• 혜화의학회지
• /
• 제20권2호
• /
• pp.67-78
• /
• 2012

Volatile odor substance originating from drying and making dry peel of tangerine from the fruit skin were collected through modern equipment. The anti-microbial activity of the substance against various skin-residing bacteria including acne, dandruff, athelete's foot, and gingivitis inducing microorganisms were tested. Anti-microbial activity was observed in purified oil, where 87 to 92% was D-limonene. Against P. acnes, 103$cfu/m{\ell}$ of P. acnes were suppressed at 0.1% Unshiu oil, and the MIC was measured to be 0.3%. Against P. ovale, a dandruff inducing bacteria, 104$cfu/m{\ell}$were suppressed at 0.1% Unshiu oil, and the MIC was measured to be 0.1%. Against T. rubrum and T. Mentagrophytes, both of which are athelete's foot inducing microorganisms, 83% of T. Mentagrophytes and 99.9% of T. rubrum were suppressed at 0.1% Unshiu oil, and the MIC were 0.3% and 0.05% respectively. Against S. aureus, a skin infection inducing bacteria, 103$cfu/m{\ell}$ of the bacteria were suppressed at 0.1% Unshiu Oil. Against B. subtilis, a non-pathogenic sporulating bacteria, 104$cfu/m{\ell}$ of the bacteria were suppressed at 0.1% Unshiu Oil. Against C. albicans, found in mucous membranes, 104$cfu/m{\ell}$ of the bacteria were suppressed at 0.1% Unshiu Oil. Against Aspergillus niger, an otomycosis inducing microorganism, 99.9% were suppressed at 0.1% Unshiu Oil. The results above indicate that low concentration of purified oil extracted from tangerine had strong antimicrobial activities against bacteria and fungi residing on the skin, and that it may be developed into skin disorder treating products in the future.

• 한국생명과학회:학술대회논문집
• /
• 한국생명과학회 2006년도 제47회 학술심포지움 및 추계국제학술대회
• /
• pp.94.2-94.2
• /
• 2006

• Journal of Nutrition and Health
• /
• 제43권3호
• /
• pp.233-245
• /
• 2010

The purpose of this study was to investigate the effects of dietary habits and nutrient intakes on skin condition of female university students. The subjects were 95 female university students in Daegu. This study examined anthropometric measurements, dietary intake, food intake habits and skin condition (moisture, elasticity, sebum (U-zone, T-zone), pores, evenness and melanin pigmentation. The subjects in this study had an average age of 21.4, an average height and weight of 161.2 cm and 52.9 kg, respectively, and the average body mass index (BMI) was 20.3 $kg/m^2$. The means of skin elasticity, pores, evenness, and melanin pigmentation were within the normal range of women in their 20s and the skin moisture state was slightly lower than the normal range, which showed a dry tendency. The sebum in the U-zone and the T-zone was lower than the standard values, which showed less secretion in both areas. The subjects with high nut intake showed a better skin pore state (p < 0.05). Those with a high intake of instant foods showed a sig-nificantly low skin moisture and a significantly higher sebum rate (p < 0.05). The group with high skin elasticity and the group with less melanin pigmentation showed a significantly low animal protein intake (p < 0.05). The group with high skin elasticity also showed a significantly higher vitamin A and niacin intakes as well (p < 0.05). The group with high skin evenness showed a significantly lower animal lipid intake and a significantly higher vitamin E intake (p < 0.05). In addition, those with high skin elasticity and evenness as well as low melanin pigmentation showed a tendency of high intake of antioxidant vitamins, such as vitamin A, carotene, vitamin C or vitamin E. In summary, a moderate intake of plant-based products and also the antioxidant vitamins within such products seems to have a beneficial effect on maintaining a healthy and good skin condition.

• 대한본초학회지
• /
• 제28권6호
• /
• pp.25-29
• /
• 2013

Objectives : The dried root of Sophora flavescens Aiton have been used to treat patient with skin diseases such as eczema in Eastern countries. S. flavescens can clear away heat and dry dampness and purge sthenic-fire from the liver and gallbladder. Recently, anti-allergic effect of S. flavescens has been reported. However, the effect on skin condition of contact dermatitis still remains unknown. Thus, the purpose of this study is to evaluate the efficacy of S. flavescens on contact dermatitis. Methods : In order to investigate the effects of S. flavescens (methanol extract of S. flavescens, MESR) on skin condition, the contact dermatitis was induced in mice skin by using 1-fluoro-2,4-dinitrofluorobenzene (DNFB). As the effective endpoints, skin thickness, skin weight, histopathological change were checked. In addition, effects on skin lesion, body weight and spleen/body weight ratio were also investigated. Results : Topical application of MESR ($500{\mu}g/day$) lowered skin thickness (P < 0.05) and skin weight (P < 0.05), respectively. MESR-treated group showed diminished spongiosis and immune cell infiltration in skin tissues compared to those of non-treated control group. The inhibition of skin lesions was also observed in MESR-treated group. In addition, MESR did not affect body weight gain and spleen/body weight ratio in contrast with those in dexamethasone-treated group. Conclusion : These data suggest that Sophorae Radix could improve skin lesion of contact dermatitis. This indicates the possibility for Sophorae Radix to be used to patients with skin diseases such as contact dermatitis.

