• Journal of Environmental Science International
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• v.24 no.10
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• pp.1285-1307
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• 2015

We constructed marine forest to restore barren grounds which are expanding in the east coast of Korea using 2 methods of (1)seedlings transplantation method and (2)underwater floating ropes method. We transplanted 3 macroalgae species, Ecklonia cava, Undaria pinnatifida, and Saccharina. japonica to construct marine forest. Blade length of Undaria pinnatifida on underwater floating ropes was $56.70{\pm}8.69mm$ in April and grew $68.75{\pm}22.30mm$ in May and $70.75{\pm}14.36mm$ in July. Blade length of S. japonica was shown 97.95-143.00mm in April to June. Blade length of Ecklonia cava was $30.50{\pm}1.91mm$ in May, $41.55{\pm}1.84mm$ in August, $45.30{\pm}2.57mm$ in November, 2009 and $45.30{\pm}1.99mm$ in February, 2010. The survey on Dangsa area, Ulsan-city in January, 2009 found a total number of 15 algal species(1 brown algae, 14 red algae species) with the highest variety at 5m depth of A station and the lowest at 8m depth of A and B stations. The March survey showed a total of 24 species (1 green algae, 1 brown algae, 22 red algae species) with the highest variety of 11 at depths of 3m and 5m of B station and the lowest of 6 at 10m of B station. In May, total biomass was 3,755.4g (green algae 1.2g, brown algae 199.0g, red algae 3,555.2g). From January, 2009, we found that E. cava was dominant at the depths of 3m and 5m of A and B stations while Peyssonnelia capensis was dominant at the depth of 8m of A station. The 8m depth of B station was dominated by Acrosorium polyneurum. In May, Grateloupia lanceolata was dominant at 8m depth of A station while other depths were dominated by Phycodrys fimbriata. In June, the dominant species were G. lanceolata at the 3m depth, E. cava at the 5m and P. fimbriata at the depths of 8m and 10m of A station. Under B station, G. lanceolata was dominant at the depths of 3m and 5m while P. fimbriata was dominant at the depths of 8m and 10m.

• Journal of Marine Life Science
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• v.4 no.2
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• pp.81-85
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• 2019

This study was carried out to observe the changes of seaweed community in artificial reefs installed in September, 2016 in Namae-ri, Yangyang-gun, and Seokbyeong-ri, Pohangsi, Korea. Field surveys were conducted by SCUBA diving once a season in February, May, August, and November of 2017, and quantitative survey and qualitative survey were carried out in parallel. In this study, a total of 94 species, including 11 green algae, 15 brown algae and 68 red algae were appeared. 66 species (8 green algae, 9 brown algae, 49 red algae) and 65 species (7 green algae, 9 brown algae, 49 red algae) were collected and identified in Yangyang and Pohang. In dominant species, Yangyang was dominant species of Saccharina japonica and subdominant species of Ulva australis. Pohang dominated in order of Colpomenia sinuosa and Gelidium elegans. In both coastal areas, Ulva spp., Colpomenia sinuosa were grown at the early stage of reforestation, and perennial seaweeds such as Saccharina japonica, Ecklonia cava and Gelidium elegans were grown. In order to clarify the clustering relation through flora change, it is necessary to monitor the transition process until the seaweed community is stabilized by observing the long-term change through continuous monitoring.

• Preventive Nutrition and Food Science
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• v.17 no.2
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• pp.129-135
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• 2012

GPAR{elidium (G.) amansii is a red alga widely distributed in the shallow waters around East Asian countries. We investigated the effect of G. amansii on lipid accumulation and ROS (Reactive Oxygen Species) production in 3T3-L1 cells. G. amansii extracts dose-dependently inhibited lipid formation and ROS generation in cultured cells. Our results showed that anti-adipogenic effect of G. amansii was due to the reduction in mRNA expressions of PPAR${\gamma}$(peroxisome proliferator-activated receptor-${\gamma}$) and aP2 (adipocyte protein 2). G. amansii extracts significantly decreased mRNA levels of a ROS-generator, NOX4 (nicotinamide adenine dinucleotide phosphate hydrogen oxidase 4), and increased the protein levels of antioxidant enzymes including SOD1/2 (superoxide dismutases), Gpx (glutathione peroxidase), and GR (glutathione reductase), which can lead to the reduction of ROS in the cell. In addition, the G. amansii extract enhanced mRNA levels of adiponectin, one of the adipokines secreted from adipocytes, and GLUT4, glucose uptake protein. Taken together, our study shows that G. amansii extract inhibited lipid accumulation and ROS production by controlling adipogenic signals and ROS regulating genes.

• Journal of Life Science
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• v.13 no.4
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• pp.516-521
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• 2003

Optimal conditions of protoplast isolation from the seaweed Prophyra pseudolinearis have been described. The P. pseudolinearis is one of indigenous and dominant Porphyra species in the East Sea region. Protoplasts have been released by enzymatic treatment of 2% agarase and 2% hemicellulase in 25mM MES buffer, pH 6.0 containing 0.5 M sorbitol. The protoplasts could be fused with neutral red-stained protoplasts of P. okamurae by the addition of polyethylene glycol 8000 solution.

• Journal of the Speleological Society of Korea
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• no.75
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• pp.9-13
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• 2006

자유수산기는 단분자 제조공정으로 분자, 원자 층에서 가공되어 기타 활성입자와 함께 얻어지며, 20% 이상의 고 밀도 질량 비는 양산공정에 중요한 의미를 부여한다. 자유수산기가 선박안정수의 외래침입 생물과 적조처리 및 양식수체 정화에도 효과적인 새로운 처리기술로 선박 안정수에 포함되어 타 지역으로부터 옮겨지는 외래침입생물 처리 방안의 하나로, 강 전리방전 기술을 적용하여 고 밀집 산소와 물분자로부터 고농도 수사자유기(OH: hydroxyl radical)를 전리, 발생시켜서 활성입자를 신속히 확산시켜 비교적 낮은 수산기농도 하에서 유해성침입생물을 사멸 처리하는 환경 친화적 녹색 청정처리방법을 제안하였다.

