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      • 전분질 원료를 혼용하여 담금한 탁주의 품질특성

        황미연,이택수 서울여자대학교 자연과학연구소 2004 자연과학연구논문집 Vol.16 No.-

        쌀, 찹쌀, 보리쌀, 밀가루 등의 전분질 원료를 흔용하여 담금한 탁주의 품질을 검토한 결과는 다음과 같다. 에탄올 함량은 발효 중 증가하여 발효 14일에 7.8-11.0% 로 최대치를 보였고, 이 기간에 쌀, 찹쌀, 보리쌀의 혼용구와 쌀, 보리쌀의 혼용구에서 높았고 쌀 단용구는 낮았다. pH는 담금 직후에 pH 4.45-4.84 였고 발효 14일에 pH 3.54-3.84로 저하되었다. 담금일에는 쌀, 찹쌀, 보리쌀, 밀가루의 혼용구에서 다소 높았으나 발효 14일에는 쌀, 찹쌀의 혼용구에서 높았다. 총산은 발효 중 증가하여 14일에 1.03-1.40% 로 최대 함량을 보였고, 쌀단용구가 높았다. 총당은 담금일에 14.03-20.55% 였고 발효 14일에는 5.45-6.67%로 저하되었으나 시험구간의 차이는 거의 없었다. 환원당의 함량은 담금 직후에 9.05-11.23% 로 가장 높았고, 발효 14일에 0.07-0.25% 로 현저히 저하되었으나 시험구간의 차이는 없었다. 탁주의 색도중 밝기 값은 쌀, 찹쌀의 혼용구에서, 적색도는 쌀 단용구에서 높았다. The qualities of Tekju prepared by blending the starchy materials such as rice, glutinous rice, barley and wheat flour were evaluated. The content of ethanol increased progressively during fermentation process, and ranged 7.8-11%, which was exhibited the highest at the period of fermentation for 14 days. At this period, Tsklu prepared with mixture of rice, glutinous rice, and barley and with mixture of rice and barley were higher than that prepared with only rice in ethanol content. At the initial stage of fermentation, pH was in the range of 4.45 to 4.84, but at the 14th day of fermentation the pH decreased to 3.54-3.84. The pH of Tskju made with rice, glutinous rice, barley and wheat flour was relatively higher at the starting day of fermentation, but the pH of Tekju made with rice and glutinous rice was higher at the 14th day of fermentation. The amount of the total acid increased during fermentation and exhibited the maximum at the 14th day of fermentation, higher in the Tekju made with rice than the other samples. Total sugar contents were 14.03 to 20.55 % at the beginning of fermentation period, they decreased to 5.45-6.67% at 14th day of fermentation. The total content of sugars among the Takjus made with different mixtures was shown not significantly different. The contents of reducing sugars were shown not significantly different among the Tekjus made with different mixtures, but it was in the range of 9.05-11.23%, which was the highest during fermentation, at the starting day of fermentation. However, the reducing sugar significantly decreased to 0.07-0.25% at the 14th day of fermentation. Investigation of the color value of the Tskju indicated the brightness ("L" value) of the samples made with mixture of rice and glutinous rice was the highest and the samples made with rice was shown to be higher than others in redness value("a" value).

      • SCOPUSSCIEKCI등재

        성상교 세포종에서 p53 유전자발현에 대한 면역조직화학적 연구

        황금,한용표,조미연,정순이,김헌주 대한신경외과학회 1995 Journal of Korean neurosurgical society Vol.24 No.3

        Nineteen astrocytic neoplasms, such as 9 case of glioblastoma multiforme, 6 case of anaplastic astrocytoma and 4 case of low grade astrocytoma, were analysed in view of the relationship between histopathologic grade, nuclear pleomorhism, grade of mutant p53 gene expression and mean survival time after operation. The histopathologic calssification by Ringertz and immunohistochemical stain for mutant p53 gene with the DO-7 anti-p53 oncoprotein mouse monoclonal antibody were applied, and the results obtained were as follows : 1) Among 19 cases, 18 cases were located in the supratentorium where 13 cases(42%) were located in the left and 17 cases(55%) in the right. 2) The p53 gene expression was detected in 12(63.2%) of the cases, as revealed by positive nuclear staining. All cases of glioblastoma multiforme showed p53 gene expression, compared with two(33.3%) cases of anaplastic astrocytoma and one(25%) case of low grade astrocytoma. The frequency and degree of histopathologic grade(p=0.03) 3) The mean survival time after operation was 29.49±4.08 months in case with p53-negative tumors and 12.93±3.14 months in cases with p53-positive tumors(p<0.05). 4) Both histopathological calssification and p53 gene expression showed a significant influence on servival (p=0.02 and p=0.03, respectively) 5) The relative risk for survival time was the highest in p53 gene expression. In conclusion, p53 gene expression appears to be one of the recommendable prognosticators among astrocytic neoplasms.

