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튀김횟수에 따른 튀김식품(돈까스, 감자튀김) 및 식용유지(대두유, 카놀라유, 팜유, 돈지)의 변화
이정훈(Jung-Hoon Lee),박정민(Jung-Min Park),김하정(Ha-Jung Kim),고종호(Jong-Ho Koh),김진만(Jin-Man Kim) 한국식품과학회 2017 한국식품과학회지 Vol.49 No.1
본 연구는 축산물에 사용되는 식용유지의 기준설정을 위하여 모니터링을 실시하였다. 축산물에 사용되는 유지(대두유, 카놀라유, 팜유, 돈지)를 선정하여 식품공전에 고시되고 있는 규격과 비교하여보았다. 상관관계를 구축하여 축산물에 사용되는 식용유지와 일반식품에 사용되는 식용유지의 신선도여부를 파악하였으며, 축산식품과 일반식품의 사용유지 실험값 비교분석을 통한 식품공전에 따른 유지기준(산가 2.5 mg KOH/g 이하, 과산화물가 50meq/kg 이하)을 축산물에도 적용 가능한 지의 여부를 검토하였다. 또한 튀김유지 뿐만 아니라, 유지별 튀김횟수에 따른 튀김식품에 대한 산가, 과산화물가 값을 측정하여 축산물(돈까스)이 일반식품(냉동감자)보다 적은 튀김횟수에서 일반식품의 산가 기준치(5.0 mg KOH/g), 과산화물가 기준치(60 meq/kg)에 도달하는 것을 알 수 있었다. 따라서 본 연구를 통하여 축산물에 사용되는 유지의 기준 규격마련을 위한 기초자료로 사용될 수 있다. The purpose of this study was to investigate the effect of frying number on oxidative changes in edible oils and fried foods. According to the frying number, the extracted edible oils from pork cutlet and fried potato were used as experimental samples. The Ministry of Food and Drug Safety (MFDS) regulations permit edible oils to have <2.5 mg KOH/g of acid value and <50 meq/kg of peroxide value in food. However, there are no regulations for edible oils used to fry livestock. Animal foods contain protein and fat, and should be held to a different standard than ordinary food. Therefore, we present basic information and suggest the establishment of regulations for livestock frying oil and fried livestock.
Long-term outcomes of nail bed reconstruction
Koh, Sung Hoon,You, Youngkee,Kim, Yong Woo,Kim, Jin Soo,Lee, Dong Chul,Roh, Si Young,Lee, Kyung Jin,Hong, Min Ki Korean Society of Plastic and Reconstructive Surge 2019 Archives of Plastic Surgery Vol.46 No.6
Background There are various reconstructive options for nail bed defects. However, it is challenging not to leave a deformity. In this study, we investigated differences in outcomes depending on the reconstruction method, attempted to determine which method was better, and analyzed other factors that may affect outcomes. Methods The long-term outcomes of nail bed reconstruction were reviewed retrospectively. We performed three types of reconstruction depending on the defect type: composite grafts of severed segments, nail bed grafts from the big toe, and two-stage surgery (flap coverage first, followed by a nail bed graft). Subsequent nail growth was evaluated during follow-up, and each outcome was graded based on Zook's criteria. The reconstruction methods were statistically analyzed. Other factors that could contribute to the outcomes, including age, the timing of surgery, germinal matrix involvement, defect size, and the presence of bone injuries, were also compared. Results Twenty-one patients (22 digits) who underwent nail bed reconstruction were evaluated. The type of reconstruction method did not show a significant relationship with the outcomes. However, patients who sustained injuries in the germinal matrix and patients with a defect larger than half the size of the nail bed had significantly worse outcomes than the comparison groups. Conclusions The results suggest that no operative method was superior to another in terms of the outcomes of nail bed reconstruction. Nevertheless, involvement of the germinal matrix and defect size affected the outcomes.
Integration of Stress-Strain Rate Equations of CASM
Koh, Tae-Hoon The Korean Society for Railway 2010 International Journal of Railway Vol.3 No.4
In transportation geotechnical engineering, stress-strain behavior of earth structures has been analyzed by numerical simulations with the implemented plasticity constitutive model. It is a fact that many advanced plasticity constitutive models on predicting the mechanical behavior of soils have been developed as well as experimental research works for geotechnical applications in the past decades. In this study, recently developed, a unified constitutive model for both clay and sand, which is referred to as CASM (clay and sand model), was compared with a classical constitutive model, Cam-Clay model. Moreover, integration methods of stress-strain rate equations using CASM were presented for simulation of undrained and drained triaxial compression tests. As a conclusion, it was observed that semi-implicit integration method has more improved accuracy of capturing strain rate response to applied stress than explicit integration by the multiple correction and iteration.
