• The Journal of Fisheries Business Administration
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• v.47 no.3
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• pp.53-69
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• 2016

The purpose of this study is to explore the ecosystem service and benefit indicators of natural seaweed beds. Ecosystems of natural seaweed beds provide a wide range of services and benefits to human society including provisioning services, regulating services, supporting services, and cultural services. Indicators for each of the ecosystem services are chosen by marine plants ecologists and as follows. Ecosystem indicators of natural seaweed beds for provisioning services are well-being food(amount of seaweed harvested/amount of fish landed, fish biomass, area of natural seaweed beds, the number of species, contribution to the second production), raw materials(amount of biomass by breed, amount of aquaculture feed), genetic resources(amount of genetic material extracted, amount of genetic material contained by age and habitat), and medicinal resources(amount of medicinal material extracted). Ecosystem indicators of natural seaweed beds for regulating services are air purification(amount of fine dust/NOx or $SO_2$ captured), climate regulation(amount of $CO_2$ sequestered), waste treatment(amount of N, P stored, biochemical degradation capacity COD), and costal erosion prevention(length and change of natural coast line, amount of sediment prevented). Ecosystem indicators of natural seaweed beds for supporting services are lifecycle and maintenance(primary production, contribution to the second production) and gene pool protection(amount of compositional factors in ecosystem, introduced species). Ecosystem indicators of natural seaweed beds for cultural services are recreation and tourism(the number of visits of an area) and information for cognitive development(amount of time spent in education, research and individual learning about ecosystem of natural seaweed beds).

• ALGAE
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• v.22 no.3
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• pp.209-219
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• 2007

Marine algal flora and community structure of medicinal seaweeds were examined at Kkotji of Taean Peninsula, Korea from May 2005 to January 2006. Seventy-nine seaweeds including 42 medicinal algae and one marine plant were identified. Sargassum thunbergii was the representative alga occurred at all seasons and shore levels. The dominant medicinal seaweeds were perennial S. thunbergii, Neorhodomela aculeata, and Corallina pilulifera, and ephemeral Monostroma grevillei, Porphyra yezoensis, and Ulva pertusa. Their vertical distribution were N. aculeata – P. yezoensis, M. grevillei, and U. pertusa – C. pilulifera from high to low intertidal zone. The average biomass of medicinal seaweeds varied from 34.17 g m–2 in spring to 56.41 g m–2 in summer. At Kkotji shore, the opportunistic species (Enteromorpha, Ulva, and Cladophora) and turf-forming algae (Caulacanthus okamurae and Gelidium divaricatum) were easily observed. Such fast growing ESG II (ecological state group) was 87.50% and slow growing perennial algae, ESG I was only 12.15%. Also, diversity index (H’) and dominance index (DI) indicate that the seaweed community of Kkotji is unstable. Therefore, Kkotji rocky shore should be more protected from human activities such as turbulence and eutrophication in order to maintain species diversity and abundance of medicinal seaweeds.

• ALGAE
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• v.37 no.3
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• pp.227-237
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• 2022

Knowledge on the seaweeds of eastern Sorsogon in the Philippines is uneven. Not only is eastern Sorsogon among the areas of high seaweed diversity but locals there have interacted with seaweeds for ages. Despite seaweeds' assumed importance to Sorsoganon, ethnobotanical records are missing. In this study, we documented the traditional knowledge on seaweed use and determined the rate of knowledge transmission among the locals of eastern Sorsogon. Vernacular names and modes of preparation were given of the 12 identified species bearing culinary and medicinal importance. Ten species were eaten while three were used therapeutically. Based on ethnobotanical indices, Caulerpa chemnitzia ecad turbinata and Gelidiella acerosa were the most important seaweeds. The least cited was Caulerpa racemosa. Our study demonstrated that most of the seaweed resources in eastern Sorsogon remain largely untapped, as the identified ethnotaxa were only about 5% of the total seaweed species diversity reported for the area. The seaweed knowledge in eastern Sorsogon appeared to be homogenous across age groups with primary sources of knowledge biased towards female relatives (mothers and grandmothers) and to children as inheritors. Cessation of seaweed knowledge may come at a potential cost, as a significant fraction of the population did not transmit their knowledge to others. Our study furthered the interest in providing sophisticated resource management recommendations that consider the relationships of traditional and scientific knowledge of seaweed selection and use in eastern Sorsogon and beyond.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.05a
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• pp.153-154
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• 2000

