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Youn-Kyung Ham,Sam-Woong Kim,Dong-Heon Song,Hyun-Wook Kim,Il-Suk Kim 한국축산식품학회 2021 한국축산식품학회지 Vol.41 No.3
This study was conducted to compare the nutritional composition of whitespotted flower chafer (Protaetia brevitarsis) larvae produced from five commercial insect farms in Korea. The feeding sources of larvae were different as follows: Farm A, fermented oak sawdust; Farm B, fermented oak and scrub sawdust; Farm C, commercial feed; Farm D, private fermented feed; and Farm E, byproduct from mushroom compost. Drying yield significantly varied by insect farm, ranging from 14.12% to 27.28%. However, there was only small difference (5.14–7.38 g/100 g) in moisture content of dried larvae powder (p<0.001). The larvae produced from Farm A, B, and D presented higher protein content and lower lipid content compared to those from Farm C and E (p<0.05). No significant differences in total and essential amino acid contents were found, regardless of the insect farms. Phosphoserine, taurine, and gamma-aminobutyric acid, well-known physiological useful compounds, were detected in form of free amino acids. The major fatty acids in the P. brevitarsis larvae were oleic acid, palmitic acid, palmitoleic acid, and linoleic acid. The larvae from Farm A, B, and E exhibited higher oleic acid content than those from Farm B and C (p<0.05). Moreover, the larvae from Farm A presented the lowest saturated fatty acid (SFA)/unsaturated fatty acid (UFA) ratio. Although the underlying mechanisms of the nutritional composition differences are not yet clearly understood, this study suggests that the Farm A production system, using only oak feed, could be potentially beneficial in increasing the protein content and decreasing SFA/UFA ratio in P. brevitarsis larvae.
Youn-Kyung Ham,Dong-Heon Song,Sin-Woo Noh,Tae-Wan Gu,Jae-Hyeok Lee,Tae-Kyung Kim,Yun-Sang Choi,Hyun-Wook Kim 한국축산식품학회 2020 한국축산식품학회지 Vol.40 No.6
This study investigated the impacts of gelatin hydrolysate addition on the technological properties and lipid oxidation stability of cooked sausage. Gelatin hydrolysate was prepared from pork and duck skin gelatin, through stepwise hydrolysis using collagenase and pepsin. The cooked sausages were formulated without gelatin (control) or with 1% pork skin gelatin, 1% duck skin gelatin, 1% pork skin gelatin hydrolysate, and 1% duck skin gelatin hydrolysate. The pH, color characteristics, protein solubility, cooking loss, and textural properties of cooked sausages were evaluated, and the 2-thiobarbituric acid reactive substances (TBARS) value was measured weekly to determine lipid oxidation stability during 4 wk of refrigerated storage. Enzymatic hydrolysis of gelatin decreased protein content and CIE L* but increased redness and yellowness (p<0.05). When 1% gelatin or gelatin hydrolysate was incorporated in cooked sausage, however, little to no impacts on pH value, moisture content, protein content, color characteristics, protein solubility, and cooking loss were found (p>0.05). The addition of 1% duck skin gelatin hydrolysate increased the cohesiveness and chewiness of cooked sausages. The inclusion of 1% duck skin gelatin accelerated lipid oxidation of cooked sausages during refrigerated storage (p<0.05), whereas duck skin gelatin hydrolysate caused a lower TBARS value in cooked sausage compared to duck skin gelatin. The results show comparable effects of gelatin and gelatin hydrolysate addition on the technological properties of cooked sausages; however, the oxidative stability of raw materials for gelatin extraction should be evaluated clearly in further studies.
Youn-kyung Ham,Ko-eun Hwang,Dong-heon Song,Yong-jae Kim,Dong-jin Shin,Kyung-il Kim,Hye-jin Lee,Na-rae Kim,Cheon-jei Kim 한국축산식품학회 2017 한국축산식품학회지 Vol.37 No.2
The objective of this study was to determine the physicochemical and sensory properties of cooked emulsion sausages containing different levels of lotus rhizome powder (0, 1, 2, and 3%, based on total weight). Lotus rhizome powder had no significant (p>0.05) impact on pH, moisture, protein, or ash content of sausage. However, fat content was slightly but significantly (p<0.05) decreased when the level of lotus rhizome powder was increased in the sausages. The addition of lotus rhizome powder to sausages at over 1% resulted in significantly (p<0.05) darker and less red color of cooked sausage compared to control. Increase in lotus rhizome level slightly improved the emulsion stability and apparent viscosity. Significant (p<0.05) reduction in cooking loss was observed when more than 1% of lotus rhizome powder was added to sausages. The textural properties of sausages were unaffected by the inclusion of lotus rhizome except for springiness and chewiness. On the manufacture day, control sausage had significantly (p<0.05) higher TBARS value than treatments. Regarding sensory characteristics, increased levels of lotus rhizome powder decreased (p<0.05) color and juiciness scores. However, cooked sausages exhibited similar overall acceptability regardless of the level of lotus rhizome powder added to sausages. Therefore, lotus rhizome powder, an antioxidant dietary fiber, could be used as an effective natural ingredient in meat products for the development of healthier and functional food.