• 패션비즈니스
• /
• 제16권4호
• /
• pp.100-106
• /
• 2012

This research was carried out to find the mordant effect of Chestnut's inner skin on the cow leather dyed by Turmeric powder. The best proper mordanting conditions were examined by changing mordant method, concentration, temperature, bath ratio, time, and repetition. Also dyeability and surface color changes were evaluated by various mordanting methods. The optimum mordanting conditions of chestnut's inner skin extract on the cow leather were pre mordant, 80%, $50^{\circ}C$, 50:1, 40minutes, 4 repetition. The K/S values as a mordant were higher in pre mordant than post mordanting condition. Although the ${\Delta}E$ was slightly higher in post mordant than pre mordant, it was too small to find any means. The surface colors of all dyed cow leathers were yellow. Among light, dry cleaning, and abrasion fastnesses, only light fastness was increased one degree, others were same degrees.

• Child Health Nursing Research
• /
• 제5권3호
• /
• pp.241-249
• /
• 1999

Diaper dermatitis, or commonly called 'diaper rash', is among the most prevalent cutaneous disorders of infancy and early childhood and important issue in nursing. The term itself is not diagnostic since it encompasses a variety of acute inflammatory reactions which are best regarded as a family of disorders arising from a combination of factors specifically attributable to the use of diapers Intensive study of the rash Process has shown that skin wetness and fecal enzyme activity are damaging to skin and lead to the development of diaper rash. This suggests that it is important to keep urine away from babies' skin, so that the skin remains as dry as Possible and maintains its barrier function abilities. Controlling the urine will also minimize the mixing of urine and feces within the diaper. which helps prevent the increased activity of enzymes that attack the skin and cause irritation. Therefore, a diaper that keeps the skin drier and limits the mixing of urine and feces will help Prevent the conditions that lead to diaper rash. Since their introduction about 35 years ago, disposable baby diapers have undergone many design and performance changes. In Particular. the Performance of diapers was advanced by the introduction of absorbent gel materials (AGMs) to Provide advantages in skin care. dryness, and leakage Protection Especially, important was the introduction of AGM which increased the absorbent capacity of the diaper several fold and Yielded marked reductions in the degree of skin hydration occurring under the diaper Studies show not only drier skin but more stable skin pH and less dermatitis with AGM diapers than with home-laundered cloth diapers or single-use diapers without AGM Minimizing diaper area skin wetness is important for managing and Preventing diaper rash. To minimize wetness, parents should use super absorbent diapers.

• 한국식품과학회지
• /
• 제41권5호
• /
• pp.528-535
• /
• 2009

국내산 적포도인 Campbell, MBA, Sheridan 세 품종의 포도를 각각 4가지 방식으로 나누어 처리를 하여 발효를 하였다. 첫 번째 시료는 포도를 제경하고 파쇄한 후 상법의 방법으로 발효시킨 적포도주(conventional), 두 번째는 포도껍질을 제거해서 발효시킨 포도주(skin removed), 세 번째는 상법의 적포도주 제조방식에 제거된 껍질을 추가로 첨가하여 발효시킨 포도주(skin added), 네 번째는 포도를 착즙하여 수율이 50% 되도록 착즙한 포도즙을 발효시킨 포도주(juice) 등 4가지 방식으로 포도주를 제조하였다. 발효과정 중 당도와 알코올 변화는 포도품종이나 처리방식에 따라 별 차이가 없었으나 색도에 있어서는 MBA가 가장 짙었고 Campbell, Sheridan 순으로 여려졌다. 처리 방법에 의해서는 포도의 품종에 관계없이 껍질을 제거하여 만든 포도주(skin removed)의 백색도(L값)가 가장 높았고 착즙액으로 제조한 포도주(juice), 상법에 의해 제조한 포도주(conventional), 껍질을 첨가하여 만든 포도주(skin added) 순으로 낮아졌고 폴리페놀 함량은 껍질을 제거해서 만든 포도주(skin removed)가 가장 낮았고 껍질을 첨가하여 만든 포도주(skin added)는 상법에 의해 제조한 포도주(conventional)에 비하여 30%이상 높게 나타났다. 관능검사 결과 dry-type(Campbell, MBA)에서는 껍질을 첨가해서 만든 포도주의 기호도가 상법에 의해 제조한 포도주에 비하여 높게 나타났으며 sweet-type(Sheridan)에서는 껍질을 제거해서 만든 포도주의 기호도가 크게 향상되었다.

