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이지현,박혜영,원주인,박혜인,최인덕,이석기,박지영,조동화,전용희,오세관,한상익,최혜선,Lee, Ji Hyun,Park, Hye Young,Won, Ju In,Park, Hye In,Choi, In Duck,Lee, Seuk Ki,Park, Ji Young,Joe, Dong Hwa,Jeon, Yong Hee,Oh, Sea Kwan,Han, Sang Ik,Ch 한국식품저장유통학회 2017 Food Science and Preservation Vol.24 No.6
요구르트는 유산균을 이용하여 제조한 대표적인 유발효식품이다. 국내 유통되고 있는 요구르트는 약 30개의 업체에서 생산되고 있으며, 최근 당 저감화 정책 실시로 저당제품이 출시되고 있다. 본 연구는 국내 시판되고 있는 액상타입의 요구르트를 수집하여 제품의 일반적인 특성을 조사하였고, pH, 산도, 당도, 점도, 호기성 혐기성 유산균수를 측정하여 기초자료로 사용하고자 하였다. 탈지분유(97%) 및 원유(57%)가 주된 원료로 높은 빈도로 사용되고 있으며, 발효스타터는 요구르트에 100% 이용되고 있으며 주로 수입균주가 이용되고 있다. 당은 sucrose, oligosaccharide, xylitol이 첨가되었고, 그 외 구연산, vitamin C, gum류 등이 요구르트의 기능성과 물성 등을 개선하고자 하는 부원료로 사용되고 있는 것을 확인하였다. 30종의 요구르트의 품질특성을 분석한 결과 pH는 3.6-4.6, 당도는 7.4-21.2%, 총산도는 0.4-0.9%, 호기성 유산균수 7.2-11.3 log CFU/mL, 혐기성 유산균수는 8.0-11.5 log CFU/mL로 분석되었다. 본 연구에서 도출된 시판 액상타입 요구르트의 품질분석 결과는 다양한 소재를 접목한 요구르트 개발의 품질규격설정의 기초자료로 유용 할 것으로 사료된다.
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이지현,김영소,이종길,이혁구,한성순,Lee, Ji-Hyun,Kim, Young-So,Lee, Chong-Kil,Lee, Hyuk-Koo,Han, Seong-Sun 한국생약학회 1999 생약학회지 Vol.30 No.1
To search for less toxic antiherpetic agents, the inhibitory effects of twelve kinds of flavonoids including chrysin, quercetin, quercitrin, rutin, fisetin, gossypin, kaempferol, morin, naringenin, naringin, hesperetin and hesperidin on the plaque formation of herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) in Vero cells were examined by plaque reduction assay in vitro. Some flavonoids tested in this study showed potent antiherpetic activity, reducing intracellular replication of herpes simplex viruses when Vero cell monolayers were infected and subsequently cultured in medium containing flavonoids. Naringenin showed the most potent antiviral activity against HSV-1 with selectivity index (SI) of 19.1 and hesperetin showed the most potent antiviral activity against HSV-2 with SI of 9.8. These results suggest that some flavonoids may be a potential therapeutic agent for the treatment and prevention of herpes simplex virus infections.
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큰느타리버섯의 신선도 유지기간 연장을 위한 CO<sub>2</sub> 처리 효과
이지현,최지원,홍윤표,최현진,김지강,Lee, Ji-Hyun,Choi, Ji-Weon,Hong, Yoon-Pyo,Choi, Hyun-Jin,Kim, Ji-Gang 한국버섯학회 2014 한국버섯학회지 Vol.12 No.4
King oyster mushrooms(Pleurotus eryngii) are the second biggest mushroom for exporting in Korea but their browning and soft rot is the main factors of claim during long distance transportation. Fresh king oyster mushrooms were treated with $CO_2$ at 30, 50% for 3 hours at $5^{\circ}C$ prior to storage at $20^{\circ}C$ and $5^{\circ}C$. There was no difference on respiration rate after $CO_2$ treatment. However exposure to $CO_2$ for 3h prior to MA packing maintained the firmness and delayed color(hunter L and b value) change of mushrooms during storage. Especially an incubation in high $CO_2$ at 30% significantly reduced soft rot and browning symptoms resulting in one week extension of shelf-life during storage at $5^{\circ}C$ compared to control and 50% $CO_2$ treatment.
