• Journal of the Korean Society of Food Science and Nutrition
• /
• v.39 no.11
• /
• pp.1660-1665
• /
• 2010

To obtain data for the standardization of manufacturing method of red ginseng extract pouch products, saponin and physico-chemical properties of 44 Korean red ginseng extract pouch products were analyzed. The concentration of total ginsenoside contents were 5.5~185.7 mg/100 mL. Distribution of the contents of ginsenoside $Rg_3$, $Rg_2$, $Rh_1$, and $Rh_2$ known to have anticancer effect are as follows: $Rg_3$ is 1.6~46.3 mg/100 mL, $Rg_2$ is 0~22.0 mg/100 mL, $Rh_1$ is 0~4.3 mg/100 mL and that of $Rh_2$ is 0~20.4 mg/100 mL, respectively. The anti-diabetic effect of ginsenoside $Rb_2$ and Re distribution of contents were 0~10.8 mg/100 mL and 0~7.0 mg/100 mL, respectively. Among the other saponins, exhibited content to distribution of ginsenoside $Rb_1$ was 0~25.2 mg/100 mL, Rc was 0~12.5 mg/100 mL, Rd was 0~11.3 mg/100 mL, Rf was 0~5.9 mg/100 mL and $Rg_1$ was 0~4.4 mg/100 mL. Results of physicochemical characterization showed total sugar content of 226.6~3,102.9 mg/100 mL, total soluble solids content $1.4\sim9.5^{\circ}Bx$, turbidity 82.2~100.0%, pH in the range of 4.1 to 5.0, respectively. In approximately 50% of collected domestic ginseng extract pouch products (21~24 items), ginsenoside $Rb_1$, $Rb_2$, Rc, Rd, Re and $Rg_1$ were not detected, and saponin content of each product appears to differ greatly. Results indicated that standardization of production methods and standards set for red ginseng extract pouch products in Korea is needed.

• Journal of Mushroom
• /
• v.11 no.1
• /
• pp.41-45
• /
• 2013

This study was carried out to improve standardization of agricultural products and investigate quality changes during preservation at various treatments. The standardization does much to improve merchantable quality, distribution efficiency and fair dealings by shipping of the standard agricultural products. Mushrooms notified as the standard are five; Pleurotus ostreatus, Pleurotus eryngii, Flammulina velutipes, Agaricus bisporus and Ganoderma lucidum. But many farmers are suffering from strict standards. Therefore, modification of these standards is required to fit farmhouse situations. Fruit-body weight of A, B and C grades of the marketed Agaricus bisporus was 19.3g, 12.2g and 10.4, respectively. Average pileus diameter of A grades was 43.3mm but B and C grades did not show significant difference. Average stipe length of A, B and C grades was 9.8mm, 13.1mm and 11.6mm, and stipes thick was the highest in A grades. The weight loss rate of stipe cutting of Agaricus bisporus was 12.6% in harvested mushrooms and the rate of stipe cutting length was 60.8%. The diameter of Agaricus bisporus stored for 5 days was 3.5~4.5cm but decreased rapidly in 15 days. The weight loss rate of the high temperature samples lowered rapidly than that of the low temperature samples. Conversely, the L value of the low temperature samples was higher than that of the high temperature samples.

• Journal of Acupuncture Research
• /
• v.25 no.2
• /
• pp.129-138
• /
• 2008

Objectives : The moxibustion is the method in using the heat stimulation made of attached and burned a moxa or other herbal materials on a healing point or acupuncture point and the chemical stimulation of a resin made from burning them. We need to standardize the characteristics of moxa combustion in order to get more systematic and objective result in operation mechanism and effects and then get more clinical abilities in these fields. Methods : In this study, using of labview system on the moxibustion. 1. we studied relation the size of barley and jujube seed with the moxa cone's peak combustion temperature and then measured and compared the moxa cone's peak combustion temperature by tonification and sedation method. 2. we measured the peak combustion temperature of indirect moxibustion. Results & comclusions : 1. When we measured a direct moxibustion's combustion temperature, the jujube seed sized moxa cone's peak temperature was higher than the barley sized moxa cone's when it burned and the time to peak temperature of the barley sized moxa cone was shorter than the jujube seed sized moxa cone's. 2. When the direct moxibustion was burned by the tonification and sedation method, the sedation method's peak temperature was higher than the tonification method's, the tonification's time to peak temperature was shorter than the sedation method's. 3. When we measured the temperature of the moxa combustion in the kinds of sliced herbal materials, the peak temperature of indirect moxibustion with a ginger when it sliced a 1.3mm size and a 1.5mm size was degreed within $40^{\circ}C$ to $52^{\circ}C$ and the peak temperature of indirect moxibustion with a garlic when it sliced a 1.7mm size was degreed within $46^{\circ}C$ to $62^{\circ}C$.

