• Journal of the Korean Society of Food Science and Nutrition
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• v.40 no.6
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• pp.798-803
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• 2011

We investigated the changes in chemical composition and antioxidant activity of Deoduk (Codonopsis lanceolata) and Doragi (Platycodon grandiflorum) with heating. Deoduk and Doragi were heated to $110\sim150^{\circ}C$ for 2 hours. The total polyphenol content of Deoduk and Doragi reached high values of 6.31 and 7.34 mg/g, respectively, at $150^{\circ}C$. The total polyphenol content of raw Deoduk and Doragi were 0.60 and 0.59 mg/g, respectively. The DPPH radical scavenging activity ($IC_{50}$) of Deoduk and Doragi decreased from 13.94 and 6.83 mg/mL, respectively, in raw samples to 0.81 and 0.94 mg/mL, respectively, in samples heated to $150^{\circ}C$. The ABTS radical scavenging activity of Deoduk and Doragi increased from 0.43 and 0.21 mg AA eq/g, respectively, in raw samples to 3.55 and 4.83 mg AA eq/g, respectively, in samples heated to $150^{\circ}C$. The reducing power of raw Deoduk and Doragi was 0.1 and 0.06, respectively, which was increased to 0.54 and 0.50, respectively, in samples heated to $150^{\circ}C$. Fructose content decreased after heating to $130^{\circ}C$. The sucrose content of the samples increased slowly with heating up to $120^{\circ}C$, but was not detected at warmer temperatures. The organic acid and 5-HMF of the samples increased gradually with increasing temperature.

• Asian-Australasian Journal of Animal Sciences
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• v.10 no.4
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• pp.398-401
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• 1997

A caecal fermentation study was conducted in 30 Angora rabbits equally placed under five whole diets (75 concentrate : 25 roughage) supplemented with processed Neem (Azadirachta indica) kernel meal (NKM ; 2% urea or 1.5% NaOH, W/W), replacing isonitrogenously either at 50 or 100% level of deoiled peanut (Arachis hypogea) meal, for 18 wk period. The total volatile fatty acids level was depressed (p < 0.05) in all the experimental groups (0.02 to 0.04 mEq/g) and ammonia-nitrogen was lowest (p < 0.05; $24.9{\mu}mol/g$) in rabbits fed NaOH treated NKM supplemented diet. Enzyme activity (unit/g) of carboxy methyl-cellulase, ${\alpha}$-amylase, protease and urease exhibited much variation and did not differ significantly. Hence, the results could not confirm a possible adverse effect of feeding NKM on caecal fermentation.

• Journal of fish pathology
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• v.6 no.2
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• pp.177-189
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• 1993

1. For the prophylaxis of ceroidosis Vitamin E and C supplemented diet(POV 90.4mEg/kg) was used for flounder culture during 80 days. 2. The supplementation of Vitamin E and C with our tested concentrations on the high POV diet supported almost normal growth of flounder. It is very much comparable with the abnormal growth of flounder fed the diet of high POV. 3. The best prophylactic effect were appeared the high POV diet supplemented with Vitamin E 1mg/g diet and Vitamin C 2IU/g diet. These results were analyzed by histological observation of tissues.

• Clinical and Experimental Pediatrics
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• v.45 no.6
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• pp.790-795
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• 2002

Sporadic reports of hypernatremic dehydration in breastfed newborn infants have appeared in medical literature for at least 3 decades. We report the first case of hypernatremic dehydration resulting from inadequate breast-feeding in Korea. A 14-day old baby, born to a mentally retarded mother, was transferred to our hospital with a body weight loss of 460 g since birth(17%) and a serum sodium(Na) level of 179 mEq/L, after initial hydration at another hospital. On admission, a cardiac murmur was heard and an enlarged liver was palpated. Cardiac ultrasonogram revealed ventricular septal defect and ostium secundum atrial septal defect. During hydration, a seizure-like attack developed. Serum Na decreased to 135 mEq/L on the 5th day of admission. Brain ultrasonography and brain magnetic resonance image revealed no remarkable abnormalities. Electroencephalography was normal. She suffered from prerenal azotemia, hyperglycemia and disseminated intravascular coagulation at admission but was treated successfully. Heart failure was also controlled with dobutamine, diuretics and digoxin.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.8 no.6
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• pp.1572-1578
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• 2007

