• 한국식품위생안전성학회지
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• 제19권1호
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• pp.31-37
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• 2004

본 연구는 콩, 메주, 그리고 된장을 제조하여 장기간(12개월) 숙성시키는 과정 중에 아미노산성질소, 아미노산, 유리아미노산 및 색도의 변화를 관찰하고자 수행되었다 된장의 제조는 한국식품개발원의 지침에 따라 수행하였으며 제조 직후, 6개월 숙성 및 12개월 숙성 후에 시료를 분석하였다. 된장의 아미노산성질소는 제조 직후에는 콩과 메주에 비하여 높았으나(p〈0.05)숙성기간이 경과함에 따라 감소하는 경향이었다. 된장의 아미노산 총량은 콩보다 매우 낮았으나 유리아미노산 총량은 매우 높았다(p〈0.05). 된장의 아미노산 총량은 숙성 중 뚜렷한 차이를 보이지 않았으나 유리아미노산 총량은 숙성기간이 경과함에 따라 감소하는 경향을 보였다. 아미노산에 대한 유리아미노산의 비율 (유리율)은 총량으로 콩의 경우 0.8%, 메주의 경우 17.3%, 그리고 된장의 경우 숙성 중 20.4∼32.9%이었다. 된장의 숙성중 아미노산이나 유리아미노산의 조성은 변화되었으나 어느 시점에서나 지미 성분인 glutamic acid가 가장 많이 검출되었으며, 그 유리율은 21.1∼41.3%이었다. 된장의 색도(명도, 적색도 및 황색도)는 숙성기간이 경과함에 따라 낮아졌다. 이로부터 된장의 아미노산 함량은 비록 콩에 비하여 매우 낮지만, 아미노산 유리율은 메주의 제조와 발효로부터 증가되고 된장의 숙성과정에서 더욱 증가되는 것을 알 수 있다. 된장의 아미노산성질소, 아미노산 및 색도에 의한 관능적 품질은 숙성 12개월 후에는 떨어지는 것으로 보인다.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2003년도 춘계학술대회 논문집 센서 박막재료 반도체 세라믹
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• pp.295-298
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• 2003

The principal problems in development of dielectric paste materials for PDP(plasma display panel)are PbO free paste and low melting temperature. We prepared PbO free paste from glasses in the system BaO-ZnO-$B_2O_3-V_2O_5$. DTA, XRD and SEM were used to study and characterize BaO-ZnO-$B_2O_3-V_2O_5$ glasses. PbO free paste developed at this paper has thermal expansion of $74{\times}10^{-7}/^{\circ}C$, DTA transformation point of $460^{\circ}C$, and firing condition of $560^{\circ}C$, 10min.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2005년도 하계학술대회 논문집 Vol.6
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• pp.524-525
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• 2005

The principal problems in development of dielectric paste materials for PDP(plasma display panel)are PbO free paste and low melting temperature. We prepared PbO free paste from glasses in the system $ZnO-B_2O_3-Bi_2O_3-SiO_2$, DTA, and XRD were used to characterize $ZnO-B_2O_3-Bi_2O_3-SiO$ glasses. In this present study, PbO free paste had thermal expansion of $74\times10^{-7}/^{\circ}C$, DTA transformation point of $470^{\circ}C$, and firing condition of $540^{\circ}C$, 20min.

• 한국식품조리과학회지
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• 제21권3호
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• pp.360-370
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• 2005

The aim of this study was to fud the optimum addition mont of astringency persimmon paste to rice flour in the preparation of Gamsulgiduck (persimmon rice cake). The moisture content of Gamsulgiduck with added astringency persimmon paste was $42\~45\%$. With increasing addition of astringency persimmon paste, the L-value was decreased. The a- and b-values were the highest at the $15\%\;and\;10\%$ levels, respectively. In the mechanical evaluation of Gamsulgiduck the hardness was the lowest at the $20\%$ astringency persimmon paste-sulgiduck during storage. The adhesiveness and cohesiveness did not differ significantly with the addition of astringency persimmon paste for storage period. The springiness was the highest at the $0\%$ level except for 2days of storage. The gumminess was the lowest at the $20\%$ level and the brittleness was the highest at the $0\%$ level during storage. In the sensory evaluation of Gamsulgiduck the acceptance of the softness and chewiness characteristics was the best at the 15% level. Gamsulgiduck with the addition of $15\%$ of astringency persimmon paste to rice flour was found to be the best recipe in terms of the sensory qualities of softness, chewiness and overall acceptability.

• 한국식품영양과학회지
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• 제24권6호
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• pp.990-997
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• 1995

Effect of preparation method on Yulmoo kimchi(watery kimchi prepared with Yulmoo, leaf radish) fermentation was investigated by measuring physicochemical, microbiological and sensory properties for 20 days. Yulmoo kimchi was fermented at 4$^{\circ}C$ after keeping at room temperature(27$\pm$0.5$^{\circ}C$) for 8 hours. Four types(A, B, C, D) of Yulmoo kimchi were prepared. Sample A was made without wheat flour paste and red pepper powder and sample B was made with wheat flour paste. Sample C was made with red pepper powder, and sample D was made with wheat flour paste and red pepper powder. pH was slowly lowered and stabled after 10 days in all samples. Total acid content increased in all samples. Reducing sugar content initially increased and decreased thereafter. Especially, reducing sugar content of sample B increased in the early stage of fermentation and maintained initial reducing sugar content after 20 days. Total vitamin C content reduced during fermentation in all samples. Especially initial total vitamin C content of sample D increased more than those of other samples relatiely. Lightness and yellowness showed no difference, but on the other hand redness increased gradually in all samples. The number of lactic acid bactgeria reached maximum value in 10~13 days with the total cell numbers and gradually decreased thereafter in all samples. The number of lactic acid bacteria and total cell number of sample D was much more than those of any other samples. As a result of the sensory evaluation, Yulmoo kimchi showed significant difference in all characteristics. Sample D showed the highest scores in all characteristics before 10 days of fermentation. However, after 10 days sample B showed the highest scores.

