• Journal of the Korean Wood Science and Technology
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• 제43권3호
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• pp.374-380
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• 2015

목질 바이오매스 자원의 효율적 에너지화 방안의 일환으로 소나무와 리기다소나무를 목재펠릿으로 만들고, 그 특성을 조사하였다. 제조된 목재펠릿의 함수율, 발열량, 회분, 겉보기밀도, 내구성, 원소분석을 측정하여 비교하였다. 소나무와 리기다소나무 목재펠릿의 원소분석의 결과, 소나무는 61.42% (C), 수소 5.56% (H), 산소 32.87% (O) 그리고 0.15% (N)로 나타났으며, 리기다소나무는 61.03% (C), 수소 5.96% (H), 산소 32.83% (O) 그리고 0.18% (N)로 나타나 두 수종 간에 거의 차이가 없었다. 각 시료의 발열량은 약 19 MJ/kg로서 품질규격 1급((${\geq}18.0MJ/kg$)을 만족시켰다. 회분량의 경우 소나무가 0.50%, 리기다소나무가 0.53%로 양자 간의 차이가 거의 없었으며, 품질규격 1급(${\leq}0.7%$)을 만족시켰다. 겉보기 밀도는 소나무 펠릿의 경우 $648kg/m^3$으로 품질규격 1급(${\geq}640kg/m^3$)을 만족시켰으나, 리기다소나무의 경우 $622kg/m^3$으로 품질규격 2급(${\geq}600kg/m^3$)을 만족시켰다. 함수율의 경우 두 수종 모두 품질규격 1급(${\leq}10%$)를 만족시켰으며, 내구성의 경우 소나무 목재펠릿은 품질규격 3급(${\geq}95%$)를 만족시켰으나 리기다소나무 목재펠릿은 내구성 품질규격을 만족시키지 못하였다.

• 펄프종이기술
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• 제47권4호
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• pp.144-150
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• 2015

Stems of Pinus thunbergii Parl. grown with high salinity were analyzed for chemical characteristics. Stem of 2 years was rich in soluble compounds and stem of 3 years reduced the amount of the soluble compound. But, the lignin content have not seen a large change. Also, Klason lignins of stem of 2 and 3 years has not changed in nitrogen and hydrogen content. In Klason process, it was significantly increased the carbon concentration due to the hydrolysis of the carbohydrate. In addition, the accumulation of xylan from Pinus thunbergii Parl. with salinity treatment were increased noticeably. Finally, functional group of Pinus thunbergii Parl. with salinity treatment were not changed.

• 한국식품영양과학회지
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• 제25권2호
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• pp.188-192
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• 1996

닭을 실험모델로 Pinus strobus 잎의 메탄올 추출물 투여에 의한 콜레스테롤 저하효과를 검토하였다. 닭에 메탄올 추출물 100mg을 50% 에탄올용액 0.5ml에 녹여 2주간 매일 경구투여하였을 때, 유의한 추출물의 투여효과는 관찰되지 않았다. 두 번째 실험에서는 메탄올 추출물의 투여량을 하루 200, 350 또는 50mg으로 달리하여 2주간 경구투여하였다. 2주 후 하루 200mg을 투여한 군은 다른 군에 비하여 유의하게 낮은 혈청 콜레스테롤 농도를 나타내었으나, 투여량의 증가에 의한 부가적인 저하효과는 관찰되지 않았다. 메탄올 추출물은 여러 가지 추출용매로 재분획되었다. 그 중에서 에틸아세테이트 추출물(100mg/일)은 혈청 콜레스테롤 농도를 20%까지 감소시켰다. 이러한 결과로부터 Pinus strobus 잎의 메탄올 추출물의 투여는 닭에서 혈청 콜레스테롤 농도 저하의 개선효과가 있음이 시사된다.

• The Korean Journal of Ecology
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• 제16권3호
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• pp.275-285
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• 1993

To study allelopathic porential of naturally occurring substances emitted from Pinus koraiensis, the effects of water exrracts and volatile substances of the tree on callus induction and bacterial culture were examined. The induction and growth of callus were inversely proportional to the concentration of the extracts and of the essential oils supplemnted to Murashige and Skoog's media. However, low concentration(5μl/l) of essential oil promoted callus growth. In germiculture of several bavteria, the extracts of Pinus koraiensis markedly showed the inhibitory effects on bacterial growth. It was, therefore, confirmed that the KDICical substances of Pinus koraiensis tree clearly showed that biological toxic activity at high concentrations.

• Journal of Plant Biology
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• 제10권3_4호
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• pp.4-9
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• 1967

The aim of present study is to elucidate the effects of manganese and aluminium ions on the germination and seedling growth of Pinus banksiana and Alnus tinctoria and to estimate the limiting level of those ions in the cultivated soils. The rate of germination of Pinus banksiana was increased under the relatively low concentration of Mn and Al (100 p.p.m), however, the germinating activity was not affected. High concentration over 110 p.p.m. of Mn and Al was related to the reduced percentage of germination and seedling growth of Pinus banksiana and Alnus tinctoria. Soils sampled from various parts of Korea contained Mn as much as high level that would be harmful for the seedling growth of Pinus banksiana and Alnus tinctoria.

