• Journal of Life Science
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• v.15 no.5 s.72
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• pp.767-771
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• 2005

The Camellia japonica vegetation in the Korean Peninsula was investigated by the methology of the Z-M school. The synthesis table of Camellion japonicae were arranged for association classification from 263 quadrats. The vegetation of Camellia japonica forest, classfied as an alliance includes nine new associations : Camellietum japonicae typicum Jin et Kim 2005, Machilo thunbergii-Camellietum japonicae Jin et Kim 2005, Pino thunbergii-Camellietum japonicae Jin et Kim 2005, Castanopo cuspidatae var. sieboldii-Camellietum japonicae Jin et Kim 2005, Lito japonicae-Camellietum japonicae Jin et Kim 2005, Castnnopo cuspidatae var. thunbergii-Camellietum japonicae Jin et Kim 2005, Querco acutae-Camellietum japonicae Jin et Kim 2005, Neolito sericae-Camellietum japonicae Jin et Kim 2005, Cinnamomo japonicae-Camellietum Japonirae Jin et Kim 2005.

• Landscaping Tree
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• s.95
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• pp.12-16
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• 2006

상록활엽소교목으로 겨울철에피는 연분홍색꽃은 우아하고 상록의 잎은 광택이 있고 질감이 좋아서 관상수로 많은 사람들의 사랑을 받고 있는 나무이다. 또한 예로부터 우리의 아낙네들에게 동백기름을 제공하여 피부 미용은 물론 머리의 윤기까지 책임진 우리의 미학문화와도 매우 인연이 깊은 나무이다. 동백에도 뜰동백, 흰동백, 애기동백들이 있어 현재는 많은 다채로운 원예종으로 개발되고있다. 이처럼의 우리의 사랑을 받고 있는 동백에 피해를 주는 몇몇 해충 종에 대해서 생태 및 방제법을 소개하고자 한다.

• 주택과사람들
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• s.198
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• pp.80-83
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• 2006

용인 동백지구에 각기 다른 건설사들이 지은 아파트들 가운데 유독 호텔처럼 고급스런 분위기를 물씬 풍기는 아파트가 있다. 지난 2월, 국내 유명 포털 사이트의 부동산 게시판에 15만 건이 넘는 높은 조회 수를 기록하며 네티즌들의 많은 호응을 받았던 용인 동백 현진에버빌이다. 사는것만으로도 자부심을 느낀다는 용인 동백 현진에버빌의 입주민 임왕규 님의 라이프스타일을 들여다보았다.

• 주택과사람들
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• s.206
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• pp.8-11
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• 2007

고급스러움, 편안함, 독립된 공간을 원하는 입주민을 위한 'Insperience LifeStyle'을 강조한 고품격 주거 공간이 탄생했다. 최고급 내부 설계와 자연친화적 조경 시설이 어우러진 용인 동백지구 내 초고의 주거단지인 '용인 동백 금호어울림'이 바로 그곳이다. 아파트, 단독주택 등 기존 주거 형태를 벗어나 고급 수요층의 까다로운 입맛을 만족시켜줄 '용인 동백 금호어울림'을 찾아가 보았다.

• Journal of agriculture & life science
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• v.45 no.6
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• pp.89-94
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• 2011

In this study, the amount of seedlings and seed dispersal of evergreen broad-leaved trees in forest community adjacent to Camellia japonica forest were studied to provide basic information for effective management of evergreen broad-leaved forest. Evergreen broad-leaved trees including C. japonica, Neolitsea sericea, Machilus thunbergii, Ligustrum japonicum, Cinnamomum japonicum, Litsea japonica, Pittosporum tobira showed high density and ratio of seedlings in community adjacent to C. japonica forest. Although individual densities of N. sericea, M. thunbergii, L. japonicum were low, their seedlings were distributed up to Pinus thunbergii and coniferous broad-leaved forest at a distance of 100m and 200m from C. japonica forest. Distribution of DBH class of C. japonica suggested a continuous spread from higher frequency of young individuals, N. sericea, M. thunbergii and L. japonicum did not showed an obvious trend. Seed of C. japonica mainly dispersed within 50m from mother tree.

• Journal of Digital Convergence
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• v.13 no.7
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• pp.431-436
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• 2015

To determine fusion-complex activity of Camellia extract extracted hot water, this study was conducted. Special catechin was identified at this extract by analysis of catechin. In analysis of antioxidant activity, the extract was contained antioxidant material and flower among the other parts showed high antioxidant activity. flavonoid showed most high content of Camellia. Flavonoid content was found to be $223.29{\pm}0.005mg/g$ to measured most high to stem, a control group was measured Green tea new leaves $126.14{\pm}0.005mg/g$. Total polyphenol content exhibited most high content at new leaves and flavonoid showed most high content at stem. ${\gamma}$-Amino butyric acid (GAVA) among the free amino acid showed highly at all parts.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.31 no.3
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• pp.1-11
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• 2013

