• Korean Journal of Microbiology
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• v.52 no.1
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• pp.40-48
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• 2016

This study mainly focused on isolation of marine algicidal bacteria associated with phytoplankton blooms and characterization of algicidal activity against harmful algae. Harmful algal blooms (HABs) found naturally in surface waters have caused many environmental problems worldwide. In this study, forty bacterial strains that have capability of inhibiting harmful algal growth were isolated from Masan Bay, Jinhae Bay, Dol Island, Jangmok Bay, and the Tongyeong Sea, Republic of Korea. The bacteria were screened furthermore for the characteristics on algicidal activities against Cochlodinium polykrikoides, Chattonella marina, Skeletonema costatum, Heterosigma akashiwo, Heterocapsa triquetra, Prorocentrum minimum, and Scrippsiella trochoidea. As a result, the algicidal bacteria that were screened from double over layer agar and microscopic counts tests belonged to genera Pseudomonas, Vibrio, Bacillus, Pseudoalteromonas, Ruegeria, Joostella, Marinomonas, Stakelama, Porphyrobacter, and Albirhodobacter. One of the most important HAB species is Co. polykrikoides and the strongest algicidal activity against the dinoflagellate was 94.00% after 6 h treatment with 10% bacterial culture filtrate. In this study, Marinomonas sp. M Jin 1-8, Stakelama sp. ZB Yeonmyeong 1-11 & 1-13, Porphyrobacter sp. M Yeonmyeong 2-22, and Albirhodobacter sp. 6-R Jin 6-1 were found to be as new genera of bacteria having anti-algal activity. These results suggest that these bacteria might play an important role in controlling phytoplankton blooms.

• Journal of the East Asian Society of Dietary Life
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• v.4 no.1
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• pp.1-18
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• 1994

This study is designed to delve into the measuring systems of different periods so as to help with more exact representations of cultures of different periods. The basis of the measuring system in china stems from the huangjong (Huangzhong : the yellow bell) of the period of Huangdi, the length of the bell being the width of 90 black millet grains. Do (Du : width) ; 1 bun=the width of one black millet grain, 1 Chon=10 Buns, 1 Chuk=10 Chons, 1 Jang=10 Cheoks, 1 In=10 Jangs. Ryang (Lyang : volume) ; 1 Yak=the weight of 1,200 grains in the yellow bell, 1 Hab=2 Yaks, 1Seung=10 habs, 1 Du=10 Seungs, 1 Gok=10 Dus. Hyung (Hung : weight) ; 12 Jus=the weight of 1 Yak, 1Yang=24 Jus are equal 1 Hab in weight, 1 Geun=16 Ryangs, 1 Jo=30 Geuns, 1 Seo=4 Jo. In the era of Eun (In) it was decided that the 9-chon length of the Yellowbell shall be 1 Cheok. The Cheok of Ju was set at 4/5 of the length of the yellow bell. The Cheok of Ju breaks into Yongjocheok, Joryegicheok, Pogeumcheok. Yongjocheok, arising from Rohbancheok of the Ju period, is part of Gokcheok also used as a measuring tool for wooden works. The Han cheok has the same length as the yellow bell. The Sang Cheok is 4/5 of the length of the yellow bell. The Tang Cheok was originally the same as the Sang cheok but became longer and longer to be the Long cheok (31.3cm). The length-measuring system used in the three-nation era of Korea includes the gijeom cheil (35.52cm), Ju cheok (25.45cm), sunje Cheok (23.5cm), the Long Tang Cehok (29.706 cm), making 10 Bun 1 Chon and 10 Chon 1 Cheok. The volume-measuring system(Seung) was 198.81 ㎤ before 681 BC in the shilla Dynasty and was 596.42 ㎤ after that. In the seventh year of Kng Munjong of the Koryo dynasty the standard measuring system with the Long Tang Cheok as its basis was adopted, and the standard volume-measuring tools were used under the name of Migok, Daesodugok, Mijangdu, (29.706 cm), making 10 Bun 1 Chon and 10 Chon 1 Cheok. The volume-measuring system(Seung) was 198.81㎤ before 681 BC in the shilla dynasty and was 596.42 ㎤ after that. In the seventh year of King Munjong of the Koryo dynasty the standard measuring system with the Long Tang Cheok as its basis was adopted, and the standard volume-measuring tools were used under the name of Migok, Daesodugok, Kijangdu, Habseung and gokseok. The 1 Seung volumes of theses toolas were 596,447,927 and 1053㎤, respectively. were called Migok, Daesodugok, Mijangdu, Habseung and Gokseok, being respectively 596,447,927, 1053 ㎤, respectively. In the Chosun Dynasty the length of the Yeongjocheos was 27.6 cm or 31.220 in the Sejong era, 29.8 from Heonjong through Gojong, and 30.3 cm after the 6th year of King Kwangmu, and the volume of Du(Mal) also changed like 4.121 or 5.964, 5.187, 23.08 $\ell$, and the 1-Jeonjung also changed like 2.66 or bout 4, 3.45, 3.75 in line with the changes of the length system.

