• Title/Summary/Keyword: Korean seaweeds

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An Investigation of Obesity, Anemia and Food-life- attitude for the Middle Aged Persons in Kimchun (김천지역 중년 성인의 비만.빈혈과 식생활 태도 조사)

  • 위성언;박모라
    • The Korean Journal of Food And Nutrition
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    • v.6 no.1
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    • pp.25-30
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    • 1993
  • This study was done to investigate the correlation between food-life-attitude and anemia as well as obesity. 154 people living in Kimchun in the forties or fifties were selected for this study as subjects from January to February, 1991. The data analysis was made by way of frequency, percentage, X, SD and pearson correlation using SAS package of PC. The summarized results were as follows. The survey on food-life-attitude showed that 32.5% of the subjects had a good attitude. The average score of the subject's food-life-attitude was 31.3. 34.4% of the subjects were obesity. The significant items positively correlated to obesity were a regular breakfast, the settled amount of meal intake, concerns about food combination, an effort to correct an unbalanced diet, the presence of remained meal, an appetite, a diet considered to health, the use of instant foods and daily intakes of green-yellow vegetables, protein foods and seaweeds. 9.1% of the subjects were anemia. The significant items positively correlated to anemia were an effort to correct an unbalanced diet, a sweet meal, an appetite, attentions to food additives, a diet considered to health, the use of instant foods, daily intakes of green-yellow vegetables and seaweeds and a regular meal.

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Marine Algal Flora and Community Structure of the Intertidal Zone around Shingori Nuclear Power Plant, Korea (신고리원자력발전소 주변 해역 조간대의 해조상 및 군집구조)

  • Han, Su Jin;Jang, Jae Gil;Hwang, Youg Hun;Son, Min Ho;Choi, Han Gil
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.50 no.3
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    • pp.319-325
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    • 2017
  • Marine algal flora and community structures were examined seasonally at three sites around the Shingori Nuclear Power Plant, Korea from February to November 2016. A total of 76 species were identified, including 9 green, 14 brown and 53 red algae. The greatest number of species occurred at Daesongri (51 species) followed by Sinamri (43 species) and at the discharge area (38 species) during the study period. Of the 76 seaweeds, 59 annuals and 17 warm tolerant species were recorded. Annual average biomass in dry weight varied from $168.02g/m^2$ at the discharge area to $222.53g/m^2$ at Sinamri. The coarsely branched form was the dominant functional form of seaweeds at the three sites. Seaweed community structures at the discharge site were distinguishable by decreasing species richness, biomass, species diversity index, richness index, and evenness index. The ratio of warm tolerance species and the dominance index values were remarkably higher at the discharge than those at the other sites.

Preparation of Cellular Liquid from Brown Seaweeds for Functional Tonic Products (기능성 음료의 개발을 위한 갈조류 생세포액의 제조)

  • 강영주;류근태;김효선
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.25 no.1
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    • pp.94-103
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    • 1996
  • 기능성 해조음료를 개발하기 위하여 미역, 톳 및 다시마를 저온하에서 마쇄, 원심분리, 한회여과를 거쳐 생해조 세포액을 얻었으며, 각 해조 생세포액의 성분 분석과 색차 측정 및 관능검사를 통하여 품질평한 결과 다음과 같았다. 원심분리 후 한외 여과에 의한 생세포액의 수율은 생해조에 대하여 6.8~56.5% 였으며, 톳과 미역의 수율은 높았으나 다시마는 수율이 낮았다. 해조액을 한회여과한 다음 동결건조한 시료의 회분 합량은 28~60%였으며, 조단백 함량은 12.7%~6.7%정도 였는데 미역과 톳은 다시마 보다 각 성분의 함량이 많았다. 알긴산과 chlrophyll 및 carotenoid 은 한회여과막에 의하여 대부분 제거되었으나 톳의 polyphenol은 30K 한외여과막에 의해서도 효과적으로 제거되지 않았다. 다시마와 톳 생세포액의 주요 아미노산은 glutamic acid와 aspartic acid 였으며, 미역의 경우는 alanine, aspartic acid, valine이었다. 해조 생세포액중의 무기 질은 칼륨의 함량이 특히 높았으며 양이온의 경우 나트륨, 마그네슘, 칼슘, 철, 아연, 망간, 구리순으로 함유 되어있었다. 음이온으로는 $Cl^{-}$,$SO_{4}^{2-}$,$HPO_{4}^{2-}$,$NO_{3}^{-}$의 함량이 높았으며, I와 Br의 함량은 다시마가 톳과 미역에 비하여 높았다.

