Effect of steaming, freezing, and re-steaming on the texture properties of non-glutinous rice cakes

Choi, Eunhye,Jo, Hye-Eun,Sohn, Kee Hyuk,Kang, Tae-Young,Kim, Bumsik,Lee, Kang Pyo,Han, Jung Sook,Lee, Suyong,Ko, Sanghoon Korean Society of Food Science and Technology 2016 Food Science and Biotechnology Vol.25 No.4

The effects of steaming time (6, 8, and 10 min), freezing storage period, and re-steaming for thawing on the textural properties of non-glutinous rice cakes (baekseolgi) were investigated. As the steaming time increased, the rice cakes softened. In particular, the sample that was steamed for 10 min showed lower hardness than those steamed for shorter periods. A short period of steaming was insufficient for water bound to the surface of the starch granules to penetrate the granules in the dough. During the re-steaming process of the frozen non-glutinous rice cake samples, the retrogradation of starch and water syneresis contributed to the increased hardness of non-glutinous rice cakes.

The Size of Simple Craters on Earth

Eunhye Choi,Yongjae Yu 대한지질학회 2018 대한지질학회 학술대회 Vol.2018 No.10

Real-time PCR quantification of 9 periodontal pathogens in saliva samples from periodontally healthy Korean young adults

Choi, Heeyoung,Kim, Eunhye,Kang, Jihoon,Kim, Hyun-Joo,Lee, Ju-Youn,Choi, Jeomil,Joo, Ji-Young Korean Academy of Periodontology 2018 Journal of Periodontal & Implant Science Vol.48 No.4

Purpose: Few studies have examined periodontal pathogens from saliva samples in periodontally healthy young adults. The purposes of this study were to determine the prevalence of periodontopathic bacteria and to quantify periodontal pathogens in saliva samples using real-time polymerase chain reaction (PCR) assays in periodontally healthy Korean young adults under 35 years of age. Methods: Nine major periodontal pathogens were analyzed by real-time PCR in saliva from 94 periodontally healthy young adults. Quantification of Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola, Prevotella intermedia, Fusobacterium nucleatum, Campylobacter rectus, Peptostreptococcus anaerobius, and Eikenella corrodens was performed by DNA copy number measurement. Results: F. nucleatum and E. corrodens were detected in all subjects; the numbers of positive samples were 87 (92.6%), 91 (96.8%), and 90 (95.7%) for P. gingivalis, P. anaerobius, and C. rectus, respectively. Other pathogens were also detected in periodontally healthy subjects. Analysis of DNA copy numbers revealed that the most abundant periodontal pathogen was F. nucleatum, which was significantly more prevalent than all other bacteria (P<0.001), followed by P. anaerobius, P. gingivalis, E. corrodens, C. rectus, and T. denticola. There was no significant difference in the prevalence of each bacterium between men and women. The DNA copy number of total bacteria was significantly higher in men than in women. Conclusions: Major periodontal pathogens were prevalent in the saliva of periodontally healthy Korean young adults. Therefore, we suggest that the development of periodontal disease should not be overlooked in periodontally healthy young people, as it can arise due to periodontal pathogen imbalance and host susceptibility.

Effects on postoperative nausea and vomiting of nefopam versus fentanyl following bimaxillary orthognathic surgery: a prospective double-blind randomized controlled trial

Choi, Eunhye,Karm, Myong-Hwan,So, Eunsun,Choi, Yoon Ji,Park, Sookyung,Oh, Yul,Yun, Hye Joo,Kim, Hyun Jeong,Seo, Kwang-Suk The Korean Dental Society of Anesthsiology 2019 Journal of Dental Anesthesia and Pain Medicine Vol.19 No.1

Background: Postoperative nausea and vomiting (PONV) frequently occurs following bimaxillary orthognathic surgeries. Compared to opioids, Nefopam is associated with lower incidences of PONV, and does not induce gastrointestinal tract injury, coagulopathy, nephrotoxicity, or fracture healing dysfunction, which are common side effects of Nonsteroidal anti-inflammatory drugs. We compared nefopam- and fentanyl-induced incidence of PONV in patients with access to patient-controlled analgesia (PCA) following bimaxillary orthognathic surgeries. Methods: Patients undergoing bimaxillary orthognathic surgeries were randomly divided into nefopam and fentanyl groups. Nefopam 120 mg or fentanyl $700{\mu}g$ was mixed with normal saline to a final volume of 120 mL. Patients were given access to nefopam or fentanyl via PCA. Postoperative pain intensity and PONV were measured at 30 minutes and 1 hour after surgery in the recovery room and at 8, 24, 48, and 72 hours after surgery in the ward. The frequency of bolus delivery was compared at each time point. Results: Eighty-nine patients were enrolled in this study, with 48 in the nefopam (N) group and 41 in the fentanyl (F) group. PONV occurred in 13 patients (27.7%) in the N group and 7 patients (17.1%) in the F group at 8 hours post-surgery (P = 0.568), and there were no significant differences between the two groups at any of the time points. VAS scores were $4.4{\pm}2.0$ and $3.7{\pm}1.9$ in the N and F groups, respectively, at 8 hours after surgery (P = 0.122), and cumulative bolus delivery was $10.7{\pm}13.7$ and $8.6{\pm}8.5$, respectively (P = 0.408). There were no significant differences in pain or bolus delivery at any of the remaining time points. Conclusion: Patients who underwent bimaxillary orthognathic surgery and were given nefopam via PCA did not experience a lower rate of PONV compared to those that received fentanyl via PCA. Furthermore, nefopam and fentanyl did not provide significantly different postoperative pain control.

