• Title/Summary/Keyword: 보습

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여름철 그을린 피부손질

  • Kim, Gi-Yeon
    • 건강소식
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    • v.9 no.8 s.81
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    • pp.46-49
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    • 1985
  • 불타는 태양은 우리와 함께하고 여름의 낭만이 우리를 손짓하지만 여름의 낭만이 우리를 손짓하지만 여름을 맞이한 피부는 높은 기온과 강한 자외선으로 피지 분비가 많아지고 피부내 자연보습성분인 NMF와 수분이 감소되어, 피부는 거칠어 집니다.

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Transepidermal Water Loss, Stratum Corneum Hydration and Transmission Electron Microscope Observation on Acetone Damaged Canine Skin Barrier Model (아세톤에 의해 손상된 개 피부장벽 모델에서의 경표피수분소실도 및 각질층보습도 평가와 전자현미경적 관찰)

  • Oh, Won-Seok;Park, Seong-Jun;Oh, Tae-Ho
    • Journal of Veterinary Clinics
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    • v.27 no.2
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    • pp.142-146
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    • 2010
  • The purpose of this study is to establish experimental canine skin barrier disruption model in dog. The study was designed to investigate the predictive properties of acetone damage using as effect parameters transepidermal water loss (TEWL) and stratum corneum (SC) hydration. To compare the structures of SC intercellular lipids in normal and acetone damaged skin, TEM observations were performed. Six clinically normal, male Beagles without dermatological problems were chosen for this study. Acetone damage was performed at 48hrs after clipping. Efficacy measurements for TEWL and skin hydration were performed before ($t_1$) and after ($t_2$) damage in a temperature- and humidity-controlled room ($2{0\sim}22^{\circ}C$, 50-60%). TEWL and SC hydration values were decreased in the acetone damaged model compared with non damaged skin. In TEM observation of acetone damaged sample, the intercellular lipid lamellae exhibit abnormal and incomplete structure compared with those of normal skin. It seems that acetone damage would be one of canine skin epidermal barrier disruption model for the study of canine atopic dermatitis (AD) as well as dry skin in veterinary dermatology research.

The Effect of Various Humectants on Equilibrium Moisture Content and Storage Stability of Seasoned Squid (여러가지 보습제가 조미오징어 평형수분함량에 미치는 영향)

  • Rhee, Chul;Kang, Chang-Soo
    • Korean Journal of Food Science and Technology
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    • v.20 no.5
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    • pp.704-710
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    • 1988
  • This study was, firstly, to investigate water holding capacity in terms of variation of moisture sorption isotherms of seasoned squid treated with sodium lactate, glycerol, propylene glycol, sorbitol, mannitol, sodium benzoate, potassium sorbate and calcium propionate, and secondly, the effect of humectant treatments on storage stability was studied. The criteria for storage stability was based on three quality factors, namely, lipid oxiations, color development by non-enzymatic browning reactions and lipid oxidation, and mold growth. The effect of humectants on equilibrium moisture content was in the following increasing order; mannitol < sorbitol < sodium lactate < propylene glycol < glycerol. The experimental data indicated that sodium lactate has, in practice, potentially positive effect on processing of seasoned squid. During the storage period of 60 days, TBA values increased in all samples tested as humectants concentrations increased up to 10%. However, in the range of 1-7% sodium lactate treatment, the degree of lipid oxidation, browning reactions and mild growth were not high enough to affect the quality of seasoned squid, when compared with conventionally manufactured ones.

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Antimicrobial Activities of Sophorolipids and Its Application for Cosmetics (Sophorolipid의 항균효과와 화장품에의 응용)

  • Cho, Wan-Goo;Park, Hyo-Soon;Ahn, Byoung-Joon
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.34 no.4
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    • pp.317-323
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    • 2008
  • Some surfactants known as biosurfactants, are produced biologically by yeast and bacteria from various substances. They are more effective and environmentally friendly than many other synthetic surfactants. Antimicrobial activities of sophorolipids produced by Candida bombiocola were investigated against various microorganisms. Minimal Inhibitory concentration (MIC) of sophorolipid against S. mutans, C. xerosis, and P. acnes were 0.005, 0.05, and 0.005%, respectively. The antimicrobiological activities were more effective than those of SLS and APG. Skin exfoliating and moisturizing effects of vehicles with the sophorolipids were tested. The skin turnover time of aqueous solution with 0.25% sophorolipids was similar to that of aqueous solution with 5.0% lactic acid. Higher moisturizing effects on skin showed as the concentration of sophorolipids increased. We suggest that the sophorolipids can be used for cosmetics as an antimicrobiological agent and an active materials of skin moisturizing and exfoliating.

