• International Journal of Advanced Culture Technology
• /
• 제7권3호
• /
• pp.10-24
• /
• 2019

This study aimed to investigate the effects and epidermis penetration system with polymer micelle of Red Pinus densiflora extract. In the antioxidant test, the total concentration of polyphenol compounds was determined to be $137.5163{\pm}7.70mg/g$ in ethanol extract, $133.956{\pm}1.57mg/g$ in hydrothermal extract. The DPPH radical scavenging effects were $95.29{\pm}0.15%$ in ethanol extract at 1,000 mg/L. Elastase inhibition rates were $100.00{\pm}2.85%$ in ethanol extract at 2,000 mg/L. The antimicrobial effect of the ethanol extraction was higher than that of hydrothermal extractions. In the epidermal permeability experiment, it was confirmed that the permeation of the polymer micelle containing the Red Pinus densiflora's ethanol extract and cell penetrating peptides was remarkable. Here, we confirmed that ethanol extract of Red Pinus densiflora displayed excellent the effects in antioxidant test and epidermis penetration system with polymer micelle. As a result, Red Pinus densiflora extract has potential to be used as a safe and natural cosmetic material in the future.

• 한국산림과학회지
• /
• 제87권4호
• /
• pp.543-548
• /
• 1998

소나무와 해송으로부터 엽록체상의 두 유전자 psbD와 rbcL를 PCR에 의해 증폭한 후 제한효소 HaeIII를 사용해서 절단했다. 두 개의 종 특이적 엽록체 DNA 단편이 확인되었고, 이 두 개의 표지자를 이용하여 소나무(충북3호)와 해송(남난37호)의 인공교잡 가계로부터 엽록체 DNA의 부계 유전양식이 확인되었다. 인공교잡 가계에 있어서 엽록체 DNA의 부계 유전양식을 근거로 해송으로부터 소나무로의 이입교잡에 의해 생겨났다는 가설(현신규 등, 1967)이 지배적인 금강송 115개체로부터 이입교잡에 의해 유입되어진 흔적을 구명하기 위하여 해송 특이 엽록체 DNA의 존재 여부를 검색하였다. 분석에 사용된 금강송 전 개체에서 소나무에서 관찰된 엽록체 DNA(psbD와 rbeL)의 절편 분획 양상과 동일한 절편 분획 양상이 확인되었다. 본 실험의 결과로부터는, 금강송에는 해송으로부터 유입된 엽록체 게놈의 흔적을 찾아 볼 수 없었으며, 따라서 금강송을 소나무(♀)약 해송(♂)의 이입교잡종이이라고 간주할만한 확고한 증거를 제시할 수 없었다.

• The Korean Journal of Ecology
• /
• 제19권1호
• /
• pp.9-19
• /
• 1996

The model PINUSCO2 hased of physiology was creted to simulate carbon dioxide budget in a population of red pine(pinus densiflora) which is one of the dominant species in Korea. Driving forces of PINUSCO2 are global radiation, maximum and minimum air temperatures. State variables fo the model are standing crops of leaf, branch, trunk and root of the red pine population. PINUSCO2 calculates net photosynthesis of canopy and respiration of each organ with 1 hour time step. PINUSCO2 estimated the annual gross productivity, respiration and net productivity of the red pine population as 43.99, 24.55, and 19.44 ton CO2·ha-1·yr-1, respectively, at the study sity(35°58′00"N, 128°25′35"E). PINUSCO2 showed that the red pine population grew mainly in spring and fall, and that in summer daily net population productivity frequently became negative.

• Journal of the Korean Wood Science and Technology
• /
• 제39권3호
• /
• pp.244-251
• /
• 2011

본 연구에서는 소나무(Pinus Densiflora)와 잣나무(Pinus Koraensis)에 대한 연소특성을 비교 평가하였다. 두 수종은 한옥의 부재로 널리 사용되고 있으며, 그 체적밀도는 소나무가 잣나무에 비하여 상대적으로 큰 값을 가지고 있다. 목재의 연소특성은 해당 수종의 체적밀도와 밀접한 관계를 갖고 있는데 본 연구에서 방염성능에 있어서는 뚜렷한 차이를 확인하기는 어려웠지만 콘칼로리미터 시험방법에 있어서는 총 방출열량, 평균 열방출률 비교를 통하여 목재 수종의 체적밀도의 상관성을 확인하였다. CO/$CO_2$의 비로부터 알 수 있는 연소가스의 유해성은 난연처리에 의해 높아진 것으로 나타났다.

