• 동아시아식생활학회지
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• 제21권4호
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• pp.514-519
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• 2011

해당화 150 g을 각각 증자법과 무증자법으로 처리한 쌀 3,000 g에 첨가하여 막걸리를 제조하였다. 이때 스타터균으로 누룩(150 g)과 효모(60 g)를 사용하여 $25^{\circ}C$에서 14일 동안 발효하였다. 무증자법으로 제조한 막걸리는 당도 $13.0^{\circ}$Bx, pH 4.3, 에탄올 농도 11.8%였으며, 증자법으로 제조한 막걸리는 당도 $14.0^{\circ}$Bx, pH 4.6, 에탄올 농도 14.4%였다. 최종 막걸리의 유산과 초산 함량은 무증자법으로 제조한 막걸리에서 유의적으로 높게(p<0.05) 나타났다. 또한, 아미노산 분석에서는 무증자법으로 제조한 막걸리에서 ${\gamma}$-amino-n-butyric acid 함량이 증가하여 생리 기능성이 향상된 결과를 보였다. 결론적으로, 본 연구 결과는 쌀의 전처리 공정이 막걸리의 맛과 기능성에 큰 영향을 준다는 것을 보여준다.

• Journal of Biosystems Engineering
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• 제36권5호
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• pp.326-333
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• 2011

The need for rapid on-site monitoring of hydroponic macronutrients has led to the use of ion-selective electrodes, because of their advantages over spectrophotometric methods, including simple methodology, direct measurement of analyte, sensitivity over a wide concentration range, and low cost. Stability and repeatability of response can be a concern when using multiple ion-selective electrodes to measure concentrations in a series of samples because accuracy might be limited by drifts in electrode potential. A computer-based measurement system could improve accuracy and precision because of both consistent control of sample preparation and easy calibration of sensors. Our goal was to investigate the applicability of a cobalt-based electrode used in conjunction with a laboratory-made automated test stand for quantitative determination of ${PO_4}^-$ in hydroponic solution. Six hydroponic solutions were prepared by diluting highly concentrated paprika hydroponicsolution to provide a concentration range of 1 to 300 ppm $PO_4$-P. A calibration curve relating electrode response to phosphate in paprika hydroponic solution titrated to pH 4 with 0.025M KHP was developed based on the Nikolskii-Eisenman equation with a coefficient of determination ($R^2$) of 0.94. The laboratory-made test stand consisting of three cobalt-based electrodes measured phosphate concentrations similar to those obtained with standard laboratory methods (a regression slope of 0.98 with $R^2$ = 0.80). However, the y intercept was relatively high, 30 ppm, probably due to the relatively large amount of variation present among multiple measurements of the same sample. Further studies on the high variation in EMFs obtained with cobalt electrodes during replicate measurements were required for P estimations comparable to those obtained with standard laboratory instruments.

• Preventive Nutrition and Food Science
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• 제14권3호
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• pp.240-245
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• 2009

High-performance liquid chromatography (HPLC) was applied to determine the carotenoid composition of carrots during storage and cooking. Analyses were conducted immediately after harvest and 1, 2, 4, and 8 weeks after harvest. During the course of the storage, the carotenoid levels generally decreased, and this decrease was found to be greater during the first week for $\beta$-carotene (all-trans-$\beta$-carotene) and lutein, and during the second week for $\alpha$-carotene. Additionally, the amount of the $\alpha-$ and $\beta$-carotenes in carrot leaves changed slightly within the first 2 weeks of harvest when stored at $4^{\circ}C$. Specifically, the level of lutein, the main component of carrot leaves, increased from 233.8$\pm$11.7 to $346.2\pm26.7{\mu}g$/g DW during the first 2 weeks. In addition, the change in carotenoid contents was observed during the home-processing of one Korean cultivar. Carrots fried in oil showed the highest amount of $\beta$-carotene ($164.3\pm6.6{\mu}g$/g DW) and $\alpha$-carotene ($50.1\pm0.4{\mu}g$/g DW), while carrots that were prepared by sauteing, pressure-cooking in water and microwaving had the second highest levels. The greatest loss of in carotenoids occurred in response to boiling in water containing 1% NaCl, braising and baking. The content of lutein increased slightly after boiling in water containing 1% NaCl ($9.3\pm0.4{\mu}g$/g DW), while a loss in lutein occurred after preparation using other home-processing methods. A cis-isomer of all-trans-$\beta$-carotene, 13-cis-$\beta$-carotene, was present in detectable amounts in all processed samples, but not in raw roots. Another isomer, 9-cis-$\beta$-carotene, was detected in carrots that were prepared by boiling, frying and pressure-cooking.