• Korean Journal of Environmental Biology
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• v.36 no.4
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• pp.601-609
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• 2018

Microcystis aeruginosa, a freshwater cyanobacteria species known to be one of the most predominant species responsible for cyanobacterial harmful algal blooms (CyanoHABs). It has been frequently associated with the contamination of neurotoxins and peptide hepatotoxins, such as microcystin and lipopolysaccharides-LPSs. CyanoHABs control technologies so far put in place do not provide a fundamental solution and cause secondary pollution linked with the control measures. For this study, algicidal peptides, which have been reported to be non-toxic and to have antimicrobial properties, were employed for the development of novel eco-friendly control against CyanoHABs. The four peptides (CMA1, CMA2, HPA3P, and HPA3NT3) selected in this study showed significant algicidal effects against M. aeruginosa cells inducing cell aggregation and flotation. Moreover, the newly generated peptides (K160242-5) with certain modifications also displayed high algicidal activity. The algicidal activity of the peptides was found to depend on the concentrations and structures of each of amino acid. The results of this study suggested a novel possibility of CyanoHABs control using the non-toxic algicidal peptides.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.42 no.1
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• pp.68-72
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• 2009

To gain a greater understanding of the potential for future harmful algal bloom (HAB) outbreaks and to trace the dispersal paths of dinoflagellates, sediment samples were collected from 13 stations in the southeastern Yellow Sea. 23 different types of dinoflagellate resting cysts were identified from the samples. Protoceratium reticulatum (1-391 cells/g dry weight), Gonyaulax scrippsae (0-254 cells/g dry weight), G. spinifera (0-301 cells/g dry weight) and Alexandrium spp. (ellipsoidal type) (0-76 cells/g dry weight) were the dominant species at all surveyed stations. The overall distribution pattern demonstrated that the resting cyst densities were highest in the offshore area and decreased gradually toward the Korean coast. On the other hand, the composition rate of resting cysts of the heterotrophic dinoflagellate species to the total dinoflagellates was higher in the Korean coast region than in the offshore area. We supposed that this distribution pattern of dinoflagellate resting cysts appeared to be influenced by the hydrographic features and environmental conditions of the Yellow Sea.

• Journal of Pharmacopuncture
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• v.10 no.1 s.22
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• pp.55-66
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• 2007

Objectives : The purpose of this study is to analyze the practical implications of homeopathic medicines, their status, their preparation systems and registration rules, recognized by the European Union and other countries. Contents : This paper covers the background of homeopathic medical principle, homeopathy throughout the world, the medicine status and clinical research, increases of the drug potency, the practical regulation of treatment, preparation techniques of homeopathic drugs and registration rules and the clinical practice. Homeopathy has been currently practised in over eighty countries throughout the world, especially in Europe. It had attracted considerable attentions in South and North America (notably in USA, Brazil, and Argentina), India and Pakistan. Although it is not dominantly popular in North America, constant growth has been nevertheless noted. Over the last thirty years, homeopathy has also developed or appeared in South Africa, Tunisia, Morocco, Venezuela, Israel, and Australia, etc. Result & suggestion : As over 300 million patients have put their trust in homeopathy, the study of the integration of homeopathy to oriental medicine, its development and feasibility in Korea are urgently needed. The products, substances, compositions of Homeopathic drugs are very similar to those of oriental medicine theory. Therefore their preparations and applications should prescribed and practised exclusively by oriental doctors. Applying the homeopathic theory and its preparation techniques to oriental medicine, the herbal acupuncture preparation should be modernized and various oriental products are to be developed. To this end, government and herbal acupuncture society need to interact each other for the development of oriental medicine.

• Journal of Microbiology and Biotechnology
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• v.13 no.5
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• pp.651-659
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• 2003

A new method was proposed to control Harmful Algal Blooms (HABs) by a biosurfactant sophorolipid. The effect of sophorolipid on the growth, motility, precipitation, and recovery of algal cells was investigated for four common HAB species, Scripsiella trochoidea, Prorocentrum minimum, Cochlodinium polykrikoides, and Heterosigma akashiwo. The motility and growth of algal cells were inhibited significantly at the concentration of 20 and 5 mg/l sophorolipid, respectively, and no recovery was observed under the above concentrations. The concentration of 20 mg/l sophorolipid was considered to be an effective concentration for the mitigation of HABs. A sedimentation test suggested that the maximum precipitation occurred at the end of 1 h, and the algicidal effect of sophorolipid was observed by a microscope. Comparative study showed that sophorolipid had marked algicidal capability. Analysis on biodegradability, toxicity, and cost effectiveness further demonstrated the potential of sophorolipid in future HABs mitigation.