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Total Phenolic Contents and Biological Activities of Korean Seaweed Extracts

  • Kim, So-Jung;Woo, Seon-Ock;Yun, Hee-Young;Yum, Seung-Shic;Choi, Eun-Seok;Do, Jeong-Ryong;Jo, Jin-Ho;Kim, Dong-Giun;Lee, Suk-Chan;Lee, Taek-Kyun
    • Food Science and Biotechnology
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    • v.14 no.6
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    • pp.798-802
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    • 2005
  • Crude extracts of thirty seaweeds collected in Korea were obtained using 50% ethanol, and total phenolic contents and antioxidant activities were compared. Two brown algae, Ecklonia cava (E. cava) and Sargassum siliquastrum (S. siliquastrum), showing high antioxidant activity based on 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity and superoxide anion radical scavenging activity were further investigated for their inhibitory effects on tyrosinase activity. The E. cava extract had the highest total phenolic content among the seaweeds extracts. Total phenolic contents were strongly correlated with antioxidant activity in the thirty seaweed extracts ($R^2\;=\;0.9169$). The E. cava and S. siliquastrum extracts exhibited higher inhibition to tyrosinase activity than butylated hydroxytoluene (BHT) and epigallocatechin gallate (EGCG).

Preparation of Mook with Sea Mustard and Sea Tangle 1. The Optimum Condition of Sea Mustard and Sea Tangle Mooks (미역과 다시마를 주원료로 한 묵 제조1. 미역, 다시마묵의 최적 조건과 그 물성에 관하여)

  • 정용현;김건배;최선남;강영주
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.23 no.1
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    • pp.156-163
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    • 1994
  • To investigate the optimum conditions of seaweed Mooks prepared with sea mustard (Indaria pinnatifida) and sea tangel(Laminaria japonica), pH, viscosity , yield and jelly strength were studied on the sol and /or gel (Mook ) made from homogenized seaweeds. Solubilization conditions of homogenized seaweeds were heating at $65^{\circ}C$ for one hour after mixing homogenized seaweed with 1 % $K_2$HPO$_4$ by 1 ; 1 (v/v) . Gelation conditions were 24 hrs by natural permeation of Ca++ into the sol in three times (v/v) of 1 % CaCl$_2$ solution to solubilized seaweed passed through 60 mesh of sieve. There are generally no relationship between viscosity of solubilized seaweed and jelly strength of Mook produced by gelation of the sol in CaCl$_2$ solution . Jelly strength of sea mustard Mook was more than 500g/$\textrm{cm}^2$ , yield was 87.5% of the solubilized and filtrated seaweed . Jelly strength and specific gravity of sea tangle Mook were higher those of sea mustard Mook, while its yield was lower than that of sea mustard Mook.

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Protective effect of Korean diet food groups on lymphocyte DNA damage and contribution of each food group to total dietary antioxidant capacity (TDAC) (한식 식품군의 in vitro 총 항산화능 (TDAC)과 ex vivo DNA 손상 보호효과와의 관련성)