In this study, based on a natural monument forest research by Camellia japonica L. Forest appointed as a natural monument located environment and growth environment and the soil environment, Camellia japonica L. Forest soil in order to analyze effects of soil in Camellia japonica L. Forest correlation analysis the results can be summarized as follows: First, a natural monument Camellia japonica L. forest located on the foot of a mountain valley or within the stream, a lot of sunshine southeast, east, and south in the direction of the share due to external factors, making it a good, but, $15{\sim}30^{\circ}$ of distributed in the soil slopes in the slope there is a risk of loss are appearing. Second, the growth of the Status of Camellia japonica L. forest represents the distribution of the uneven-aged forest diameter class. but increases the density of the upper forest trees Camellia japonica L. occurred in lower saplings do not have growth. The width of crown diameter class caused a narrow oppressed tree, the average tree height in the 8.09m, camellia in common was lower than that of tree height, variation diameter class in the width of crown distribution severe low correlations were analyzed. Third, the natural monument Camellia japonica L. forest soil composition, properties of soil pH, etc. 10 entries were analyzed components of the soil. In summary analysis properties of soil, soil pH, calcium, organic matter, magnesium was good and potassium content was insufficient, nitrogen and phosphorus were excess. Fourth, the growth condition of Camellia japonica L. forest and soil physicochemical properties, the results of the correlation analysis. magnesium, calcium, nitrogen affects the growth of Camellia japonica L. forest. Other seven kinds of items showed no effect on growth. Current Status and Future Growth of Camellia japonica L. forest soil and soil environments as well as the relationship between, Camellia Forest Factors affecting the growth of the state in terms of long-term ecological research and conservation status of settled Camellia japonica L. forest research for building materials there will be continued.

• Korean Journal of Environment and Ecology
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• v.27 no.2
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• pp.241-252
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• 2013

This study investigated plant community structure of Dongbaekdongsan(Mt.) in Jeju-do to identify character as evergreen broad-leaved forest. 20 plots(size is $20m{\times}20m$) were set up and plant communities were divided into 5 communities of Quercus glauca-Castanopsis cuspidata var. sievoldii-Ilex integra(Camellia japonica), Quercus glauca-Castanopsis cuspidata var. sievoldii-Camellia japonica, Quercus glauca-Camellia japonica, Quercus glauca-Camellia japonica-Pinus thunbergii and Pinus thunbergii-Quercus glauca by using TWINSPAN, DCA ordination, mean importance value and environmental condition. Area of Evergreen broad-leaved forest with stonny ground is covered with Quercus glauca and Castanopsis cuspidata var. sievoldii in canopy layer and Camellia japonica in the subordinate layer. Area of remaining soil's depth is covered with Pinus thunbergii. It has been alleged that Pinus thunbergii planted by human when Dongbaekdongsan(Mt.) is not selected local monuments. All of communities is predicted success to community of Quercus glauca-Camellia japonica. Shannon's diversity ranged from 1.0268 to 1.0717 in area of Evergreen broad-leaved forest and 1.2102 in area of Pinus thunbergii. 10 species of broad-leaved tree's constancy ratio is over the 80%. In future, Castanopsis cuspidata var. sievoldii and Cinnamomum japonicum can cover canopy layer, but it has low importance value. Specially high aged Camellia japonica is appeared everywhere. It has been alleged that it was touched by divinity since past. Dongbaekdongsan(Mt.) has different plant structure with another evergreen broad-leaved forest. It is hard that knowing its successional sere because it was damaged when it isn't degignate local monument. Accordingly continuous monitoring was required, successional direction and community's character is identified after forest become steady.

• Journal of agriculture & life science
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• v.44 no.3
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• pp.31-40
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• 2010

This study was carried out to offer a basis data for conservation and application of effective management of Camellia japonica stand in Hakdong, Geoje Island. Field survey was conducted at C. japonica stand, mixed stand, Chamaecyparis obtusa plantation, and Pinus thunbergii stand. Importance value of C. japonica at tree layer was highest in C. japonica stand and mixed stand, and that of C. obtusa and P. thunbergii were highest in C. obtusa plantation and P. thunbergii stand, respectively. At subtree layer, C. japonica, Callicarpa dichotoma, Neolitses serices, and Styrax japonica had the highest importance value in C. japonica stand, mixed stand, C. obtusa plantation, and P. thunbergii stand, respectively. The species diversity ranged from 0.121 to 1.589 in C. japonica stand, 0.543 to 1.540 in mixed stand, 0.276 to 1.321 in C. obtusa plantation, and 0.764 to 1.523 in P. thunbergii stand, respectively. Soil pH was 5.72 in C. japonica stand, 5.26 in mixed stand, 5.21 in C. obtusa plantation, and 5.32 in P. thunbergii stand. The content of organic matter and total N were 5.77, 0.48% in C. japonica stand, 4.41, 0.30% in mixed stand, 3.28, 0.33% in C. obtusa plantation, and 5.32, 0.28% in P. thunbergii stand.

• Journal of Applied Biological Chemistry
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• v.66
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• pp.503-511
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• 2023

The aim of this study was to investigate in vitro antioxidant activities of defatted Camellia japonica L. seeds (DCJS). The DCJS were extracted using ethanol and then fractionated with butanol (BuOH), ethyl acetate (EtOAc), chloroform, and hexane. To evaluate antioxidant activity of extract and fractions from DCJS, we investigated free radical scavenging activities such as 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS⁺), hydroxyl radical (^•OH), and superoxide anion (O₂^-) radicals. The five extract and fractions of DCJS dose-dependently increased DPPH, ABTS⁺ and O₂^- radical scavenging activities. The BuOH fraction of DCJS showed the highest free radical scavenging activities among other extract and fractions. The contents of total polyphenol and flavonoid in BuOH fraction of DCJS were 23.26 mg GAE/g and 32.39 mg QE/g, respectively. The polyphenol and flavonoids contents of BuOH fraction has highest than other extract and fractions. In addition, BuOH and EtOAc fraction of DCJS contained 102.37 and 165.05 ㎍/g of camelliaside B, respectively. Therefore, DCJS has higher antioxidant activity and may be useful as a natural antioxidant material.