Many bioactive photosensitizers have been isolated from plants and some of theses possess antiviral activities which, depend on UVA(320-400nm) and visible light. Many complex quinonoids have been isolated from plants and recently some of them, such as hypericin and hypocrellin, have been shown to possess light-dependent antiviral activities. these compounds only exert their desired biological activities in the presence of long wavelength ultra-violet UVA but these activities are also strongly influenced b chemical structure(Hudson et al, 1995). the importance of light in the use of certain medicinal plant extracts has been appreciated, if not understood, for centuries. Also, many seaweed extracts will effect photo(UVA, visible light) for algicidal activity. (omitted)

• Journal of Food Hygiene and Safety
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• v.15 no.2
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• pp.88-94
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• 2000

The purpose of this presents is to investigate, using natural food extracts(Green tea; Camellia sinesis, Du'chung; Eucommia ulmoides Oliver, Eu sung cho; Houttuynia cordate Thunb, Sam back cho; Saurus Chinensis, Baek hwa sa seal oho; Oldenladia diffusa Roxb., Laver; Porphyra tenera, Sea mustard; Undaria pinnatifda and Sea staghorn; Condium fragile) and juices(Sweet pepper; Capsicum annuum var. angulosum, Kale; Brassia oleracea var. acephala, Cucumber; Cucumis sativus, Onion; Allium cepa, Tomato; Lycopericon esculentum, Maesil; Prunus mume, Plum; Prunus salicina and Grape; Vitis spp.), the effect of natural plant components on the nitrite-scavenging under the different levels of pH. From the above mentioned extracts and juices, the content of vitamin C was detected, containing 65.1∼77.1 mg/100g, at the highest level in the Green tea, and followed by vegetables and fruits in order. The nitrite scavenging effect of teas, medicinal plants, and seaweed extracts, in the reaction system under the condition of pH 1.2, were 57.0∼100%, 50.0∼100%, and 18.0∼99.0%, respectively. Especially, the nitrite was scavenged to the level of 100%1 when 10 ml of kale and 5 ml of maesil Juice

• Journal of Food Hygiene and Safety
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• v.15 no.2
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• pp.95-100
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• 2000

The effect of natural foods, utilizing the extracts or juices of teas(Green tea; Camellia sinesis, Du'chung; Eucommia ulmoides Oliver), medicinal plants(Eu sung cho; Houttuynia cordata Thunb, Sam back cho; Saurus Chinensis, Baek hwa sa seal cho; Oldenladia diffusa Roxb.) seaweeds(Laver; Porphyra tenera, Sea mustard; Undaria pinnatifida, Sea staghorn; Condium fragile) and vegetables(Sweet pepper; Capsicum annuum var. angulosum, Kale; Brassia oleracea var.. acephala, Cucumber; Cucumis sativus, Onion; Allium cepa) and fruits(Tomato; Lycopericon esculentum, Maesil; Prunus mume, Plum; Prunus saticina and Grape; Vitis spp.)on the inhibition of N-Nitrosodimethylamine(NDMA) formation was investigated from the various conditions. The inhibition effect was observed in vitro using the reaction fluids of pH 1.2, 4.2 and 6.0. From the teas and medicinal plants, there was a positive response of NDMA formation; however, From the seaweed extracts, there was a negative response of the inhibition effect of NDMA formation, and as the pH of reaction fluids and the amount of materials increase, the inhibition of NDMA formation was strengthened. The inhibition ratios by the level of pH are as follows: under pH 1.2 vegetable juice were 57.6∼99.7% and fruits were 35.9∼99.7%; under pH 4.2 vegetable juice were 55.0∼97.5% and fruits were 21.3∼96.8%. All of the materials observed has been proved and shown the inhibition effect of NDMA formation.

