A Consideration of the Possibility of Planting Cryptomeria japonica and Chamaecyparis obtusa on the East Sea Area in Gangwon-Province by Tree Ring Dating and Climatic Factor Analysis

Son, Ho-Jun; Kim, Young-Sol; Kim, Nam‐Young; Lee, Hak-Bong; Park, Wan-Geun

doi:10.7747/jfs.2014.30.1.36

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…The content of essential oils at Gokseong was significantly higher than others. The environmental factors (humidity, temperature, moisture content, and soil composition) might be effect on production of essential oils (Lamarche et al 1984;Seong et al 2014;Son et al 2014). There were significant variations on specific months based on humidity, temperature, and the moisture content at Gokseong.…”

Section: Discussionmentioning

confidence: 99%

Essential Oil Yields and Chemical Compositions of Chamaecyparis obtuse Obtained from Various Populations and Environmental Factors

Kang¹,

Min²,

Choi³

2014

Journal of Forest and Environmental Science

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Essential oil yields and chemical compositions from 5 populations of Chamaecyparis obtusa with several environmental factors were investigated through essential oil extracted distillation apparatus and metabolite profiling by GC-MS analysis. Among the populations, content of essential oil at Gokseong was significantly higher than other populations. To compare the several environmental factors affecting on chemical composition and essential oil yields from C. obtuse at Gokseong, the environmental factors (soil condition, temperature, humidity, and moisture content) were measured during 1 year. The essential oils at Goksung based on humidity on March, July, and November was significantly different from other months. The essential oils at Goksung based on temperature on July and August was significantly different from other months. The essential oils at Goksung based on the moisture content on September were significantly different from other months. The percentage of T-N, OM, and yield of oil at Gokseong were significantly different on from other populations. The main constituents of C. obtusa at all populations were α-pinene, β-pinene, α-terpinene, γ-terpinene, terpinene-4-ol, isobonyl acetate, terpinyl acetate, and cedar acetate. Specially, Essential oil compositions (%) of α-terpinene and cedar acetate were higher at Gokseong than at other populations. The chemical compositions of essential oils were variable depend on populations and environmental conditions. Therefore, this study might be used as fundamental research on study for selection of high productive terpenoids and for understanding about biosynthesis of essential oils in C. obtusa.

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Section: Discussionmentioning

confidence: 99%

Essential Oil Yields and Chemical Compositions of Chamaecyparis obtuse Obtained from Various Populations and Environmental Factors

Kang¹,

Min²,

Choi³

2014

Journal of Forest and Environmental Science

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“…It originates in Japan and was introduced to Korea in the 1900s. It is distributed in the southern regions of the Korean peninsula, such as in Jeonbuk, Jeonnam, Gyeongnam and Jeju [ 14 ]. It is expected that the value of using C. obtusa for forest healing and health promotion will increase [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Dyeing Performance and Anti-Superbacterial Activity of Cotton Fabrics Dyed with Chamaecyparis obtusa

Choi,

Park

2023

Molecules

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In hospitals, doctors’ and patients’ uniforms, as well as bedding and textiles, can be carriers of superbacteria. This study was conducted to test the anti-superbacterial activity of cotton fabrics dyed with extracts of Chamaecyparis obtusa (C. obtusa). The dye was extracted by boiling C. obtusa in water. The test cotton was mordant-dyed three times with the solution at a 1:17 dyeing bath ratio and at an 8.69% (o.w.f) dye concentration for 15 min at 40 °C. C. obtusa dyeing demonstrated a high dyeing affinity in the absence of mordant (K/S value = 14.62). The K/S value of the dyed fabric increased in the order of Cu-mordanted, Fe-mordanted, non-mordanted, and Al-mordanted cotton. Dry cleaning, perspiration and rubbing fastness were determined to be good (Grade 4–5). The dyed fabrics appeared to have a high deodorizing ability compared to the control fabric. They showed not only antibacterial activity against Staphylococcus aureus (S. aureus) and Klebsiella pneumoniae (K. pneumoniae), known to be frequently found in fabrics, but also higher antibacterial activity against the superbacteria methicillin-resistant Staphylococcus aureus (MRSA) (reduced by 99.7%). These results suggest that fabric dyed with C. obtusa extract may be used in clothes and bed linens for inpatients, given its high anti-superbacterial activity. Furthermore, such fabrics may contribute to inhibiting pathogenic infections when used in hospital uniforms or operation gowns for doctors or nurses in hospitals.

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Antibacterial Function of Fabrics Dyed with Extract from Chamaecyparis obtusa Leaves against Methicillin-resistant Staphylococcus aureus

Choi¹,

Kim²

2017

SFTI

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: Bacteria exist everywhere and continuously come into contact with daily surroundings and humans. Super bacterium methicillin-resistant Staphylococcus aureus, resistant to methicillin, has recently appeared. The morbidity and rate of death associated with super bacteria infection has increased. This study investigated the antibacterial activity of fabrics naturally dyed with Chamaecyparis obtusa leaves extract against methicillin-resistant Staphylococcus aureus. Fabrics were left for 15 min in a natural dyeing solution prepared by extraction from C. obtusa leaves using 11.3% (o.w.f) with a fixed liquor ratio of 1:22 at 40 o C. The dyeing process was conducted using three different mordants; subsequently, the K/S value of the dyed fabrics increased in the order of None < Cu < Fe < Al. The color fastness property of the fabrics to washing, dry-cleaning, and rubbing was found to be excellent and ranked in the 4-5 grade. The color fastness to light of natural dyeing is low in most cases and has the problem that the dye color soon becomes bleached. Yet, in most cases cloth dyed with retinispora leaves, the color fastnezz to light was good with a third to fourth grade. Non-mordant fabrics, aluminum mordants, and copper mordants also showed better antibacterial properties (99.9% reduction) against methicillin-resistant Staphylococcus aureus, compared to the control fabrics. The dyed fabrics showed the same antibacterial activity even after three washes. The results highlight the strong potential of fabrics naturally dyed with C. obtusa-extract as a medicinal material with excellent antibacterial function against methicillin-resistant Staphylococcus aureus.

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A Consideration of the Possibility of Planting Cryptomeria japonica and Chamaecyparis obtusa on the East Sea Area in Gangwon-Province by Tree Ring Dating and Climatic Factor Analysis

Cited by 3 publications

References 8 publications

Essential Oil Yields and Chemical Compositions of Chamaecyparis obtuse Obtained from Various Populations and Environmental Factors

Essential Oil Yields and Chemical Compositions of Chamaecyparis obtuse Obtained from Various Populations and Environmental Factors

Dyeing Performance and Anti-Superbacterial Activity of Cotton Fabrics Dyed with Chamaecyparis obtusa

Antibacterial Function of Fabrics Dyed with Extract from Chamaecyparis obtusa Leaves against Methicillin-resistant Staphylococcus aureus

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