• Title, Summary, Keyword: pine needles

Search Result 198, Processing Time 0.024 seconds

Characteristics of Atmospheric Polybrominated Diphenyl Ethers (PBDEs) Deposited on Pine Needles by Age (나이별 소나무 잎에 침착된 대기 중 폴리브롬화디페닐에테르 특성)

  • Chun, Man-Young
    • Journal of Environmental Health Sciences
    • /
    • v.40 no.4
    • /
    • pp.313-321
    • /
    • 2014
  • Objectives: Pine needles are used as passive air samplers (PAS) of atmospheric persistent organic pollutants (POPs). This study was carried out in order to investigate whether pine needles can also be used as a PAS of polybrominated diphenyl ethers (PBDEs). Methods: PBDEs in one to three year-old pine needles were analyzed with HRGC/HRMS. Results: PBDEs in the atmosphere were accumulated in the pine needles. The rate of increase in concentration of lower substituted PBDEs (tri- through hepta-) in pine needles was linear. The rate of increase of the higher substituted PBDEs (octa- through deca-) was also liner, but only up to two year-old pine needles. The concentration did not increase further in older pine needles. Conclusion: Therefore, it can be concluded that young pine needles, those that are two years old or less, are recommended for use as PAS of atmospheric PBDEs.

Chemical Composition of Pine Sprouts and Pine Needles for the Production of Pine Sprout Tea (송순차 제조를 위한 송순 및 솔잎의 화학적 조성)

  • Chung, Hee-Jong;Hwang, Geum-Hee;Yoo, Maeng-Ja;Rhee, Soon-Ja
    • Journal of the Korean Society of Food Culture
    • /
    • v.11 no.5
    • /
    • pp.635-641
    • /
    • 1996
  • As a basic study for preparing pine sprout tea, chemical components in pine sprouts and pine needles were analyzed as follows: In proximate composition the contents of most components except for crude fat were different between in pine sprouts and pine needles. Moisture content in pine sprouts was higher than that in pine needles. Calcium and potassium were major minerals contained in pine sprouts and needles, and their contents in pine needles picked in December were higher than those picked in June. Soluble tannin and vitamin C contents in leaf part of pine sprouts were much higher than those in stem part and their contents in pine needles were increased according to their growth. Free sugars like fructose, glucose and sucrose were contained in both pine sprouts and needles, and their contents in pine sprouts were higher in stem part as compared that in leaf part. Although fourteen kinds of amino acids were detected in pine sprouts and pine needles, their contents were extremely low. Amino acid composition between pine sprouts and pine needles was different each other, but major amino acids contained in them were same, those are acidic amino acids such as aspartic acid and glutamic acid. Amino acid contents in pine needles were increased according to the growth. In fatty acid composition in leaf part of pine sprouts, saturated fatty acid contents were higher than unsaturated fatty acid contents, but in stem part unsaturated fatty acid contents were higher. In pine needles the amount of saturated fatty acid was increased with the growth, but the amount of unsaturated fatty acid was rather decreased.

  • PDF

Characteristics and Analysis of Natural Pine-Needles Extract (천연 솔잎추출물의 특성 및 분석)

  • Sung, Ki-Chun
    • Journal of the Korean Applied Science and Technology
    • /
    • v.21 no.4
    • /
    • pp.320-326
    • /
    • 2004
  • We have extracted the natural pine-needles to use ethanol in solvent, and could obtain the refined oil component from pine-needles extract. We have tested the antimicrobial effect from microbe experiment and analyzed with ICP/OES, GC/MS. we could obtain the next conclusion from the result of this experiment. In the first result of this experiment we could know that in case of increasing concentration of pine-needles, the number of microbe decreased more and more. Also we could know that the refined oil component of pine-needles appeared the sterilization effect of S-aureus and E-coli after 96hrs and 120hrs. So we could know that the refined oil component of appeared effect to microbe. In the second result of this experiment we could know that inorganic materials of Ca, Mg, V, Mn etcs from pine-needles detected to ICP/OES analysis and the aromatic compounds from refined oil component of pine-needles was certificated to GC/MS analysis.

