Feral cats are widely considered to be leading the potential impacts on public health. This study aimed to provide estimates of vital data for feral cats relating Trap-Neuter-Return (TNR) to establish strategies effectively to manage feral cats in Pyeongtaek. Thus, this study focused on estimating feral cat population in Pyeongtaek and conducted a comparative analysis of the data for feral cats in Seoul (2013). The number of feral cats was estimated from 23,069 to 26,655 in Pyeongtaek, 2019. In relation to human population, when comparing the number of feral cats of Pyeongtaek and Seoul, it ranged from 4.57% to 5.28%, and from 1.97% to 2.55% respectively. This showed that Pyeongtaek was higher than Seoul. Fewer kittens were found in high-density areas, which the TNR project is believed to be generally effective in controlling the number of feral cats. In conclusion, in urban and rural complexes such as Pyeongtaek City, the number of feral cats compared to the population was higher than that of Seoul City, and the TNR program is believed to be somewhat effective in controlling the number of feral cats. When implementing TNR, it is necessary periodically to investigate the population and reflect them in policymaking.

We aimed to predict the Italian ryegrass (IRG) productivity change of introduced and domestic varieties based on climate factors and identify suitable areas for IRG cultivation using the RCP 8.5 scenario. The minimum mean air temperature in January showed the highest correlation with productivity. The ratio of possible and low productivity areas was high in Gangwondo, and the ratio of suitable and best suitable areas was relatively high in the central and southern regions in the past 30 years. The change in the IRG cultivation area was found to be 26.9% in the best suitable area between 1981–2010 but increased significantly to 88.9% between 2090s. In the IRG suitability comparison classes between domestic and introduced cultivars, the ratio of suitable and best suitable areas was relatively high in the domestic varieties during the past 30 years. However, there is almost no difference between the IRG domestic and introduced varieties in the IRG suitability classes after the 2050s. These results can predict changes in the IRG suitability classes between domestic and introduced cultivars according to the climate change scenario, but there are limitations in accurately predicting the productivity of IRG because the results may vary depending on other environmental factors.

Polyphenol profiles, physicochemical properties, antioxidant activities, and inhibitory effect of adipocyte differentiation of Houttuynia cordata fermented with Lactobacillus brevis B84 were evaluated. Six polyphenols were characterized for this plant by using high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS), and the results were compared with total phenolic content by a spectrophotometric method. The total amount of the identified polyphenols was lower than that determined by the spectrophotometric method. However, the fermentation process influenced polyphenol composition such as content of vanillic acid and caffeic acid. The phytochemical profiles were evaluated by high-performance liquid chromatography with UV and electrospray ionization mass spectrometry detection (HPLC-DAD-ESI-MSn). Total sugar and reducing sugar contents decreased after fermentation. Antioxidant activities such as DPPH, ABTS, and superoxide anion radical scavenging and reducing power were evaluated to compare the beneficial effect after fermentation. Fermented H. cordata increased the lipolytic effect in 3T3-L1 adipocytes. Overall, the results indicate that the fermentation of H. cordata with L. brevis B84 produces changes of phenolic compounds, antioxidant activity, and lipolytic effect.

Ochratoxin A, which is frequently detected in cereals and infant diets worldwidely, is a mycotoxin to damage mainly the kidney and liver. Because ochratoxin A is highly thermostable compound. it is necessary to study ways of reducing level of ochratoxin A by controling processing steps. However, food processes, including extrusion, expansion, roasting, and steam cooking, which are used in order to mitigate the contents of ochratoxin A, are known to produce polycyclic aromatic hydrocarbons, which are generated from radicals decomposed by pyrolysis. Therefore, this study analyzed the levels of 4 polycyclic aromatic hydrocarbons, benz (a) anthracene, chrysene, benzo (b) fluoranthene and benzo (a) pyrene in rice-based products made in high pressure and heating process. Rice samples were finely ground, and homogenized samples were alkaline treatement with 1 M KOH/EtOH and extracted with liquid-liquid extraction method using n-hexane. The extracted solution was pretreated with a silica cartridge. The purified solution was dried with nitrogen gas and dissolved in 1 mL of dichloromethane and injected into GC/MSD. We had overall recoveries for 4 polycyclic aromatic hydrocarbons spiked into rice samples ranging from 92.8 to 110.2%. The limit of quantitations of benz (a) anthracene, chrysene, benzo (b) fluoranthene and benzo (a) pyrene in rice-based product were 0.19 ng/g, 0.38 ng/g, 0.51 ng/g, and 0.31 ng/g, respectively. However, these 4 polycyclic aromatic hydrocarbons in all processed rice samples were not detected.

