• 한국식품과학회지
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• 제13권1호
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• pp.37-42
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• 1981

우리나라에서 재배된 4가지 품종의 보리와 이들의 맥아에서 추출한 총지방질중 극성지질의 조성을 관, 얇은막 및 기체-액체 크로마토그래피로 분석한 결과를 요약하면 다음과 같다. 1. 4가지 품종의 보리와 이들 맥아의 총지방질중 당질의 평균함량은 8.9% 및 12.3%, 인지질의 평균함량은 17.3% 및 19.2%였으며, 보리중의 당지질 및 인지질의 함량은 맥아에서 평균 39.5% 및 11.5%가 증가하였다. 2. 보리의 당지질 중에는 DGDG 와 MGDG가 평균 35.5%및 28.6%로 주요성분이 었고 SG와 Cerebroside는 20.7% 및 15.2%이었으며, 보리중의 DGDG 와 MGDG 는 맥아에서 감소되었으나, SG 와 Cerebroside는 증가하였다. 3. 보리의 인지질 중에는 phosphatidyl choline(PC), lysophosphatidyl choline(LyPC), diphosphatidyl glycerol(DPG), phosphatidyl ethanolamine(PE)의 순으로 함유되어 있었으며, 맥아는 보리에 비하여 PC, LyPC는 감소하였으나 PE와 DPG는 증가하였다. 4. 보리와 맥아의 지방질중 당지질 및 인지질 획분의 지방산조성과 그 변화는 총지방질과 중성지질 획분의 지방산조성 및 그 변화 패턴과 비슷하였다. 그러나 당지질 획분중에는 리놀레산, 인지질 획분중에는 팔미트산의 함량이 다른 획분들에 비하여 많았다.

• 혜화의학회지
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• 제8권1호
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• pp.827-836
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• 1999

Numerous persons complained dyspepsia even though no specific objective findings are revealed by imaging study, laboratory examinations and other clinical research. To find out of so many symptoms what they are, I would to approach by two ways. One way is oriental medical literatural study and the other is Helicobacter pylori infection that is accepted as one of most important causal factors of many gastric diseases. Background/Aims: Recently, the role of Helicobacter pylori as a causal factor in the etiology of gastric cancer, peptic ulcer, gastritis and low-grade gastric mucosa-associated lymphoid tissue(MALT) lymphoma is well known. Using endoscopy, biopsy urease testing and histology are recommanded as the tests of choice. Serological test is not recommanded at the moment because of its low sensitivity and espicially low specificity. The urea breath test is more sensitive and specific noninvasive test than serologic test, but it is not widely available yet. Methods/Results: We studied 90 cases by diagnostic endoscopy as a screening test for the persons complaining gastrointestinal symptoms. As a result eighteen persons are revealed to be Helicoacter pylori infected histologicaly. Conclusion: More specific literatural studies are requied.

• Journal of Ginseng Research
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• 제31권4호
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• pp.191-195
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• 2007

Red ginseng sikhye is one of Korean unique beverages with the addition of effective ingredients of ginseng. Considering economical and mechanical efficiency and quality of sikhye, the optimum conditions for saccharification is to saccharify at 90 degree celsius for 3 hours in the composition of 4% of malt, 20% of steamed rice, and 6% of red ginseng power. The red ginseng sikhye has high soluble solid content over 33% compared with conventional commercial sikhye. On the other hand, ginseng sikhye, which shows low pH, has more or less higher acidity than conventional commercial one. Especially the turbidity of the red ginseng sikhye is much higher than that of commercial sikhye, due to as high amount of rice as 20% compared with 3% in the commercial one. The use of high quantity of rice affected the level of turbidity in red ginseng sikhye. In this study, we wanted to establish optimum conditions for saccharification in manufacturing red ginseng sikhye which contains effective herbal medicinal ingredients maintaining the original taste of traditional sikhye.

• 한국지반공학회지:지반
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• 제7권4호
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• pp.49-64
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• 1991

석회 및 시멘트에 의한 안정처리는 이미 일반화 되어있지만 본 연구는 해안지역에서 토질안정처리를 할 경우 염분이 처리토의 강도발현에 미치는 영향에 관한 문제를 검토하였다. 실험 분석한 결과 시료토의 염분함량은 PH변화와는 거의 관계가 없으며 석회나 시멘트 첨가량 10%에서 석회의 PH는 12.4, 시멘트는 11.6에 근접하였다. 또한 양생기간이 7일 이상인 경우 시간이 경과할수록 PH 와 Ca++이온 농도가 감소함을 볼 수 있었고 첨가량 10%의 처리토를 90일 양생한 후 X-ray회절 분석한 결과 NaCl 8%함유의 처리토가 0%함유의 것보다 Tobermonite, Etringite등의 반웅 생성 peak가 감소함을 확인할 수 있었다. 석회와 시멘트 처리토를 2$0^{\circ}C$와 5$^{\circ}C$로 양생 했을 때 2$0^{\circ}C$로 양생한 것이 5$^{\circ}C$로 양생한 것보다 일축압축강도가 크고, 기건양생의 처리토가 수침양생의 것보다 압축 강도가 컸다. 그리고 2~4%의 염분함량은 처리토의 일축압축강도를 촉진시키거나 강도발현을 저해하지 않았으나 8%의 경우에는 강도발현이 저하됨을 알 수 있었다.