• Journal of the Korean Wood Science and Technology
• /
• 제42권1호
• /
• pp.58-67
• /
• 2014

울진산 금강송의 재질특성 조사의 일환으로 기계적 성질을 조사하였다. 종압축강도는 $36.2N/mm^2$로 국산 소나무재와 잣나무재보다 다소 낮은 값을 나타내었다. 수로부터의 거리에 따른 종압축강도는 수에서 60 mm 떨어진 지점에서 최대값을 나타내었다. 휨강도는 $76.5N/mm^2$로 나타났으며, 국산 소나무재와 잣나무재보다 다소 높은 값을 나타내었다. 그리고 수로부터 60 mm 떨어진 지점에서 최대값을 나타내었다. 전단강도는 높은 비중을 나타내었던 수 부근에서 $10.4N/mm^2$로 최대값을 나타내었으며, 80 mm 지점에서 $9.1N/mm^2$로 최소값을 나타내었다. 표면경도는 횡단면이 $43.7N/mm^2$, 방사단면이 $12.0N/mm^2$, 접선단면이 $13.7N/mm^2$으로 나타났다. 이러한 결과는 비슷한 비중을 나타낸 소나무의 표면경도 값과 유사하다. 금강송의 기계적 성질은 비슷한 비중을 가지는 소나무과 수종인 소나무 및 잣나무와 비슷하였다. 그리고 금강송의 기계적 성질은 평균연륜폭보다 비중에 의해 더욱 큰 영향을 받는다는 것을 확인할 수 있었다.

• 한국균학회지
• /
• 제37권2호
• /
• pp.130-133
• /
• 2009

The endophytic fungi were isolated from red pine trees (Pinus densiflora) that were distributed in three sites of Chungbuk, Korea. Twenty fungal isolates were isolated from 16 trees and divided into 8 groups by morphological characters. The fungal isolates were identified using the sequences of ITS region of rDNA; Lophodermium complex, Sydowia polyspora, Hymenula sp., Sistotrema brinkmannii, Septoria pini-thunbergii, Earliella sp. Lophodermium spp. were the most frequently found fungal species the across sites and firstly detected from Pinus species in Korea by molecular work.

• Mycobiology
• /
• 제29권4호
• /
• pp.205-209
• /
• 2001

The Korean sawmills have recently recognized the importance of prevention of fungal discoloration due to increased losses in revenue. Before establishing integrated control strategies of fungal discoloration, more complete knowledge about causal organisms is needed. As a first step, we initiated a through survey of fungi colonizing commercially important softwood(Pinus dens flora, Pinus koraiensis, and Pinus radiata) logs and lumber in Korea. In this paper we report results obtained from Japanese red pine(Pinus densiflora) log study. In summer 2000, fungi were isolated from Japanese red pine logs in storage, and identified based on their cultural and morphological characteristics. A total of 595 fungi were isolated, representing 21 genera and 30 species. Mold fungi, mostly Trichoderma species, were the most frequently isolating fungi, representing more than half of all isolates. Dematiaceous fungi represented approximately one fifth of the isolates, and Rhinocladiella atorvirens was the most abundant in all samples. Opiostoma species represented 7% of all isolates from cores planted on malt extract agar(MEA) and the incidence of these species doubled with the addition of streptomycin and cycloheximide to MEA. The results indicate that Japanese red pine sapwood is susceptible to colonization by a variety of fungal species. As a result, control strategies that concentrate on one fungus may have limited success because of interference from competing flora.

• Journal of the Korean Wood Science and Technology
• /
• 제34권5호
• /
• pp.1-10
• /
• 2006

The objective of this study was to elucidate the microscopic patterns of decay caused by brown-rot fungi of Tyromyces palustri and Gloeophyllum trabeum in Korean red pine (Pinus densiflora) and radiata pine (Pinus radiata) woods through light and electron microscopies. The ultrastructural changes of cell walls attacked by the two brown-rot fungi were compared in this respect. Macroscopically, radiata pine showed more ring and radial checks than Korean red pine. Microscopically, with the progress of decay, spiral checks associated with cross-field pits and bore holes in the cell wall were more remarkably numerous in the radiata pine than in the Korean red pine. In the radiata pine, G. trabeum produced more spiral checks in the cell wall than T. palustris. In the advanced stages of decay by G. trabeum, the erosions of ray cell walls were identified both in the Korean red pine and radiata pine but $S_3$ layers of tracheid walls were eroded only in the Korean red pine.

• 한국농림기상학회지
• /
• 제10권2호
• /
• pp.69-71
• /
• 2008

• 한국농림기상학회지
• /
• 제10권1호
• /
• pp.32-34
• /
• 2008