Anti-aging & Skin Hydration Effects of Spore oil Extracted from Ganoderma lucidum (영지버섯에서 추출한 포자오일의 항노화 및 보습 효능)

  • Song, Hwan;Kim, Myun Soo
    • Journal of Convergence for Information Technology
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    • v.10 no.5
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    • pp.232-238
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    • 2020
  • This study evaluated the anti-aging activity with antioxidant, anti-inflammatory and moisture activity of Ganoderma lucidum spore oil(GLS). GLS increased DPPH radical scavenging activity in a dose-dependent manners. Anti-inflammatory assay measured the inhibitory effect of GLS on NO, TNF-α and IL-6 production in LPS-stimulated RAW264.7 cells. As a result GLS inhibited NO and pro-inflammatory cytokine, TNF-α, IL-6 production. Also using human fibroblast cell to the procollagen production analysis and COL1A1 mRNA expression level analysis for defining, and for AQP-3 mRNA expression level analysis, used human keratinocyte cell. GLS increased procollagen production and COL1A1, AQP-3 mRNA expression. Our results suggest that the GLS have potential anti-inflammatory and wrinkle improves, skin moisture effect.

Anti-aging Effect of Amino Acid Complex on the Skin (Amino Acid Complex의 항노화 작용)

  • Kim, Ki-Ho;Kim, Ki-Soo;Kim, Young-Heui;Ko, Kang-Il;Park, Sun-Hee;Kim, Jin-Guk;Chio, Hyun-Jin;Ko, Su-Yeon;Bae, Yoon-Joo;Kim, Yong-Min
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.32 no.2 s.57
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    • pp.81-88
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    • 2006
  • Amino acid complex was made with the composition of amino acids quite similar to that of stratum corneum on the skin. In order to evaluate the efficacy of amino acid complex on the skin as an active cosmetic ingredient, we measured cytotoxicity. TIMP-1 expression, moisturizing effect and the amount of horny substance. In cytotoxicity assay, amino acid complex did not show any cytotoxicity. In moisturizing effect test using corneometer, it showed very good moisturizing effect. In TIMP-1 mRNA assay using RT-PCR, moo acid complex showed the increase of TIMP-1 expression, suggesting that amino acid complex have anti-wrinkle effect. Therefore, amino acid complex may be useful as an active ingredient for anti-aging.

Psychophysiological evaluation for naturally flavored cream products (천연향을 이용한 크림 제품의 심리생리적 평가)

  • Park, Se-Jin;Oh, Seung-Bin;Lee, Eun-Ju;Seo, Hyung-Jye
    • Science of Emotion and Sensibility
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    • v.15 no.1
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    • pp.9-16
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    • 2012
  • Generally, cosmetic creams have been used to moisturize and smooth human skin. Recently, people concerns about the creams released with natural flavors and its functionality. This study focused to assess the psychophysiological effects of creams with 5 natural flavors such as patchouli oil, frankincense, sandalwood oil, none and newly developed S6. Initially, we have performed subjective evaluation for 100 female subjects aged 20 to 30 from Daejeon, South Korea. The results showed the most preferred flavor was S6 condition. Second, physiological evaluations for 20 female subjects were measured with EEG, ECG and GSR. In EEG analysis, the alpha ratio was confirmed to appear higher in each condition. The statistical analysis shows that significantly largest effect at S6 condition($p$ <0.05). The result from ECG and GSR measurements also shows the same trend. Third, skin conditions were measured when using S6. As a result, the skin temperature, humidity and skin movement speed were increased with S6 condition. The moisturizing and elasticity effects were confirmed.

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The Dietary Effect of Royal Jelly Supplementation on Epidermal Levels of Filaggrin and Free Amino Acids during Menopause in Rats (폐경기 노화 유도 전후의 로얄제리 식이공급이 백서 표피의 필라그린과 유리아미노산 함량 및 관련 대사 효소의 단백질 발현 변화에 미치는 영향)