      • 전분질 원료를 혼용하여 담금한 탁주의 유리당, 유기산 및 미량알코올 함량

        황미연,이택수 서울여자대학교 자연과학연구소 2004 자연과학연구논문집 Vol.16 No.-

        Free sugars, organic acids and minor alcohols of the Tskiu mash were estimated in the preparations of Tekju. Free sugars including fructose, glucose, galactose, sucrose, and maltose were identified during fermentation. The amount of glucose was highest at the beginning of the fermentation, and decreased progressively in the process of fermentation. It was ended up with the lowest concentration among the sugars. At the beginning of fermentation total contents of free sugars were the highest in the Tekju preparations with mixture of rice, glutinous rice, barley and wheat flour, However, Tskju preparation with mixture of rice, glutinous rice, barley was exhibited to be highest in total sugar contents at the 14th day of fermentation. In the preparations, various organic acids including lactic acid, succinic acid, pyruvic acid, propionic acid, and succinic acid were produced and identified in the Tekiu mash. Lactic acid plus succinic acid was present in the mash with highest amount up to maximal content of 1,148 mg%. The preparation of Takju with mixture of rice and barley was shown the highest and lowest in the preparation of Tekju with mixture of rice, glutinous rice, and barley in terms of the content of total organic acid and lactic acid plus succinic acid. As minor alcohol other than ethyl alcohol, six different alcohols including isoamyl alcohol were detected. In the preparations of Takju with only rice, the total amount of the minor alcohols was detected with more amount than the others at the 14th day of fermentation. 쌀, 찹쌀, 보리쌀, 밀가루 등의 전분질 원료를 혼용하여 담금한 탁주 술덧의 유리당, 유기산 및 미량알코올을 측정한 결과는 다음과 같다. 탁주 발효중 fructose, glucose, galactose, sucrose, maltose 등의 유리당이 확인되었고, 이 중 glucose는 담금일에 가장 높았으나 발효기간의 경과에 따라 감소하여 타 유리당보다 함량이 낮기도 하였다. 유리당의 총 함량은 담금일에는 쌀, 찹쌀, 보리쌀, 밀가루의 혼용구에서, 발효 14일에는 쌀, 찹쌀, 보리쌀의 혼용구에서 높았다. 유기산으로 lactic acid+succinic acid, pyruvic acid, propionic acid citric acid 등이 탁주 술덧에서 확인되었으며, lactic acid+succinic acid 는 최대함량 1148 mg%로 탁주 유기산 중 함량이 가장 높았다. 쌀, 보리쌀의 혼용구는 발효 14일에 유기산의 총량과 lactic acid + succinic acid 의 함량이 가장 높았고 쌀, 찹쌀, 보리쌀의 혼용구는 낮은 편이였다. 에탄올 이외의 미량 알코올 성분으로 isoamyl alcohol 등 6종의 알코올이 시험구에 따라 검출되었으며, 발효 14일의 미량 알코올 총량은 쌀 단용구에서 다소 높았다.

      • 악성 섬유성 조직구종 1예

        정미정,정우권,박영립,황규왕,김영근 순천향의학연구소 1995 Journal of Soonchunhyang Medical Science Vol.1 No.1

        Malignant fibrous histiocytoma is the most common soft tissue sarcoma in adult life and shows a mixed proliferation of both fibroblastic and histiocytic cells. Because of its highly variable morphologic pattern, this tumor has often been confused with other sarcomas such as pleomorphic rhabdomyosarcoma and liposarcoma. We report a case of malignant fibrous histiocytoma occurring in a 22-year-old male who presented with a adult's fist-sized mass with several brown colored nodules on the right buttock of 3 years' duration. Histologic findings shows spindle cells arranged in a storiform pattern characteristic of the typical pleomorphic malignant fibrous histiocytoma.