• The Korean Journal of Ecology
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• 제21권3호
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• pp.291-300
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• 1998

The forest vegetation of Mt. Odae based on the interspecific relationship was classified into 4 groups : Quercus mongolica, Pinus densiflora, Quercus variabilis and Patrinia saniculaefolia. Thirty-one species of Quercus mongolica group including Quercus mongolica and Acer mone, 12 species of Pinus densiflora group comprising Pinus densiflora and Spodiopogon sibiricus, 6 species of Quercus variabilis group and 4 species of Patrinia saniculaefolia were positively correlated. in the results of species ordination by principal component analysis, 7 clusters by the humidity and acidity of soil, 4 clusters by the humidity and light intensity and 7 clusters by the acidity and light intensity were formed. The plot ordination showed that the distribution of species based on the humidity, soil acidity and total organic matters was in the order of Pinus densiflora, Quercus variabilis and Quercus mongolica groups, and based on the light intensity was in the order of Quercus variabilis, Pinus densiflora and Quercus mongolica groups.

• The Korean Journal of Ecology
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• 제25권2호
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• pp.127-134
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• 2002

본 연구는 1997년 3월부터 1998년 10월에 걸쳐 이루어졌으며, 한반도 서남해 도서의 소나무림을 대상으로 식물사회학적인 방법에 의해 군락의 유형을 분류하였다. 26개의 방형구를 선정하여 결과 본 조사 지역의 소나무림은 자금-소나무군락과 방아풀-소나무군락으로 분류되었고, 각각의 군락은 털머위하위군락, 졸참나무하위군락 및 전형하위군락과 노간주나무하위군락, 윤노리나무하위군락 및 전형하위군락으로 구분되었다.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2008년도 추계종합학술대회 B
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• pp.865-869
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• 2008

This study was carried out to research antimicrobial agents from medicinal plants, Pueraria thunbergiana, Sophora flavescens, Lonicera japonica, Pinellia ternata, Dictamnus dasycarpus, Paeonia lactiflora, Angelica dahurica, Spirodela polyrhiza, Cryptotympana pustulata, Pinus densiflora, Cimicifuga heracleifolia, Bupleurum falcatum, Magnolia kobus, Artemisia princeps, Houttuynia cordata, Forsythia koreana, Arctium lappa, Castanea crenata, Aster tataricus, Citrus unshiu, Gardenia jasminoides, Ledebouriella seseloides, Hovenia dulcis, Prunus sargentii. The ethanol extracts of 24 medicinal plants were tested for the antimicrobial activity against Streptococcus mutans. The extracts of Sophora flavescens, Pinus densiflora, Cimicifuga heracleifolia, Gardenia jasminoides and Ledebouriella seseloides showed antimicrobial activity against Streptococcus mutans. The extracts of Pinus densiflora and Sophora flavescens among these medical plants showed significant antimicrobial activity against Streptcoccus mutans. These results suggested that the extracts from Pinus densiflora and Sophora flavescens could be the potential source of antimicrobial agents against S. mutans.

• Natural Product Sciences
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• 제20권3호
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• pp.206-210
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• 2014

Phytochemical constituents were isolated from Pinus koraiensis needles by open column chromatography. The structures isolated from the ethyl acetate fraction of P. koraiensis needles were elucidated as afzelin (1) and quercitrin (2) on the basis of spectroscopic analyses including $^1H$-NMR and MS. The amounts of afzelin (1) and quercitrin (2) in genus Pinus were determined by HPLC/UV analysis. Afzelin (1) and quercitrin (2) contents were highest in P. thunbergii needles. Because P. thunbergii needles contain high amounts of afzelin (1) and quercitrin (2), they have promising potential as new additives to natural medicinal products, health supplements, and beverages.

• 한국가구학회지
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• 제11권2호
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• pp.55-60
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• 2000

Liquid ammonia treatment known as the most effective Wood plasticization method, was applied to two typical domestic species, Pinus densiflora, Castanea crenata. Small specimens of 30mm width, 300mm length and two thicknesses, 5 or 10mm, were used. For 5mm thick Specimens, Pinus densiflora was quite well plasticized iker 4 hour liquid ammonia treatment, while Castanea crenata was not plasticized even after 4 hour treatment. Specimens of 10mm thick Pinus densiflora were hardly plasticized, but those with kerfs were bent somewhat easily, With the increase of liquid ammonia treatment time the thermal conductivity of Pinus densiflora increased, while that of Castanea crenata didn't Presteaming before liquid ammonia treatment didn't improve the plasticization of both species.