  • Lee, Min Young;Han, Jeong-Hwa;Kang, Myung-Hee
    • Journal of Nutrition and Health
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    • v.49 no.5
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    • pp.277-287
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    • 2016
  • Purpose: This study was performed to compare total phenolic contents, in vitro antioxidant capacity, and reduction effect of Korean food groups on ex vivo DNA damage in human cells and analyze correlations between each indicator. Methods: Vegetable foods in the Korean diet based the results of the KNHANES V-2 (2011) were classified into 10 food groups: cereals, fruits, vegetables, nuts, kimchi, seaweeds, potatoes, mushrooms, legumes, and oils. Eighty-four foods constituted more than 1% of the total intake in each food group and finally designated as vegetable foods in the Korean diet. Total phenolic content of each food group was measured. Further, in vitro antioxidant capacity was measured based on DPPH radical scavenging assay, TEAC assay, and $ORAC_{ROO{\cdot}}$ assay. Ex vivo DNA damage in human lymphocytes was assessed using comet assay. Results: Total phenolic contents of food groups of the Korean diet increased in the order of mushrooms, fruits, vegetables, seaweeds, and kimchi. Meanwhile, antioxidant rankings of food groups as mean values from the three in vitro test methods increased in the order of mushrooms, seaweeds, vegetables, kimchi, and fruits. Protection against ex vivo DNA damage in human lymphocytes was highest in mushrooms, followed by vegetables, fruits, seaweeds, and kimchi. The rankings of the food groups for total phenolic content, in vitro DAC, and ex vivo DNA protection activity were similar, and correlations between each indicator were significantly high. Conclusion: Mushrooms, fruits, vegetables, and seaweeds among the tested food groups in the Korean diet showed high total phenolic contents, in vitro antioxidant capacities, and protection against DNA damage. Correlations between each indicator in terms of total phenolic content, in vitro antioxidant capacity, and ex vivo DNA protection between each food group were found to be particularly high.

Manufacturing Process and Component Analysis of Seawater Salt Using Seaweeds (해조류를 이용한 해수소금 제조기법 및 성분분석)

  • Lee, Seung-Won;Kim, Hyeon-Ju;Moon, Deok-Soo;Jung, Dong-Ho;Choi, Hark-Sun
    • Journal of Ocean Engineering and Technology
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    • v.21 no.4
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    • pp.61-65
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    • 2007
  • In this research, we have developed a manufacturing process for seawater salt by horizontal spray drying technique using the deep ocean water and seaweed(sea tangle). Deep ocean water, strong acidic electrolyzed water and strong alkaline electrolyzed water were used as extraction solvent of seaweed. Sodium content in seaweed extract solution by strong alkaline electrolyzed water was 1.63(mg/g), which was 3.5 times lower than of seaweed extract by strong acidic electrolyzed water. Major mineral content(Na, K, Ca) in seawater salt by deep ocean water were higher than strong acidic electrolyzed water and strong alkaline electrolyzed water. On the contrary, Mg contents in seawater salt by deep ocean water were lower than strong acidic electrolyzed water and strong alkaline electrolyzed water. Based on the results of seawater salt production using seaweed, it is possible to make law-salt efficiently.

A Study on evaluation of biological availability of Ca from the seaweeds in rats (미역, 다시마, 파래 함유 식이가 쥐의 체내 칼슘 대사에 미치는 연구)

  • 게수경;한정순
    • Journal of Applied Tourism Food and Beverage Management and Research
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    • v.9
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    • pp.15-32
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    • 1998
  • This experiment was carried out to evaluated biological availability of calcium inthe sea mustard, sea tangle and sea lettuce in the rats. Standard diets were made to supply 0.3% of Ca from CaCO3. Consequently, levels each test ingredients to be added were sets by their Cacontents. The ingredients such as sea mustard, sea tangle and sea lettuce wereadded to basal diet at levels of 15.23%, 12.66% and 23.42% respectively. Ingredients of the basal diet were soybean protein, corn oil, alpha-cellulose, methionine, choline cholride and vitamin and mineral premix. Dextrose was added at level up to 100%. Amount of soybean protein was adjustable to make all the diets isontrogenous. Rats were fed ad libitum the diets for 13 days. The results were summarized as follow: 1. Serum calcium levels of the sea mustard group(15.23%) were higher than those of the other group, but rats fed sea lettuce diets appeared to have the lowest value. 2. Ca concentration in tibia were lower in rats fed with sea lettuce, rather than in those with standard diet. 3. Ca concentration in femur of the rats fed seaweeds did not show any significant difference among groups. 4. In the liver weight in groups fed on the all experimental groups were decreased more than that in the case of the standard diet groups.

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