• Korean Journal of Environmental Agriculture
• /
• v.29 no.1
• /
• pp.33-38
• /
• 2010

To improve the existing nitrogen recommendation method based on chemical properties of soils and to establish new recommendation rates of nitrogen fertilizer due to different types of soils, the application rates of nitrogen fertilizer were examined in different soils of 12 experimental rice paddy fields. The application rates of nitrogen fertilizer estimated by soil-testing were higher than the rates of nitrogen standard recommendation that has been used. The application rates for minimum rice productivity ranged from a low of 168 kg/10a in sandy soil to a high of 315 kg/10a in saline soil. Amounts of nitrogen absorption in rice were proportional to the application amounts of nitrogen fertilizer in soils. Nitrogen use efficiency was the highest, 36.7%, in immatured paddy field and it was inversely proportional to the application amounts of nitrogen. the rice tasty value was the highest in the soils without nitrogen application, and also it was the lowest in the saline soils with or without nitrogen application. As comparing with the nitrogen application rates obtained by the existing nitrogen recommendation method, optimal nitrogen application rates estimated by the standardization of nitrogen application efficiency rate, environmental index, and rice quality were 1.0 fold in the well adapted soil and sandy soil fields, 0.92 fold in the immatured soil field, and 0.83 fold in the saline soil field.

• Journal of the Korean Wood Science and Technology
• /
• v.36 no.6
• /
• pp.69-76
• /
• 2008

To estimate removal ability of harmful gas by charcoal, we carbonized Red oak (Quercus mongolica Fischer) wood and Larch (Larix leptoepis) bark at $300^{\circ}C$, $600^{\circ}C$ and $900^{\circ}C$ for 1 hour. Gas removal ratios was increased with carbonization temperature but there is no difference between wood and bark charcoal. In the case of bad smell and VOC gas, woody charcoal including bark charcoal carbonized at $300^{\circ}C$ showed low removal ratio, less than 50%, whereas woody charcoals which was carbonized at more than $600^{\circ}C$ reached almost 100% removal ratio to bad smell gas such as trimethylamine, methymercaptan, hydrogen sulfide, and to VOC such as benzene, toluene, xylene in $5{\ell}$ tedler bag with each gas of 100 ppm. It was thought that because charcoals carbonized at high temperature, for example, $600^{\circ}C$ or $900^{\circ}C$ have enough specific surface area to adsorb gas of 100 ppm. Moreover these charcoals rapidly removed almost gas in 10 minutes. However, acetylene, $SO_2$ and $NO_2$, charcoals which was carbonized more than $600^{\circ}C$ and which showed high removal ratio had low gas removal ratio of 40% at even 4 hours adsorption. It was concluded that adsorptive ability of woody charcoal was mainly influenced with carbonizing temperature, so that different charcoals carbonized at different temperature brings different gas removal ratio because these charcoals have not only different physical factor such as specific surface area but different chemical characteristic such as functional group, expected.

• Korean Journal of Environmental Agriculture
• /
• v.14 no.1
• /
• pp.82-87
• /
• 1995

The standardization of test procedures and reproducibility of the toxicity data are prerequisite for the toxicity testing with the earthworm culturing in the laboratory. No in-depth study on culturing conditions of earthworms has been conducted in Korea, even of massive cultural practice is common for composting and production of biochemicals. The earthworms, Lumbricus rubellus and Eisenia foetida, were cultured in three kinds of artificial soil substrates(I, II and III) based on the OECD Guideline, which consist of different ratios of components (sand, sphagnum peat and kaolinite), and fed with a mixture of grain powders. During the period of culturing, the body weight and reproduction parameters were measured. L. rubellus showed the best results for increasing body weight and cocoon production in the artificial soil substrate(I) compared with E. foetida. The cocoon production was significantly high in both species cultured in the artificial soil substrate(I) among the three kinds of soil substrates, but the cumulative cocoon production of L. rubellus was 11 cocoon per worm compared with 3.7 cocoons per worm of E.foetida. L. rubellus, therefore, was more prolific than E. foetida in these culture schemes. The cumulative mortality in both species was less than 10%, and the number of juvenile worms per cocoon ranged from 1.5 to 2.3 and thus did not show any relationships with soil substrates or species. From these data, the culture of L. rubellus in the laboratory could be standardized, but for E. foetida, further study would be necessary to establish the optimal growth conditions in the laboratory.

