• 한국식품영양학회지
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• 제35권4호
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• pp.259-267
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• 2022

The purpose of this study was to evaluate the antioxidative activities of jeolpyun containing Cnidium officinale M extract (2%, 4%, 6%, 8%) by total polyphenol contents, electron donating ability on 2,2-diphenyl-1-picrylhydrazyl (DPPH), scavenging ability of superoxide anion radical and decomposing ability of hydrogen peroxide. In chromaticity analysis, the brightness significantly decreased with increasing Cnidium officinale M extract content. Jeolpyun containing 8% Cnidium officinale M extract revealing the highest value for the redness and the yellowness, 1.07, 12.70, respectively. The total polyphenol contents of jeolpyun containing 8% Cnidium officinale M extract were the highest content of 4,213 ㎍ gallic acid equivalent (GAE)/mL. The total polyphenol contents revealed significant difference (p<0.05). Jeolpyun containing 8% Cnidium officinale M extract revealing the highest electron donating ability (83.55%). The electron donating abilities were significantly related at p<0.05. The scavenging abilities of superoxide anion radical for jeolpyun containing 4% Cnidium officinale M extract revealed the highest ability (0.01676). There was no significant difference. The hydrogen peroxide decomposing ability for jeolpyun containing 8% Cnidium officinale M extract revealed the most hydrogen peroxide decomposing ability (-0.193) and the hydrogen peroxide decomposing ability revealed a significant difference (p<0.05).

• 한국임상보건과학회지
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• 제11권1호
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• pp.1625-1631
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• 2023

Purpose The The purpose of this study was to clinically evaluate the efficacy and safety of a self-whitening patch containing a primer containing taurine and 3.0% hydrogen peroxide. Methods A double-blind randomized clinical trial was conducted on 55 subjects. The whitening patches containing 3.0% hydrogen peroxide were applied to the labial surfaces of maxillary six anterior teeth once daily for 30 minutes using a primer, and whitening efficacy was measured by △E^* values before application and at 3, 5, 7, and 10 days after application. Stability was determined using the Gingival index (GI) and visual analogue scale (VAS). Results Changes in △E^* values were clinically recognizable as early as day 5 after patch application, and whitening effects were visible by day 7. There was no statistically significant difference in gingival index (p=0.069). Conclusions Self-whitening patches using primer and 3.0% hydrogen peroxide applied once daily for 30 minutes showed effective whitening effect from the 5th day after application and could be used safely without significant side effects.

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2003년도 춘계학술대회 논문집
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• pp.237-238
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• 2003

과산화수소와 organic peroxide는 대류권내 광화학반응에서 생성되는 중요 부산물이다. 이들은 대류권내의 OH와 HO$_2$ 라디칼의 농도를 지시하여 대기의 산화도를 나타내는 지시자가 된다. 이 라디칼들은 $O_3$를 생성하는데 필수적인 성분이므로, 대류권내 광화학 반응을 이해하기 위해서는 과산화수소의 농도와 분포를 이해하는 것이 필수적이다. 대기중의 hydroperoxide는 유리코일 내에서 포집 용액에 의해 포집된 후 HPLC 시스템의 postcolumn reactor에서 효소와 반응하여 형광을 띠게 되고, 형광검출기에서 검출된다. 이 모든 과정은 자동화되어 과산화수소의 실시간 관측 및 연속관측이 가능하게 되었다. (중략)

• 한국인쇄학회지
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• 제26권1호
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• pp.65-72
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• 2008

Kappa number and brightness were more increased with treatment of endo-xylanase than hydrogen-peroxide. In pulp bleaching process, endo-xylanse was most effective in the other enzyme treatment. Exo-xylanase was effective more than 4 unit treatment. Kappa number was tiny increased with enzyme ratio, but less than 4 unit treatment, increased with hydrogen peroxide treatment ratio. In more than 4 unit acetyl-estease treatment, Kappa number and brightness were not influenced with enzyme treatment ratio, but concentration of hydrogen-peroxide.

• Environmental Analysis Health and Toxicology
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• 제11권3_4호
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• pp.69-73
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• 1996

Brazilin was tested for its ability to inhibit alloxan induced lipidperoxidation. Lipid peroxide contents in liver, kidney and serum were measured by the TBA method. ICR mice receiving alloxan at a dose of 43mg/kg via the tail vein after a 24 hrs starvation showed significantly increased lipid peroxide contents as compared to untreated control. Lipid peroxide contents in liver, kidney and serum of alloxan-induced diabetic mice were dosedependently decreased by the treatment of brazilin at a dose of 10mg/kg, 50mg/kg, 100 mg/kg for 5 days.

• 약학회지
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• 제38권6호
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• pp.770-774
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• 1994

The chemical constituents of Kyllinga brevifolia Rottb. var. leiolepsis Hara (Cyperaceae) were studied. From the chloroform and n-butanol soluble fractions, five compounds were isolated by chromatographic purification process. They were identified as ${\beta}-sitostenone$, ergosterol peroxide, ${\beta}-sitosterol$, ${\beta}-sitosteryl$-3-O-{\beta}-D-glucopyanoside and vitexin, respectively. This is the first report of the identification of ${\beta}-sitostenone$, ergosterol peroxide from Cyperaceae.

• 대한화학회지
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• 제15권5호
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• pp.223-228
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• 1971

In the electrolytic preparation of persulphate from sulphate solution, the current efficiency decrease with temperature increase at the platinum anode. But in case of electrodeposited lead peroxide anode, the current efficiency increase with temperature of the solution. The reason seems to be that the ozone formation is faster in platinum anode than in lead peroxide as temperature increase.

• 대한치과보존학회:학술대회논문집
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• 대한치과보존학회 2001년도 추계학술대회(제116회) 및 13회 Workshop 제3회 한ㆍ일 치과보존학회 공동학술대회 초록집
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• pp.591.1-591
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• 2001

This study was performed to evaluate internal bleaching effect of various bleaching agent on discolored nonvital teeth. 40 Human teeth were intentionally discolored with erythrocytes of human blood and randomly divided into 4 groups: 10% carbamide peroxide gel (Opalescence, Ultradent, U.S.A.); 15% carbamide peroxide gel; sodium perborate (Duksan pure chemical Co., Korea) with distilled water; sodium perborate with 30% hydrogen peroxide (Duksan pure chemical Co., Korea).(omitted)

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2002년도 춘계학술대회 논문집
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• pp.111-112
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• 2002

대기 중에 존재하는 hydrogen peroxide($H_2O$$_2$)는 특별한 source를 통해 배출되기보다는 오존이 광분해 되어 수증기와 반응하여 생성된 hydroperoxy radical (HO$_2$)의 self-reaction이나, 대기 중으로 배출된 VOCs의 산화 과정과 같은 광화학적 기원으로 생성된다. 이렇게 생성된 $H_2O$는 오존(O$_3$), hydroxy radical(OH)과 함께 대기 중으로 배출되는 물질과 반응하여 그 농도를 감소시키는 산화제를 역할을 한다. (중략)

• 혜화의학회지
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• 제10권1호
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• pp.483-487
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• 2001

Morus alba extract(MAE) was tested for its ability to inhibit alloxan induced lipidperoxidation. Lipid peroxide contents in serum, liver, kidney and heart were measured by the TBA method. ICR mice receiving alloxan at a dose of 6mg/kg intraperitoneally after a 24hrs starvation showed significantly increased lipid peroxide contents as compared to untreated control. Lipid peroxide contents in serum, liver, kidney of alloxan-diabetic mice were decreased by the treatment of MAE at the dose of 50mg/kg, 100mg/kg for 7 days.