Koh, Hyun Seok,Sohn, San Ho,Lee, Young Sun,Koh, Young Jin,Song, Jang Hoon,Jung, Jae Sung The Korean Society of Plant Pathology 2013 Plant Pathology Journal Vol.29 No.4
The fungus Venturia nashicola is the causal agent of scab on Asian pears. For the rapid and reliable identification as well as sensitive detection of V. nashicola, a PCR-based technique was developed. DNA fingerprints of three closely related species, V. nashicola, V. pirina, and V. inaequalis, were obtained by random amplified polymorphic DNA (RAPD) analysis. Two RAPD markers specific to V. nashicola were identified by PCR, after which two pairs of sequence characterized amplified region (SCAR) primers were designed from the nucleotide sequences of the markers. The SCAR primer pairs, designated as D12F/D12R and E11F/E11R, amplified 535-bp and 525-bp DNA fragments, respectively, only from genomic DNA of V. nashicola. The specificity of the primer sets was tested on strains representing three species of Venturia and 20 fungal plant pathogens. The nested PCR primer pair specific to V. nashicola was developed based on the sequence of the species-specific 525-bp DNA fragment amplified by primer set E11F/E11R. The internal primer pair Na11F/Na11R amplified a 235-bp fragment from V. nashicola, but not from any other fungal species tested. The nested PCR assay was sensitive enough to detect the specific fragment in 50 fg of V. nashicola DNA.
BRAF somatic mutation contributes to intrinsic epileptogenicity in pediatric brain tumors
Koh, Hyun Yong,Kim, Se Hoon,Jang, Jaeson,Kim, Hyungguk,Han, Sungwook,Lim, Jae Seok,Son, Geurim,Choi, Junjeong,Park, Byung Ouk,Do Heo, Won,Han, Jinju,Lee, Hyunjoo Jenny,Lee, Daeyoup,Kang, Hoon-Chul,Sho Nature Publishing Group 2018 Nature medicine Vol. No.
Park, Hoon Suk,Kim, Chan Joon,Yi, Jeong-Eun,Hwang, Byung-Hee,Kim, Tae-Hoon,Koh, Yoon Seok,Park, Hun-Jun,Her, Sung-Ho,Jang, Sung Won,Park, Chul-Soo,Lee, Jong Min,Kim, Hee Yeol,Jeon, Doo Soo,Kim, Pum-Jo S. Karger AG 2015 Cardiorenal medicine Vol.5 No.1
<P>Abstract</P><P><B><I>Background:</I></B> Considering that contrast medium is excreted through the whole kidney in a similar manner to drug excretion, the use of raw estimated glomerular filtration rate (eGFR) rather than body surface area (BSA)-normalized eGFR is thought to be more appropriate for evaluating the risk of contrast-induced acute kidney injury (CI-AKI). <B><I>Methods:</I></B> This study included 2,189 myocardial infarction patients treated with percutaneous coronary intervention. Logistic regression analysis was performed to identify the independent risk factors. We used receiver-operating characteristic (ROC) curves to compare the ratios of contrast volume (CV) to eGFR with and without BSA normalization in predicting CI-AKI. <B><I>Results:</I></B> The area under the curve (AUC) of the ROC curve for the model including all the significant variables such as diabetes mellitus, left ventricular ejection fraction, preprocedural glucose, and the CV/raw modification of diet in renal disease (MDRD) eGFR ratio was 0.768 [95% confidence interval (CI), 0.720-0.816; p < 0.001]. When the CV/raw MDRD eGFR ratio was used as a single risk value, the AUC of the ROC curve was 0.650 (95% CI, 0.590-0.711; p < 0.001). When the CV/MDRD eGFR ratio with BSA normalization ratio was used, the AUC of the ROC curve further decreased to 0.635 (95% CI, 0.574-0.696; p < 0.001). The difference between the two AUCs was significant (p = 0.002). <B><I>Conclusions:</I></B> Raw eGFR is a better predictor for CI-AKI than BSA-normalized eGFR.</P><P>© 2015 S. Karger AG, Basel</P>