대중문화 활용 예술치료가 학교 부적응 청소년의 자기표현과 사회성 향상에 미치는 영향

최은혜(Eunhye choi),이에스더(Esther Rhee) 한국융합예술치료교육학회 2018 예술과 인간 Vol.4 No.-

오늘날 청소년들이 살아가고 있는 21세기는 여러 방면에서 빠른 변화를 맞이하여 긍정적인 측면과 동시에 역기능적인 부분이 많아지고 있다. 이러한 현시대를 살아가는 청소년 중에서는 자신이 속한 집단에서 잘 적응하지 못하거나 정서, 심리적 문제를 호소하는 청소년이 증가하고 있으며 이에 청소년들을 위한 예술치료의 필요성은 더욱 높아지고 있다. 본 연구에서는 예술치료(음악, 미술, 문학, 동작, 영상), 게슈탈트 이론(지금-여기 이론), 대중문화(영화, 가요, 미술, 잡지, 만화)를 활용한 초기 1회기, 중기 6회기, 후기 1회기로 구성된 총 8회기의 대중문화 활용 예술치료 프로그램을 C지역 내에 있는 고신 측 교단에 소속된 교회에 다니는 중, 고등학생 청소년 12명을 대상으로 진행하였다. 본 연구의 목적은 대중문화 활용 예술치료프로그램이 학교 부적응 청소년의 자기표현과 사회성 향상에 어떠한 영향을 미치는지 살펴보고 학교 부적응 청소년의 자기표현과 사회성을 향상시켜 바람직한 학교생활의 적응과 원만한 대인관계 형성을 돕는데 있다. 본 연구의 자료처리는 SPSS 24.0 프로그램을 사용하여 분석하였으며 그 결과 대중문화 활용 예술치료프로그램은 학교 부적응 청소년의 자기표현과 사회성 향상에 효과가 있는 것으로 나타났다. The 21st century, where young people are living today, is rapidly changing in many ways, creating both positive and adverse aspects. Among teenagers living in this age, an increasing number are those who can not adapt to their own groups or complain about emotional and psychological problems. Therefore, the need for art therapy for teenagers is becoming even greater. In this study, 12 students attended a church of Goshin"s within the C region of eight sessions of arts therapy programs using art therapy, gestalt theory, and pop culture. Through this program, we will find out how the program affects the improvement of the social skills and self-expression of children who are at school, and to improve the self-expression and social skills of teenagers. The data processing in this study was analyzed using the SPSS 24.0 program, and the results showed that the use of arts therapy programs is effective in improving the self-pression and sociability of young people.

드림스타트에 관한 분야별 연구동향 분석: 2008~2020년

최은혜(Eunhye Choi),황혜정(Hyejung Hwang) 한국보육지원학회 2021 한국보육지원학회지 Vol.17 No.4

Objective: The purposes of this research are to analyze former research papers regarding Dream Start according to academic field in an attempt to better understand their services and to present additional directions. Methods: The 66 research papers regarding Dream Start from 2008 to 2020 were analyzed by three categories: welfare, child care(education) and health. In each category, this research analyzed the research papers by year, research type, research subject and the research topic. Results: First, the research papers regarding Dream Start were most actively published between 2010 and 2017 and the number of research papers decreased after 2018. Second, the results regarding the type of study showed that quantitative studies were mostly performed in all, but the detailed methods used mainly differed. Third, the subjects of the study commonly included guardians. Fourth, the research topics were focused on business content, operations, and direction. Conclusion/Implications: Based on these results, welfare, child care(education) and health sectors need to make more efforts for balanced development, and integrated research and longitudinal studies are necessary. Second, further research is needed to enhance the professionalism of teachers and nurses working in the Dream Start. Third, more research is needed for the integration and coordination of resource management.

