가스상 대기오염물질에 의한 종이 기록물의 가속열화 특성 연구

정소윤(So-Yoon Jeong),전수연(Soo-Yeon Jeon),백소라(So-Ra Baek),정현석(Hyun-Seok Jeong),이진희(Jin-Hee Lee),김형진(Hyoung-Jin Kim) 한국펄프·종이공학회 2015 펄프.종이기술 Vol.47 No.4

Paper records were generally degraded by some factors from atmospheric environments, like temperature, relative humidity or air pollutants. In this study, the degradation behavior of paper records by single or mixed gases of NO₂, SO₂, HCHO and TVOC was evaluated. The mechanical, optical and chemical properties of 4 kinds of paper (acid and neutral-based printing paper, traditional Hanji, and filter paper) were directly and indirectly affected by gaseous harmful materials. The brightness and L<SUP>*</SUP> value in all papers were slightly increased by accelerated aging under gaseous HCHO and TVOCs, but highly decreased by conditions under gases NO₂ and SO₂. The optical properties of paper records were most vulnerable in acid-based paper and high stable in filter paper and traditional Hanji by air pollutant degradation. The aging treatments under mixed gas pollutants including NO₂ resulted in decrease of physical, mechanical and optical properties of paper, so it was supposed that the concentration of NO₂ gas would be strictly controlled for optimum indoor air quality management in domestic storage centers for paper records.

Ferulic acid와 p-hydroxybenzoic acid가 첨가된 기능성 머핀의 관능적 특성

전소윤,정소혜,김효정,김미라 한국조리과학회 2002 한국식품조리과학회지 Vol.18 No.5

The physical and sensory characteristics of muffins prepared with flavonoids such as ferulic acid and p-hydroxybenzoic acid were evaluated for the development of functional foods using these flavonoids. The solubilities of ferulic acid and p-hydroxybenzoic acid were over 1% in water and the solutions showed a good thermal stability. However, 1% ferulic acid and p-hydroxybenzoic acid solution showed a color change during heating. The volume and maximum height of the control muffin were the greatest among the muffin groups. The volume of the muffins decreased with the increase of flavonoid concentration. The volumes of muffins with p-hydroxybenzoic acid were smaller than those of muffins with ferulic acid. The L, a and b values on crust and crumb of the muffin groups were not significantly different. The chemical flavor, bitterness and after taste of the muffins prepared with ferulic acid were stronger than those of the control muffins. Savory flavor and sweetness of the muffins with ferulic acid were weaker than those of the control muffins. The muffins with p-hydroxybenzoic acid were not significantly different from the control muffins in the appearance, flavor, taste, texture and overall acceptability. These results demonstrated that p-hydroxybenzoic acid may be useful as an additive to muffin.

응급실에 내원한 환자에서 어지럼증의 원인과 임상양상의 분석

문원식,정경운,위준선,문정미,전병조,김용권,소정일,류진호,허탁,민용일 대한응급의학회 2001 대한응급의학회지 Vol.12 No.3

Background: Recently, The number of patients who have been complaining of the vertigo or dizziness has been increasing due to rapid growth of elderly population and senile disease. The differentiation of dizzy patients is not familiar to most emergency physicians. This study was designed to differentiate true vertigo and to investigate the clinical difference among central vertigo, peripheral vertigo, and other causes of dizziness. Methods: The authors analyzed the cases of 237 dizzy patients who visited the emergency department of Chonnam University Hospital during the recent 2 years. For the base of dizziness, associated past illnesses, severity, nystagmus type, and the causes of central and peripheral vertigo. Results: Female patients were 142(59.9%) and male patients were 95(40.1%). The most common age group was the 6th decade. The origin of dizziness was classified as peripheral cause(25.3%), central cause(32.9%), and others(41.8%). As to nature of the dizziness, the rotatory sense was dominant in peripheral vertigo and the floating sense and blurred vision in central vertigo. Peripheral vertigo was triggered by position change of head and body, and central vertigo by the eye movement. Audiograms I showed that most patients with central vertigo had normal hearing, but 46.7% of thoswith peripheral vertigo had an abnormal hearing disturbance. Nystagmus was more prevalent in peripheral vertigo Conclusion: History taking and physical examination played an important role in the diagnosis of dizzy patients. An important part of the diagnosis of a dizzy patient could be to evaluate the peripheral origin, the central origin and others causes. Because central vertigo may be associated with a significant neurological pathology, spectral radiological studies, including MRI and CT, are mandatory to rule out a devastating brain lesion.

항문주위 괴사근막염 수술 후 발생한 두덩결합 골수염의 경험

김지연,김태형,추은주,전민혁,이은정,김종화,박의주,이재철,진소영 대한감염학회 2009 감염과 화학요법 Vol.41 No.3

Osteomyelitis of the pubic symphysis is not common and has often been reported to occur after urological or gynecological procedures, It can be spontaneous in origin but it also is associated with trauma, athletic exertion, pregnancy, and parturition. The early symptoms of osteomyelitis of the pubic symphysis mimic those of osteitis pubis and therefore, the differential diagnosis between these two entities is of clinical importance. A fifty nine-year-old man who had previously received debridement and wide excision of perianal necrotizing fasciitis visited our hospital with pain on both inguinal areas. The core biopsy of the pubic symphysis and aspiration culture were performed, from which Pseudomonas aeruginosa was recovered. He was treated with parenteral ceftazidime for 5 days followed by cefepime for 7 weeks and showed favorable clinical response. To our knowledge this is the first report on osteomyelitis of pubic symphysis resulting from debridement and wide excision of perianal necrotizing fasciitis in Korea.

