• 한국의류산업학회지
• /
• 제19권4호
• /
• pp.486-492
• /
• 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.

• 통합자연과학논문집
• /
• 제12권3호
• /
• pp.74-77
• /
• 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.

• 패션비즈니스
• /
• 제18권3호
• /
• pp.29-44
• /
• 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.

• 한국의류학회지
• /
• 제43권2호
• /
• pp.288-296
• /
• 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.

• 한국응용과학기술학회지
• /
• 제37권6호
• /
• pp.1496-1506
• /
• 2020

본 연구는 화장품 소재로서 편백나무(Chamaecyparis obtusa)의 부위별 이용 가능성을 알아보기 위하여 잎·가지(Leaf), 수피(Bark), 목재(Wood), 뿌리(Root)로 분리하여 99.9 % 에탄올에 추출한 시료로 항산화, 미백효능을 확인하였다. 이를 위해 다음과 같은 연구를 진행하였다. 항산화 평가는 11-diphenyl-2-picrylhydrazyl (DPPH) 라디칼 소거능, 2 2′-azino-bis (3-ethylbenzothiazoline-sulfonic acid) diammonium salt (ABTS+) 라디칼 소거능으로 확인하였다. 미백 효과를 평가하기 위해서 mushroom tyrosinase 저해 활성 평가, MTT assay를 통한 편백나무 추출물의 세포독성평가를 진행하였으며 cellular tyrosinase 저해율 측정과 melanin 생합성량을 확인하였다. 항산화 활성 결과 편백나무 부위 중 수피(Bark) 추출물이 가장 효능이 우수하였으며 B16F10 melanoma cell내 편백나무 수피(Bark)는 tyrosinase 활성 억제 및 멜라닌 생합성 억제 효과를 나타내었다. 따라서 편백나무 수피 에탄올 추출물의 안전하고 우수한 미백 기능성 화장품의 천연물질 소재로서의 개발 가능성을 확인하였다.

• Journal of Microbiology and Biotechnology
• /
• 제16권11호
• /
• pp.1747-1752
• /
• 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.

• Journal of the Korean Wood Science and Technology
• /
• 제26권4호
• /
• pp.20-25
• /
• 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.

• The Korean Journal of Ecology
• /
• 제17권1호
• /
• pp.11-22
• /
• 1994

전북 완주군 상관면 죽림리에 위치한 편백 식재림의 하중식생은 식재림 외부보다 출현종수 및 개체수가 매우 적으며, 인공림내에서도 순편백림이 편백-일본잎갈나무림보다 더 적다. 빈도 10% 이상인 종은 109종류 중에서 27종 뿐이었고, 청가시덩굴과 청미래덩굴의 빈도가 가장 높았다. 식재림내의 지표면 조도와 토양을 분석한 결과, 광량의 부족과 토양의 낮은 pH, 그리고 토양 무기물의 차이가 빈약한 하충식생의 원인으로 추정되었다. 그리고 종에 따라 다르나 토양을 이용한 실험실에서의 생물정량으로 임외종의 발아와 신장 생장이 더 억제되는 경향을 보였고, 편백 litter 추출액과 leachate에 의한 생물정량에서도 임외종의 발아와 신장생장이 억제되는 경향을 보였다. 따라서 litter와 leachate를 통한 편백의 allelopathy 효과가 적어도 부분적으로나마 본 식재림의 빈약한 하중식생의 한 원인이 될 수 있을 것으로 사료된다.

• Journal of Applied Biological Chemistry
• /
• 제48권1호
• /
• pp.26-28
• /
• 2005

Evaluation of larvicidal activities of Chamaecyparis obtusa and Thuja orientalis oils against 4th-instar larvae of Aedes aegypti and Culex pipiens pallens revealed larvicidal activities of leaf oils extracted from C. obtusa and T. orientalis were significantly higher than those of stem, fruit, and seed oils. Strong mortality was observed in age class II of C. obtusa and T. orientalis against Ae. aegypti and Cx. pipiens pallens larvae. These results show both leaf part and age class II of C. obtusa and T. orientalis have strong larvicidal activity against Ae. aegypti and Cx. pipiens pallens. Leaf oils of C. obtusa and T. orientalis leaves show promise as natural larvicides against Ae. aegypti and Cx. pipiens pallens.

• 한방안이비인후피부과학회지
• /
• 제29권1호
• /
• pp.33-46
• /
• 2016

Objective : The aim of this study is to investigate the effect of Chamaecyparis Obtusa Oil to NC/Nga mice induced in Atopic dermatitis-like skin lesions by DNCB Mthods.Methods : NC/Nga mice which have been induced to Atopic dermatitis-like skin lesions by DNCB are divided into 3 groups, the one is the mice which have been spread with Chamaecyparis Obtusa Oil 2% cream, the other is which have been spread with dexamethasone (Dexa.) 0.5% on their Atopic lesion, another is the control group. then we take the blood sample of each group to measure state of the dorsal skin, the number of immunocytes. and resect the skin lesion to analyze the state of cells.Result & Conclusion : There are meaningful results of measuring the number of IgE, IL-4, IFN-γ and the state of the skin lesion and cells in the group with hamaecyparis Obtusa Oil 2% cream in comparison with the other groups.