• 대한예방한의학회지
• /
• 제13권2호
• /
• pp.19-26
• /
• 2009

Objectives : This study was investigated to the relationship ayurvedic constitution and each skin hydration and pH. Methods : The questionaire survey and skin analysis of female students attending university located in Chugnam was carried out in order to assess skin types according to ayurvedic constituion such as vata, pitta and kapha. Data analysis were used describe statistics, ANOVA in Duncan's multiple comparative test and Pearson's correlation by SPSS. Skin hydration and pH was measured by Corneometer and skin-pH meter. Results : The results of this study are as follows. First, in terms of knowledge of ayurvedic constitutional types most students are not aware of that. Second, the most common constitution in the ayurveda medical system was pitta. Third, in the analysis of skin type by constitution of ayurveda, vata had dry skin while pitta and kapha tended to have more combination skin. However, this result didn't show any statistically significant difference either. Forth, the analysis of skin tone by constitution of ayurveda showed that vata was white, and pitta and kapha were just average. Discussion and Conclusion : The results of this study was shown that the difference between Korean and Indian, so we should develop effective diagnosis tool for Korean people. In the future, we expect that ayurvedic skin and body program developed by this study spread and practical use at esthetic industry and domain of esthetics in Korea.

• 대한화장품학회지
• /
• 제27권1호
• /
• pp.83-98
• /
• 2001

Inositol, is a water-soluble crystalline compound. It helps with people’s metabolism and decreases cholesterol levels. It is also known to have anti-cancer results. In order to find out the affects of Inositol on the skin, Inositol skin lotion was produced with each amount of Inisitol: 0, 0.5, 1.0, 2.0, 3.0 wt% and tested on the faces and the arm areas of women in all ages for 7 weeks. The moisture, sebum, change in elasticity, and improvement of wrinkles were measured. Corneometer, Sebumeter, Cutometer, and an image analyzer were used as measuring equipments. There are subtle differences in the subjects when 1-2% of Inositol is used the moisture of the skin improved 19%, elasticity by 17%, and the amount of sebum for dry and oily skin types adjusted to the amount of sebum of the neutral skin types. This influenced the length, width, the number of peak, and the height of the wrinkles to improve 12.4%. It is thought that Inositol would be an effective new raw material in cosmetics.

• 대한화장품학회지
• /
• 제48권4호
• /
• pp.343-355
• /
• 2022

맞춤형화장품은 사회환경 변화와 개성을 중시하는 트렌드에 따른 화장품으로서 지속해서 언급되고 있다. 이에 본 연구에서는 나노에멀젼 제형과 앰플 제형의 비율을 달리함으로써 피부타입에 대응한 나노에멀젼 앰플 4 종을 제조하여, 맞춤형화장품 베이스로서의 적용 가능성을 확인하고자 하였다. 휘발잔분량을 달리한 나노에멀젼 앰플 4 종에 대해, 90 일 동안의 시간에 따른 입자크기, 다분산지수, 제타전위 및 점도를 측정하였으며, 콜로이드 분산계의 안정성 평가방법으로 터비스캔을 측정하였으며, 마지막으로 인체 사용성 만족도를 평가하였다. 결과, 나노에멀젼 앰플 4 종은 지성용 시험품보다 건성용 시험품에서 휘발잔분량이 많음을 확인하였다. pH는 6.41 ~ 6.88 범위이며, 입자크기는 170 ~ 174 nm 범위로 90 일 경과 후 변화는 최대 1.2% 이내로서 입자크기 안정성에는 특이점이 없었다. 다분산지수는 모든 시험품에서 0.21 보다 작은 수치 내에서의 변화를 나타냄으로써 거의 일정하며, 단분산에 가까운 입도 분포를 보이는 것으로 확인하였다. 제타전위는 초기에 4종의 시험품 모두 -63 mV 이상이며, 시간에 따라 약간 감소 경향을 보이나 최대 2.5% 감소하는 정도로 변화가 거의 없었다. 점도는 초기에 4,100 ~ 5,100 cps 범위로 시간에 따라 감소 경향을 보여 최대 37.7% 감소하였다. 터비스캔 측정에서는 안정성의 척도인 turbiscan stability index가 모두 1.0 이하로 분산 안정성을 보였다. 피부타입에 대응한 나노에멀젼 앰플 4 종의 사용성 만족도 평가(6 점법)에서는 지성용 시험품(5.42 ± 0.67 점) > 중지성용 시험품(5.36 ± 0.67 점) > 중건성용 시험품(5.15 ± 0.69 점) > 건성용 시험품(4.75 ± 0.75 점)의 순으로 평가되었다. 나노에멀젼 앰플 4 종은 물성적으로 안정하며, 피부타입에 따른 맞춤형화장품 베이스로서 적용 가능성을 확인하였으며, 다양한 방법으로 확장 가능성도 기대된다.