This study aimed to reveal the designer’s creative process in the development of clothing designs. The researcher has taken roles both as a design practitioner and an observer. The full process of design development was concurrently documented while working to solve a specific problem. This included noting down the concept, keywords, and detailed scratch ideas, as well as refining the design by collecting sketches and taking photos. Integrated data from the captured design process were analyzed based on Lamb and Kallal’s apparel design framework, which included problem identification, construction of preliminary ideas, design refinement, prototype development, and evaluation. The functional, expressive, and aesthetic (FEA) criteria of the entire process were thus assessed. Additionally, five professional apparel reviewers evaluated the design project based on FEA criteria. The results showed the processes for identifying targets and intentions, extracting the main elements from sources, developing the major visual concepts, and making final adjustments. Ultimately, this study revealed how a designer manages each stage of the creative design process. Sharing such detailed observations of the design process can help refine the knowledge involved in each stage of the creative process, and provide guidance for instructors in design education.

RDA(Rural Development Administration of Agriculture) and YIRI(Yecheon-gun Industrial Insect Research Institute) was development of 3 strains crossbred honey bee(Apis mellifera) for increasing honey production(HP). The overall goal of this research is to improve the honey production of queen honey bees. This will enhance the economic value of the nation’s honey bees for honey production, and hazard resistance. Our main objective of this research is to test of honey bees(A. mellifera) that have increased as well as being good honey producers and resistance of disease in jeon-nam province. The new honey bee(A. mellifera) stock were identified ability of increasing honey production by comparing with rearing practice colony. The new honey bee(A. mellifera) stock can produce more than 30~50% honey(HP; 12.31 kg) comparing with rearing practice colonies(control 1; 8.17 kg, and control 2; 9.53 kg). Furthermore, we are calculated the number of worker bee per colony. Population of worker bee in new honey bee(A. mellifera) stock are 2,849 (colony 1), 8,860 (colony 2) and 10,451 (colony 3), it was more then 1.2~3.7 fold comparing with controls.

감귤류 과피는 플라보노이드의 중요 급원 중의 하나로 아시아에서 민간 의약품으로서 오래전부터 사용되어 왔다. 본 연구에서는 진귤(Citrus sunki Hort. ex Tanaka) 과피에서 HPLC-MS/MS를 이용하여 9종의 플라보노이드 성분을 동정하였으며, hydroxypentamethoxyflavone과 dihydroxytetramethoxyflavone은 진귤에서 처음으로 확인되었다. 총 플라보노이드의 항산화 활성은 25~500 mg/L 의 농도범위에서 DPPH·, ABTS·+, NO· 소거능 및 환원력에 의해 측정되었으며, 시료의 첨가량이 많아짐에 따라 항산화 활성은 유의적으로 증가하였다.

This study investigated how the experience of victimization caused by inmates' violence might affect correctional officers' job-satisfaction and stress-related experience, burnout. Furthermore, it was also assessed if physical violence by inmates might result in officers' post-traumatic stress disorder. The results presented that officers responsible for security of prison cells reported serious degree of maladaptation in burnout experience, job-satisfaction, and post-traumatic stress disorder. Principal factor analysis of items to measure officers' victimization by inmates saturated a three-factor model to have the best fit. Three factors were psychological withdrawal, victimization by physical violence, and small disputes between inmates and officers. Additionally, officers were classified based on the experience of being victimized by inmates' physical abuse. The indices of chronic burnout and job-satisfaction were turned out to be much more maladjusted among officers abused by inmates physically. These results imply that victimization by inmates' physical violence produced significant degree of psychological symptoms such as post-traumatic stress disorder and chronic burnout experience. This relationship confirmed that there might be a causal effect of being physically abused by inmates on correctional officers' mental health problem such as post-traumatic stress disorder.