• 한국식품영양과학회지
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• 제15권4호
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• pp.1-9
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• 1986

Aspergillus oryzae, Bacillus subtilis 및 Bacillus natto를 접종하여 만든 메주와 재래식메주로 된장을 각각 담금한 후 숙성과정중의 성분을 조사한 결과는 다음과 같다. 아미노태 질소함량은 Aspergillus oryzae구와 재래식 메주구가 Bacillus subtilis구와 Bacillus natto구에 비하여 월등히 높았다. 총당, 환원당은 재래식 메주구가 다소 많았고 pH는 Aspergillus oryzae구가 경시적으로 pH 5.0이상을 나타냈으나 Bacillus subtilis구는 4.5미만으로 pH저하가 심하였다. 숙성 90일 된장의 유리아미노산 중 Asp. Thr. Ser. Glu. Gly. Ala. Cys. Val. Met. Leu. Lys. His.은 Aspergillus oryzae구의 된장에서 Tyr. Arg. Pro.은 재래식구의 뒨장에서, Ileu. Phe.의 함량은 Bacillus subtilits구의 된장에서 각각 높게 나타났으며 유리아미노산의 총량은 Aspergillus oryzae구가 타시험구보다 월등히 높았다.

• 한국수산과학회지
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• 제38권3호
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• pp.137-142
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• 2005

New types of patties were prepared with surimi and crab paste, and then characterized. With an increase of additional ratios of crab paste, the moisture (64.8 to $61.5\%$) of the patties slightly decreased while the ash contents (2.3 to $3.7\%$) increased. The Hunter's color values of the patties decreased in lightness (L value, 58.79 to 54.27) but increased in redness (a value, -2.77 to 3.54). Thus, the patties that had added crab paste appeared slightly more reddish. According to the increasing of additional ratios of crab paste, sensory scores on color and flavor increased whereas the texture score decreased. From the above results, based on physical properties and sensory evaluation, the desirable additional ratio of crab paste for preparing patty was $15\%$. The calcium and phosphorus contents of the patties with the addition of $15\%$ crab paste were 148.8 mg/100 g and 139.6 mg/100 g, respectively, and their ratio (approximately 1:1) was the optimal range in body absorption efficiency. The calcium absorption rate with the $15\%$ additions was 4.9 times higher than that of the patty with no additions. Total amino acid content (16,302 mg/100 g) of the $15\%$ additions showed no difference to the patty without additions, and the major amino acids were aspartic acid, glutamic acid, leucine and lysine. Exceptionally, the cysteine content of the patty with the $15\%$ crab paste additions was 2 times higher than that found in the patty without crab paste. The major fatty acids were 16:0, 18:1n-9 and 18:2n-6 of the total lipids, and there was no difference between the patties with and without crab paste. The above results showed that crab paste can be used as a crab surimi gel source.

• 한국세라믹학회지
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• 제47권4호
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• pp.319-324
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• 2010

Screen printable $MoSi_2$ paste and its ceramic sheet heater were investigated. $MoSi_2$ powder without $Mo_5Si_3$ second phase, which causes so-called pest phenomena, was synthesized by SHS technique. Over glaze was also developed for preventing pest phenomenon. The maximum temperature of $MoSi_2$ ceramic heater was over $500^{\circ}C$. After several heat up and cooling cycle, the $MoSi_2$ heater reveals pest phenomenon. Conductive $MoSi_2$ paste could be used in electronic ceramics, i.e., MLCC, LTCC, HTCC, and etc.

• 한국마이크로전자및패키징학회:학술대회논문집
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• 한국마이크로전자및패키징학회 2002년도 추계기술심포지움논문집
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• pp.101-103
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• 2002

PDP등의 각종 전자부품에 사용되는 Ag paste 의 frit은 주로 PbO를 주성분으로 하는 물질이 사용되어왔다. 그러나 이러한 Pb계 재료는 환경유해한물질로 규제대상이 되고 있다. 이에 대비하여 본 연구에서는 Bi$_2$O$_3$을 주성분으로 하여 B$_2$O$_3$, SiO$_2$, A1$_2$O$_3$가 함유된 새로운 frit을 개발하였다. TMA등을 이용하여 열적 특성을 관찰하였으며, 전극용 Ag-Paste를 제조한 후 스크린프린팅하여 인쇄성과 미세구조를 관찰하였고, 전기저항 및 소성두께를 측정하였다. 또한 전이온도, 연화점, 열팽창계수등을 조사하여 기존의 Pb함유 frit과 물성을 비교하였으며 PDP용 Ag전극에 적용하는 새로운 frit으로의 가능성을 검토하였다.

• 한국식품영양과학회지
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• 제13권2호
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• pp.143-148
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• 1984

정어리소시지 품질 개선을 위한 기초자료를 얻을 목적으로, 소시지원료로서 정어리냉동고기풀을 제조하여 그 소시지 형성능에 대해 선어로써 만든 정어리 소시지와 비교하고 아울러 동결저장 중 품질 안정성에 대해서도 검토하였다. 소시지 중간원료인 정어리냉동고기풀은 소시지로서의 가공적성 및 저장안정성면으로 보안 냉동변성 방지제로서 sorbitol 4%, 축합인산염 0.3% 첨가한 것이 좋았다. 또한 이 정어리냉동고기풀로 만든 소시지의 품질은 선어를 원료로 했을 때와 비교하여 손색이 없었다.