• Environmental Analysis Health and Toxicology
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• 제6권1_2호
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• pp.59-70
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• 1991

This study was performed to investigate the effect of olive oil diet on the immune response in ICR male mice. Experimental diets of 4 groups were fed ad libitum to the ICR male mice for 27 days. The results of this study were summarized as followings: 1. 10% Olive oil diet group as compared with the control diet group significantly decreased liver weight rate but significantly increased hemagglutination titer (HA), Arthus reaction, delayed type reaction (DTH), rosette forming cell (RFC), and phagocyte activity. 2. 20% Olive oil hypersensitivity diet group as compared with the control diet group significantly increased body weight gain, liver weight rate, and HA but significantly decreased Arthus reaction, DTH, RFC, phagocyte activity, and peripheral circulating white blood cell (WBC). 3. 30% Olive oil diet group as compared with the control diet group significantly increased liver weight rate but significantly decreased body weight gain, Arthus reaction, plaque forming cell (PFC), DTH, RFC, phagocyte activity, and WBC. The results showed that the increase of olive oil doses significantly decreased humoral and cellular immune responses, phagocyte activity, and WBC.

• Journal of Nutrition and Health
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• 제26권5호
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• pp.578-585
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• 1993

This study was performed to investigate effects of low fat diet and saturated fat supplementation on the function of the immune system. Forty male BALB/c mice average-weighing 15g were divided into two dietary groups: 0.7% safflower oil group and 4.3% beef tallow & 0.7% safflower oil group. Results are as follows; 1) Food intake, body weight, organ weight, agglutination test, differential white cell count and histological examination of spleen were not different in two dietary groups during the experimental period. 2) Delayed-type hypersensitive test of the mice fed 4.3% beef tallow & 0.7% safflower oil was significantly higher than that of the mice fed 0.7% safflower oil ($\alpha$=0.05). 3) Plaque forming cell was significantly reduced at 10th week compared to 7th week in both groups($\alpha$=0.05). Although there was no significant difference between two groups. 0.7% safflower oil groups showed slightly higher plaque forming cell than 4.3% beef tallow & 0.7% safflower oil group.

• 한국산학기술학회:학술대회논문집
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• 한국산학기술학회 2008년도 춘계학술발표논문집
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• pp.309-312
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• 2008

본 연구개발에서는 실리콘 오일을 가소제로 사용하지 않고 파라핀 오일과 재생 오일을 사용하고, 부착 강화제를 사용하여 실리콘 실란트를 제조하였다. 기본적인 다목적 실리콘 실란트 Formulation에 가소제인 실리콘 오일을 파라핀계 오일로 교체하여 토출성을 높여 작업성을 증진시켰으며, 접착 증진제의 교체로 무기 피착제와 폴리머와의 접착에서 각종 플라스틱, 아크릴, 폴리카보네이트 등과의 접착이 되도록 하였다. 비실리콘 오일의 교체로 기본 물성과의 차이를 극복하는 것과 접착 증진제 선택과 비율 조정이 제품화의 주요 기술이었다.

• Journal of Nutrition and Health
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• 제54권5호
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• pp.435-447
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• 2021

Purpose: Body adiposity is negatively correlated with hepatic iron status, and Korean pine nut oil (PNO) has been reported to reduce adiposity. Therefore, we aimed to study the effects of PNO on adiposity, hepatic mineral status, and the expression of genes and proteins involved in iron absorption. Methods: Five-week-old male C57BL/6 mice were fed a control diet containing 10% kcal from PNO (PC) or soybean oil (SBO; SC), or a high-fat diet (HFD) containing 35% kcal from lard and 10% kcal from PNO (PHFD) or SBO (SHFD). Hepatic iron, copper, and zinc content; and expression of genes and proteins related to iron absorption were measured. Results: HFD-fed mice had a higher white fat mass (2-fold; p < 0.001), lower hepatic iron content (25% lower; p < 0.001), and lower hepatic Hamp (p = 0.028) and duodenal Dcytb mRNA levels (p = 0.037) compared to the control diet-fed mice. Hepatic iron status was negatively correlated with body weight (r = -0.607, p < 0.001) and white fat mass (r = -0.745, p < 0.001). Although the PHFD group gained less body weight (18% less; p < 0.05) and white fat mass (18% less; p < 0.05) than the SHFD group, the hepatic iron status impaired by the HFD feeding did not improve. The expression of hepatic and duodenal ferroportin protein was not affected by the fat amount or the oil type. PNO-fed mice had significantly lower Slc11a2 (p = 0.022) and Slc40a1 expression (p = 0.027) compared to SBO-fed mice. However, the PC group had a higher Heph expression than the SC group (p < 0.05). The hepatic copper and zinc content did not differ between the four diet groups, but hepatic copper content adjusted by body weight was significantly lower in the HFD-fed mice compared to the control diet-fed mice. Conclusion: HFD-induced obesity decreased hepatic iron storage by affecting the regulation of genes related to iron absorption; however, the 18% less white fat mass in the PHFD group was not enough to improve the iron status compared to the SHFD group. The hepatic copper and zinc status was not altered by the fat amount or the oil type.