• KIEAE Journal
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• v.5 no.1
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• pp.19-25
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• 2005

Rapid urbanization and social development have brought about changes in family structure. In urbanized areas, recently the number of dogs that are a majority of companion animals has increased significantly in Korea. Consequently, a lot of friction between the general public who are not fond of dogs and dog owners in public places such as parks has been happening. A lot of countries that are taking a lead role in animal welfare have built dog parks that the general public and dogs can enjoy together. This research starts with the realization that the concept of 'dog park' needs to be introduced in Korea as more and more Koreans own dogs and other pets. This research aims to provide guidance for dog park planning by drawing planning items and analyzing the needs of each item. Total 56 planning items including dog zone, dog playground, and dog training facility, are drawn in this research. There are differences in the needs according to sex, age and the amount of time they spent with their dogs, however overall there is the highest needs in separated area for dogs in parks.

• Proceedings of the KSRS Conference
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• v.2
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• pp.529-532
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• 2006

The oceanic currents in the South China Sea (SCS) are strongly influenced by monsoon winds. A review on the SCS currents has indicated that previous studies have pointed out an anticyclonic circulation in the area between the southern Vietnam coast and the Spratly Islands. However, its detail is not understood because of less information of in situ observations. The physical-biological interaction is quite new research area, which has been established and promoted by means of the ocean color remote sensing. Temporal/spatial variability of the phytoplankton activities are well captured by ocean color (OC) -derived Chlorophyll-a images. Combining the OC-Chl-a and the other high-resolution satellite data (e.g., SST images), the biological aspects of oceanographic variation is well described. The blooming phenomena in the area between the southern Vietnam coast and the Spratly islands are further investigated. Change in the wind-system related to the El Nino generates upwelling/SST-cooling in the sea south of the Spratly Islands through the air-sea-land interaction was studied. The seasonal upwelling is also associated with the harmful algal bloom (HAB) off two side of Indochina Peninsula have investigated. The seasonal variation of SCS phytoplankton blooming and related oceanic conditions in Vietnam coast was observed. Ocean color satellite data has effective contribute to study the oceanic condition and phytoplankton blooming in South China Sea.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.37 no.3
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• pp.202-208
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• 2004

The spatio-temporal distribution of dinoflagellate resting cysts was investigated by palynological processing to understand the harmful algal bloom (HAB) potential in the sediment of the Saemangeun area in 2003. In total, thirty-two dinoflagellate species were identified, and their concentrations were in the range of $6-1,618\;cysts{\cdot}g^{-1}$ (dry weight). The concentrations of resting cysts were higher in the spring (26 species, $64-1,101\;cysts{\cdot}g^{-1})$ and summer (30 species, $81-1,618\;cysts{\cdot}g^{-1})$ than in the autumn (32 species, $6-1,150\;cysts{\cdot}g^{-1})$ and winter (24 species, $25-728\;cysts{\cdot}g^{-1}).$ The composition rate of the heterotrophic dinoflagellate species to the total, which is closely related to the eutrophication process, to ranged from 6 to $29\%$ in the study area. The most dominant species was toxic Alexandrium tamarense/catenella $(25\%)$ followed by Gonyaulax scrippsea $(9\%)$ and toxic Protoceratium reticulatum $(5\%).$ Given the high abundance of the toxigenic dinoflagellate species, the Saemangeun area is considered to have the great potential for HABs in the future.

• Korean journal of food and cookery science
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• v.6 no.3 s.12
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• pp.67-83
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• 1990

Currentry, the originality of traditional soups in Kyoung-Nam province is vanishing by the inflex of processed and instant food, food industrial development. Especially, such factors as the influence of alien cooked, the develoment of transportation, the movement of population have made it hard to preserve the traditionnal food preparations. The purpose of this thesis was to seek out the various kinds of Kyoung-Nam province soups preparation. To do this, about 60 kinds of soups recipe were reviewed and charactered into several categories. The findings of the study are as follows. 1) Soup is made by fish or shellfish, freshwater fish. Meat and fowls is rarely used in Kyoung-Nam province (coastal region). 2) Soups of inland area is made by most vegetables and these soup were always harmonized with soybean powder or perilla powder. 3) Various soup season with the mag-jang, mul-jang sauce, hab-ja-jang sauce. 4) These soups were in general to make much red pepper and much salt.