• ALGAE
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• 제19권1호
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• pp.69-78
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• 2004

This study was to clarify the variations in a marine ecosystem through examining the species composition of benthic algae in the coast of Dokdo Island during summer (June & August, 2003). The total number of species found in benthic algae was 45 composed of 11% green algae, 29% red algae and 60% brown algae. The dominant species were Enteromorpha linza, Cladophora spp. and Codium frgile for green algae, Ecklonia cave, Eisenia bicyclis, Sargassum confusum, S. patens, S. horneri, Myagropsis myagroides for brown algae and Amphiroa cphedrace. A pusilla, Lithophyllum okamurae, Corallina spp. Laurencia pinnata, L. hamata, Chondria crassicaulit, C. dasyphylla, Gelidium amansii, Neosiphonia yendoi and Polysiphonia yendoi for red algae. The number of benthic algal species decreased more in this study than in previous researches. The whitening of the rocky shore might provoke the decrease of benthic algal biomass and species.

• Journal of Applied Biological Chemistry
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• 제50권2호
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• pp.74-77
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• 2007

Crude extracts of 69 marine organisms (27 salt marsh plants and 42 seaweeds) were screened for the inhibitory activity against the protein tyrosine phosphatase 1B (PTP1) in vitro. The most active extracts were methanol extracts from Derbesia marina (80.6% in inhibitory activity) and Symphycladia latiscula (85.6%) at the concentration of $15{\mu}g/mL$. Methanol extracts of Codium adhaerens and Hisikia fuziformis were moderately inhibitory with 71.2 and 69.1% inhibition, respectively. It was peculiar that only the extracts from seaweeds show inhibitory activity where those from salt marsh plants do not show any significant effect.

• Ocean and Polar Research
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• 제25권1호
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• pp.129-132
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• 2003

The crude extracts of marine algae were screened for tyrosinase-inhibitory and radical scavenging effects. Among the samples tested, Symphyocladia latiuscula and Gloiopeltis furcata were found to be the most effective in DPPH radical scavenging test while Gigatina tenella, Sargassum thunbergii, and Sargassum sp. were moderately active. For the inhibition against mushroom tyrosinase, Symphyocladia latiuscula and Sargassum confusum showed the strongest inhibition. Codium adhaerens, Corallina pilulifera, Carpopeltis cornea, Halymenia acuminata, Hizikia fuziformis, Porphyra suborbiculata, and Enteromorpha linza exhibited mild inhibitory potency.

• 한국수산과학회지
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• 제10권3호
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• pp.151-162
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• 1977

분포량이 많고 식용되고 있는 중요 해조의 효율적인 이용과 영양학적인 의의를 구명하기 위한 기초자료를 얻기 위하여 동근돌김(Porphyra suborciculata). 잎파래(Enteromorpha linza). 톳(Hizikia jusiforme). 모자반(Sargassum fulvllum), 미역(Undaria pinnatifida), 청각(Codim fragile), 셀만모자반(Sargassum kjellmanianum), 구멍갈파래(Ulva pertusa)등 8종을 선정하여, 이들 해조의 불용성 단백질 추출에 영향을 주는 제요소 즉 조체처리별, 추출온도와 시간별, 시료일추출용매화, pH의 영향등을 검토하고 또한 추출액중의 단백질 심전조건에 대하여 검토하였다. 1. 식용 해조의 조단백질 함량은 둥근돌김(Porphyra suborbiculat) $24.14\%$, 미역(Undaria pinnatifida) $15.7\%$, 톳(Hizikia jusiforme) $7.66\%$, 모자반(Sargasum fulvellum) $12.61\%$, 셀만모자반(Sargassum kjellmanianum) $14.08\%$, 잎파래(Enteromorpha linza) $10.86\%$, 구멍갈파래(Ulva Pertusa) $16.60\%$, 청각(Codium fragile)$9.89\%$이었다. 2. 시료의 처리조건에 따른 추출효과는 dry icemethanol 한제 중에서 동결시켜, 해사를 첨가하여 마쇄한 시료가 수용성 단백질 추출성적이 월등하게 좋아, 막지사발에서 마쇄한 $1.5\~2.5$배의 추출성적을 보였다. 3. 시료일추출용매비는 점질물이 적은 구멍갈파래, 잎파래는 1:20(w/v)에서, 점질물량이 많은 청각,미역, 톳, 모자반, 둥근돌김 등은 1:30(w/v)에서, 셀만모자반은 1:40(w/v)일 때 추출성적이 좋았다. 4. 추출시간은 구멍갈파래, 잎파래는 1시간, 둥근돌김, 톳, 미역, 모자반, 셀만모자반은 2시간, 청각은 3시간 정도에서 가장 효과적이었다. 5. 추출온도는 톳이 $40^{\circ}C, 둥근돌김, 청각, 잎파래 미역, 모자반, 셀만모자반 $50\%$에서, 구멍갈파래는 $60^{\circ}C$에서 최고의 추출성적을 보였다. 6. pH의 영향은 각 시료마다 대동소이하여 $pH9\~12$에서 가장 좋은 결과를 얻었다. 7. 추출 최적조건에서의 수용성 단백질 추출율은 1차 추출에서 전조단백질에 대하여 평균 $63\%$, 2차 유출에서 평균 $8.6\%$ 합계 $74\%$ 정도의 수용성 단백질 추출이 가능했으며, 1차에 대한 2차의 추출비율이 7.5:1이었다. 8. 단백질 침전분리 조작으로는 Barnstein method, methanol 처리법, TCA 처리법, 가열처리법 순으로 침전효과가 있었다.