• 한방재활의학과학회지
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• 제26권2호
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• pp.51-59
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• 2016

Objectives We studied long-term preservation in stability of a mixed preparation of distilled and 70% alcohol extracted Hwangnyunhaedok-tang pharmacopuncture to establish standards for expiration date and quality control. Methods Three lots of consecutively prepared Hwangnyunhaedok-tang pharmacopuncture were each tested in triplicate to a total 5 tests at 3 month intervals over a period of 12 months for analysis of appearance, pH, specific gravity, index component content, endotoxins, microbial sterility, residual organic solvents, heavy metals, and pesticides. Items with no difference by elapsed time were tested at the initial and final timepoints, and data of items with potential difference by elapsed time were analyzed for trends to establish individual quality control standards. Results All tested items were stable over the study period, and therefore the expiration date was set as 12 months. pH quality control standards were set as 3.66~5.69, and that of specific gravity as 0.802~1.203, respectively. In index component content standards, berberine was set at $4.96{\sim}8.98{\mu}g/vial$, baicalin at $6.47{\sim}10.31{\mu}g/vial$, and geniposide at $116.03{\sim}189.55{\mu}g/vial$, respectively. Standards for other items with no difference by elapsed time were set according to general Korean herbal medicine standards in the Korean Pharmacopoeia. Conclusions Manageable expiration date and quality control standards were established through long-term preservation testing of Hwangnyunhaedok-tang pharmacopuncture, furthering standardization of Korean medicine pharmacopuncture.

• 공업화학
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• 제24권5호
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• pp.471-475
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• 2013

이 연구는 젤라틴-신남산 접합체를 알긴산나트륨 마이크로스피어에 코팅하여 광 민감성 마이크로스피어를 제조하여 광 민감성을 관찰하였다. 광 민감성 마이크로스피어는 W/O (water-in-oil) 에멀젼법을 이용하여 알긴산나트륨 마이크로스피어를 만든 후 젤라틴-신남산 접합체를 알긴산나트륨 마이크로스피어 표면에 코팅시켜 제조하였다. 젤라틴-신남산 접합체의 합성은 젤라틴의 아미노 그룹과 신남산의 카복실 그룹 사이의 아미드화반응으로 결합하였다. 알긴산나트륨 마이크로스피어 표면의 젤라틴-신남산 접합체의 코팅은 SEM-EDS의 결과로 확인하였다. 또한 형성된 접합체에 결합된 신남산의 흡광도를 측정하여 알긴산나트륨 1 g당 젤라틴-신남산 접합체가 0.13 g이 코팅된 것을 확인했다. 코팅된 마이크로스피어를 SEM을 통해 마이크로스피어의 크기가 $10{\mu}m$인 것을 확인했다. 광 민감성의 관찰을 위해 365 nm와 254 nm 파장의 자외선을 조사하여 이량화 정도를 측정한 결과 이량화 정도가 49%와 28%였다. 마이크로스피어의 방출경향을 관찰하기 위해 모델약물로 FITC-dextran을 사용하여 알긴산나트륨 마이크로스피어에 봉입하여 방출실험을 진행하였고 그 결과 약 42%의 FITC-dextran이 방출되었다. 결과적으로 젤라틴-신남산 접합체가 코팅된 마이크로스피어는 광 반응성을 가지는 약물전달체로 사용될 수 있을 것이다.