• 한국연소학회:학술대회논문집
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• 한국연소학회 2014년도 제49회 KOSCO SYMPOSIUM 초록집
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• pp.255-257
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• 2014

The installation of light oil facilities or delayed cokers seems to be inevitable in the oil refinery industry due to the heavy crude oil reserves and the increased use of light fuels as petroleum products. Petroleum coke is a byproduct of oil refineries and it has higher fixed carbon content, higher calorific value, and lower ash content than coal. However, its sulfur content and heavy metal content are higher than coal. In spite of disadvantages, petroleum coke might be one of promising resources due to gasification processes. The gasification of petroleum coke can improve economic value of oil refinery industries by handling cheap, toxic wastes in an environment-friendly way. In this study, $CO_2$ gasification reaction kinetics of petroleum coke, various coals and mixing coal with petroleum coke have investigated and been compared by using TGA. The kinetics of $CO_2$ gasification has been performed with petroleum coke, 3 kinds of bituminous coal [BENGALLA, White Haven, TALDINSKY], and 3 kinds of sub-bituminous coal [KPU, LG, MSJ] at various temperature[$1100-1400^{\circ}C$].

• Asian-Australasian Journal of Animal Sciences
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• 제24권8호
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• pp.1136-1141
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• 2011

Effect of dietary essential oils on growth, feed utilization and meat yields of white leg shrimp L. vannamei was investigated. White shrimp fry weighing 0.62 g were kept in one of 12 tanks (75 head/500 L holding tank) in a closed recirculation system. Four experimental diets, a commercial diet (control), phytoncide oil (PO), oregano oil (OO) and fermented garlic liquid (GL) were fed for 16 weeks. The mean water quality values for the whole experimental period were $27.8{\pm}1^{\circ}C$, $7.6{\pm}0.3$, $15.5{\pm}0.3$ g/L and $6.1{\pm}0.3$ mg/L for water temperature, pH, salinity and dissolved oxygen, respectively. At the end of the trial, 10 shrimp per tank were randomly sampled and meat yields (%) were evaluated after peeling the shell and removing the head. After a 16 week feeding trial, final weight of shrimp ranged from 21.9 g to 23.6 g. Feed conversion was not significantly different among groups (p>0.05), which was the lowest (1.95) in the control and highest (2.30) in the PO. Specific growth rate was also not significantly different (p>0.05) and ranged from 3.18% to 3.25%. Average daily gain of 0.2 g was obtained in all treatments. Mortality varied from 35.1% for control to 44.9% for OO. Meat yields maintained constant at 52.1% for control to 53.0% for PO. The study suggested that natural essential oils could not exert any improvement in growth performance, mortality and meat yields of white leg shrimp.

• 한국문화재보존과학회:학술대회논문집
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• 한국문화재보존과학회 2004년도 제20회 발표논문집
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• pp.72-74
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• 2004

The color change of lead-containing pigments is one of the most serious diseases in watercolor, oil paintings and wall paintings. These pigments have a tendency to darken or brighten. It was proved that oxidation of lead containing pigments in the formation of brown-colored lead dioxide is a photochemical reaction under high humidity conditions. Therefore, we carried out some analogic experiments on the color change of three typical lead containing pigments ; $Pb_3O_4$, Pbo and $PbCo_3{\cdot}Pb(OH)_2$ at the conditions of illuminations under the high humidity ($2PbCo_3{\cdot}Pb(OH)_2$ R. H.). The reason for the chemical reactions are discussed and the results of these experiments are shown in some spectrograms, micrographs and X-ray micro-diffraction patterns. Important conclusions were drawn in our research. Due to the formation of brown $PbO_2$, red lead $(Pb_3O_4)$ and massicot (PbO) turned brown or dark when they were illuminated light under high humidity. We noticed that the brightening of red lead occurred d to admixture with chalk or lead white in egg yolk or linseed oil medium on exposure to light. Lead white used in oil paintings turned yellowish on dark.

