• 한국가금학회지
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• 제51권2호
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• pp.39-45
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• 2024

본 연구를 통해 닭고기를 활용한 반려견 간식 제품에서 동애등에 유충 분말의 유용한 고단백, 저지방 기능성 식품소재로의 활용 가능성을 확인하였다. 조단백질의 함량은 동애등에 유충 분말을 더 많이 첨가할수록 증가하였으며, 조지방의 경우 대조구(control)에 비해 처리구에서 낮은 조지방 함량을 나타냈다. pH의 경우, 동애등에 유충 분말을 첨가한 모든 처리구가 대조구에 비해 높은 값을 나타내었다. 육색 측정 결과, 동애등에 유충 분말 첨가량이 증가할수록 명도는 감소하였고, 적색도는 증가하였다. 이는 동애등에 유충 분말이 지속 가능할 뿐만 아니라 단백질 공급원의 역할을 하는 새로운 식품 소재로써의 가능성을 고려할 때 중요한 의의를 가지며, 경제적 이점을 위해 닭고기 부산물을 활용했을 때 낮아지는 단백질 함량을 개선하는 데 효과적으로 이용될 수 있음을 보였다.

• Journal of Nutrition and Health
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• 제46권1호
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• pp.5-14
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• 2013

The anti-obesity effects of fermented black bean were tested with mice fed a high fat diet for seven weeks. Body weight gain and feed efficiency ratio (FER) in the high fat diet control (HC) group were markedly higher, compared with those of the normal control (NC) group, but were significantly lower in the 2% black bean powder supplemented high fat diet (BB) group and 2% black bean powder fermented by M. pilosus supplemented high fat diet (BBM) group, compared with those of the HC group. Food intake in the HC and BB groups was significantly lower than that of the NC and BBM groups. Water intake in the HC group was significantly lower than that of the NC group, but was higher in the BB and BBM groups, compared with that of the HC group. On the other hand, relative liver and kidney weight in the HC group was lower than that of the NC group, but was higher in the BB and BBM groups, compared with that of the HC group. In addition, whereas epididymal fat weight in the HC group was markedly higher than that of the NC group, it was significantly lower in the BB and BBM groups, compared with that of the HC group. Meanwhile, hepatic GSH in the HC group was significantly lower than that of the NC group, but was slightly higher in the BB and BBM groups, compared with that of the HC group. Although hepatic LPO in the HC group was dramatically higher than that of the NC group, it was significantly lower in the BB and BBM groups, compared with that of the HC group. In addition, serum TG, total cholesterol, and LDL-cholesterol in the HC group was significantly higher than that of the NC group, but was significantly lower in the BB and BBM groups, compared with that of the HC group. On the contrary, HDL-cholesterol in the HC group was significantly lower than that of the NC group, but was higher in the BB and BBM groups, compared with that of the HC group. In addition, activity of XOR D type in the HC group was lower than that of the NC group, but was slightly higher in the BB and BBM groups, compared with that of the NC group. Activities of ROS scavenging enzymes, such as SOD, GPX, and GST in the HC group were significantly lower than those of the NC group, but were significantly higher in the BB and BBM groups, compared with those of the HC group. In addition, serum ALT activity in the HC and BB groups was higher than that of the NC group, but was significantly lower in the BB and BBM groups, compared with that of the HC group. In histopathological findings, hepatic fat accumulation in the HC group was higher than that of the NC group, but was lower in the BBM group, compared with that of the HC and BB groups. In particular, antiobese, hypolipidemic, and antifatty liver effect of black bean powder fermented by M. pilosus was specifically higher than that of non-fermented steamed black bean. In conclusion, the constituents of black bean fermented by Monascus pilosus have been proven to not only inhibit obesity and hyperlipidemia but also decrease hepatic fat accumulation in high fat diet-induced obese mice.

• 보존과학회지
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• 제35권5호
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• pp.385-391
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• 2019

인도네시아 보로부두르 보존처리소에서 촬영한 보로부두르 사원 흑백 사진의 재질 특성을 조사하기 위해 과학적 분석을 수행하였다. 흑백 사진에서 시료를 채취하여 현미경 조사, 성분 및 재질 분석을 진행한 결과 흑백 사진은 지지체, 바리타층, 바인더층, 표면층 등 4개의 층으로 구성되어 있는 것을 확인하였다. 지지체는 마섬유로 구성된 종이, 바리타층은 분말상태의 황산바륨(BaSO₄), 바인더층은 할로겐화은이 함유된 유제, 표면보호층은 젤라틴을 사용하여 제작된 것으로 판단하였다. 사진은 구성 재질에 따라 특성 및 보존 환경이 다르므로 시대에 따른 다양한 흑백 사진 재질 특성에 대한 연구가 필요하다.