• 한국식품과학회지
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• 제29권5호
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• pp.913-918
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• 1997

전통식 고추장의 품질 개선과 담금방법을 표준화하기 위하여 담금원료를 달리한 고추장을 90일간 숙성시키면서 맛성분의 변화를 조사하였다. 고추장의 유리당은 maltose와 glucose가 대부분이었고 엿기름 첨가구에서 많았다. 유기산은 succinic acid와 citric acid가 다량 함유되었고 다음으로 formic acid이었으며, succinic acid는 숙성 중 감소하였으나 citric acid는 증가하였고, 자색고구마와 구기자 첨가 고추장에서 많았다. 고추장 중의 유리아미노산은 glutamic acid, serine, aspartic acid, alanine, lysine이 다량 함유되었고 cysteine, methionine, histidine은 소량 함유되었다. 숙성중 유리아미노산은 증가하였고 glutamic acid, aspartic acid, histidine이 다른 아미노산에 비하여 숙성중 많이 증가하였으며 자색고구마 첨가 고추장에서 높았다. 핵산성분은 담금초 cytidine-5-monophosphate가 대부분을 차지하나 90일 숙성후에는 hypoxanthine이 대부분을 차지하였고 자색고구마와 구기자 첨가 고추장에서 많았다.

• 한국응용약물학회:학술대회논문집
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• 한국응용약물학회 1994년도 춘계학술대회 and 제3회 신약개발 연구발표회
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• pp.174-174
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• 1994

항종양 물질의 탐색 및 연구 작업이 미생물을 대상으로 행해져 온것은 이미 오래전부터 이며, 기존의 연구 발표된 것들을 볼때 미생물 스크리닝의 증요성은 점차 증대되어가고 있다. 이에 본 연구에서는 국내 토양에서 방선균 약 1000여주를 분리하여 항종양 물질을 생산하는 방선군의 분리, 동전하고, 그 생산물질의 특성을 밝히고자 하였다. 방선균의 분리는 전국 각지에선 채집한 토양시료 각 1 g 씩을 80 $^{\circ}C$에서 90분간 건조처리한후 멸균된 증류수를 이용하여 각 단계별로 희석하여 Starch nitrate casein agar와 Glycerol asparagine agar를 사용하여 방선균을 분리하였다. 분리된 방선균을 Yeast extract-malt extract 액체 배지에서 7일간(160 rpm/28 $^{\circ}C$) 배양하였다. 여기에서 얻어진 배양액을 이용하여 항종양능을 확인한기 위해서 암세포주인 L1210주와 P388 D$_1$주, 정상 세포주로는 Vero 세포주를 이용한 MTT colorimetric assay를 이용하였다. 이들 실현에 대한 결과로써 S-104, 117, 409의 세 균주의 항종양물질 생산 균주를 분리하였다. 이들 균주가 생산하는 물질들은 기존의 시판 항암제인 Adriamycin에 비해 높게 나타났으며, 이들 균주의 동정은 ISP의 기준에 의하여 행하였다.

• The Plant Pathology Journal
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• 제24권1호
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• pp.87-89
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• 2008

A blue mold on tomato fruit caused by Penicillium oxalicum occurred sporadically in a greenhouse at Gyeongsangnam-do Agricultural Research and Extension Services. Infection usually occurred through wounds or cracks on the fruits. Symptoms began with water soaking lesions, then became watery and softened eventually. Colony of the causal fungus was white at the early growing stage, turned green on Czapek yeast extract agar and malt extract agar. Conidia were ellipsoidal in shape and $2-6{\times}2-4{\mu}m$ in size. Stipes were septate, smooth, thin walled, and $90-280{\times}3-4{\mu}m$ in size. Penicilli were mostly biverticillate. Ramuli were 1-3 groups, smooth, and $10-16{\times}2-3{\mu}m$ in size. Rami were 1-2 groups and $6-30{\times}2-4{\mu}m$ in size. Metulae were 2-3(5) verticils, smooth, and $12-20{\times}3-4{\mu}m$ in size. Phialides were 5-7 verticilate, ampulliform to cylindroidal, smooth, and $8-12{\times}2-3{\mu}m$ in size. Optimum temperature for growth was about $25^{\circ}C$. Pathogenicity of the fungus was proved on tomato fruit according to Koch's postulation. On the basis of mycological and pathological characteristics, the fungus was identified as P. oxalicum Currie & Thom. This is the first report of the blue mold on tomato fruit caused by P. oxalicum in Korea.