Isolation of a Calcium-binding Peptide from Chlorella Protein Hydrolysates

So Jeong Jeon,Ji Hye Lee,Kyung Bin Song 한국식품영양과학회 2010 Preventive Nutrition and Food Science Vol.15 No.4

To isolate a calcium-binding peptide from chlorella protein hydrolysates, chlorella protein was extracted and hydrolyzed using Flavourzyme, a commercial protease. The degree of hydrolysis and calcium-binding capacity were determined using trinitrobenzenesulfonic acid and orthophenanthroline methods, respectively. The enzymatic hydrolysis of chlorella protein for 6 hr was sufficient for the preparation of chlorella protein hydrolysates. The hydrolysates of chlorella protein were then ultra-filtered under 5 kDa as molecular weight. The membrane-filtered solution was fractionated using ion exchange, reverse phase, normal phase chromatography, and fast protein liquid chromatography to identify a calcium-binding peptide. The purified calcium-binding peptide had a calcium binding activity of 0.166 mM and was determined to be 700.48 Da as molecular weight, and partially identified as a peptide containing Asn-Ser-Gly-Cys based on liquid chromatography/electrospray ionization tandem mass spectrum.

Anti-inflammatory effect of Equisetum hyemale via suppression of nuclear factor-κB activation in human mast cells

Jeon, So-Ra,Na, Ho-Jeong,Jeon, Hoon Kyung Hee Oriental Medicine Research Center 2009 Oriental pharmacy and experimental medicine Vol.9 No.2

Equisetum hyemale Linne. (EH) (Equisetaceae) has been used for the treatment of eye and skin disease, chronic eczema, pneumoconiosis and asthma in Korea and China. Human leukemic mast cells are widely distributed in the connective tissues of mammals and other vertebrates. Phorbol 12-myristrate 13-acetate (PMA) and calcium ionophore A23187 stimulated Human leukaemic mast cell line-1 (HMC-1) can produce a variety of inflammatory mediators and several pro-inflammatory and chemotactic cytokines such as TNF-$\alpha$, IL-6 and IL-8. Since TNF-$\alpha$, IL-6 and IL-8 are major factors during the inflammatory process, we studied the effects of EH on TNF-$\alpha$, IL-6 and IL-8 release in HMC-1 stimulated with PMA and A23187. The result of this study indicate that EH inhibits TNF-$\alpha$, IL-6 and IL-8 in activated HMC-1 cells via $I{\kappa}B$/Nuclear factor-${\kappa}B$ pathway. Therefore, EH might contribute significantly to the prevention or treatment of mast-cell mediated inflammatory diseases and EH has potential use in the therapy of chronic allergic inflammation.

Short Communication : Isolation of a Calcium-binding Substance from Anchovy

So Jeong Jeon,Won Gon Kim,Kyung Bin Song 한국응용생명화학회 2010 Journal of Applied Biological Chemistry (J. Appl. Vol.53 No.4

Dried anchovy (Engraulis japonica) was extracted using hot water and filtered with a YM-3 membrane to isolate a calcium binding substance. The membrane filtered solution was fractionated using gel permeation chromatography, ion exchange chromatography, rev

[P3-13] Isolation of Biomineral Peptides from Deffated Rice Bran Protein Hydrolysates

So Jeong Jeon,Ji Hye Lee,Kyung Bin Song 한국식품영양과학회 2010 한국식품영양과학회 학술대회발표집 Vol.2010 No.10

Isolation of a Calcium-binding Peptide from Chlorella Protein Hydrolysates

Jeon, So-Jeong,Lee, Ji-Hye,Song, Kyung-Bin The Korean Society of Food Science and Nutrition 2010 Preventive Nutrition and Food Science Vol.15 No.4

To isolate a calcium-binding peptide from chlorella protein hydrolysates, chlorella protein was extracted and hydrolyzed using Flavourzyme, a commercial protease. The degree of hydrolysis and calcium-binding capacity were determined using trinitrobenzenesulfonic acid and orthophenanthroline methods, respectively. The enzymatic hydrolysis of chlorella protein for 6 hr was sufficient for the preparation of chlorella protein hydrolysates. The hydrolysates of chlorella protein were then ultra-filtered under 5 kDa as molecular weight. The membrane-filtered solution was fractionated using ion exchange, reverse phase, normal phase chromatography, and fast protein liquid chromatography to identify a calcium-binding peptide. The purified calcium-binding peptide had a calcium binding activity of 0.166 mM and was determined to be 700.48 Da as molecular weight, and partially identified as a peptide containing Asn-Ser-Gly-Cys based on liquid chromatography/electrospray ionization tandem mass spectrum.

Isolation of a Calcium-binding Substance from Anchovy

Jeon, So-Jeong,Kim, Won-Gon,Song, Kyung-Bin The Korean Society for Applied Biological Chemistr 2010 Applied Biological Chemistry (Appl Biol Chem) Vol.53 No.4

Dried anchovy (Engraulis japonica) was extracted using hot water and filtered with a YM-3 membrane to isolate a calcium binding substance. The membrane filtered solution was fractionated using gel permeation chromatography, ion exchange chromatography, reverse-phase high performance liquid chromatography, and fast protein liquid chromatography to detect calcium-binding substances. The isolated substance was identified as adenosine by nuclear magnetic resonance spectroscopy.