• Korean Journal of Fisheries and Aquatic Sciences
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• v.33 no.6
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• pp.489-495
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• 2000

The 185 ribosomal RNA gene (185 rDNA) of the marine alga Porphyra sp. 723 (Bangiales, Rhodophyta) was amplified using the polymerase chain reaction and its sequence was analysed. The Porphyra species was a summer strain collected on rocks in upper intertidal zone at Ikidae, Pusan on 23rd July 1999. The fronds were $1{\~}5 cm$ long, monostromatic, and orbicular or ovate shaped, They had spinulate processes at margin of the frond, Comparison of this 185 rDNA sequence with the other Forphyra species indicates that Porphyra sp. 723 has the same 185 rDNA sequence derived from Porphyra suborbiculata (NCBI access number; AB 013180) except one base pair substitution in 2327 base pairs.

• Ocean and Polar Research
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• v.36 no.3
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• pp.247-254
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• 2014

In our continuing study on the antioxidant activity of Polysiphonia stricta, its crude extract was fractionated into n-hexane, 85% aqueous methanol (85% aq.MeOH), n-butanol (n-BuOH), and water fractions according to solvent polarity. The solvent fractions were evaluated for their potential to inhibit lipid peroxidation and reactive oxygen species (ROS) production in HT 1080 cells. The n-BuOH fraction most strongly inhibited both lipid peroxidation and ROS production in HT 1080 cells. The n-BuOH fraction was further separated by repeated silica gel column chromatography and RP-HPLC to give methyl aconitates (2 and 3). The chemical structure of isolated compounds was determinated by NMR spectral analysis.

• The Journal of Internal Korean Medicine
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• v.38 no.5
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• pp.576-582
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• 2017

Objectives: Hormone replacement therapy may relieve many symptoms of menopause; however, hormone replacement therapy may increase the risk of breast cancer, stroke, and dementia. This case study describes the effect of Hoechunboeum-tang on the menopausal disorder of hot flashes, which has been well documented as a cause of distress to patients undergoing menopause. Methods and Results: Two female patients suffering from severe hot flashes related to menopausal disorders were administered the herbal medicine, Hoechunboeum-tang. Measurements included hot flash frequency over a 24 hour period, hot flash severity (visual analogue scale), and hot flash-related daily interference and were recorded during the last week before herbal medicine and again after 7 and 15 days of herbal treatment. The patients were asked about their hot flash symptoms 6 months later and both reported that the symptoms had been successfully reduced after herbal treatment and were still reduced after 6 months. Conclusions: Hoechunboeum-tang could have a beneficial effect on menopausal disorder with hot flashes.

• Journal of Oriental Neuropsychiatry
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• v.14 no.2
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• pp.207-212
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• 2003

Social phobia is a symptom that is characterized as a feeling anxiety and fear in front of others in social situations. The patient of our hospital is 34-years-old man who has symptoms such as avoiding other people, being flushed of his face and trembling of his hands when he meets other person. Thus, he has been treated by applying acupuncture treatment, taking herb medicine, and Giungoroen & Kyungjapyungji of the oriental psychotherapy. In 3 months, his condition of this disease got improved. This case suggested one approach for the treatment of this disease and we consider that the oriental psychotherapy such as Giungoroen and Kyungjapyungji is useful in treatment of this disease.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.43 no.2
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• pp.66-71
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• 2011

Biocomposites were fabricated with biodegradable polymers and natural fibers. Biocomposites have benefits of low cost, low density, and biodegradability over inorganic fiber composite, and give comparable strength properties. Hydrophobic polymer used for sizing in paper industry, AKD (Akenyl Keten Dimer), was applied to natural fibers, red algae fibers (RAF) in this study, to make fiber surfaces more compatible to hydrophobic nature of matrix polymers. Composites with RAF, kenaf, glass fibers, and carbon fibers have been fabricated by a compression molding method and their thermo-mechanical properties have been studied. Also, the thermal dimensional stability test was done from at 30 to $100^{\circ}C$. The storage moduli and the thermo-mechanical stabilities of polypropylene and poly lactic acid based biocomposites were improved by reinforcing with the RAF and much more with AKD treated fibers. Dimensional stability of biocomposite was also markedly improved by AKD pretrement on RAF.