• Journal of Acupuncture Research
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• 제33권4호
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• pp.109-119
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• 2016

Objectives : The aim of this study is to give a statistical basis for the characteristics of patients who received cooperative medical care after being referred from Western medical departments to the Department of Acupuncture and Moxibustion in a Korean medical hospital. Methods : The request records were searched for cooperative medical treatment at the Department of Acupuncture and Moxibustion in a Korean medical hospital between September 1st, 2011 and August 31, 2016, based on the Order Communication system(OCS). The records were reviewed and retrospectively analyzed according to the patient's general characteristics, the chief diagnosis code based on the 7th Korean standard classification of diseases(KCD-7) before and after the cooperative medical care in the Department of Acupuncture and Moxibustion, and the actual treatment measures which patients received as a result of the cooperative medical care. Results : Among the 2702 records, 1549 patients were included in the analysis. The male to female ratio was 1 : 1.17. Sexagenarians formed the highest age group and the number of patients whose age was over 50 was 1176(75.92 %). The surgery department requested the cooperative care from the department of Acupuncture and Moxibustion for the highest number of patients, 1194(77.08 %). When analysing specific medical departments, Neurosurgery, General Surgery, Neurology, Otorhinolaryngology, and Physical medicine and rehabilitation followed. The frequency of chief diagnosis code used before the cooperative medical care was in the order of I, C, G, S, and M code, from highest to lowest. The order of the codes after the cooperative medical care was the same. Acupuncture treatment was the most frequently-used measure after the cooperative medical care. Following were infrared, moxibustion, transfer, herbal acupuncture, cupping, electroacupuncture, and so on. Conclusion : This study provides a statistical basis for the demands placed on the Department of Acupunture and Moxibustion for cooperative medical care with the Western medical department. Based on the present condition of cooperative medical care, more preparation and effort is required for its activation.

• 한국버섯학회지
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• 제11권2호
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• pp.53-62
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• 2013

A total of 35 phosphate solubilizing bacterial strains were isolated from waste mushroom bed of Agaricus bisporus in Buyeo-Gun, Chungnam and screened for the production of indole acetic acid (IAA). The best IAA producing strain was identified as Pantoea rodasii using 16S rRNA analysis. In addition to the IAA production, this strain could act as an efficient phosphate solubilizer (1100 ${\mu}g$ $ml^{-1}$ after 5 days of incubation) also. The selected strain was cultured under different conditions in order to assess the optimum conditions for maximum IAA production. The nutrient broth (NB) medium was recorded as the best medium, where the maximum IAA production (229 ${\mu}g$ $ml^{-1}$) was recorded at the start of stationary phase (12 hours after inoculation) of the bacteria growth. The performance of the strain was found to be maximum at the temperature of $30^{\circ}C$ followed by $25^{\circ}C$. IAA production was found to be increased with increasing tryptophan concentration (from 0.1 to 0.6%), however beyond this limit, a slight reduction in IAA production was observed. The strains' ability to produce IAA was further confirmed by extraction of crude IAA and subsequent TLC analysis. A specific spot from the extracted IAA preparation was found corresponding with the standard spot of IAA with same $R_f$ value. The results of HPLC analysis conducted in identifying and quantifying the IAA production more precisely, are in agreement with the results of the assessment done with colorimetric method. As revealed by the results of the pot experiment, the isolated strain could significantly enhance the growth (as measured by shoot and root growth) of mung bean plants compared to that of non-inoculated plants. Therefore it can be concluded that the present strain, Pantoea rodasii has great potential to be used as bio-inoculants.