The specified wastes consist of waste acid, waste alkali, waste oil, waste organic solvent, waste resin, dust, sludge, infectious waste, and others. Among these specified wastes, a great portion is liquid phase wastes. The purpose of this study is to develop the high temperature and high pressure (HTHP) treatment system for decomposition of the liquid phase specified waste (LPSW). For this, we analyzed the physical and chemical properties of the LPSW such as density, proximate analysis, ultimate analysis, heating values, and designed 0.3 ton/day HTHP treatment system. The LPSW tested in this experiment were prepared by adding TCE(trichloroethylene) and toluene to liquid phase waste which was brought into the commercial waste treatment company. The average density of waste oil (25 samples), waste resin (5 samples), and waste solvent (12 samples) was 0.99 g/mL, 0.91 g/mL, and 0.93 g/mL, respectively. And the average lower heating value of waste oil, waste resin, and waste solvent was 8,294 kcal/kg, 5,809 kcal/kg, and 7,462 kcal/kg, respectively. The DRE (Destruction & Removal Efficiency) of TCE and toluene were 99.95% and 99.73% at atmospheric pressure conditions and that were 99.99% and 99.82% at pressurized conditions, respectively. These results showed that TCE/toluene mixtures were properly decomposed over about 99.73% of DRE by the HTHP treatment system and pressurized conditions were more effective to destroy those pollutants than atmospheric pressure conditions. Also these systems could be directly applied to industries which try to treat the liquid phase specified waste within the regulation limit.

• Journal of The Korean Society of Clinical Toxicology
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• v.11 no.1
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• pp.28-30
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• 2013

A 66-year-old male with chronic alcoholism presented with tremor, gait disturbance, memory impairment, insomnia, decreased appetite, and confusion. The patient had been taking lithium daily for treatment of bipolar disorder. Brain CT showed no specific abnormality, and serum lithium and ammonia levels were 3.63 mEq/L (therapeutic range, 0.6~1.2 mEq/L) and $85{\mu}g/dL$ (reference range: $19{\sim}54{\mu}g/dL$), respectively. Therefore, the initial differential diagnosis included chronic lithium intoxication, hepatic encephalopathy, Wernicke encephalopathy, or alcohol withdrawal syndrome. Even with the provision of adequate hydration, the patient's neurologic status did not show improvement, so that lactulose enema, thiamine replacement, and continuous venovenous hemodiafiltration (CVVHDF) were started on the third admission day. By the fifth admission day he had made a rapid neurologic recovery, and was discharged on the 20th admission day. Therefore, CVVHDF might be a treatment for patients with chronic lithium intoxication, because, even if serum lithium concentration is normal, lithium concentration in the brain may be different from that of the serum.

• The Journal of Internal Korean Medicine
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• v.42 no.5
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• pp.923-930
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• 2021

Objectives: The purpose of this study was to examine the effect of combined Korean medical treatment on chronic headache with digestive symptoms. Methods: We collected data from October to December 2020 and evaluated the efficacy of combined Korean medical treatment using the Korean Headache Impact Test-g (KHIT-6), European Quality of Life Five Dimensions (EQ5D) Scale, and Numerical Rating Scale (NRS) at admission, after two weeks of hospitalization, and on discharge. Results: At the end of treatment, the patient had increased EQ5D and reduced KHIT-6 and NRS scores. Conclusions: After the combined Korean medical treatment, the patient showed improvement, suggesting the efficacy of treatment.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.48 no.6
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• pp.864-875
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• 2015