• 대한화장품학회지
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• 제38권3호
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• pp.255-261
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• 2012

피부는 끊임없이 외부환경에 노출되며 가장 주요한 스트레스 요인 중 하나는 자외선방사이다. 자외선 방사로 인하여 피부에 염증, 착색, 광노화 및 피부암을 포함하는 생물학적 영향을 끼치게 된다. 본 연구에서는 해양천연소재 (김, 다시마, 모려, 모자반, 미역, 석결명, 우뭇가사리, 청각, 톳, 파래)로부터 피부보호 항산화제를 조사하기 위해 자외선으로부터 기인된 세포보호 효과를 증명하였으며 세포독성, 산화에 의한 세포사멸, 항노화 효과에 대하여 평가를 실시하였다. 그 결과, 모자반, 한천, 석결명, 청각 에탄올 추출물을 처리한 군이 자외선으로 유도된 세포독성 및 세포사멸을 효과적으로 억제하는 것으로 나타났다. 또한 다른 실험에서 자외선에서 인한 세포사멸은 세포내 축적이나 ROS로부터 매개되지만 해양추출물을 처리함으로써 현저하게 감소되었다. 이러한 해양추출물의 보호효과 증가는 Type I collagen과 Type I procollagen에 의해 매개하는 것과 연관되는 것으로 사료된다. 이들의 결과는 해양추출물이 노화예방 및 항산화제로서의 우수한 특성으로 피부손상에 의한 산화적 스트레스에 대응하는 새로운 기능성 소재로서의 가능성을 가지는 것으로 평가된다.

• 한국식품영양과학회지
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• 제34권5호
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• pp.687-693
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• 2005

매생이, 가시파래 및 청각에 있는 식품성분을 조사할 목적으로 매생이와 가시파래의 수확기인 12월부터 3월, 그리고 청각은 6월부터 8월까지 월별로 채취하여 채취 시기별 일반성분, 총 아미노산과 유리 아미노산, 지방산 조성, 무기질 함량 및 클로로필의 함량 변화를 측정하였다. 매생이와 가시파래는 조단백질 함량이 특히 높아서 각각 $34.1\~43.8\%$ 및 $22.5\~35.7\%$이었다. 매생이, 가시파래 및 청각의 아미노산은 glutamic acid, aspartic acid, leucine의 순으로 높았다. 매생이의 유리 아미노산은 proline과 alanine의 함량이 가장 높았다. 가시파래는 asparagine과 glutamic acid의 함량이 특히 높았으며, 3월에 asparagine의 함량이 현저히 감소한 반면 sarcosine이 크게 증가하였다. 청각의 주요 유리 아미노산은 hydroxyproline, glutamic acid 및 alanine이었다. 매생이, 가시 파래와 청각의 폴리엔산 비율은 각각 $63.91\~74.05\%,\;62.87\~68.23\%,\;40.25\~44.61\%$였다. 대표적인 무기질은 Ca, K, Mg와 Fe이었으며, 매생이와 가시 파래의 chlorophyll a와 b는 3월에 크게 감소하였다. 매생이와 가시파래는 고단백질 해조 식품으로 개발이 기대되며, 특히 가시파래에 다량 함유된 asparagine은 약리 성분으로 개발이 가능할 것으로 기대된다.

