• Title/Summary/Keyword: Chamaecyparis obtusa

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Surface Color and Functionality of Silk Dyed with Extract from Chamaecyparis obtusa and Mixture Extracts from Chamaecyparis obtusa and Rubia tinctorum (편백나무 잎 추출물 및 편백나무 잎과 꼭두서니 추출물로 염색한 견직물의 표면색 및 기능성)

  • Jang, Hyun-Joo;Jung, Jin-Soun
    • Fashion & Textile Research Journal
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    • v.19 no.4
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    • pp.486-492
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    • 2017
  • This study finds surface color and functions of natural dyeing from Chamaecyparis obtusa leaves which help cure skin problems such as atopic dermatitis. This study also seeks to find dyeing properties and functions of natural colorants derived from Chamaecyparis obtusa and Rubia tinctorum on silk. Dyeing properties and functions are compared between silks dyed with Chamaecyparis obtusa and silks composite-dyed with Chamaecyparis obtusa and Rubia tinctorum. The comparison examines the feasibility of developing healthy and high functional fabrics and wellness of fashion merchandises. Silk dyeing with Chamaecyparis obtuse leaves yields yellow and double coloring from Chamaecyparis obtusa; however, Rubia tinctorum yields yellow/red on silks. Silks dyed with Chamaecyparis obtusa and silks composite-dyed with Chamaecyparis obtusa and Rubia tinctorum show a high level on dry cleaning, ultraviolet protection and deodorization. Especially, the dyed silks from leaves of Chamaecyparis obtusa show a 99.7% antimicrobial effect against staphylococcus aureus ATCC 653B. Silks composite-dyed with Chamaecyparis obtusa and Rubia tinctorum are better known for medicinal herb for dermatitis, and natural colorant, Rubia tinctorum does not improve significantly functions compared with silks dyed with Chamaecyparis obtusa. However, the dyeing properties improve by composite dyeing. This implies that ways to maximize effects of tie-dyeing technique could be developed.

Effects of Chamaecyparis Obtusa Essential Oil on the Autonomic Nervous System

  • Park, Sah-Hoon;Jeong, Han-Seong;Jang, Sujeong;Kim, Seong Jin;Park, Jong-Seong
    • Journal of the Chosun Natural Science
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    • v.12 no.3
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    • pp.74-77
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    • 2019
  • The purpose of this study is to explore the effects of Chamaecyparis obtusa essential oil on the activity of autonomic nervous system. Heart rate variability (HRV), as an indicator of autonomic nervous system activity and blood pressure were measured before and after inhalation of Chamaecyparis obtusa essential oil. The systolic blood pressure was decreased by inhalation of Chamaecyparis obtusa essential oil (p<0.05). The diastolic blood pressure was not changed significantly by Chamaecyparis obtusa. High frequency (HF) power level was not changed but High frequency/Low frequency (HF/LF) ratio was decreased by Chamaecyparis obtusa essential oil (p<0.05), meaning that parasympathetic nervous system activity was not affected but sympathetic nervous system activity was decreased. These results indicate that Chamaecyparis obtusa essential oil has a modulatory effect on the autonomic nervous system activity.

A Study on the Production and Clinical Evaluation of Natural Lip Balm Using Chamaecyparis Obtusa and Lithospermum Erythrorhizon

  • Lee, Sunkyoung
    • Journal of Fashion Business
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    • v.18 no.3
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    • pp.29-44
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    • 2014
  • As there is a growing interest in natural ingredients, they are actively being studied to improve damaged skin However, the lip cosmetics are still being inadequately studied on the exposure of lips to several stimuli and easy flow of chemical on the lips into the body. This study was conducted to make a clinical evaluation on the real effect of lip balm on lips, by extracting oil from Chamaecyparis obtusa and Lithospermum erythrorhizon that are known to play a positive role on skin. The following three natural lip balms were produced: lip balm made with Chamaecyparis obtusa(LBWCO), lip balm made with both Chamaecyparis obtusa and Lithospermum erythrorhizon(LBWCOLE), lip balm made without Chamaecyparis obtusa or Lithospermum erythrorhizon(LBWICOLE). The quality of LBWCO or LBWCOLE was evaluated to be higher than that of LBWICOLE. LBWCO and LBWCOLE had the highest satisfaction and purchase intention, respectively. As stated above, Chamaecyparis obtusa and Lithospermum erythrorhizon could be the ingredients of lip balm, and they were effective in improving damaged lips. Consequently, this study will provide opportunities to explore excellent ingredients to be used in natural lip balm. Also, studying lip cosmetics using only the natural ingredients will provide opportunities to expand positive images of ingredients for producing lip cosmetics.