      • 공간 데이터베이스에서 질의 최적화를 위한 공간 분할 기법

        이미란,황환규 강원대학교 정보통신연구소 2002 정보통신논문지 Vol.6 No.-

        It is important to calculate the query result size for query optimization in spatial databases. When processing queries to the database, the computing cost of the query result size satisfying query conditions is so expensive. To solve the problem, the query result size estimation based on the summary data approximating the distribution and characteristics of the spatial data is very efficient. In this paper, we propose a spatial partitioning technique based on Maxdiff(V,A) whose performance is evaluated very efficient in one dimensional database. This paper proves the proposed partitioning technique is superior to previous ones through experiments.

      • KCI등재

        Sweep Co-Distillation법에 의한 산화방지제의 추출법

        김재관,황혜정,오문헌,도영숙,윤미혜 한국식품영양학회 1999 韓國食品營養學會誌 Vol.12 No.4

        식용유지 중의 산화방지제를 효율적으로 분석하기 위하여 일반적인 용매추출법과 SCD법으로 전처리하여 HPLC법으로 비교 분석하였다. SCD법의 최적조건은 florisil의 활성도와 UNITREX의 온도와 추출시간에 따른 회수율로 분석하였다. 식용유지에 산화방지제를 농도별로 가하여 용매추출법과 SCD법의 회수율을 비교한 결과 용매추출법은 80.4∼102.1%, SCD법은 89.8∼106.4%로 나타났다. Florisil의 활성화에 따르면 2% 수분 첨가시 TBHQ, BHA, BHT는 89.8∼106.4%로 회수율이 가장 높았고, PG는 5% 수분 첨가시 53.9±7.3%의 회수율을 보였다. 회수율은 UNITREX의 210℃에서 20분간 추출하였을 때 가장 높았다. This study was conducted to evaluate the extraction methods for the determination of antioxidants in soybean oil. Recovery rates of various antioxidants in soybean oil showed similar rates as 80.4∼102.1% by solvent/solvent extraction method and 89.8∼106.4% by sweep co-distillation method except 46.6∼61.2% of PG at corresponding spiked concentractions. The maximum recovery rates of antioxidants were obtained when extraction time and extraction temperature used in UNITREX were 20min and 210℃ respectively. In the recovery rates with the activation of florisil, when 2% of water was added to florisil, the highest recovery rates for TBHQ, BHA, BHT were obtained by sweep co-distillation method. Therefore, sweep co-distillation method showed less solvent, simple operation and high recovery rate compared with solvent/solvent extraction method.

      • 一方向凝固시킨 Al-Cu-Mg共晶合金의 機械的 性質에 미치는 時效의 影響

        趙顯驥,康晃鎭,趙美子 慶北大學校 1982 論文集 Vol.33 No.-

        The microstructure and mechanical properties of unidirectionally solidified Al-Cu-Mg eutectic alloys have been studied in as-grown and aged condition. After unidirectionally solidification, specimens of solution treated and quenched eutectic were at 180°, 230°, 260℃ in a salt bath for various time. The results obtained are as follows; 1) Precipitation on hardening of the ductile phase is a feasible mechanism for strengthening of composites. 2) Mechanical Testing of the tenary eutectic has shown that composite is strengthened about 30 to 50% by ageing. 3) Tensile and compression strength of this composites are 25 and 70kg/㎟ by ageing treatment in growth 0.1mm/min. 4) The unidirectionally solidified structure are changed by ageing. It seems that the low Cu and Mg solute atoms are likely due to epitaxial precipitation onto CuAl_2 lamellar respectively.

      • 標識放鳥에 依한 韓國産 철새 集團의 季節的 分布와 그의 生態(Ⅰ)