• KSBB Journal
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• 제26권4호
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• pp.267-276
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• 2011

There is a growing worldwide interest in the potential of marine biomass as an environmentally friendly and economically sustainable resource. Due to the great lack of comprehensive information about domestic seaweed resources, this study aimed to analyze the existing literature on the production and types of domestic seaweed species. Based on this data the possibilities of industrial use of domestic seaweed for the production of biofuels and bioplastics had been assessed. Our review took into account the seaweed species on domestic coasts as well as the species currently in great production via seaweed farming. Due to their wide distribution, their status as farmed crops, and the likelihood of securing their reliable supply, Codium fragile, Hizikia fuciformis, and Gelidium amansii were deemed to be the most appropriate candidates for domestic industrial use. The industrial potential of seaweed biomass was also explored by comparing the predicted amount of biomass necessary to replace current gasoline and plastics use with currently available farming space. The results of our study imply that once a steady and adequate supply of the proper kinds of seaweed can be secured through seaweed farming, there is a great potential for the development of new seaweed-based biofuels and bioplastics industries in Korea.

• ALGAE
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• 제22권1호
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• pp.45-52
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• 2007

An intertidal marine benthic algal vegetation and vertical distribution at Kangnung and it’s vicinity, the eastern coast of Korea was investigated to clarify the community structure and vertical distribution by quadrat method. Marine algae identified from the area were 116 species; 15 green, 31 brown and 70 red algae. The dominant species were Ulva pertusa, Codium fragile, Undaria pinnatifida, Dictyota dichotoma, Gelidium amansii, Corallina pilulifera, Carpopeltis affinis, Grateloupia filicina, Pachymeniopsis elliptica and Chondrus ocellatus at study sites. The vertical distribution of intertidal marine algae was divided into three distinct zones. They were characterized by Porphyra tenera at the upper, Enteromorpha spp. and Ulva pertusa at the middle, and Sargassum thunbergii, Hizikia fusiformis and Pachymeniopsis elliptica at the lower zones, respectively. The vertical distribution of subtidal zone algae were characterized by Laminaria spp. at 15m depth and Kjellmaniella crassifolia at 15 to 25 m depths, whereas Agarum cribrosum was dominant at the lower zone than 25 m depth.

• 한국조리학회지
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• 제13권3호
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• pp.68-79
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• 2007

The purpose of this study was to contribute to merchandising of native local foods. This study was designed to standardize the recipes and to analyze the nutrients of native local foods in Gijang region such as 'Myeolchijjigae', 'Galchijjigae' and 'Maejipjjim'. The test recipe for each food was prepared according to the information obtained from the personal interview of Gijang natives and then supplied for the sensory evaluation. After that, CAN Pro 2.0 was used for the nutritional evaluation. The results are as follows : Myeolchijjigae was preferred when radishes and traditional soybean paste were added. Galchijjigae was more liked when young pumpkins, mixed soy sauce and soybean paste were added. Maejipjjim was preferred with Aeji(Codium adhaerens), Warty sea squirt(Styela clava), soybean paste and powdered perilla seed(Perilla frutescens var. japonica) added. The analysis of nutrient composition revealed that in general energy content was low whereas protein content was as high as recommended requirement in Myeolchijjigae and Maejipjjim. Calcium and phosphorus were high in Myeol-chijjigae, vitamin A in Galchijjigae, and vitamin A, B_6$, folic acid, phosphorus and iron in Maejipjjim.

• ALGAE
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• 제20권3호
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• pp.251-260
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• 2005

Antioxidative activities of Chlorophyta and Phaeophyta in Jeju Island were measured by superoxide anion ($O_2^{{\cdot}-}$), hydroxyl radical ($HO^{\cdot}$), hydrogen peroxide ($H_2O_2$) and DPPH free radical scavenging assays. Methanolic and aqueous extracts of the seaweeds were prepared at both temperatures, higher (70$^{\circ}C$) and room temperature (20$^{\circ}C$), and screened for the construction of an extract bank from seaweeds in Jeju Island. A variety of extracts showed positive effect against reactive oxygen species (ROS). Especially, Sargassum thunbergii methanolic extract at 70$^{\circ}C$ (70ME, 97.41%), S. fulvellum methanolic extract at 20$^{\circ}C$ (20ME, 84.66%), Codium fragile aqueous extract at 70$^{\circ}C$ (70AE, 96.61%) and S. thunbergii 20ME (97.44%) exhibited the highest scavenging activities against $O_2^{{\cdot}-}$, $HO^{\cdot}$, $H_2O_2$ and DPPH free radicals, respectively. Total phenolic contents also examined but did not show a positive correlation with ROS scavenging abilities (except for a few extracts). These results indicate that further investigation is needed to identify and purify the responsible antioxidative components.