• 복식문화연구
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• 제17권1호
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• pp.76-89
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• 2009

Popular music unites people who have different genders, ages, locals, and values. Through the popular music, youth interchange their emotion and create their fashion. Fashion and music formed the twin pillars on which the first historically significant youth sub-culture was built. Glam rock and Punk rock which won popularity in the 1970s influenced the fashion of the times. The purpose of this study is to compare Glam and Punk make-up which appeared as a symbol of the rebel against an older generation. The methodology utilized in this study was the analysis of materials from the survey through the literature, internet sites, and visual references. The results of this study are as follows: In face make-up, Glam used a white base to appear cosmic; on the other hand, Punk used a white base to appear pale and horrid. In eye make-up, Glam used black, pink, and blue eye shadow, and accented the eye by using black eye lines. Punk used black eye shadow, and drew black circles or squares around eyes. In lip make-up, Glam used pink, purple, red, and black lip color and silver and pink lip gloss to glitter. Punk used red and black lip color to appear horrid. In body make-up, Glam used glitter powder to appear with a bright skin. Punk drew tattoos and horror patterns in their body. The common themes of Glam and Punk make-up were rebellion, androgyny, and the beauty of ugliness as well as a self-created persona.

• 한국표면공학회지
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• 제32권3호
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• pp.312-316
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• 1999

The interfacial structure of duplex treated AISI 4140 consisting of iron nitride and TiN layer was characterized by optical microscope, SEM and XRD. A black layer was formed from the decomposition of iron nitride during Ti ion bombardment. The black layer was characterized as an a-Fe phase transformed from the iron nitride by XRD. In order to identify the formation mechanism of the black layer, a thermal analysis of iron nitride undertaken by DSC method. As an iron nitride was mostly consisted of ${\gamma}$'-Fe$_4$N and $\varepsilon$-$Fe_3$N phase after plasma nitriding, in this study, a ${\gamma}$'$-Fe_4$N and $\varepsilon$-$Fe_3$N powders were separately prepared by the different processing conditions of gas nitriding of iron powder in the fluidized bed. From the DSC thermal analysis, the phase transformation of ${\gamma}$'$-Fe_4$N, $\varepsilon$-$Fe_3$N was followed the path of transformation; $ \Upsilon{'}-Fe_4$Nlongrightarrow${\gamma}$-Felongrightarrowa-Fe and of $\varepsilon$-$Fe_3$Nlongrightarrow$\varepsilon$-$Fe_{2.5}$ /N+${\gamma}$'$-Fe_4$Nlongrightarrow${\gamma}$'-Fe$_4$Nlongrightarrow${\gamma}$longrightarrowFelongrightarrowalongrightarrowFe, respectively. It explains the reason why the $\varepsilon$ $-Fe_3$N phase disappeared in the first time and then ${\gamma}$'-Fe$_4$N in the formation of the black layer in the duplex coating.

• 자원리싸이클링
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• 제19권5호
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• pp.44-49
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• 2010

태양전지산업으로부터 배출되는 Si waste로부터 탄소환원법을 사용하여 SiC 분말을 제조하였다. 태양광 산업의 실리콘 웨이퍼 가공 공정에서 다량의 실리콘 및 오일 포함된 폐액이 발생한다. 환경과 경제적인 측면에서 폐액으로부터 실리콘 성분을 재회수하는 기술의 개발은 매우 중요하다. 본 연구에서는 폐 실리콘를 milling하여 나노화한 후 카본 블랙과 혼합하고 진공분위기에서 $1,350^{\circ}C$로 열처리하여 100 nm크기의 균일한 입도를 갖는 SiC 분말을 제조하였다. 폐실리콘과 생성물의 물리적 특성을 SEM, XRD, 입도분석 그리고 원자 흡수 분광기를 사용하여 분석하였다.

• 한국세라믹학회지
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• 제25권3호
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• pp.261-267
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• 1988

완도납석과 carbon black 의 혼합물을 135$0^{\circ}C$에서 질소분위기를 사용하여 탄소환원질화법으로 $\beta$-Sialon 분물에 $\beta$-SiC를 제2상으로 넣어서 $Y_2O_3$와 $ZrO_2$를 각 소결조제로 사용하여 175$0^{\circ}C$에서 2시간 동안 상압소결하였다. 10wt %의 $Y_2O_3$를 소결조제로 사용하였을 때에 파괴인성은 3.8MN/m^{3/2}$, 3점꺽임 강도는 470MN/$m^2$ 그리고 경도는 13.7MN/$m^2$로서 좋은 값을 나타내었다. 이와 같은 파괴인성과 꺽임강도의 증가는 균열편향과 균열나눠짐에 의한 것으로 생각된다.