This study investigated the sanitary characteristics of commercial salted semi-dried convict grouper Epinephelus septemfasciatus (SSD-CG) and longneck croaker Pseudotolithus typus (SSD-LC) and suggested standards for salted semi-dried fish (SSD-F), based on the domestic standards for salted mackerel (Scomber japonicus or kwamegi) and salted dried yellow corvenia (Pseudosciaena manchurica), and sanitary characteristics of commercial SSD-F. For the commercial SSD-CG and SSD-LC, respectively, the moisture content ranged from 64.6-76.1 and 65.7-77.5%, salinity from 2.7-8.2 and 1.5-4.9%, volatile basic nitrogen (VBN) from 22.1-88.2 and 13.5-87.4 mg/100 g, peroxide value (POV) from 17.2-195.0 and 28.5-190.2 mEq/kg, and viable cell counts from 6.1-8.4 and 5.4-7.2 log (CFU/g). No Escherichia coli was detected in six kinds of SSD-CG or three kinds of SSD-LC. The standard for controlling the quality of SSD-F is the moisture content (>68%), salinity (>3%), VBN content (>50 mg/100 g), POV (>60 mEq/kg), viable cell counts (>$10^6$ CFU/g), E. coli (>MPN/100 g), and others. Using the established standards, no commercial SSD-F passed. The chemical, microbial, and other results for commercial SSD-F suggest that provisions for controlling the quality of high-quality SSD-F should be established.

• Korean Journal of Food Science and Technology
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• v.29 no.3
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• pp.400-406
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• 1997

Chemical composition and antimicrobial activity of Houttuynia cordata Thunb. were investigated to develop a natural food preservative from it. Aspartic acid, glutamic acid, glycine and arginine were major amino acids of Houttuynia cordata Thunb., but were present in a trace amount. Free sugars were composed of glucose, fructose, sucrose and maltose and major fatty acids were linolenic acid, linoleic acid, oleic acid, and palmitic acid. Mineral elements were potassium, calcium, magnesium, iron, zinc, and copper. Antimicrobial activities were shown in acidic, neutral and phenolic fraction of Houttuynia cordata Thunb., but not in basic fraction. Among the four fractions, neutral fraction showed the strongest antimicrobial activities against microorganisms tested, such as Pseudomnas aeruginosa, Micrococcus luteus, Bacillus subtilis, Aspergillus parasiticus and Aspergillus flavus. Minimum inhibitory concentration (MIC) and minimum lethal concentration (MLC) of the neutral fraction varied according to microoganisms tested. The lowest values of MIC (0.0075 g eq./mL) and MLC (0.10 g eq./mL) were obtained from Pseudomonas aeruginosa.

• Transactions of the Korean Society of Automotive Engineers
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• v.25 no.2
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• pp.157-166
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• 2017

The Fuel Cell Electric Vehicle(FCEV) is recently evolving into a new trend in the automobile industry due to its relatively higher efficiency and zero greenhouse gas(GHG) emission in the tailpipe, as compared to that of the conventional internal combustion engine vehicles. However, it is important to analyze the whole process of the hydrogen's life cycle(from extraction of feedstock to vehicle operation) in order to evaluate the environmental impact of introducing FCEV upon recognizing that the hydrogen fuel, which is used in the fuel cell stack, is not directly available from nature, but instead, it should be produced from naturally available resources. Among the various hydrogen production methods, ${\sim}54.1%^{8)}$ of marketed hydrogen in Korea is produced from naphtha cracking process in the petrochemical industry. Therefore, in this study, we performed a well-to-wheels(WTW) analysis on the hydrogen fuel cycle for the FCEV application by using the GREET program from the US Argonne National Laboratory with Korean specific data. As a result, the well-to-tank and well-to-wheel GHG emissions of the FCEV are calculated as 45,638-51,472 g $CO_2eq/GJ$ and 65.0-73.4 g $CO_2eq/km$, respectively