본 연구는 지방분해 및 식욕억제 인자로 알려진 암독소 호르몬-L의 체지방 분해작용에 미치는 각국 인삼의 petroleum ether(PE) 추출불의 영향을 비교·관찰하고자 시도하였다. PE에 의해 추출되어진 지질성분의 수율은 고려홍삼, 중국홍삼 및 미국백삼이 각 0.64, 0.47 및 0.58%로 고려홍삼이 가장 높았다. 시험관내에서 PE 추출물의 체지방 분해작용 억제율은 2㎎/㎖ 반응농도에서 고려홍삼, 중국홍삼 및 미국백삼이 각 55.1, 50.0 및 44.9% 였고, 체지방 분해작용 총 억제활성은 각 18, 12 및 13 unit로 역시 고려홍삼이 모두 가장 높았다

본 실험은 0일, 15일, 30일, 45일 냉동 저장 기간에 따라 닭의 가슴살과 다리 살로 패스트 푸드와 가정에서 많이 이용하고 있는 조리법중 튀김(frying), 전자레인지(microwaving)를 이용, 조리 한 것과 조리후 4일 간 냉장 저장후 재가열한 것을 실험재료로 하였다. 실험하는 동안 지질의 자동 산화를 방지하기 위해 항산화제인 BHT를 첨가했을 때와 첨가하지 않았을 때, malonaldehyde의 농도와 TBA가 그리고 fluorescence의 생성 정도를 측정하여, 냉동 저장과 조리법, 재가열 등이 닭고기의 지질 산화에 미치는 영향에 관한 연구를 한 결과는 다음과 같다. ◁표 삽입▷(원문을 참조 하세요) 지방 함량은 다리살이 가슴살보다 높게 나타났으며, 조리법으로는 튀김조리가 전자레인지 조리보다 높게 나타났다가 저장 0일에서 부터 30일까지는 지방 함량이 증가하다가 45일 저장시는 감소하는 경향을 보였으며, 30일 저장후 재 가열한 시료의 지방 함량이 유의적으로 높았다. BHT무첨가군과 BHT 첨가군 비교시 지방 함량에는 유의적인 차이가 나타나지 않았다. Malonaldehyde의 농도는 전체적으로 증가하는 경향을 보였으며, 부위별로 살펴보면 가슴살이 다리 살보다 다소 높은 함량을 나타내긴 했지만 유의적인 차이는 보이지 않았다. 또, 튀김 조리가 전자레인지 조리보다 높은 malonaldehyde량을 보였으며, 재가열시는 유의적으로 높은 수치의 malonaldehyde의 함량을 나타내었다. BHT무첨가군의 malonaldehyde 농축량이 BHT 첨가군의 malonaldehyde량 보다 약 40%이상 증가함을 보였다. TBA가는 저장기간 동안 전체적으로 증가하였으며, 다리살이 가슴살보다 다소 높은 수치를 보였다. 조리법별로 살펴보면 튀김 조리시 TBA가가 전자레인지조리시보다 높게 나타났다. BHT첨가군, 무첨가군 모두 재가열시 높은 TBA가를 보였다 2차지질산화물인 형광물질은 저장기간에 따라 점진적으로 증가세를 보였으며, 가슴살의 수치가 다리살보다 유의적으로 높게 나타났다. 특히 재가열시에는 재가열 전보다 배 이상의 급격한 증가세를 보였다. ◁표 삽입▷(원문을 참조 하세요) 이상의 결과로 보아 냉동 저장 동안 지질의 자동 산화는 계속 진행되고 있고, 특히 반복된 열처리와, 불포화 지방산 함량이 많은 부위가 유의적인 산화를 보였다. 항산화제인 BHT 무첨가군이 BHT 첨가군보다 높은 산화가 일어나는 것을 보았을 때 식품내에서의 항산화작용에 관한 연구가 계속적으로 필요하다고 본다.