  • Kim, Yeaji;Han, Sang-Mi;Cho, Yunhi
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.42 no.3
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    • pp.389-396
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    • 2013
  • Epidermal hydration is mainly maintained by natural moisturizing factors (NMFs). Of these various NMFs, free amino acids (AAs) are major constituents generated by filaggrin degradation. The reduction of these AAs has been reported in aging skin induced during menopause. In this study, we examined whether the dietary supplementation of royal jelly (RJ) during the pre- and post-menopausal period alters epidermal levels of filaggrins, free AAs, and peptidylarginine deiminase-3 (PAD-3) (an enzyme involved in filaggrin degradation processes). Sprague Dawley rats were divided into five groups: groups fed a control diet for 12 weeks, in which an ovariectomy (OVX) or sham operation (SHAM) were underwent at week 4; groups fed a diet with 1% RJ harvested in different area of Korea (RJ1 and RJ2); and a group fed a diet with isoflavone (IF), the typical functional food for menopause prevention, for 4 weeks before and 8 weeks after an ovariectomy operation. In the epidermis of group OVX, total filaggrins (including profilaggrin and filaggrin) were reduced; these levels in groups RJ1 and IF were similar or less than in group OVX. However, total AAs, which showed no apparent difference between groups SHAM and OVX, were highly increased in groups RJ1 and IF. Specifically, aspartate (Asp) and proline (Pro), the major AAs in functioning NMF, were highly increased in group RJ1. Although total filaggrins, profilaggrin, filaggrin and PAD3 increased, total AAs (including Asp and Pro) in group RJ2 were modest or less than in group RJ1. The PAD3 alteration was not apparent among the four other groups. Taken together, we demonstrate that the diet supplementation of RJ1 enhanced filaggrin degradation (but not through the increased protein expression of PAD3), and increased total AAs, Asp and Pro. RJ1 could be a dietary supplementation for preventing the skin aging induced during menopause.

Effects of Various Humectants on Quality Properties of Pork Jerky (보습제 종류와 첨가수준이 돈육 육포의 품질특성에 미치는 영향)

  • Han, Doo-Jeong;Jeong, Jong-Youn;Choi, Ji-Hun;Choi, Yun-Sang;Kim, Hack-Youn;Lee, Mi-Ai;Lee, Eui-Soo;Paik, Hyun-Dong;Kim, Cheon-Je
    • Food Science of Animal Resources
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    • v.28 no.4
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    • pp.486-492
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    • 2008
  • We investigated the quality properties of pork jerky prepared with various humectants (Konjac, egg albumin, isolated soy protein). Jerky was prepared as follows; control with no humectants, treatments with 0.05, 0.1, and 0.2% humectants, respectively. Humectant treatments had higher drying yields of pork jerky than the control (p<0.05), Konjac treatment produced the the highest drying yields among the humectants tested. CIE a-and b-value were lowest in isolated soy protein treatments. b-value in 0.2% egg albumin treatments were higher than other treatments (p<0.05). Jerky water content increased as humectant content increased. Water activity (Aw) in 0.2% Konjac treatments was higher than controls and 0.05% Konjac (p<0.05). In textual profile evaluations, control samples had greater hardness, cohesiveness, gumminess, and chewiness values than other treatments, but very low springiness (p<0.05). Control had significantly (p<0.05) lower scores than the other treatments in sensorial texture, juiciness and overall acceptability. Based on our findings, we conclude that 0.05% Konjac was the most effective humectant among those we tested in this study.

Biological Activity of Mixed Extracts of Acanthopanax senticosus and Citrus unshiu Fermented with Bovista plumbea for Inner Beauty (이너뷰티 소재로서의 생물전환된 가시오가피-진피 혼합 추출물의 생물학적 활성)

  • Eun Jeong Kim;So Yeon Kim;Su Yeon Kang;Yung Choon Yoo;Taek Joon Yoon;Gye Won Lee;Young Ho Cho
    • Journal of Life Science
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    • v.33 no.7
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    • pp.555-564
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    • 2023
  • In this study, the anti-oxidant activity, elastase inhibitory activity, and skin moisturizing effect of mixed extracts of Acanthopanax senticosus and Citrus unshiu fermented with Bovista plumbea (B-MEAC) were evaluated to verify the availability as a material for inner beauty. The DPPH radical scavenging activity of B-MEAC was showed in a dose-dependent manner (SC50=156.1±0.82 ㎍/ml). Also, B-MEAC inhibited the elastase activity in a concentration-dependent manner (p<0.001). To study the effect of B-MEAC on mouse skin hydration, skin moisture content and transepidermal water loss (TEWL) measured. As a result, skin moisture content increased (p<0.001) and TEWL decreased (p<0.01) compared to the dry-induced control group. The effect on the change of collagen fibers in the dry-induced mouse skin was examined through Masson's trichrome staining. In the group administered with B-MEAC, the amount of collagen relatively increased compared to the control group, and the intensity of blue color increased. The effect on the moisturizing function of the dry-induced mouse skin was examined by Western blot method. In the group administered with B-MEAC, the expression of matrix metalloproteinase-1 (MMP-1) protein decreased compared to the control group. In addition, the expression level of collagen1A1 (COL1A1), hyaluronan synthase-2 (HAS2), filaggrin, and aquaporin-3 (AQP3) recovered (p<0.001). Therefore, these results suggest the potential of B-MEAC as a skin hydration agent for inner beauty.