Dyeability and Functionality of Wool Fabrics Dyed with Chamaecyparis obtusa Leaf Extract (편백나무 잎 추출물로 염색한 모직물의 염색성 및 기능성)

  • Ko, Eunsook;Lee, Hyesun;Han, Chunghun
    • Journal of the Korean Society of Clothing and Textiles
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    • v.43 no.2
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    • pp.288-296
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    • 2019
  • This study examined the proper dyeing conditions, color fastness and functionality for wool fabrics dyed with Chamaecyparis obtusa leaf extract. FT-IR and UV-Vis spectrum analysis showed that tannin and flavonoids were contained in the extracted colorant. The dyeing of wool fabrics using Chamaecyparis obtusa leaf was good without pretreatment or mordant treatment. Optimal dyeing conditions for wool fabrics were a colorant concentration of 70%(v/v), dyeing temperature of $100^{\circ}C$, dyeing time of 100 minutes and dyebath pH of 5.8. Color fastness of dyed wool fabrics to washing, rubbing, perspiration was good, whereas light was grade 3. The UV protection rate and deodorization rate of wool fabrics dyed with Chamaecyparis obtusa leaf improved. Reduction rate of Staphylococcus aureus/Klebsiella pneumoniae were excellent at 99.9%. Therefore, it was confirmed that Chamaecyparis obtusa leaf can be used as environ-mentally friendly natural dye.

Studies on the Antioxidant and Whitening Effects of Chamaecyparis obtusa Extract (편백나무(Chamaecyparis obtusa) 추출물의 항산화, 미백효과에 관한 연구)

  • Joung, Yeo-Won;Kim, Yu-mi;Jang, Young-Ah
    • Journal of the Korean Applied Science and Technology
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    • v.37 no.6
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    • pp.1496-1506
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    • 2020
  • This study was conducted as follows in order to find out the possibility of using (Chamaecyparis obtusa) by part as a cosmetic material. Chamaecyparis obtusa was separated leaves, bark, wood, and root, and extracted with 99.9% ethanol, and the antioxidant and whitening effects of the sample were confirmed. For this, the following studies were conducted. Antioxidant evaluation was confirmed by 1 1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, 2 2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS+) radical scavenging activity. To evaluate the whitening effect, mushroom tyrosinase inhibitory activity evaluation and cytotoxicity evaluation of Chamaecyparis obtusa extract through MTT assay were conducted, and cellular tyrosinase inhibition rate was measured and melanin contents was confirmed. As a result of antioxidant activity, Bark extract among Chamaecyparis obtusa parts showed the best efficacy, and bark in B16F10 melanoma cell showed tyrosinase activity inhibition and melanin contents inhibitory effects. Therefore, it was confirmed that the ethanol extract of Chamaecyparis obtusa was developed as a natural material for safe and excellent whitening functional cosmetics.

Variation of Crystalline State in a Stem of Chamaecyparis obtusa E. (편백(Chamaecyparis obtusa E.) 수간내에서의 결정상태의 변이성)

  • Kim, Nam-Hun;Lee, Ki-Yeong
    • Journal of the Korean Wood Science and Technology
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    • v.26 no.4
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    • pp.20-25
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    • 1998
  • Radial variation of crystalline state in a stem of Chamaecyparis obtusa E. was examined by x-ray diffraction analyses. Relative crystallinity and degree of crystallite orientation showed significant differences between juvenile and adult wood. That is, Relative crystallinity increased with increasing the age from pith to about 20th annual ring, after which it reached a more or less constant value. On the other hand, degree of crystallite orientation decreased outward from pith to about 10 years and presented almost a constant value thereafter. Crystal width by Scherrer's equation did not show any significant differences between juvenile and adult wood. Therefore, it was considered that crystallinity index and degree of crystallite orientation by x-ray diffraction method could be used for evaluating wood quality.

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Fractions of Chamaecyparis obtusa Display Antiallergic Effect in RBL2H3 Cells

  • Choi, In-Gyu;Kim, Kyung-Jong;Kim, Young-Mi;Park, Mi-Jin;Lee, Yun-Sil;Jeoung, Doo-Il
    • Journal of Microbiology and Biotechnology
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    • v.16 no.11
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    • pp.1747-1752
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    • 2006
  • Allergic inflammation results from stimulation of ${\beta}$-hexosaminidase secretion, increased calcium influx, and activation of MAPK pathways. Some fractions of Chamaecyparis obtusa decreased secretion of ${\beta}$-hexosaminidase, calcium influx, ROS, and phosphorylation of ERK. These results suggest that Chamaecyparis obtusa would be valuable for development of allergy therapeutics.