        元炳旿,禹漢貞,咸奎晃,田美子,尹茂夫 慶熙大學校 1967 論文集 Vol.5 No.-

        實驗材料로 토기, 마우스 및 가물치를 使用하여서 致死至近量의 物理的 環境要因 (溫度, 重力, 電擊, 電離放射線 및 非電離放射線), 化學的 環境要因(無機이온) 및 生物學的 環境要因(媒質의 渗透壓)等에 依한 處理가 血液蛋白質의 電氣泳動像을 비롯하여 赤血球, 白血球, 헤마토크리트比, 血色素量, 赤血球脆弱性, 肝臟器官의 組織像 그리고 肝臟 및 腎臟器官重量等에 미치는 效果를 硏究調査하였다. 前記 致死至近量의 環境要因의 處理로 一般的으로 蛋白質代謝, 血液像, 肝臟器官의 組織像 및 肝臟器官重量等에 顯著한 變化를 招來함을 알 수 있었다. 總血淸蛋白質量의 顯著한 變化 및 알부민―굴로부린比의 變化等은 血液內의 渗透效果의 變化를 招來함을 示唆하여 준다. 血淸電氣泳動像의 變化는 前記 環境要因에 依한 處理로 因하여 蛋白質代謝의 異常 卽 肝臟機能의 異常을 招來함을 알 수 있다. 以上의 結果로 미루어 보아 致死至近量이 內的 및 外的의 物理的, 化學的및 生物學的 環境要因에 依한 處理로 因하여 血液蛋白質, 血液像 및 肝臟器官 等의 異常은 生體에 큰 損傷을 가져오며 아울러 生體의 生理的平衡에 有意性的인 變化를 招來한다고 思料된다. Seasonal distribution and ecology of migrant bird populations were studied by mist-netting and banding primarily in the ares of Kyunggido, Korea during 1963-1966. 1. From 6 June to 25 June 1963, 99 birds of 3 species and 3 July 1964 to 31 December 1966, a total of 123, 242 birds of 124 species were banded in Korea. 196 (144 Returns) recoveries of 22 species have been reported in Korea (outside of banding sites) and 7 recoveries of 5 species from abroad. 2. At Taenung, N.E. Seoul, Korea, 11623 birds of the Pied Wagtail and 9,013 birds of the House Swallow were banded in pear orchards. a. Both Wagtail and Swallow are summer resident Wagtail arrives Korea in the beginning of March and Swallows in early April and these gregarious species gather at night into large flocks to roost while juveniles maintain their post-breeding roosts in pear orchard from June to October until the time of Autumn migration. b. Both Wagtaill and Swallow maintain their roosts in the same site but they exhibit different roosting behavior. c. The time at which the Wagtails and Swallows arrive and leave the roost in relation to sunset varies with length of day, weather, however, light intensity mat remain the same. d. The Wagtail gathers around the feeding ground more than 20 kilometers from the roosting site. e. Some Wagtails and Swallows banded the previous year returned and roosted in the orchard. The fact that they repeatedly roost in the same areas suggest that after breeding some birds remain in the Orchard and some of them migrate southward. 3. During July 1964-October 1966, 78, 170 birds of 12 Emberiza species were banded primarily in Kyunggi-do. Emberiza rutila, Emberiza spodocephala, Emberiza tristrami and Emberiza aureola ornata are the dominant fall and spring migrants. In fall they prefer soy-bean, corn and especially millet fields while in spring they are mostly seen on wheat and barley fields. Emberiza rustica is the most abundant species during late fall and winter and they prefer open fields with bushes. Emberiza rutila migrates through Korea in May and from the beginning of August until the and of October. The sex ratio is 100 females to 155 males (11674 ♀, 17761 ♂). More males were caught than females each month except in September when more females were caught. Emberiza spodocephala migrates through Korea from the middle of April through the middle of May and from the meddle of September through October. Emberiza tristrami migrates southward through Korea the first half of May and during October. The sex ratio is 100 female to 140 males(392 ♀, 551 ♂). Emberiza aureola oruata megrates through Korea during May nd from early August until the end of October. Emberiza rustica migrates southward but some of them winter in Korea. The wintering period is from the early October until the end of April. The sex ratio is 100 females to 191 mules (13,450 ♀, 25,687 ♂). Emberiza yessoensis continentals migrates to Korea around the middle of October. Some of them wander in Korea while some of them migrate southward. The wandering period is from the middle of October to the meddle of February. Emberiza cioidos is a permanent resident and breeds in great number in Korea. However, they migrate southward in large flocks during winter and northward during spring. The sex ratio is 100 females to 159 males (497 ♀, 792 ♂). Emberiza e. elegans is a resident and breeds in fairly small number in Korea. but they migrate southward in large flocks around the end of October and northward around April. The sex ratio is 100 females to 280 males(462 ♀, 962 ♂). Emberiza f. fucata is a summer resident, arrives to Korea the middle of April and most of them migrate southward in September. Emberiza chrysophtys migrates southward through Korea in May and from September to October. Emberiza pusilla is a not uncommon transient during spring and autumn and some of it wanders during winter in Korea. Emberiza leucocephala leucocephala Known as a straggler based on the sex specimens but a rare winter visitor. It migrates southward through Korea and some of it wanders around the end of January to the middle of March. 