• Applied Biological Chemistry
• /
• v.21 no.1
• /
• pp.16-21
• /
• 1978

In order to determine optimum condition for the Ko-Choo-Jang (red-pepper-paste) processing, chemical analysis, mixed ratio, and sensory teat, resulted as follows. 1. The best nutritional value could be obtained after three hours at $60^{\circ}C$, which proved to be the optimum temperature in koji digestion of starch paste. 2. The component ratio of wheat flour to koji-powder was two to one giving the best digestion. 3. The mixing ratio of salt and red-pepper-powder and flour-koji was determined as 1 : 1.5 : 3 by sensory tests. 4. The highest reducing sugar content appeared in a digested mixture using glutinous rice as a starch source and the reducing sugar increased continuously with decreasing, total sugar content in almost every mixture of starches. 5. As a starch source, glutinous rice powder produced the highest total sugar in the beginning stages, however, after 10 day's curing produced less sugar than rice powder. 6. The order of total nitrogen content in the cured paste was recorded as wheat-flour, rice-powder, corn-powder, glutinous-powder, barley-powder, and sweet potato-starch. 7. Amino-nitrogen was increased with curing and the highest, value was observed in the case of wheat flour. 8. In sensory test, Ko-Choo-Jang made of glutinous rice-powder resulted in the best taste.

• Journal of the Korean earth science society
• /
• v.32 no.3
• /
• pp.306-323
• /
• 2011

The purpose of this study is to analyse the origin of the terms for well-known minerals and rocks in South Korean, North Korean, English, Chinese and Japanese. All of the terms for mineral and rock have been standardized in English and Chinese, Whereas not all of the terms are standardized yet in Japanese, North Korean and South Korean. Although many Korean researchers have recognized the fact and tried to standardize the terms, most of the terms for minerals and rocks have been used without any research conducted on them, which made it impossible. The terms for minerals were mainly made based on some of 28 geologic properties: chemical composition, color, shape and material. The terms for rocks were mainly originated from some of their 30 geologic properties: mineral composition, origin of rock, material and surface. 23 of the 124 English terms were named after the names of men or location, Whereas only 3 terms were originated from a name of place in the Eastern countries. In the Eastern countries, the terms for some minerals or rocks often consist of more complex geologic properties, compared with English terms for the same ones. For the minerals with complex geological properties, in the Eastern countries, there are 28 terms on average, which is much more than 2 in English. There are 9.25 terms in average for the rocks with complex geological properties in the Eastern while only 5 terms exist in English. Some of the Korean terms are very difficult for students to recognize what they are because the terms were originated from Japanese or English terms, which were translated into Korean without consideration of Korean contexts. Therefore the terms of rocks and minerals need to be discussed about their meaning and relevance.

• Korean Journal of Clinical Laboratory Science
• /
• v.49 no.4
• /
• pp.359-365
• /
• 2017

There is greater standardization of quality control for microscopic examination of urine than for physicochemical test. In this study, we investigated whether it is possible to control the sediment accuracy by microscopic examination through the real thing by preserving the essential sediment with glutaraldehyde, which is required for the rationality of sediment quality control. A urine specimen was prepared using 2.5% glutaraldehyde as a preservation solution. Samples treated with urine preservatives confirmed the morphological deformation of the cells for four weeks at intervals of one week and confirmed whether they should be preserved for 4 weeks thereafter. After preparing the required sediment slide, two more slides were produced; one was stored in a refrigerator for, and the other was stored at room temperature. The morphological deformation of the specimen was confirmed. Glutaraldehyde has the effect of preserving the refrigerated essential sediments and storing them for up to 8 weeks, refrigerated storage after slide production, stabilized by 3 days. Moreover, after treatment with preservatives, the production of the slide and comparison between the measured values between the laboratories and examiners showed a low consistency. In conclusion, we showed that the urine sediment components can be preserved, and it can be used for quality control and education through real objects.

• Korean Journal of Food Science and Technology
• /
• v.31 no.6
• /
• pp.1427-1433
• /
• 1999

The Microbiological, chemical and sensory analyses were carried to evaluate the quality of commercial salted and fermented seafoods and to establish a standardization. The results showed that amino nitrogen(AN) and volatile basic nitrogen(VBN) contents were appropriate in evaluating the quality of shrimp jeotkal. In the range of $150{\sim}300\;mg%\;and\;25{\sim}70\;mg%$, AN and VBN contents were highly correlated to sensory scores, respectively. In the case of squid jeotkal, pH and VBN contents were appropriate to evaluate quality. The coefficients of the correlation between pH and sensory evaluation was 0.84 and the sensory acceptability was high and above pH 6.0. In addition, the coefficients of the correlation between VBN contents and sensory evaluation was 0.95, and the sensory acceptability was high but below 30 mg%. In the case of shell-fish jeotkal, the coefficient of the correlation between VBN content and sensory evaluation was 0.94, and sensory acceptability was high but below 40 mg%.