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합성골 이식재인 Macroporous biphasic calcium phosphate를 이용한 사람의 상악동 거상술-증례 보고
이지현,정의원,김창성,최성호,조규성,Lee, Ji-Hyun,Jung, Ui-Won,Kim, Chang-Sung,Choi, Seong-Ho,Cho, Kyoo-Sung 대한치주과학회 2006 Journal of Periodontal & Implant Science Vol.36 No.2
Background Several bone grafting materials have been used in sinus augmentation procedures. Macroporous Biphasic Calcium Phosphate($MBCP^{TM}$) consists of the mixture of 60% HA and 40% ${\beta}-TCP$. Therefore, it can provide good scaffold for the new bone to grow owing to HA, in the other hand, it can have bioactivity for bone remodeling owing to ${\beta}-TCP$. The purpose of this study was to evaluate bone formation following maxillary sinus augmentation using $MBCP^{TM}$ by means of histologic analysis. Material and Method $MBCP^{TM}$ was placed as a primary bone substitute for maxillary sinus augmentation. Three patients were selected after evalaution of their medical dental examination. $MBCP^{TM}$ only, $MBCP^{TM}$ combined with Irradicated cancellous bone and $MBCP^{TM}$ combined with autogenous bone were used for each patient. After about eight months, bone biopsies were harvested for histologic evaluation and fixtures installed. Results Eight months after surgery we observed new vital bone surrounding $MBCP^{TM}$ particle and the amount of new bone was about 30% even though there were discrepancies between specimens. This case report documents that $MBCP^{TM}$ when used as a grafting material for sinus floor augmentation whether combined other bone graft material or not, may lead to the predictable results for dental implants on posterior maxillary area with insufficient vertical height for fixture installation.
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이지현,Lee, Ji-hyun 대한건축사협회 2015 건축사 Vol.2015 No.10
이번에 소개할 건물은 대만의 항구도시로써 국제적 요충지 구실을 하면서 문화적으로 점차 융성해 가고 있는 가오슝에 위치하고 있는 국립 예술 가오슝 센터(The National Kaohsiung Center for the Arts(Wei-Wu-Ying)) 이다. 2000 좌석의 콘서트홀과 2250 석의 오페라홀, 이외에도 크고 작은 극장을 겸비하고 있는 이 시설은 네덜란드의 건축사 그룹 Mecanoo에 의해서 설계되었다. 이곳은 전 군사기지였던 곳을 아열대 공원으로 형성시킨 숲을 바라보는 곳에 위치한다.
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살균수 발생장치에 의해 생성된 양치용액이 치주질환에 미치는 효과
이지현,윤정호,최성호,조규성,Lee, Ji-Hyun,Yun, Jeong-Ho,Choi, Seong-Ho,Cho, Kyoo-Sung 대한치주과학회 2004 Journal of Periodontal & Implant Science Vol.34 No.3
The aim of this study was to evaluate the clinical efficacy of mouthrinses prepared by sterilized water-generating $device(Purister^{(R)})$ on the control of gingivitis and incipient periodontitis when it was used as a adjunctives to the mechanical plaque control. 40 healthy patients with gingivitis or incipient periodontitis were divided into two groups. Patients in the experimental group use mouthrinses prepared by sterilized water-generating $device(Purister^{(R)})$ after tooth brushing while patients in the control group do only tooth brushing for plaque control. All patients received scaling and tooth brushing instruction. 1 week after scaling was set as baseline. Probing pocket depth, clinical attachment level, and bleeding on probing were scored at baseline, 4 weeks. Gingival index and plaque index were scored at baseline, 2 weeks, and 4 weeks. The results were as follows: 1. In the experimental group, gingival index, plaque index, probing pocket depth, and clinical attachment level showed statistically significant decrease, but in the control group, significant increase(p<0.05). 2. There was no significant difference between the experimental and the control group in bleeding on probing, but significant decrease in the experimental group and Significant increase in the control group In a time-dependent manner(p <0.05). From these results, it can be concluded that regular use of mouthrinses prepared by sterilized water-generating $device(Purister^{(R)})$ as adjunctives of mechanical plaque control, may be effective to prevent and treat gingivitis and incipient periodontitis.
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