enzyme from plant peroxidases. The optimum pH for veratryl alcohol and $H_2O_2$ oxidation was determined to be 2.5 when lignin peroxidation activity was examined. The $K_{m}$ values for veratryl alcohol and $H_2O_2$ were 0.02 mM and 0.13 mM, respectively. Furthermore, the earthworm peroxidase could oxidize phenoxyherbicides such as 2,4-D, 2,4-DP and MCPA as substrates. The optimum pHs for 2,4-D, 2,4-DP and MCPA were determined to be 4.0, 2.0 and 2.0, respectively. The most available substrate was 2,4-DP, followed by MCPA and 2,4-D when their peroxidation activities were compared.

• 한국환경과학회지
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• 제29권11호
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• pp.1025-1032
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• 2020

This work was performed to develop a dip injection wet scrubber (DIWS) system with chlorine dioxide as the oxidant. The exhaust pollutants from a lime kiln of paper-mill were introduced to the system. When NaClO₃ was used to oxidize NO into NO₂, the oxidation was unsatisfactory and the combination of HNO₃ or H₂SO₄ was required for 100% oxidation. ClO₂ is recommended to oxidize NO and SO₂ effectively. With the combination of 1^st stage of DIWS and ClO₂, 57.1% of NOx and 98% of SO₂ were effectively removed. In the case of 2^nd stage of DIWS and ClO₂, 93.5% of NOx and 99% of SO₂ were removed. The ClO₂+DIWS process was superior to the ClO₂+Scrubber process in terms of investment, running cost and NOx removal efficiency.

• 한국작물학회지
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• 제42권3호
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• pp.286-291
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• 1997

벼 담수토중직파시 산화제 종자분의에 의한 초기 출아입모 향상 효과를 시험한 결과를 요약하면 다음과 같다. 1. 산화환원전위차는 무처리가 가장 낮게 경과하였으며, KNO$_3$가 대체로 높으면서 산화 기간이 오래 지속되었던 반면 CaO$_2$는 타처리에 비해 약간 낮게 경과하는 경향이었고, 산화제처리로 출아기간동안 종자주위의 토양환원억제에 상당한 영향을 미쳤다. 2. 토양 pH변화는 무처리에서 7이상으로 가장 높게 경과하여 논토양의 환원된 상태를 보였으며, 산화제 처리구에서는 초기에 낮았다가 점차 높아지는 경향을 보였으나 무처리보다 낮아 일시적으로 토양을 산성화 시키는 효과를 보였다. 3. 입모수는 CaO$_2$가 파종후 8일경에 60%이상의 출아율을 보였고, 특이산성토 처리는 CaO$_2$ 보다는 낮았지만 무처리에 비해 입모율은 많이 향상되었다. 4. 초기생육에서 초장은 처리간 차이가 인정되지 않았고, 엽령차이는 CaO$_2$ 및 특이산성토에서 7.6매로 무처리의 6.2매에 비하여 1.4매 정도 많아 잎의 전개가 더 빨랐으며 근장 또한 CaO$_2$ 분의종자에서 10.2cm로 가장 길었고, 경수는 CaO$_2$와 특이산성토 피복종자에서 가장 많았다. 5. 본 실험에서 CaO$_2$는 입모가 균일하고 출아 소요 기간도 짧아 담수토중 직파재배에서 벼 종자 분의 재료로 가장 우수하였으며, 특이산성토분의에서도 양호하여 그 가능성을 검토할 수 있었다.

• 한국생물공학회:학술대회논문집
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• 한국생물공학회 2000년도 추계학술발표대회 및 bio-venture fair
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• pp.524-527
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• 2000

An electroenzymatic system to oxidize veratryl alcohol of on electrodes with in-situ generated hydrogen peroxide was studied. We investigated hydrogen peroxide generation, current efficiency, and veratryl alcohol oxidation in the electrode system at various conditions. The reaction rates of veratryl alcohol oxidation were compared in an electrochemical, an electroenzymatic, and an usual biochemical systems to prove the concept of electroenzymatic oxidation.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2003년도 총회 및 춘계학술발표회
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• pp.364-367
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• 2003

In this paper, we have examined the MTBE cometabolic degradation by pure culture, which is isolated gasoline contaminated aquifer. Propane was more effectively utilized as a growth substrate to oxidize MTBE. Specific substrate degradation rate was Increased with increasing initial propane amount. Respiking propane was enhanced and continued MTBE degradation and TBA observation was supported MTBE degradation. The mass balance of MTBE and TBA indicated that MTBE was oxidized to TBA as well as further oxidation of TBA.

• Journal of Microbiology
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• 제44권2호
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• pp.243-247
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• 2006

Mycobacterium sp. strain JC1 was capable of growth on benzylamine as a sole source of carbon and energy. The primary deamination of benzylamine was mediated by an inducible amine oxidase, which can also oxidize tyramine, histamine, and dopamine. Inhibitor study identified this enzyme as a copper-containing amine oxidase sensitive to semicarbazide.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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• pp.721-723
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• 2007

Commercial conductive metal inks are available, but metals used in these have unsuitable work function for efficient OLED device performance. Metals with low work function tend to oxidize easily, which makes it challenging to develop low work function metal inks. In this research we describe printed low work function Al cathode.

• 대한약학회:학술대회논문집
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• 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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• pp.317.2-317.2
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• 2002

Peroxynitrite, formed from the reaction of .O2- and .NO, is a cytotoxic species that can oxidize several cellular components such as proteins. lipids and DNA. Oxidative stress is considered to be the major cause of aging and many age-related diseases including Alzheimer's disease. rheumatoid arthritis. cancer. and atherosclerosis. ONO-, a powerful oxidant, can cause damage of proteins, lipid and DNA through nitration and oxidation. (omitted)