Tyrosinase Activated Inhibition Effect & Analysis of Pine-Needles Extract (솔잎 추출물의 티로시나아제 활성억제 효과 및 분석)

  • Sung, Ki-Chun;Kim, Ki-Jun
    • Journal of the Korean Applied Science and Technology
    • /
    • v.22 no.1
    • /
    • pp.71-76
    • /
    • 2005
  • We extracted pine-needles using ethanol as solvent, and we obtained the refined oil component from pine-needles extract. Also we tested the tyrosinase activated inhibition effect with melanin experiment and analysed with ICP/OES and UV/VIS. Accordingly we obtained the next conclusion from the result of this experiment. From the first result of this experiment, we could know that the degree of recovery of refined oil component from pine-needles extract appeared in about 8.0%. From the second result of this experiment, we could know that the tyrosinase activated inhibition rate increased more and more in case of increasing concentration of pine-needles, green-tea, vitamine-C. Also we could know that vitarnine-C influences to tyrosinase activated inhibition contained in pine-needles. From the third result of this experiment, we could know that inorganic materials of Ca, Mg, V, Mn, etc contained in pine-needles detected with ICP/OES analysis, and the absorbance of pine-needles extract appeared very high in UV/VIS analysis.

A Study on Natural Dye Having the Effects on the Atopic Dermatitis (Part II) - Pine Needles Extract - (아토피성 피부염병변에 치료효과가 있는 천연염료 연구(II) - 솔잎 추출물 -)

  • Lee, Jung-Soon;Woo, Hyo-Jung
    • Textile Coloration and Finishing
    • /
    • v.24 no.3
    • /
    • pp.196-203
    • /
    • 2012
  • The purpose of this study was to investigate usefulness of the pine needles extract on Atopic Dermatitis(AD)-like skin lesions. To investigate the effect of pine needles extract in vivo, atopic dermatitis (NC/Nga) mice using DNCB (2.4-Dinitrochlorbenzene) was used. NC/Nga mice were challenged with DNCB during 2 weeks to develope AD-like skin lesion. After that, pine needles extract was applied to AD-like skin lesion on the backs of the NC/Nga mice during 3 weeks. The efficacy of pine needles extract in the NC/Nga mice was evaluated by measurement of the skin lesion severity(NC mouse score), the serum IgE level, epidermal thickness changes, and mast cell number. Blood was collected from the retro-orbital area and the level of IgE in the blood was measured. The epidermal thickness and mast cell number were observed by microscopic method after H&E stain. The serum IgE levels were decreased after treatment with pine needles extract. The epidermal thickness and mast cell number were decreased after treatment with pine needles extract. To conclude, the topical application of pine needles extract suppressed the progression of AD-like skin lesion.

Characteristics of PAHs Absorbed on Pine Needles (소나무잎에 침착된 PAHs 특성)

  • Chun, Man-Young
    • Environmental Analysis Health and Toxicology
    • /
    • v.23 no.3
    • /
    • pp.213-220
    • /
    • 2008
  • The characteristics of PAHs accumulated on pine needles which were used as passive samplers of atmospheric POPs were studied. Atmospheric PAHs were accumulated on pine needles. The absorbed rate of PAHs was higher in gaseous state than in particulate and is not constant. The accumulation rate did not change too much among different classes of pine trees. Therefore young pine needles is better as a passive sampler of atmospheric PAHs for short monitoring period.

Deposition Characteristics of Atmospheric PCBs by Type of Leaves in Pine Needles (소나무 종별 대기 중 PCBs의 침착특성)

  • Shin Eun Sang;Yeo Hyun-Gu;Cho Ki-Chul;Chun Man-Young
    • Journal of Environmental Health Sciences
    • /
    • v.32 no.1
    • /
    • pp.46-52
    • /
    • 2006
  • Results for the concentrations of total polychlorinated biphenyls (total PCBs) and the PCB profile with different types of leaves from four coniferous trees (pine needles) at the same sampling site are presented. Concentrations of total PCBs detected in pine needles were very similar among them regardless of their different types of leaves, which means a possibility for bio-monitoring regional contamination of PCBs. Correlation coefficients(r) of PCB congeners between pine needles were very significant (r>0.97, p<0.001), which showed that PCB congener's patterns of each pine needle were similar. Profiles of PCBs detected in pine needles showed correlation with gaseous phase PCBs in air, otherwise not with particle phase PCBs in air. Therefore, it was estimated that dry gaseous deposition was a principal pathway of PCBs accumulation in pine needles. In addition, although we analyse a different types of leaves in pine needles at the same region, they can be used to identify regional contamination patterns of PCBs for larger regions.