• Journal of Ginseng Research
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• 제41권4호
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• pp.615-619
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• 2017

Background: Black ginseng has a more potent biological activity than non-steamed ginseng. We investigated the effects of long-term intake of dietary black ginseng extract (BG) on antioxidant activity in aged mice. We also compared the effects of BG on cognitive deficits with those of white ginseng extract (WG) and red ginseng extract (RG). Methods: Ten-month-old mice were fed an AIN-93G-based diet containing 10 g/kg (low dose, L) or 30 g/kg (high dose, H) WG powder, RG powder, or BG powder for 24 wk. We measured serum lipids, the activities of antioxidant enzymes, and malondialdehyde levels. Additionally, the protein expression levels of choline acetyltransferase and vesicular acetylcholine transporter, which are presynaptic cholinergic markers in the cortex and hippocampus of the brain, were measured by western blotting. Results: Triglyceride levels were reduced in all the extract-treated mice, except those in the LBG group. High-density lipoprotein cholesterol levels in the HBG group were higher than those in the control group. Total cholesterol levels were reduced in the LBG group. Additionally, glucose levels in the HBG group were significantly reduced by 41.2%. There were lower levels of malondialdehyde in the LBG group than in the control group. Furthermore, glutathione reductase activity increased in the HWG group and the HRG group. The protein expression levels of choline acetyltransferase and vesicular acetylcholine transporter significantly increased in all the ginseng-treated groups. Conclusion: The results suggest that supplementation with the tested ginseng extracts may suppress the cognitive decline associated with aging, via regulation of the cholinergic and antioxidant defense systems.

• 한국축산식품학회지
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• 제38권4호
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• pp.737-748
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• 2018

We evaluated the physicochemical and storage characteristics of Hanwoo Tteokgalbi treated with onion skin powder (OSP) and blackcurrant fruit powder (BFP). The experimental design included seven treatments: a control (ascorbic acid 0.1%), T1: OSP 0.3%, T2: OSP 0.6%, T3: BFP 0.3%, T4: BFP 0.6%, T5: OSP 0.15%+BFP 0.15%, and T6: OSP 0.3%+BFP 0.3%. The OSP was higher in both polyphenol and flavonoid contents compared to BFP (p<0.05). The moisture and ash contents of all Tteokgalbi samples with a large amount of added natural antioxidant powder (0.6%) were higher than those with small amounts of added antioxidant (0.3%). The cooking loss and water holding capacity were outstanding in the T2 treatment compared to the others (p<0.05). The lightness, redness, and yellowness values were reduced on the addition of 0.6% antioxidant powder (p<0.05). The springiness and cohesiveness values of the Tteokgalbi samples were higher for the 0.3% addition than the control and 0.6% addition (p<0.05). The Tteokgalbi samples with natural antioxidants showed similar sensory attribute scores compared to the control. The pH values reduced as the BFP increased (p<0.05), and the total microbial count increased after OSP addition. The 2-thiobarbituric acid reactive substance values of the samples treated with OSP were significantly lower than the control after day 10 (p<0.05). As a result, the addition of OSP or BFP did not have a significant negative influence on the quality characteristics of Hanwoo Tteokgalbi. In particular, the addition of 0.6% OSP was effective in increasing water retentivity and inhibiting lipid oxidation.

• 한국결정성장학회지
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• 제21권2호
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• pp.70-74
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• 2011

다공성 $(Ca,Mg)_{0.15}Zr_{0.7}O_{1.7}$ 세라믹스를 제조하고 기공률 및 기계적 강도를 측정하여 SOFC 세라믹 지지체로서 응용 가능성을 조사하였다. 출발물질로 $ZrO(NO_3)_2{\cdot}2H_2O$를 선정하고 이를 이온 교환수에 용해하여 glycine을 첨가하여 glycine 연소법으로 $ZrO_2$ 분말을 합성하고 $800^{\circ}C$에서 하소하여 $ZrO_2$ 원으로 사용하였다. 합성한 $ZrO_2$ 분말, dolomite, 그리고 pore former로 carbon black을 혼합하고 $1200{\sim}1400^{\circ}C$로 소성하여 다공성 $(Ca,Mg)_{0.15}Zr_{0.7}O_{1.7}$ 세라믹스 소결체를 제조하였다. $(Ca,Mg)_{0.15}Zr_{0.7}O_{1.7}$ 세라믹스의 결정상은 단일상의 cubic상이었다. $1300^{\circ}C$ 에서 소성한 $(Ca,Mg)_{0.15}Zr_{0.7}O_{1.7}$ 세라믹 소결체는 carbon black의 양이 증가할수록 기공률이 32 %에서 55 %까지 증가하였으며 기계적 강도는 90 MPa로부터 30 MPa까지 감소하였다.