4. Noteworthy records of 21 species observed by the authors and some new species in Korea are given, each with notes on banding and collection records-See text for each species. Observations were made on the feeding habits of nestlings of ten species, Lanius tigrinus, Butorides striatus amurensis, Fhnberiza f. fucata, Motazilla alba leucopsis, Oriolus chinensis diffusns. Accipiter nisus nisosimilis, Mierascelis amaurotis henssent. Garrulus glandarins brandtii, Accipiter solecnsis and Cyanopica eyamts Koreensis. The investigation was made in Kwangnung experimental forest, Kyunggido and the nearby open field by using collar method. Accipiter nisus nisosimiles, Microscelis amaurotis hensoni, Garrulus glandarius brandtii and Cyanopiea cyanus Koreenses are permanent residents and the other six species are common summer residents. The following is the food that these nestlings consumed. 1. Lanius tigrinus The food they consumed was animal matter Composes of; insect larvae-41.5%, insect adults-49.4%, spiders-7.69%, frogs-1.53%. The cicada, Gampsocleis ussuricnsis made up 33.8% of the insect larvae. The cricket, Platyplenra kacmpferi made up 35.4% of the adult insects. Only one species of spiders, Clubiona jucunda was seen, 7.69% of the food. 2. Butorides striatus amurensis The food was animal matters composed of; small freshwater fishes-18.57%, Ranidae-45.71%, others-5.71%. Twenty percent of the small freshwater fishes was Zacco platypus while Hemibarbus logirostris made up 14.28%. Among Amphibians, Rana n. nigromaculata included 22.8%. 3. Emberiza f. fucata The food was amimal matter; insect larvae-63.3%, adult insects-25.64%, others-12.78%, Since 48.1% of the food items was larvae of Pieris rapae, it is most useful for agriculture. 4. Motacilla alba larcopsis The food during their nestling period was animal matter compsed of; insect larvae-30.5%, adult insects-55.4%, spiders-13.9%. The commonest insect larvae were Odonata indet.-22.2%. The commonest adult insects were Syrphidae indet.-16.6%. Of the spiders Lyecsa sp. made up 12.1% and Lycosa astrigera-2.8%. 5. Oriolus chinensis diffusus The food was animal matter composed of; insect larvae-62.36%, adult insects-20.17%, others017.42%. It should be noted that from the initial time of its feeding until leaving it consumed Dendrolimus spectabilis, a noxious forest insect which made up 45.08% of the diet. Thus it is very useful birds eliminating noxious forest insects. 6. Accipiter nisus nisosimilis The food was animal matter composed of; small passerine birds-87.5%, Ranidac-12.05%. It consumed such forest birds as Paridae. 7. Microscelis amauretis hensani The food was primarily insect adults-79.65%, Mollusca-12.15%, vegetable matter-4.05%, insect larvae-2.70%. Araneina-1.35%. Homoptera was 43.35% of adult insects. 8. Garrulus glaudarins brandtii The food during its nestling pcriod was solely animal matter; insect larvae-38.80%, adult insects-28.90%, Araneina-24.87%, adult Amphibia-15.49%. Right afrer hatehing and until leaving its nest, Dendrolimus spectabilis-35.08%, Arancina-24.87%, Clubiona jueunda-6.43% were fed. Therefor 73.48% of the total food was noxious forestry insects. 9. Accipiter soloensis The food during the whole feeding period was primarily Rana n. nigroma-culata 89.09%, but small quantity of Platypleura Kaempferi 8.26%, was also fed. 10. Cyanopica cyanus koreensis The food was composed of; insect larvae-6.11%, adult insects-60.55%, Hyla arborea japonica 12.22%, vegetable matter-1.11%. Gampsocleis ussuriensis-23.39%, Platypleura knempferi-15.55%, and Hyla arborea japoniea-12.22% were the prefered food supplied during the whole feeding period.

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