Ecological Studies on the Vegetation of Chamaecyparis obtusa Community at Mt. Gyeryoung in Geoje­city (거제시 계룡산의 편백군락에 관한 생태학적 연구)

  • Huh Man Kyu;Choi Joo-Soo;Moon Sung Gi
    • Journal of Life Science
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    • v.15 no.3
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    • pp.447-452
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    • 2005
  • The characters of Chamaecyparis obtusa community extended around the Mt. Gyeryoung in Geoje-cik were investigated for several ecological parameters and the results can be summarized as fellows. Chamaecyparis obtusa is prevailing in the plantation area, whereas Pinus densiflora and Quercus mongolica are prevailing in its outskirts. Plant biomass and net production which estimated from degree of green naturality and Miami's model were much higher in the plantation than those of the natural forest. However, the mean species diversity of plantation was lower than that of natural populations. In stratification of investigated areas, overstory tree layer was dominant in the zone of plantation and dominant layers in the natural forest were understory tree layer, shrub, and herb.

Antimicrobial Effects of Chamaecyparis obtusa Essential Oil (편백정유의 항균효과)

  • 이현옥;백승화;한동민
    • Microbiology and Biotechnology Letters
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    • v.29 no.4
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    • pp.253-257
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    • 2001
  • Essential oil of Chamaecyparis obtusa showed antimicrobial on relatively broad spectrum of bacterial and fungal species. Staphylococcus epidermidis was highly sensitive to the essential oil but Streptococcus aureus and Streptococcus mutans were not. Vibro parahemolyticus, Pseudomoas aeruginosa and Pseudomoas putida showed sensitivity at the concentration higher that 400 ppm, Thegrowth of a pathogenic yeast Candida albicans was inhibited by the essential oil above 200ppm. The radialgrowth of several filamentous fungi was also inhibited The antifungal activity of the essential oil was effective on two plant pathogens Fusarium oxysporum and Altenaria mali. These results sug-gest that essential oil of Chamaecyparis obtusa has an antimicrobial activity by inhibiting bacterial and fungal species.

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The Effects of Site Environmental Factors on Estimation of Site Index Function for Chamaecyparis obtusa Endlicher Stands (입지환경인자를 바탕으로 한 편백의 지위지수 추정에 관한 연구)

  • Kim, Dae-Hyun;Kim, Eui-Gyeong;Lee, Sung-Gi;Chung, Young-Gyo;Jeong, Jin-Hyun
    • Journal of Environmental Science International
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    • v.17 no.8
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    • pp.891-898
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    • 2008
  • This study was conducted to develop the effects of site environmental factors on estimation of site index function for Chamaecyparis obtusa Endlicher stands. We derived nonlinear growth equation and the draw site index curves by applying this estimated equation. This study with Chapman-Richards function showed significant P-value which was less then 0.0001 and $R^2$ value 0.5947. This study was conducted to develop the feasible site index equation of Chamaecyparis obtusa Endlicher. For the table, the data of 82 sample areas that were thought to be without errors among the data of Chamaecyparis obtusa Endlicher sample area located on the value-oriented forest location chart were used and estimated. After analyzing the quantification method I based on 13 environmental factors to develop the score table for the site-index estimation of Chamaecyparis obtusa Endlicher, $R^2$ value of the model was 0.7555. It has been analyzed that the scope value of Soil moisture in horizon A was 7.5045, that of total soil depth was 6.3896, that of topography was 5.3471, that of slope was 4.7000 and that of aspect was 3.2038. After analyzing the partial correlation to examine the factors that affected most the site-index of Chamaecyparis obtusa Endlicher, it has been noted that the partial correlation of climatic zone was 0.4987, which was highest, and it was followed by Soil moisture in horizon A (0.4592), slope (0.4537), topography (0.3299) and total soil depth (0.1035). As a result of conducting the significance test for partial correlation, it has been found that topography, climatic zone, parent rock, slope, altitude, aspect, Soil moisture in horizon A, soil hardness in horizon A and total soil depth were recognized significant with 1% of significance level and sedimentary type and soil texture in horizon A were recognized significant with 5% of significance level.