• Food Science and Biotechnology
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• v.16 no.6
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• pp.873-878
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• 2007

In this study, we isolated porphyran was isolated from the red seaweed Porphyra yezoensis and assessed in terms of in vitro anti-proliferative activity. Sequential anion-exchange and gel-filtration chromatography led to purification of 3 porphyrans of different molecular masses, which contained <$50\;{\mu}g/mL$ protein and >$10\;{\mu}g/mL$ porphyran. Crude porphyran inhibited cell growth in a dose-dependent manner (0-5 mg/mL). When HT-29 colon cancer cells and AGS gastric cancer cells were cultured with various concentrations of the purified porphyran, cancer cell growth was inhibited by 50% at a low concentration (5 or $10\;{\mu}g/mL$). Furthermore, the polysaccharide portion of the porphyran preparation, rather than the protein portion, is the most effective at inhibiting cancer cell proliferation via apoptosis, as indicated by increased caspase-3 activity. Our results indicate that purified porphyran has significant in vitro anti-proliferative activity (p<0.05).

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2004.05b
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• pp.285-288
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• 2004

자유수산기는 단분자 제조공정으로 분자, 원자 충에서 가공되어 기타 활성입자와 함께 얻어지며, 20% 이상의 고 밀도 질량비는 양산공정에 중요한 의미를 부여한다. 자유수산기가 선박안정수의 외래침입생물과 적조처리 및 양식수체 정화에도 효과적인 새로운 처리기술로 선박 안정수에 포함되어 타 지역으로부터 옮겨지는 외래침입생물 처리 방안의 하나로, 강 전리방전 기술을 적용하여 고 밀집산소와 물분자로부터 고농도 수산자유기(OH: hydroxyl radical)를 전리, 발생시켜서 활성입자를 신속히 확산시켜 비교적 낮은 수산기농도 하에서 유해성침입생물을 사멸 처리하는 환경 친화적 녹색 청정처리방법을 제안하였다.

• Journal of the Korean Society of Food Culture
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• v.27 no.1
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• pp.30-37
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• 2012

The purpose of this study was to identify U.S. consumers' preferences for Bibimbap and to determine whether or not Bibimbap can be adopted into the American palate. A total of 214 people tasted a controlled amount of Bibimbap and Gochujang sauce (red chili pepper sauce) and then completed a preference test. Bibimbap was highly rated overall in the areas of appearance, color, smell, and taste. Gochujang sauce was also well-accepted in terms of taste and spiciness. Most of the participants disliked the seaweed and shiitake mushrooms, which means that Bibimbap can improve its garnish taste and aroma by removing them. Further, a more watery sauce was served as foreigners are not familiar with mixing food culture. Therefore, by offering diverse ingredient options, the acceptance of traditional Bibimbap can be increased in the U.S.

• Journal of Korean Medical classics
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• v.32 no.2
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• pp.93-110
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• 2019

Objectives : To examine food therapy for dermatological illnesses within their relationship with Pattern Identification and Treatment Discussion in "Sikryochanyo". Methods : Texts concerning dermatological conditions in "Sikryochanyo" were selected, followed by identifying each condition's pattern and treatment through examining each food ingredient's nature, flavor and main effect. Results : Each food ingredient such as eel, white sesame, duck meat, mallow, red beans, oyster, chicken meat, mung beans, female pig hooves, Chinese cabbage, venison, roe deer meat, kelp, seaweed, wheat, lappa fruit used to treat certain dermatological conditions could be categorized according to its properties in regulating Coldness, Heat, Deficiency, and Excessiveness of a given condition. Conclusions : When applying food ingredients to dermatological illnesses, Coldness, Heat, Deficiency, Excessiveness of the condition must be differentiated first for appropriate administration of food to the pattern that is being addressed.

• Journal of Marine Bioscience and Biotechnology
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• v.2 no.3
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• pp.133-141
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• 2007

There are produced more than 600,000 tons of seaweeds every year along the coast of the Korea. Jeonnam province, south-west coast area, of Korea is producing 93% of total amounts of seaweeds. The laver, sea mustard, and tangleweed maintain stability in the output and has been exported as a simple product processing through drying or salting. It was evaluated the low value-added products and limited the expansion for the consumption of seaweeds. The seaweeds contains 40-60% carbohydrate and structurally different compared with land plant. The dietary fiber from seaweeds has been known the function of facilitating the bowl movement, excretion the heavy metal in the body, lowering the blood cholesterol level, anti-coagulant of blood, and anticancer. Especially, brown algae including sea mustard, seaweed fusiforme, and tangleweed contains alginic acid, laminarin, mannitol, fucoidan which are lowering the blood cholesterol level, lowering blood pressure, and fusion of blood clot. Agar-agar, carrageenan, and porphyran compound in red algae are known to antimutagenicity and anticoagulant function. In spite of potential of seaweed as a main bio-resource, there are lack of research to facilitate the consumption with its functional properties and consumers are unsatisfied with simple processing products. Also, the seaweed by-product dump into the sea and cause pollution of the seawater. Therefore, there are needed the scheme to promote the consumption of seaweeds. The development of value-added products, finding functional properties from seaweeds, development the functional feed for animal using seaweed by-products, and utilization of unused algae for food or other industrial uses will increase fisherman's income as well as serve as an aid for the people health due to its functional properties. Using by-product of seaweed and unexploited seaweed are needed to development of bio-degradable food packaging material and functional feed for animal.