• Journal of the Society of Cosmetic Scientists of Korea
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• v.44 no.3
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• pp.335-341
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• 2018

This study was carried out to evaluate the possibility of willow plants (the genus Salix) as a cosmetic material. DPPH radical scavenging abilities of 70% ethanol extracts of S. gracilistyla, S. pseudolasiogyne, and S. koriyanagi were significantly increased compared to control. In addition, the treatment of three species of willow plant extracts significantly inhibited the production of nitric oxide (NO) in RAW 264.7 cells, indicating that they had anti-inflammatory activity, and all of them had collagenase inhibitory activity. Among them, the extracts of S. gracilistyla extracts exhibited the highest collagenase inhibitory activity. As a result of analyzing the collagenase inhibitory activity against the solvent fraction of S. gracilistyla extracts, water and butanol fractions showed the highest collagenase inhibitory activity. These results suggested that S. gracilistyla among the willow plants had high collagenase inhibitory activity, and thus it can be utilized for cosmetics as an effective functional cosmetic material in the future.

• River and Culture
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• v.3 no.1
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• pp.84-87
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• 2007

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2003.03a
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• pp.116-118
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• 2003

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2003.03a
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• pp.113-115
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• 2003

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.05a
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• pp.422-423
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• 2000

해양의 저서동물은 이동성이 없어 오염 지표종으로 사용되는 종류가 많으며, 특히 환형동물문의 다모류 가운데 그 종류가 많다. 대표적인 경우가 버들갯지렁이과 (Capitellidae)에 속하는 종들이며, 이들 가운데 Capitella capitata는 전 세계 유기물 오염해역, 저층 빈산소 수역 (0.2∼2.5 m1/1) 및 유류 오염해역 둥에서 가장 잘 출현하는 종으로 알려져 있다 (Pearson and Rosenberg, 1978). (중략)

• Journal of Life Science
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• v.14 no.3
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• pp.509-513
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• 2004

Inhibitory activities of 58 methanol extracts, which were prepared from different parts of 55 kinds of edible and medicinal plants, against human thrombin were evaluated. Analysis of the anti-coagulation activity determined by thrombin time enabled us to select 8 herb extracts as possible sources of anti-thrombosis agent. Further analysis of anti-thrombosis activity determined by activated partial thromboplastin time and fibrinolytic activity, and heat stability and inhibition against other proteolytic digestive enzymes provided new information that Pimpinella brachycarpa, Lysimachia clethroides, and Salix gracilistyla could be used as a potential anti-thrombosis agent. Our results suggest that edible and medicinal plants could be the potential source of thrombin inhibitor.

• Proceedings of the Korea Water Resources Association Conference
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• 2009.05a
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• pp.1979-1983
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• 2009

DMZ권은 지난 반세기 동안 출입이 통제된 덕분에 다양한 생물종의 서식공간이자 생명벨트로 형성되어 있다. 서부 DMZ권에는 한강 하구와 임진강 유역의 성동 습지와, 장단 습지, 문산 습지, 임진각 습지 및 초평도 습지가 있으며, 이곳에는 멸종위기종 1급인 황새, 노랑부리저어새, 저어새 등 8종과 2급인 큰고니, 개리 등 21종, 황조롱이, 매, 흑두루미 등 천연기념물 22종이 서식하고 있다. 본 연구에서는 서부 DMZ권을 중심으로 현지 조사를 통해 하천환경과 습지 현황을 조사하였다. 임진각 습지는 임진강의 건천화 때문인지, 아님 썰물 때문인지 유량은 그리 많지 않았다. 덕분에 갯벌이 많이 드러나고 재두루미와 개리 등이 눈에 뜨였다. 장단반도는 절반은 농경지, 절반은 갈대 군락지이다. 군락지에는 갈대뿐만 아니라 달뿌리풀, 갯버들도 서식하고 있었다. 농경지에는 재두루미 가족이 섭식하고 있고 임진강에는 기러기 약 2천 이상이 발견되었으며, 고라니도 다수가 조사되었다. 최근에는 136마리가 조사되었다. 초평도의 습지에서는 물새가 탐조되었다. 습지는 생태계의 훌륭한 서식처의 역할을 하며, 수질 개선과 기후 조절 기능도 갖고 있으며, 생태 관광에도 기여를 하고 있음이 밝혀졌다.