Depositional Characteristics of Atmospheric PBDEs on Pine Needles, Bark and Soil (대기 중 폴리브롬화디페닐에테르의 소나무 잎, 소나무 껍질 및 토양으로의 침착 특성)

  • Chun, Man Young
    • Journal of Environmental Health Sciences
    • /
    • v.40 no.3
    • /
    • pp.215-224
    • /
    • 2014
  • Objective: This study was carried out in order to determine the depositional characteristics of pine needles, pine bark, and soil used as a passive air sampler (PAS) for atmospheric polybrominated diphenyl ethers (PBDEs). Methods: All three media were sampled from the same site. The PBDE concentrations were analyzed by HRGC/HRMS, and the lipid contents were measured using the gravimetric method by n-hexane extraction. Results: The total PBDE concentration was the highest in soil (22,274.57 pg/g dry), followed by pine bark (20,266.39 pg/g dry), and then pine needles (7,380.22 pg/g dry). Pine needles contained the highest lipid contents (21.31 mg/g dry), whereas soil (10.01 mg/g dry), and pine bark (4.85 mg/g dry) contained less. There were poor correlations between lipid content and total PBDE concentrations in the media ($R^2$=0.8216, p=0.2814). Congeners BDE 47, 99, 183, 196, 197, 206, 207 and 209 showed peak concentrations. Among these, BDE 206, 207, and 209 are highly brominated PBDEs that exist as particulates in ambient air. They accounted for 81.2% [69.2 (pine needles) - 89.0% (tree bark)] of the concentration and therefore are noted as the main congener of the total PBDEs. Conclusions: It can therefore be concluded that for reducing error by improper sampling, the same species of media should be recommended for use as a PAS for atmospheric PBDEs due to the differences in depositional characteristics.

Concentration and Characteristic of PBDEs in Pine Needle and Soil of Ansung-city (안성 지역 소나무 잎과 토양 중 PBDEs의 농도 수준 및 특성)

  • Yeo, Hyun-Gu;Cho, Ki-Chul;Chun, Man-Young
    • Journal of Environmental Health Sciences
    • /
    • v.32 no.2
    • /
    • pp.111-117
    • /
    • 2006
  • Polybrominated diphenyl ethers (PBDEs) in pine needles and soil samples from rural area were analyzed in this study. Concentrations of PBDE congeners were ranged between 0.2 and 3104 pg/g DW(dry weight) in pine needles and between 2.4 and 1997 pg/g DW in soil samples. The most abundant congener both in pine needles and soil samples was BDE-209, which was related to importation and production of deca-BDE technical mixtures in Korean industry. And BDE-99, BDE-47, BDE-100 deposited in pine needles and soil samples were closely matched with the major constituents of the penta-BDE technical mixture. Those can be interpreted as an evidence that transfer of the congeners in deca-BDE and penta-BDE technical mixtures from source to pine needle and soil occurs with broadly similar efficiency. Correlation coefficient(r) of PBDE congeners deposited in pine needles and soil samples is very significant because it implies th at there has been little weathering/degradation/alteration of the congeners generated from sources during atmospheric transport or within pine needles and soil themselves.

A Study on The Sampling Error of PCBs Deposited on Pine Needles (소나무잎에 침착된 PCBs의 샘플링 오차에 관한 연구)

  • Chun, Man-Young;Kim, Tae-Wook
    • Korean Journal of Environmental Agriculture
    • /
    • v.17 no.2
    • /
    • pp.117-121
    • /
    • 1998
  • In the study to reduce the error on the method of sampling pine needles to monitor the atmospheric concentration of polychlorinated biphenyls(PBCs),it was found that: 1. Concentration of PCBs almost linearly increased from new to three-years-old pine needles, so that the biomonitoring method using pine needles canbe applied to measuring long-term contamination from air in a local area. Needles of differernt age should not be mixed in sampling but be seperately analysed .It no good idea comparing PCB concentrations of differently aged needles. 2. Concentratio n of PCBs on pine needles had nothing to do whit the indivisual and age of the pine tree. 3. Concentration of PCBs on pine needles growing avobe was lower than that on needke below. 4. Concentration of PCBs on pine needles locatied in poorly ventilative places such as needle of a forest was lower than that on needles in well-ventilated areas.

  • PDF