Ligand‐activated interaction of PPARδ with c‐Myc governs the tumorigenicity of breast cancer
Ham, Sun Ah,Kim, Eunsu,Yoo, Taesik,Lee, Won Jin,Youn, Ju Ho,Choi, Mi‐,Jung,Han, Sung Gu,Lee, Chi‐,Ho,Paek, Kyung Shin,Hwang, Jung Seok,Seo, Han Geuk Alan R. Liss, Inc 2018 International journal of cancer Vol.143 No.11
<P>Peroxisome proliferator‐activated receptor (PPAR) δ is a promising therapeutic target in metabolic and inflammatory disorders. However, its role in oncogenesis is controversial, and its therapeutic potential remains to be determined. In our study, we show that ligand‐activated PPARδ forms a complex with the proto‐oncogene product c‐Myc. The interaction of PPARδ with c‐Myc affected the transcriptional activity of c‐Myc and the expression of its target genes. The PPARδ‐dependent regulation of c‐Myc activity was associated with decreased tumorigenicity in breast cancer cells. Administration of the PPARδ ligand GW501516 inhibited tumor growth in xenograft model mice bearing MDA‐MB‐231 cells stably expressing wild‐type PPARδ, but not those expressing dominant‐negative PPARδ, by interfering with c‐Myc function through protein–protein interaction. Our results indicating that PPARδ forms an antitumorigenic complex with c‐Myc in the presence of ligand suggest a potential role of PPARδ in breast cancer development.</P>
Kyung A Kang,Heon-Ju Kwon,Soo-Youn Ham,Hee Jin Park,Jun Ho Shin,Sung Ryol Lee,Mi Sung Kim 대한외과학회 2020 Annals of Surgical Treatment and Research(ASRT) Vol.99 No.4
Purpose: We evaluated the impact of preoperative magnetic resonance cholangiopancreatography (MRCP) on patient outcomes, and found which patients should be considered for MRCP before cholecystectomy. Methods: We performed retrospective analysis of 2,072 patients that underwent cholecystectomy for benign gallbladder disease from January 2014 to June 2017. Patients were grouped as CT only group (n = 737) and MRCP group (n = 1,335), including both CT and MRCP (n = 1,292) or MRCP only (n = 43). The main outcome measure was associated with complications after cholecystectomy, and the secondary outcomes were hospital stay, readmission, and events that could impact patient management due to addition of MRCP. Results: There were no statistical differences in occurrence of intraoperative or postoperative complications or readmission rate between the 2 groups. Hospital stay was about 0.6 days longer in the MRCP group. However, MRCP group was more susceptible to complications due to underlying patient demographics (older age, higher frequency of diabetes, and higher level of the inflammatory markers). MRCP diagnosed common bile duct (CBD) stones in 6.5% of patients (84/1,292) without CBD stones in CT, and bile duct anomalies were identified in 41 patients (3.2%). Elevated γ-GT was the only independent factor for additional detection of CBD stones (adjusted odds ratio [OR], 2.89; P = 0.029) and subsequent biliary procedures (adjusted OR, 3.34; P = 0.018) when additional MRCP was performed. Conclusion: MRCP is valuable for identification of bile duct variation and CBD stones. Preoperative MRCP can be considered, particularly in patients with elevated γ-GT, for proper preoperative management and avoidance of complications.
치매예방 문화예술 - ‘실버프랜드 말벗아리’ 프로그램 현장적용 및 효과성 연구
함수경 ( Ham Su-kyung ),김영연 ( Kim Young-youn ) 한국무용교육학회 2021 韓國舞踊敎育學會誌 Vol.32 No.1
Purpose of this study was to find out the effects of the developed dementia prevention program through the application of the program to the practical settings in order to provide fundamental data that can be useful for cultural welfare policy development near future. An integrated cultural arts program named Silver Friends Malbot(companion) Ari was developed as a community service project and applied to the field for the elderly people for dementia prevention. From the study, it was found that participants’response were positive and possibility in terms of the program as sustainable social cultural welfare program. Implications are as follows: First, the cultural arts healing for dementia prevention can present positive effects on dementia prevention with the utilization of programs based on artistic education, and its application presents the possibility that the practice of cultural welfare helping the democratization of cultures will ultimately be helpful to development into cultural democracy. Second, the on-site application of Silver Friends Malbot(companion) Ari, a cultural arts healing program for dementia prevention based on integrated arts has contributed to improving the quality of life by vitalizing social and artistic activities among the elderly people and expanding participants’ social networks. Also, it was found that the cooperative interchanges among the Dementia Reassurance Centers, cultural infrastructures, and the program development human resources worked as the important keys in the process of expeditious program facilitation. Therefore, this research presents the possibility of realizing the educational values of dementia prevention education as a cultural arts education.
Chemical and Physical Characteristics of Expanded Rice Husk Medium on Growth of Rice Seedling
Ko Jonghan,Ham Jin Kwan,Kim Yong Bok,Kim Kyung Hee,Lee Byun Woo,Lee Youn Su The Korean Society of Crop Science 2005 Korean journal of crop science Vol.50 No.2
Expanded rice husk (ERR) is different from commercial rice seedling media in chemical and physical properties such as pH, permeability, and water content. This study was conducted to test a possibility of improving rice seedling growth by improving the texture of ERR as a rice seedling medium. The seedling media used were a commercial seedling medium (CSM), rice husk, and ERR 1, 2, 3, and 4 with different expansion degrees. The pH of the ERHs ranged from 6.3 to 6.8. As the expansion rate increased, ERR particle sizes decreased, and water permeability and absorption rates improved. No significant differences in shoot dry weight and rate of maturity were found among the seedlings cultivated in the different ERH media. However, the mat formation of seedling roots became loose as the expansion rates were decreased. Further studies are necessary to determine the cause of poor root growth in ERH media.