• 한국식품조리과학회지
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• 제14권1호
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• pp.91-96
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• 1998

맥아제조(15$^{\circ}C$)시 amylase 활성이 가장 높은 1.5배~2.0배(1.20 cm-1.95 cm)의 잎눈 길이는 9일 째에 관찰되었고, 엿기름의 추출시간에 따른 총당과 환원당은 3시간 30분에 2.33%, 1.61%로 가장 높았고 4시간에는 다소 감소하였으며, 굴절당도계로 측정한 당도와 amy- lase 활성도 3시간 30분에 3.4 brix(%), 28,332 units로 같은 양상을 보였다. 당화과정 중 당화초기에서 8시간까지 변화를 보면 총당은 멥쌀의 경우 3.90%에서 9.27%로, 찹쌀의 경우 4.19%에서 11.91%로 증가하였고 환원당도 멥쌀의 경우 3.30%에서 7.61%로, 찹쌀의 경우 3.31%에서 9.11%로 각각 증가하였다 Brix도 멥쌀의 경우 3.6 brix(%)에서 10.8 brix(%)로, 찹쌀의 경우 3.6 brix(%)에서 12.8 brix(%)로 당화시간이 증가할수록 증가하였다. amylase 활성은 당화시간이 증가할수록 감소하는 경향을 보였고 pH는 서서히 감소하다가 4시간 이후에는 거의 변화가 없었다. 식혜밥알의 형태는 당화시간이 증가할수록 가수분해되어 전분립이 빠져 나와 구멍이 점점 크게 나타남을 볼 수 있었다.

• Journal of the Korean Wood Science and Technology
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• 제26권3호
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• pp.53-62
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• 1998

In this research, 7 species of white rot fungi were used for determining the resistance against pentachlorophenol (PCP). Three fungi with good PCP resistance were selected for evaluating the biodegradability, and biodegradation mechanism by HPLC and GC/MS spectrometry. Among 7 fungi, there were significant differences on PCP resistance on 4 different PCP concentrations. In the concentrations of 50 and 100ppm ($\mu$g of PCP per g of 2% malt extract agar), most fungi were easily able to grow, and well suited to newly PCP-added condition, but in that of more than 250ppm, the mycelia growths of Ganoderma lucidum 20435, G. lucidum 20432, Pleurotus ostreatus, and Daldinia concentrica were significantly inhibited or even stopped by the addition of PCP to the culture. However, Trametes versicolor, Phanerochaete chrysosporium, and Inonotus cuticularis still kept growing at 250ppm, indicating the potential utilization of wood rot fungi to high concentrated PCP biodegradation. Particularly, P. chrysosporium even showed very rapid growth rate at more than 500ppm of PCP concentration. Three selected fungi based on the above results showed an excellent biodegradability against PCP. P. chrysosporium degraded PCP up to 84% on the first day of incubation, and during 7 days, most of added PCP were degraded. T. versicolor also showed more than 90% of biodegradability at 7th day, and even though the initial stage of degradation was very slow, I. cuticularis has been approached to 90% at 21 st day after incubation with dense growing pattern of mycelia. Therefore, the PCP biodegradability was definitely dependent on the rapid suitability of fungi to newly PCP-added condition. In addition, the PCP biodegradation by filtrates of P. chrysosporium, T. versicolor, and I. cuticularis was very minimal or limited, suggesting that the extracellular enzyme system may be not so significantly related to the PCP biodegradation. Among the biodegradation metabolites of PCP, the most abundant one was pentachloroanisole which resulted in a little weaker toxicity than PCP, and others were tetrachlorophenol, tetrachloro-hydroquinone, benzoic acid, and salicylic acid, suggesting that PCP may be biodegraded by several sequential reactions such as methylation, radical-induced oxidation, dechlorination, and hydroxylation.

• 한국식품영양학회지
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• 제27권3호
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• pp.414-420
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• 2014

This study was performed to increase the yield and to reduce the processing times for the preparation to improve the productivity and quality of rice jochung, a traditional food in Korea. In order to evaluate the quality characteristics and yield of jochung, the viscosity, color value, mineral contents and the sensory evaluation were measured. Jochung is prepared from steamed rice (STR), wet-milled rice flour (WRF) and dry-milled rice flour (DRF) by processing methods of rice and reacting times (6 hours or 13 hours) of liquefaction and saccharification. There is commonly added liquefying enzyme for rice liquefaction (0.4%/10 kg rice, at $85{\sim}90^{\circ}C$ for 1 hour or 4 hours) and saccharogenic enzyme with malt (2.5% or 4.5%/10 kg rice, at $56{\sim}60^{\circ}C$ for 5 hours or 9 hours). The inner structural properties of WRF showed the more distinct shape regular structure of uncombined starch particles but the DRF closely maintained particles of rice flour observed by SEM. If processing times for liquefation and saccharification were reduced from 13 hours to 6 hours, the yield of jochungs prepared with WRF increased 8%, the DRF 7%, and the STR 3% respectively and the sensory evaluation as well as color values and overall desirability received high scores. The viscosity, color a and b values of jochung processed with WRF for 6 hours were lower than that processed for 13 hours. The viscosity and color a, b value and Ca content were decreased in the jochung processed with WRF or DRF for 6 hours, but Mg, P and K were increased than that of STR. Jochung processed by 0.4% liquefying enzyme and 2.5% malt with WRF for 6 hours will increase the yield, save manufacturing times and costs and will thereby enable cost-effective techniques.