인삼의 ehtanol 추출물과 영지 열수추출물 및 영지 crude polysaccharide가 유산균 생육에 미치는 효과를 L. casei IAM 1643과 S. thermophilus KCTC 2185를 대상으로 하여 조사하였다. 인삼추출물에는 탄수화물 60.7%, 단백질 27.5%, 영지추출물에는 단백질 46.4%, 탄수화물 35.9%가 함유되어 탄수화물과 단백질이 일반성분의 대부분을 나타내었으며, 영지 crude polysaccharide의 총당함량과 총단백질함량은 각각 47.2%와 15.2%이었다. 인삼 추출물에는 arginine과 tryptophan의 2종의 아미노산이 함유된 것으로, 영지추출물에는 이들 외에도 alanine, lysine, serine 등 모두 11종의 아미노산이 함유된 것으로 확인되었다. 인삼추출물과 영지추출물 및 영지 crude polysaccharide를 0.1%, 0.2%, 0.4%씩 TG배지에 첨가하여 유산균을 배양하였을 때 이들을 첨가하지 않은 대조구에 비하여 모두 뚜렷한 생육증진 효과를 나타내었다. 특히 그 효과는 인삼추출물은 L. casei의 경우에, 영지추출물은 S. thermophilus의 경우에 더욱 뚜렷하게 나타났으며 첨가량이 증가할수록 그 효과도 증가하였다. 인삼 및 영지추출물에서 분석된 유리 아미노산중 arginine, lysine 등은 L. casei의 경우에 생육증진 효과를 나타내었으며, lysine, serine, arginine, glutamic acid 등은 S. thermophilus의 경우에 효과를 나타내었다.

부산지역에 거주하거나 직장을 가진 국민학교 4학년 이상의 남녀 459명을 대상으로 외식산업의 발전의 계기가 된 프랜차이즈 시스템 체인점의 이용실태와 가맹점과 일반음식점에 대한 소비자의 선호도 및 의식을 설문지를 통하여 조사한 결과 다음과 같은 결과를 얻었다. 체인점의 종류별 이용실태는 치킨점, 햄버거점, 핏자점순으로 이용한 경험이 많았다. 가맹점과 일반음식점에 대한 선호도는 남자가 일반음식점, 여자가 가맹점을 더 좋아하는 것으로 나타났으나 성별간 차이는 인정할 수 없었다(N. S.). 연령별로는 학생층과 청년층은 가맹점을 좋아하는데 반하여 장년층은 일반음식점을 더 좋아하는 것으로 나타났다(p<0.05). 가맹점을 좋아하는 이유로서는 위생적으로 맛과 품질을 믿을 수 있기 때문이며, 싫어하는 이유로서는 메뉴가 다양하지 않고 가격이 비싸기 때문인 것으로 나타났다. 일반음식점을 좋아하는 이유로는 식당마다 고유한 맛이 있고 마음이 편하기 때문이며, 싫어하는 이유로서는 비위생적이고 불친절하기 때문인 것으로 나타났다.

D-xylan은 최근 대체 에너지원인 알콜 생산의 기질로서 주목받고 있을 뿐만 아니라 butanol과 butandiol과 같은 유기 용매와 xylitol과 같은 감미료, xylooligosaccharide와 같은 bifidogenic factor 등의 원료로 사용된다. 본 논문에서는 발효된 톱밥으로부터 xylanase 강력 생산성 균주를 분리하고 제 특성을 확인하여 Bacillus sp. GS로 동정하였다. Xylanase 생산성을 높이기 위해 효소 생산 배지 성분과 배양 조건을 최적화 하였는데, 각각 xylan 1.25%, yeast extract 0.1%, NaNO_3 1.2%, K_2HPO_4 0.1%, MgSO_4 0.02%, mineral salt 0.005%와 pH 6.5, 배양 온도 37℃였다.

This study was carried out to investigate the effect of the emulsion stability according to the quantity of emusifiers and the pressure of homogenizer in coffee whitener preparation. The results of this study are as follow : 1. To obtain a standard emulsifier, the ratio of mono and diglycerides (Atoms 150), sorbitan monostearate (Span 60) and polyoxylene(20) sorbitan monostearate (Tween 60) was 60 : 20 : 20 and the optimum quantity was about 0.9% for stable emulsion. 2. Characteristics as coffee whitner were markedly improved when the pressure of homogenizer was 200∼250㎏/㎠ and homogenizing times are over 4. 3. The good whitening capacity was showed when fat glouble`s average diameter was under 0.5㎛.