• Polymer(Korea)
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• v.30 no.5
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• pp.367-372
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• 2006

Electrochromic materials based on conducting polymers with pendant chromophores as well as their electrochromic properties are described. The conducting polymers described aye polypyrrole, polythiophene, poly(3,4-ethylenedioxythiophene), poly (cyclopentadithiophene), and poly (1,4-bis [2- (3,4-ethylenedioxy) thienyl] benzene). The chromophores described are viologen and perylenetetra-carboxylic diimide. When the wavelength ranges of absorption of the conducting polymer and the chromophore aye not overlapping, multiple electrochromism was achieved. When the wavelength ranges are largely overlapping, higher contrast was achieved. An easy method for prediction of the film thickness for maximum contrast of a given electrochromic material is also described.

• Journal of the Korean Society of Food Science and Nutrition
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• v.34 no.8
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• pp.1293-1296
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• 2005

Nitrite plays an important role in the formation of carcinogenic nitrosamine. In order to effectively inhibit the formation of carcinogenic nitrosamine in food and biological systems, scavenging of residual nitrite is necessary. In screening test of nitrite-scavenging effect of seaweed, The methanol extract from Phaeophyta was more effective than those from Rhodophyta and Chlorophyta. Among the brown algae family, Laminariaceae, A. cribrosum (90.4$\%$) and E. cava (80.1$\%$), E. stolonifera (79.0$\%$) that belong to genus Ecklonia showed marked nitrite-scavenging effect at pH 1.2. Furthermore, these algae showed potent reducing power and radical scavenging activity. The nitrite-scavenging effect was correlated with level of reducing power.

• Transactions of the Korean hydrogen and new energy society
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• v.23 no.4
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• pp.397-403
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• 2012

Galactose, an isomer of glucose with an opposite hydroxyl group at the 4-carbon, is a major fermentable sugar in various promising feedstock for hydrogen production including red algal biomass. In this study, hydrogen production characteristics of galactose-glucose mixture were investigated using batch fermentation experiments with heat-treated digester sludge as inoclua. Galactose showed a hydogen yield compatible with glucose. However, more complicated metabolic steps for galactose utilization caused a slower hydrogen production rate. The existence of glucose aggravated the hydrogen production rate, which would result from the regulation of galactose-utilizing enzymes by glucose. Hydrogen produciton rate at galactose to glucose ratio of 8:2 or 6:4 was 67% of the production rate for galactose and 33% for glucose, which could need approximately 1.5 and 3 times longer hydraulic retention time than galacgtose only condition and glucose only condition, respectively, in continuous fermentation. Hydrogen production rate, Hydrogen yield, and organic acid production at galactose to glucose ratio of 8:2 or 6:4 were 0.14 mL H2/mL/hr, 0.78 mol $H_2$/mol sugar, and 11.89 g COD/L, respectively. Galactose-rich biomass could be usable for hydogen fermenation, however, the fermentation time should be allowed enough.

• Journal of Plant Biology
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• v.28 no.2
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• pp.149-164
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• 1985

Intertidal algal community of Muchangpo in western coast of Korea was investigated qualitatively and quantitatively. Seasonal changes of algal occurrence, dominant species in cover, vertical zonation pattern and biomass were analysed. A total of sixty-four species of marine algae, one blue-green alga, three green algae, nineteen brown algae and forty-one red algae, were identified. The dominant species in cover were Sargassum thunbergii, Gelidium divaricatum and Pelvetia siliquosa throughout the year. Gloiopeltis furcata was abundant at upper and middle littoral zones and Corallina pilulifera at lower littoral zone. Classification by unweighted pair-group average method and ordination by reciprocal averaging based on the cover data indicated that, on the whole, the intertidal algal vegetation showed different patterns along tidal levels. Seasonal fluctuations of mean biomass were 57.2~92.8 g-dry/$m^2$, and the highest in summer and the lowest in spring season. Seasonal change of community structure was also discussed.

• The Journal of Korean Obstetrics and Gynecology
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• v.29 no.4
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• pp.1-12
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• 2016

Objectives: The purpose of this study is to analyze the correlation between the pulse energy and hot flush in women who complain of climacteric syndrome. Methods: We analyzed the values of pulse energy on 78 of perimenopausal and postmenopausal women. The symptoms of patients were assessed by Kupperman’s index (KI) and Menopause Rating Scale (MRS). Statistical analysis was performed by Spearman correlation coefficient and student T-test, using SPSS 18.0 for window program. Results: The results were as follows. 1. There were no statistically significant relation between pulse energy of left Cheok subtracted from left Chon and KI, MRS hot flush score. 2. When divided depending on MRS hot flush score, There were no statistically significant differences on pulse energy. Conclusions: The results suggest that there is no correlation between hot flush score and pulse energy.