수투과도 향상을 위한 PES 정밀여과급 평막의 구조 평가

최은혜(Eunhye Choi),류승한(Seunghan Ryu),김성진(Sungjin Kim) 대한환경공학회 2022 대한환경공학회 학술발표논문집 Vol.2022 No.11

방류 최소화를 위한 농축수 순환형 역삼투막 공정 운용

최은혜(Eunhye Choi),이상헌(Sanghun Lee),김성진(Sungjin Kim),류승한(Seunghan Ryu),오한나(Hannah Oh),최민규(Minkyu Choi),한주은(Jooeun Han),정진호(Jinho Jung) 대한환경공학회 2021 대한환경공학회 학술발표논문집 Vol.2021 No.11

Three-Dimensional Reduced-Symmetry of Colloidal Plasmonic Nanoparticles

Jeong, Eunhye,Kim, Kihoon,Choi, Inhee,Jeong, Sunil,Park, Younggeun,Lee, Hyunjoo,Kim, Soo Hong,Lee, Luke P.,Choi, Yeonho,Kang, Taewook American Chemical Society 2012 NANO LETTERS Vol.12 No.5

<P>Owing to their novel optical properties, three-dimensional plasmonic nanostructures with reduced symmetry such as a nanocrescent and a nanocup have attracted considerable current interest in biophotonic imaging and sensing. However, their practical applications have been still limited since the colloidal synthesis of such structures that allows, in principle, for in vivo application and large-scale production has not been explored yet. To date, these structures have been fabricated only on two-dimensional substrates using micro/nanofabrication techniques. Here we demonstrate an innovative way of breaking symmetry of colloidal plasmonic nanoparticles. Our strategy exploits the direct overgrowth of Au on a hybrid colloidal dimer consisting of Au and polystyrene (PS) nanoparticles without the self-nucleation of Au in an aqueous solution. Upon the overgrowth reaction, the steric crowding of PS leads to morphological evolution of the Au part in the dimer ranging from half-shell, nanocrescent to nanoshell associated with the appearance of the second plasmon absorption band in near IR. Surface-enhanced Raman scattering signal is obtained directly from the symmetry-broken nanoparticles solution as an example showing the viability of the present approach. We believe our concept represents an important step toward a wide range of biophotonic applications for optical nanoplasmonics such as targeting, sensing/imaging, gene delivery, and optical gene regulations.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/nalefd/2012/nalefd.2012.12.issue-5/nl300435j/production/images/medium/nl-2012-00435j_0006.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/nl300435j'>ACS Electronic Supporting Info</A></P>

무의 α-Amylase 활성 및 가공 안정성

조은혜(Eunhye Cho),최아름(A-Reum Choi),최선주(Sun Ju Choi),김소영(Soyoung Kim),이건순(Gun Soon Lee),이수성(Soo Seoug Lee),채희정(Hee Jeong Chae) 한국식품영양과학회 2009 한국식품영양과학회지 Vol.38 No.6

소화 촉진 작용이 있다고 알려진 무의 건조방법, 온도, pH 등의 가공조건이 α-amylase 활성에 미치는 영향을 검토하였다. 동결건조 한 무 뿌리와 무 줄기의 α-amylase의 활성을 비교한 결과 무 뿌리가 무 줄기의 3.1배 높은 수준의 활성을 보였다. 무를 pH와 온도를 달리하여 안정성을 측정한 결과, pH 범위가 4~7이며 온도가 25~40℃일 때 α-amylase 활성이 높았다. 무의 α-amylase는 산성이나 중성 조건에서 처리하고 60℃ 이하의 온도로 가열처리하여야 활성을 유지하였다. 무를 깍두기와 단무지의 형태로 가공하였을 때 무의 α-amylase 잔류활성은 각각 15.39%와 19.193%이었고 초절임무에서는 α-amylase의 활성이 대부분 소실됨을 보였다. 결과적으로, 무의 소화효소인 α-amylase 활성은 열과 pH 등의 가공조건에 의해 크게 영향을 받는 것을 알 수 있었으며 60℃ 이하의 온도에서 열처리하는 것과 중성이나 약산성에서 α-amylase 효소의 활성도가 유지되는 것으로 판단된다. The effects of processing conditions on the α-amylase activity of radish were investigated at various temperatures, pHs and drying conditions. The α-amylase activity of radish root was 3.1-fold higher than that of radish trunk. As the freeze-dried radish was incubated at various temperatures and pHs, α-amylase activity was stably maintained at pH range of 4~7 and temperature of 25~40℃. When radish was processed to kakdugi and danmooji, the residual α-amylase activity was 45.39% and 19.19%, respectively. Consequently, the α-amylase activity was greatly affected by processing conditions such as heat treatment and pH. It is suggested that radish should be processed at below 60℃ and at neutral to acidic pH condition.