• Journal of agricultural medicine and community health
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• v.20 no.2
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• pp.187-195
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• 1995

Hwamunsok(mat with flower design) is a special product of Kanghwa, which is made up of cyperus exaltatus. According to Allergy, cyperus exaltatus is one of the inhalant allergens and provokes respiratory symptoms and signs. There have been few reports about respiratory allergic disease or contact dermatitis occurring in farmers who cultivate the cyperus exaltatus or manufacture Hwamunsok with it. We studied the relationship between allergic symptoms and exposure to cyperus exaltatus. First, we questioned 141 voluntaries living in Kangwha on the symptoms of contact dermatitis, allergic rhinitis and bronchial asthma. Secondly, open tests with cyperus exaltatus were done to permitted 73 voluntaries. Patch tests with the European standard series(23 antigens) were only done to exposure 49 subjects to cyperus exaltatus. The results were as follows : 1. As the manifestation rate of allergic symptoms by age, its of 60 years old over in male showed 333 per 1,000 persons. Its of 50 years old in female showed 412 per 1,000 persons. Those age groups in both genders exhibited the highest manifestation of allergic symptoms than all other age groups. Also, if age and sex were adjusted with the rural population of Kanghwagun('93 base population), the manifestation rate of allergic symptoms in male showed 283 per 1,000 persons. Its in female and totals of study populations showed which is each 206 and 234 per 1,000 persons. Specially, it showed that statistics significantly(p=0.002), exposured subjects by cultivation of cyperus exaltatus & manufacture of Hwamunsok have experienced symptoms of contact dermatitis more frequently than unexposured subjects. Secondly, it tested statistics significantly that the risk factor as manifestation of allergic symptoms was the exposure of cyperus exaltatus's allergen(p=0.024). The manifestation risk of allergic symptoms in exposure groups was 3.73 times higher than unexposured subjects. Thirdly, positive reactions in open tests with cyperus exaltatus were higher in exposured subjects than non-exposured subjects. After 72 and 96 hours, positive reactions in open tests were all 10 subjects(20.4%). Also, after 1 week, positive reactions were 8 subjects(16.4%). In conclusion there is a close relationship between contact dermatitis and exposure to cyperus exaltatus while cultivating it and manufacturing Hwamunsok. Therefore, various studies should be continued and a health education program undertaken on contact dermatitis with those who were be engaging in Hwamunsok's manufacture.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.10a
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• pp.20-20
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• 2019

Sedge family is second largest family in the Korean flora with more than 240 taxa, following Aster family (about 300 taxa). Although high species diversity, a very limited number of taxa has been utilized for ethnobotanical usages. In the study, previous researches on Cyperaceae ethnobotanical information are documented and analyzed for future research directions on the taxa. A total number of seven taxa has been used for medicinal, food, and material purposes: Carex boottiana Hook. & Arn., Cyperus amuricus Maxim., Cyperus esculentus L., Cyperus exaltatus Retz., Cyperus rotundus L., Eleocharis kuroguwai Ohwi, and Bolboschoenus maritimus (L.) Palla. Underground parts such as tubers are used with medicinal purpose, and aboveground portions such as leaves and stems provide materials for various tools and foods for people and animals. They are all native to Korea, except C. esculentus, which is introduced from Mediterranean areas for anti-erosion materials. The ethnobotanical value of C. esculentus has been well recognized from ancient times, for example, starch grains in USA (excavations at the Mashantucket Pequot Reservation) and Tiger nut milk (Horchata de chufa in Spain). Among material sources, C. exaltatus has a long history in the Korean peninsula from Three Kingdoms of Korea (57 BC~668 AD). C. rotundus is distributed widely in Asia, Africa, Europe, and America, and utilized for medicines, food, and materials. In addition, Eleocharis kuroguwai is only one taxon utilized for ethnobotanical uses among fifteen Eleocharis Korean native species. The number of species with ethnobotanical uses is small in sedge family, but the family has long been utilized accompanying long human history. Cyperus papyrus L., the source of papyrus paper (Egypt in the Nile Delta), is also a member of sedge family. Sedge family has contributed to human societies in various aspects but, the cultural, botanical, ecological values of family members have been underestimated.

• Korean Journal of Environmental Agriculture
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• v.7 no.2
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• pp.111-116
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• 1988

The aquatic plants were cultivated in pots containing pig waste water, adjusted to three levels of $NH_4-N$ concentration 50, 100 and 200ppm. The aquatic plants were Eichhornia crassipes solms-laub, Monochoria korsakowii Regel et maack, Zizania caduciflora, Typha orientalis, Acorus asiaticus, Cyperus exaltaus, Colocasia antiquorum var. Yield, content and amount of nitrogen and phosphorus absorped by plants, and growth status were investigated. The results obtained are as follows. 1. The content and removal amount of nitrogen and phosphrus by plants were the highest in Eichhornia crassipes solms-laub. 2. Yield of dry matter in plants in 100ppm $NH_4-N$ was in the order of Eichhornia crassipes solms-laub>Zizania caduciflora>Typha orientalis>Monochoria korsakowii Regel et maack>Acorus asiaticus. 3. The removal amount of nitrogen by plants in the 100ppm $NH_4-N$ was in the order of Eichhornia crassipes solms-laub>Zizania caduciflora>Monochoria korsakowii Regel et maack>Typha orientalis>Acorus asiaticus>Colocasia antiquorum var>Cyperus exaltatus. Removal amount of phosphorus was in the order of Eichhornia cras sipes solms-laub>Monochoria korsakowii Regel et maack>Zizania caducilora>Typha orientalis>Acorus asiaticus> Cyperus exaltatus>Colocasia antiquorum var. 4. Concentration causing growth damage was 200ppm of $NH_4-N$ in Eichhornia crassipes solms-laub, Zizania caduciflora and Typha orientalis and 100ppm in Monochoria korsakowii Regel et maack and Acorus asiaticus. 5. Nitrogen content was the highest in leaf and phosphorus content was the highest in float of the water hyacinth. 6. The number of panicles of the water hyacinth increased by 752 pieces and dry matters were about 5,000kg/l0a during one year.