• 제목/요약/키워드: Ligustrum japonicum Thunb

검색결과 7건 처리시간 0.016초

大氣汚染地域 適應 樹種 選拔에 關한 硏究 (A Study on the Selection of Adaptable Tree in Air Pollution Area)

  • 朴晥澈
    • 한국대기환경학회지
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    • 제7권1호
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    • pp.55-65
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    • 1991
  • The study was performed to select a adaptable tree species under stressed field conditions where there are a industrial plants operating with a number of smoke stacks emitting pollutants, such as hydrogen fluoride and sulfur dioxide. As a result of the study, a tree species selected are due to construct a forest belt in a zones near industrial plants to reduce the concentrations of air pollutants. The concentrations of atmospheric hydrogen fluoride and sulfur dioxide were very higher at experimental sites near industrial plants (air-pollution sites) than at control site. The leaves of 7 tree species grown at air pollution sites contained more sulfur and, specially, fluorine than at those control site. Among the tested tree species, Ligustrum japonicum Thunb. and Euonymus japonica Thunb. grown at air pollution sites did not at all break out a foliar injury but appeared to be healthy, as well as those grown at control site. Acer pseudo-sieboldianum Kom., Pinus virginiana Mill., Larix leptolepis Gordon., Pinus koraiensis Sieb. et Zucc., Pinus strobus L., Picea abies Karst and Ligustrum obtusifolium Sieb. et Zucc., however, showed a severe fluoride-type foliar injury such as necrosis on tip or margin of leaves, etc. Fluorine found in leaves was proved to be correlated to sulfur found in leaves whereas index of foliar injury hadn't a good correlation to pollutants found in leaves. It appears that Euonymus japonica Thunb., Ligustrum japonica Thunb., Platanus acerifolia Willd, Chamaecyparis pisifera Endl., Populus tomentiglandulosa T. Lee and Sophora japonica L. grown at both experimental sites had a high value of percent survival whereas Pinus virginiana Mill., Pinus koraiensis Sib. et Zucc., Koelreuteria paniculata Laxm. and Alnus hirsuta Rupr. had an extremely low value of that. In comparison with control site, the percent tree height increments in Chamaecyparis pisifera Endl., Ligustrum japonicum Thunb., Quercus acutissima Carruth., Populus tomentiglandulosa T. Lee, Pinus thunbergii Parl and Euonymus japonica Thunb. and the percent upmost root diameters in Populus tomentiglandulosa T. Lee, Chamaecyparis pisifera Endl., Euonymus japonica Thunb., Ligustrum japonicum Thunb., Betula platyphylla var. japonica Hara and Pinus thunbergii Parl. cultivated at air polluted sites showed very high value above 90%, respectively. A significant negative correlation (r=-0.662) was recognized between the index of foliage injury and the percent collective character, which was the mean of tree characters such as percent survival, percent tree height increment and percent upmost root diameter increment which compared to those at air polluted site with those at control site. Based on the percent collective character Ligustrum japonicum Thunb., Euonymus japonica Thunb., Chamaecyparis pisifera Endl., Populus tomentiglandlosa T. Lee, Betula platyphyla var. japonica Hara and Platanus occidentalis L. have large value about 90%, respectively. Therefore, the results indicate that this tree species are adaptable species in air polluted regions. For better understanding of the adaptable tree species, furthur studies concerning the effects of various air pollutants on the tree growth are required.

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광나무 열매 추출물을 이용한 견직물의 염색성 (Dyeability of Silk Fabrics Using Extracts of Ligustrum Japonicum Thunb Fruit)

  • 이혜선;고성미
    • 한국염색가공학회지
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    • 제22권1호
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    • pp.71-76
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    • 2010
  • In this study the optimum dyeing conditions and blocking effect of UV deodorization efficiency of Ligustrum japonicum Thunb were investigated. Colorants were water-extracted from Ligustrum japonicum Thunb fruit and freeze-drided to obtain colorants powder. The effects of dye concentration, dyeing temperature, dyeing time, and the number of dipping count were studied. Fastness to dry cleaning, rubbing, perspiration, and light were measured according to KS K 0644, KS K 0650, KS K 0715 and KS K 0700, respectively. In order to examine the dyeability according to dyeing conditions, reflectance of fabrics were measured by using UV/VIS spectrophotometer. The bath ratio was 1:20. Dyeing concentration was 100, 200, 300, 400 and 500% on the weight of fiber. Dyeing time was 20, 40, 60, and 80 minutes. Dyeing temperature was 20, 40, 60, 80, and $100^{\circ}C$. The infrared high pressure dying machine was used. As dyeing concentration increased, dye adsorption increased up to 400% and it slowed down. Dye uptake was increased with raising themperature up to $80^{\circ}C$ and it slowed down. Dye adsorption occurred rapidly at first 20 minutes and then it slowed down and reached almost maximum dye uptake at 60 min. Dye uptake increased by repeated dyeing. Therefore, it is considered that optimum dyeing condition is 400%(o.w.f.), $80^{\circ}C$, 60 min. And repeated dyeing improves dye uptake. Color fastness to dry cleaning and rubbing was good, but light fastness and perspiration fastness was not good. Blocking effect of ultraviolet radiation and deodorization efficiency was good.