• The Korean Journal of Ecology
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• v.24 no.5
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• pp.289-296
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• 2001

Community structure of the Salix and physico-chemical properties of sediment were studied from July to September, 2000 in Nam-River watershed for the purpose of inquiring niche breadth, niche overlap and the environmental factors affecting the distribution of Salix species. Among eleven Salix species, the dominant species was Salix koreensis, while the rests were such order as S. nipponica, S. gracilistyla and S. glandulosa by the relative abundance based on the basal area. Mean values and the ranges of sediment properties such as pH, conductivity, water content, organic matter, total nitrogen, available phosphorus, clay, silt and sand were 5.3∼6.3, 14∼351 μmho/cm, 0.1∼3.4%, 0.5∼7.3%, 0.01∼0.2%, 0.1∼0.4 mg/100 g, 1.7∼22.0%, 0.2∼40.8%, 39.7∼98.0%, respectively. Altitude and annual mean temperature of each site were 20∼620 m and 9.3∼13.0℃, respectively. Niche breadth was estimated by considering the differences of the soil texture as the differences of state of source. S. glandulosa was the broadest at the level of 0.77, while the rests were such order as S. koreensis, S. nipponica were 0.69, 0.54, respectively. The niche overlap showing the level of interspecific competition was the largest as 0.94 between S. purpurea var. japonica and S. purpurea var multinervis, while S. graciliglans and S. purpurea var. japonica 0.92, S. graciliglans and S. purpurea var. multinervis 0.87, respectively. According to the analysis of the correlation between eleven species of Salix and eleven environmental factors, S. gracilistyla showed the negative correlation with conductivity, water content, total nitrogen, clay, silt and annual mean temperature, and showed the positive correlation with total nitrogen, sand and altitude. S. graciliglans showed the negative correlation with conductivity, water content, organic matter, clay, silt and annual mean temperature, and showed the positive correlation with total nitrogen, sand and altitude. S. nipponica showed the negative correlation with sand and altitude, and showed the positive correlation with water content, total nitrogen, clay, silt and annual mean temperature. S. nipponica showed the opposite results of S. gracilistyla. Soil texture, total nitrogen, water content, altitude and annual mean temperature were affecting the distribution of Salix species in Nam-River watershed.

• Ecology and Resilient Infrastructure
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• v.2 no.2
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• pp.154-160
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• 2015

This paper presents the field investigation of deposition and erosion relief of a riverfront using vegetation. The results obtained were as follows: Phragmites japonica showed 0.2 m of deposition and 0.3 m-0.4 m of erosion relief of river front by the critical velocity of 1.0 m/s-1.2 m/s. P. communis showed 0.1 m-0.4 m of deposition and 0.2 m-0.3 m of erosion relief by the critical velocity of 0.6 m/s-0.7 m/s. Salix gracilistyla showed 0.1 m-0.2 m of deposition and 0.4 m-0.5 m of erosion relief by the critical velocity of 1.2 m/s-1.4 m/s. Miscanthus sacchariflorus showed 0.1 m-0.4 m of deposition and 0.1 m-0.2 m of erosion relief by the critical velocity of 0.6 m/s-0.7 m/s. S. gracilistyla had the greatest role, while M. sacchariflorus had the lowest role for erosion relief. These results showed that aquatic plants had an effective role in sustaining a stable channel.

• Korean Journal of Environmental Biology
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• v.17 no.4
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• pp.449-457
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• 1999

Removal efficiency and potential of N and P by Salix gracilistyla Miq. are determined in continuous flow tanks as a function of hydraulic retention time (HRT, days) and nutrient concentration (NC). Results show that the removal efficiency was longer HRT and lower nutrient solution. And also removal potential was higher at shorter HRT and higher nutrient concentration, and the regression equations were estimated. Mean above ground biomass of Salix gracilistyla Miq. in the middle reaches of Suip stream was 4880.81 g/$m^2$, and estimated removal by this vegetation from biomass and estimated equation above were 0.49~15.49 NH$_4$-N kg/day, 5.83~405.39 NO$_3$-N kg/day, 7.57~23.22 PO$_4$-P kg/day in Suip stream, respectively when HRT was 0.59~5.21, inflow concentration was 0.05~0.4, mg/L NH$_4$-N, 1.42~11.36 mg/L NO$_3$-N, 0.1~0.27 mg/L PO$_4$-P. According to this study, it is concluded that Salix gracilistyla Miq. are contribute by their high biomass and for water quality improvement of stream through nutrient removal potential.