• 한국지하수토양환경학회지:지하수토양환경
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• 제8권4호
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• pp.64-67
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• 2003

잠재오염원에서 누출된 유류의 기원을 확인하기 위해서 표준연료와 환경시료중의 유류 구성성분의 농도를 분석하였다. pristane/phytane의 비는 환경시료 중 같은 휘발성을 가지고 있기 때문에 실질적으로 변하지 않는다. 이것은 미생물분해와 풍화의 영향을 평가하고 유류의 오염원을 확인하는데 유용하였다. L과 S 주유소에서 백등유, 보일러등유, JP-8, 경유의 pristane/phytane 비를 측정하였다. L-백등유와 JP-8에서 pristane/phytane 비는 각각 3.10$\pm$0.03, 1.77$\pm$0.01였으며, 유류와 물을 분배시킨 후 물층에서 pristane/phytane 비는 백등유 2.97$\pm$0.02, JP-8 1.65$\pm$0.02였다. pristane/phytane 비는 백등유와 JP-8을 구분하는 유효하였으며, 또한 관측정에서 수집된 자유상유류와 지하수시료에서 유종을 확인하는데 유용하였다.

• 한국식품영양과학회지
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• 제41권12호
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• pp.1813-1822
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• 2012

본 연구에서는 기능성이 뛰어난 자맥가루와 올리브유를 첨가한 제빵개발을 위해 중심합성계획법에 따라 자맥가루와 올리브유의 양을 독립변수로 하여 빵을 제조한 후, 품질특성을 조사하고 반응표면분석법을 이용하여 최적배합비를 구하였다. 실험 결과 이화학적 특성과 물성 중 무게, 부피, 비용적, 명도, 황색도, 경도, 탄력성, 응집성, 검성, 씹힘성이 linear 모델이 채택되었으며, 적색도는 quadratic 모델이 채택되었다. 관능적 특성 중에서는 색, 외관, 조직감, 맛, 전체적 기호도가 linear 모델이 채택되었고, 향은 이차 회귀분석의 설명력이 부족한 것으로 나타났다. 이화학적 특성과 물성 중 자맥가루 첨가량이 증가할수록 무게, 황색도, 경도, 검성, 씹힘성이 증가하였고 부피, 비용적, 명도, 탄력성은 감소하였다. 올리브 첨가량이 증가하면 경도, 응집성, 검성, 씹힘성은 증가하고, 황색도, 탄력성은 감소하였다. 이화학적 특성과 물성 특성에 자맥가루 첨가량에 대한 영향이 올리브유 첨가량에 대한 영향보다 컸다. 관능특성 검사 결과, 자맥가루 첨가량이 증가할수록 향을 제외한 모든 기호도가 감소하였으며, 올리브유에 의한 영향은 거의 없었다. 관능특성 중 유의성이 있었던 항목의 최대값을 충족시키는 최적의 배합비율은 자맥가루 10.00%, 올리브유 1.45%로 이 경우에 기호도는 색 6.45, 외관 6.60, 조직감 6.13, 맛 5.96, 전체적 기호도 6.37로 산출되었다. 또한 다소 관능평가 점수가 낮아지더라도 자맥가루를 첨가량을 최대로 늘릴 수 있는 방안을 모색한 결과, 자맥가루가 15.85~22.10%에서는 올리브유 첨가량에 관계없이 5.0의 전체적 기호도를 보였고, 자맥가루가 14.62% 이하일 때 올리브유 첨가량에 관계없이 6.0 이상의 전체적 기호도를 보였다. 본 연구 결과는 자맥가루와 올리브유를 이용한 식빵을 비롯한 기능성식품의 개발에 있어 기초자료로 이용될 것으로 기대된다.

• 셀메드
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• 제8권3호
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• pp.14.1-14.6
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• 2018

Santalum album Linn. [Family: Santalaceae] is commonly known as white sandalwood, sandal safaid and safed chandan. It is one of the most valuable trees and second costliest wood in the world. Sandalwood and its oil is extensively used in the Unani and other traditional systems of medicine as it has blood purifier, anti-inflammatory, analgesic, exhilarant, cardiotonic, antiseptic, nervine tonic and expectorant properties. It is used in skin, cardiac, liver, gastrointestinal, respiratory, integument and urogenital disorders. These uses are supported and proven by many in vitro or in vivo studies. The proven pharmacological activities of S. album are antimicrobial, anti-oxidant, anti-inflammatory, antimutagenic and anti-fatigue. The research has proven that sandal oil or its constituents have anti-microbial activity. Sandalwood oil showed skin cancer preventive effect in mice and its constituent alpha santalol showed the anticancer property. The methanolic extract of wood was confirmed for antioxidant, free radical scavenging, analgesic and anti-inflammatory activities. ${\alpha}$ and ${\beta}$ santalols present in sandal oil showed sedative effects. Sandalwood tea had a significant effect on heart muscles of frog and showed increased myocardial contractility. Its oil showed significant changes in hepatic xenobiotic metabolizing enzymes. Sandalwood oil and its major constituents showed less acute oral and dermal toxicity in laboratory animals. Hence, the aforementioned studies justify the uses of sandalwood and its oil mentioned in the classical Unani literature. However, further clinical trials are suggested to confirm its efficacy and safety in humans.