Cytotoxic Triterpenoids from the Fruits of Ligustrum japonicum

  • Thi Ngo, Quynh-Mai;Cao, Thao Quyen;Woo, Mi Hee;Min, Byung Sun;Weon, Kwon-Yeon
    • Natural Product Sciences
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    • 제24권2호
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    • pp.93-98
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    • 2018
  • Medicinal plants are potential sources of anticancer agents screening. A large number of phytochemicals, including triterpenoids, have been reported to have significant cytotoxic effects on cancer cells. From the fruits of Ligustrum japonicum Thunb., thirteen triterpenoids (1 - 13) were isolated and evaluated for their cytotoxic activity against Hela and HL-60 cells. As results, 8 (oleanolic acid) showed significant effects on Hela with $IC_{50}$ values of $5.5{\mu}M$, and moderate effects on HL-60 cells with $IC_{50}$ values of $55.9{\mu}M$. Meanwhile, 10 (oleanderic acid) and 11 ($3{\beta}$-acetoxy-urs-12-en-28-oic acid) exhibited moderate inhibitory effects on Hela with $IC_{50}$ value of 55.0 and $68.8{\mu}M$, respectively. Moreover, 10 showed cytotoxic effect on HL-60 cell line with $IC_{50}$ value of $63.9{\mu}M$. To our knowledge, this is the first report that oleanderic acid was isolated from L. japonicum and investigated in cytotoxic effects on Hela and HL-60 cells.

적색계 천연염료를 이용한 견직물 무매염 염색의 염색성 (Color Characteristics of Silk Fabrics Dyed with Natural Red Dyes Without a Mordant)

  • 김효진;이주현
    • 디지털융복합연구
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    • 제16권12호
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    • pp.593-602
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    • 2018
  • 본 연구의 목적은 적색계 천연염료를 이용한 견직물의 무매염 염색을 다룬 국내논문들을 고찰하여 무매염 염색의 염색성을 알아보는 것이다. 연구대상인 천연염재는 자색 고구마, 봉선화, 오디, 광나무 열매, 구아바 잎, 단삼, 히비스커스 꽃, 복숭아나무 전정가지로 총 8가지이다. 염색실험의 결과는 색차식에 의하여 $L^*$, $a^*$, $b^*$, C 및 ${\Delta}E^*$와 Munsell표에 의한 H V/C, Kubelka Munk식에 따라 K/S값을 산출하여 표면색을 측정하여 살펴보았다. 염색실험 변인은 염액농도, 염색온도, 염색시간, 염색반복횟수이며, 변인의 변화에 따라 염색성과 색채특성을 알아보았다. 문헌고찰 결과, 염색실험 변인은 견직물에 대한 천연염료의 염착성과 상관관계가 있을 뿐만 아니라 적색 발현에도 상관관계가 있었다. 본 연구를 통해 천연염색 과정에서 환경오염을 일으키는 반복적인 염색이나 매염제 사용 등을 하지 않아도 적색이 다양하게 발현되고 염색성도 우수할 수 있음을 보였다.

사대공단(四大工團) 주변(周邊)의 식생(植生)에 대(對)한 연구(硏究) (Studies on the Vegetation around the Industrial Complexes)

  • 김태욱;김수인
    • 한국산림과학회지
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    • 제57권1호
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    • pp.8-13
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    • 1982
  • 본(本) 조사(調査)는 1981년(年) 7월(月) 18일(日)에서 8월(月) 11일(日) 사이에 4개(個) 공단(工團)(포항(浦項), 울산(蔚山), 온산(温山) 및 여천(麗川))을 대상(對象)으로 오염발생원(汚染發生源)으로부터 2km이내(以內)의 식물(植物)의 종류(種類)와 내연성(耐煙性) 식물(植物)의 발굴(發掘) 및 대기오염(大氣汚染)이 식물생육(植物生育)에 미치고 있는 범위(範圍)를 지표식물(指標植物)에 의(依)한 육면적(肉眠的) 방법(方法)으로 조사(調査)하였으며 얻어진 결과(結果)는 다음과 같다. 1) 4개(個) 공단(工團)에 나타난 식물(植物)의 종류(種類)는 91과(科) 6아과(亞科) 213속(屬) 290종(種)이었고 과(科) 순위별(順位別)로 보면 포항공단내(浦項工團內)에는 54과(科) 102속(屬) 126종(種)으로 콩(科) 16종(種), 벼(科) 11종(種), 장미과(科) 9종(種) 및 국화과(科) 9종(種)의 순(順)이었고, 울산공단내(蔚山工團內)에는 61과(科) 131속(屬) 158종(種)으로 국화과(科) 17종(種), 벼과(科) 16종(種), 콩과(科) 15종(種), 장미과(科) 9종(種), 마디풀과(科) 7종(種) 및 가지과(科) 6종(種)의 순(順)이었고, 온산공단내(温山工團內)에는 46과(科) 98속(屬) 113종(種)으로 국화과(科) 12종(種), 벼과(科) 12종(種), 콩과(科) 12종(種), 장미과(科) 6종(種) 및 마디풀과(科) 6종(種)의 순(順)이었고, 여천공단내(麗川工團內)에는 71과(科) 150속(屬) 188종(種)으로 장미과(科) 15종(種), 콩과(科) 15종(種), 국화과(科) 15종(種), 벼과(科) 14종(種), 마디풀과(科) 7종(種) 및 버드나무과(科) 6종(種)의 순(順)이었다. 2) 4개(個) 공단지역(工團地域)에서 조사(調査)된 내연성(耐煙性) 식물(植物)은 표(表) 1과 같다. 3) 공단지역(工團地域)에 식재(植栽)될 추자수종(推蔗樹種)은 콩과(科)에 족제비싸리, 조록싸리, 싸리, 아까시나무 및 회화나무, 참나무과(科)에 상수리나무, 졸참나무 및 굴참나무, 버드나무과(科)에 은사시나무, 능수버들, 물푸레나무과(科)에 쥐똥나무, 광나무, 자작나무과(科)에 산오리나무, 노박덩굴과(科)에 사철나무, 인동과(科)에 아왜나무 및 소나무과(科)에 히말라야시이 다이다.

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