• Journal of the Korean Society of Food Science and Nutrition
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• v.42 no.8
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• pp.1263-1269
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• 2013

This study was conducted in order to investigate the inhibitory effects of natural materials on histamine production in mackerel. Antimicrobial activities on Photobacterium phosphoreum of medicinal herbs and seaweeds were investigated using the paper disc assay and MIC (minimum inhibitory concentration) test. According to the results, Sargassum sagamianum and Ecklonia cava ethanol extracts exhibited antibacterial activity. In particular, Sargassum sagamianum ethanol extract showed excellent antibacterial activity at 0.015625 mg/mL by the MIC test. Anti-histamine release activities of natural materials were further investigated by examining their inhibitory effects on histidine decarboxylase (HDC) activity in the crude enzyme preparation from Photobacterium phosphoreum. The ethanol extracts of Ecklonia cava and Eisenia bicyclis exhibited the strongest HDC inhibitory activity, with 32% and 22%, at a concentration of 1 mg/mL, respectively. Therefore, natural materials may reduce histamine poisoning through decrease of histamine production in mackerel.

• Journal of Marine Bioscience and Biotechnology
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• v.12 no.2
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• pp.123-130
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• 2020

Cancer is an unfavorable human disease, and the treatment commonly have side effects and can be ineffective. Since exploration and development of cancer treatment drugs is particularly demanding, this study aimed to investigate the anticancer activities of Polysiponia morrowii extract s (PME) on CT-26 and HeLa cells. The results showed that PME inhibited cell proliferation in a dose-dependent manner, with IC50 values of 41.04% in CT-26 and 48.51% in HeLa cell cultures. Moreover, cytological observation using Hoechst 33342 staining assay showed typical apoptotic morphology in both cancer cells, and production of sub-G1 DNA was induced by PME treatment in a dose-dependent manner, with 34.41% in CT-26 and 46.01% in HeLa cell cultures. These findings suggest that PME may have potential preventive effects or medicinal value in the treatment of colorectal and cervical cancers.

• The Journal of the Korea Contents Association
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• v.6 no.11
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• pp.65-73
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• 2006

The purpose of this study is to suggest guidelines for drawing and keeping customers through knowing function of herbal and food. Customers have known herbal foods to high nutritional foods, prevention of high blood pressure, heart disease, and obesity. Also, people recognized highly garlic which has function prevention cancer, brown seaweed which is controlled blood pressure, and ginkgo nut which is helpful for asthma, detoxication. They know specifically function of herbal materials such as mugwort, ginseng, and royal golly. The guidelines are as followed. The first, seasonal herbal tea provide in stead of water like medicinal foods. The second, various cereals, Chinese herbal materials, and vegetables are added to the main rice. So it can make to eat everyday like nutrition rice which is mixed with garlic and ginkgo. The third, specific function food' and herbal's should be explained on the menu. Therefore, it make attract customer's curious and interest.

• Journal of Mushroom
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• v.17 no.4
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• pp.275-283
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• 2019

Sparassis latifolia is a fungus abundant in β-glucan and amino acids and is highly valued as a medicinal mushroom. Among amino acids, γ-aminobutyric acid (GABA) is a free amino acid and has biological effects, such as increase/decrease of hypertension, improvement of cerebral blood flow, and prevention of dementia. In this study, biological elicitors were used to increase bioactive substances as a biofortification method. Sodium alginate extracted from seaweed (Sargassum horneri, Sargassum fulvellum, Sargassum fusiforme) were used as the elicitor. The levels of β-glucan and GABA in the mycelium and fruiting body grown by adding the elicitor to the medium were investigated. Addition of sodium alginate positively affected GABA production and negatively affected the β-glucan production in these fungi. Sodium alginates extracted from S. fulvellum induced the highest increase in GABA in the mycelium and fruiting bodies. Moreover, we investigated the effects of the extracts from mycelium and fruiting bodies on dendrite development in primary cortical neurons. We found that the extract from the fruiting bodies of sodium alginate treated fungi with increased levels of GABA inhibited the dendrite outgrowth of excitatory neurons, but not inhibitory neurons.