• 한국식품영양과학회지
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• 제39권3호
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• pp.406-413
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• 2010

황기 추출액의 수율 및 생리적 기능성을 향상시키기 위하여 황기에 효소를 첨가하여 시간별로 가수분해 시킨 후 가열처리하고 여과시킨 추출액에 대하여 이화학적, 항산화 활성 및 관능적 평가를 측정하였다. 효소처리 황기 추출액의 $^{\circ}Brix$의 변화는 대조군보다 ClariSEB 및 Fungamyl 처리 시 증가하였으며 pH 및 산도는 효소처리에 의하여 약간 낮은 pH와 높은 산도를 보였다. 색상변화에서는 ClariSEB 및 Fungamyl 처리 시 lightness가 증가하였으며 redness와 yellowness는 감소하였다. 환원당, flavonoid 및 polyphenol 화합물 함량은 효소처리에 의하여 함량이 증가하였으나 ascorbic acid는 대조군과 유사하였다. 황기 추출액의 지질과 산화 억제능은 효소처리 시 억제능이 약간 증가하는 것으로 나타났고 DPPH 항산화 활성, ABTS 항산화 활성 및 금속이 온 제거능에서는 ClariSEB 및 Fungamyl 처리 시 증가하였으나 환원력은 대조군과 유사하였다. 또한 황기 추출액에 대한 관능검사 결과 전반적으로 효소처리를 하지 않은 대조군에 비하여 효소처리 시 기호도 면에서 우수한 것으로 나타났다.

• 분석과학
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• 제24권1호
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• pp.38-44
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• 2011

본 연구는 제주지역에서 생산되는 세 종류의 물과 서울지역에서 사용되고 있는 수돗물 등 네 종류의 물을 전탕용수로 하여 중요 한약재인 대황으로부터 활성성분을 추출하고 용수 중의 미네랄이 대황활성성분 추출에 미치는 효과에 대하여 비교 분석하였다. 유도결합플라즈마방출분광기와 유도결합플라즈마질량분석기를 이용하여 30여종의 미네랄과 다수의 음이온을 분석하였다. 각 전탕용수로 대황을 추출하고 그 추출액의 일부를 증발시켜 총 추출량을 구하고, 또한 HPLC를 이용하여 추출액으로부터 대황의 생리활성 성분을 분석하였다. 용수 간 총 추출량과 대황 성분함량의 차이 검정을 위하여 Kruskal-Wallis 검정을 시행하였고, 미네랄, 음이온, 총 추출량 및 성분함량과의 관계분석을 위하여 다중요인분석을 시행하였다. 분석결과 용수 중의 미네랄 함량은 대황의 총 추출량 및 성분 추출량과 높은 상관관계가 있는 것으로 나타났다.

• 동의신경정신과학회지
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• 제19권1호
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• pp.125-146
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• 2008

Objectives : The purpose of this study is to suggest for the following experimental study of dementia by reviewing recent oriental medicine journals that have been published since 2000. Methods: We have investigated various types of studies in relation to dementia through 90 articles that have been published from 2000 to 2007 in recent oriental medicine journals were registered Korea research foundation. Results and Conclusions : 1. Since 2000, 88 articles in relation to dementia have been published and almost of them are herbal medicine-centered studies. Also they show a tendency to increase every year. The journal of oriental neuropsychiatry carries the highest number of studies in relation to dementia. 2. According to the experimental paper, there are 30 cases of using herb simplexes, 48 cases of herb-combined prescription, and 10 cases of other ways. Especially 7 cases of using herb-combined prescription relation to Sasang constitution are all for the Taeumin. 3. There are 85 cases of Animal and cellular experimental, 60 cases of using pathologic model induced cytotoxic activity, a case of using L-NAME, 3 cases of 192 saporin, 4 cases of ibotenic acid, 10 cases of focal cerebral ischemia, 3 cases of alcohol-administered, and one case of natural degradation. 4. Moms water maze, Radial arm maze Passive avoidance learning model were using for examining learning and memory of model animal 5. We propose that following studies of dementia are to he investigated of the applied method of using siRNA with tranceduced gene, sample preparation by water-soaking, oriental medical diagnosis, standardization of differentiating symptom and herb simplexes, building the database by classified prescriptions, and experiment model which are based on precise examining mechanism with cell line as like mouse H19-7 hippocampus, rat HT22 hippocampus, astrocyte, microglia, using the model of animals at APP, PS1, BACE, CT99/PS1, APOE4, Tau, APP/PSI/Tau