• 한국염색가공학회지
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• 제27권3호
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• pp.202-209
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• 2015

Many of the natural dyes used for natural dyeing are difficult to maintain colorfastness due to their complex structure and specific properties. Therefore, there is a need for developing of color sustainable ability for use as an advanced coloring agent for fabrics, which would eco benign or not. In this study, the natural dye extracted from the waste of grape fruits was used to dye cotton fabric. Thus, the present study aims at extraction of color from grape seeds, skin, and stem through fermentation and then employing the same in dyeing and mordanting of cotton. Dyeing experiments were done under different conditions of fermentation and protein type mordants which were treated before and after dyeing. Experimental fabrics were used with cotton after scouring. Color value of dyed fabrics and color fastness of cotton dyed fabrics to washing and light were measured. The fastness of dyed experimental fabrics was increased by mordanting of protein fermentation and the color of dyed cotton was light red purple. The color of dyed fabric found with the optimum mordant treatment when treated with pre milk-mordant at $40^{\circ}C$ for 30min and 3% grape seed extract. On the whole, reddish tone very slightly increased with the milk pre-mordant. The color fastness of dyed cotton fabrics to light and washing was increased after fermentation.

• 한국육종학회지
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• 제42권3호
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• pp.207-211
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• 2010

'Taedong Valley' is a high yielding and processing potato cultivar, which is a clonal selection resulting from a cross between 'W870' and 'A88431-1'. It is a medium maturating cultivar with medium plant height and light green foliage. 'Taedong Valley' has profuse flowering habit and light purple flowers. Tubers are smooth, round, and with yellow skin, light yellow flesh, medium eye depth. Tubers have medium dormancy and good keeping quality. 'Taedong Valley' has stable yield under wide range of climatic conditions. It is resistant to common scab and potato virus Y, but moderately susceptible to late blight. It is also resistant to most of the disorders, particularly dehiscence, hollow heart and internal brown spots. This cultivar has high level of tuber uniformity and capable of yielding 43.6 t/ha which is about 9.0% higher than the control potato cultivar 'Atlantic' under optimum agronomical practices.

• 대한예방한의학회지
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• 제22권3호
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• pp.83-89
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• 2018

Objectives : The aim of this study was to investigate expert opinions on the questions contained in a questionnaire for diagnosing blood stasis accompanying metabolic disorders. Methods : Two rounds of Delphi survey were conducted online targeting on one hundred Korean medicine doctors. Respondents rated the appropriateness of the 30 questions in diagnosing metabolic disorder on a five-point scale, anchored at '5 = very appropriate', '4 = appropriate', '3 = somewhat appropriate', '2 = inappropriate', and '1 = very inappropriate'. Results : The mean score on 30 questions of first and second Delphi survey was 3.26 points and 3.31 points, respectively. The ranking of the top 10 questions that were rated as appropriate for diagnosing blood stasis accompanying metabolic disorder were 'sublingual varices', 'reddish black tongue', 'reddish black gum', 'reddish black lips', ''dark purple palatal mucosa and venous edema', 'night pain, 'ecchymosis of the tongue', 'piercing pain', 'ecchymosis of the skin' and 'prolonged numbness'. Conclusions : The experts agreed that three of the most typical symptoms of blood stasis and the conditions of capillary vessels in the tongue or the oral cavity were highly associated with metabolic disorder, whereas the questions related to abdominal pain lacked an association with metabolic disorders.

• 대한화장품학회지
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• 제49권4호
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• pp.313-321
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• 2023

도라지는 초롱꽃과(Campanulaceae)에 속하는 여러해살이풀로 뛰어난 많은 약리 효능을 가지고 있어 예로부터 약재로 활용하였다. 또한 anthocyanin은 식물의 꽃이나 과실 등에 포함되는 보라색 또는 파란색을 띄는 천연색소로 강력한 항산화제로 알려져 있다. 본 연구는, 도라지꽃 추출물의 피부과학적 기능성과 꽃에 포함된 청자색 계열의 anthocyanin이 천연 색소로서 화장품 소재로의 활용 가치를 확인하고자 하였다. 우선, 도라지꽃에 50% 에탄올과 80% 에탄올을 가하여 25, 60과 80 ℃,에서 4 h 환류추출하였고 각 처리군의 pH는 유사하였다. Anthocyanin 함량과 색도(E^*ab)를 바탕으로 도라지의 천연색과 가장 유사한 발색을 나타내는 50% 에탄올 60 ℃ 추출조건을 선정하였고, 농축, 동결건조하여 시료를 제조하였다. 도라지꽃 추출물의 기능성 성분인 총 폴리페놀, 총 플라보노이드와 총 anthocyanin 함량은 23 ㎍/mL, 16 ㎍/mL과 0.17 ㎍/mL였다. 도라지꽃 추출물은 lipopolysaccharide (LPS)로 자극한 RAW 264.7 세포의 NO, IL-6 등의 염증 매개물질의 생성을 억제하는 항염증 효능 뿐만 아니라 TNF-a에 의한 각질형성 세포의 손상 조건에서 상처 치유에 의한 피부 재생 효능을 보였다. 이렇듯 항염증과 재생에 효능을 보이는 천연색소인 도라지꽃 추출물의 주를 이루고 있는 색소는 anthocyanin계이다. 일반적으로 anthocyanin계 색소는 pH, 온도 등에 불안정하다고 알려져 색소안정화제 3 종 (EDTA, maltodextrin, citric acid)을 첨가하였을 때 anthocyanin 함량과 색도를 조사하였다. 5% maltodextrin 첨가된 도라지꽃 추출물에서 50 일까지 색도 값의 안정성을 확인하였고 이를 바탕으로 천연색소인 도라지꽃 추출물의 화장품 원료로서의 응용 가능성을 평가하고자 하였다.

• 대한화장품학회지
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• 제40권4호
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• pp.423-430
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• 2014

본 연구에서는 국내산 자색고구마(Ipomoea batatas L. Lam.) 추출물을 제조하고 이들 추출물에 대하여 항산화 활성을 측정하였다. 자색고구마 추출물은 70% 에탄올 추출물과 그 추출물로부터 에틸아세테이트 분획으로 제조하였다. 추출물 및 분획의 수율은 건조 분말 당 각각 39.2% 및 3.49%이었다. 이들 추출물/분획에 대한 항산화 활성을 확인하기 위해 자유 라디칼(1,1-phenyl-2-picrylhydrazyl, DPPH) 소거활성과 루미놀 발광법을 이용한 총항산화능 그리고 세포손상에 대한 보호효과를 측정하였다. 자유 라디칼 소거활성($FSC_{50}$)은 70%에탄올 추출물과 에틸아세테이트 분획이 각각 $90.16{\mu}g/mL$와 $7.69{\mu}g/mL$를 나타내었다. 비교 대조군으로 사용한 (+)-${\alpha}$-tocopherol의 라디칼 소거활성은 $8.98{\mu}g/mL$로, 에틸아세테이트 분획의 라디칼 소거활성이 보다 큼을 알 수 있었다. 루미놀 발광법을 이용한 70% 에탄올 추출물과 에틸아세테이트 분획의 총 항산화능($OSC_{50}$)은 각각 $5.75{\mu}g/mL$와 $1.92{\mu}g/mL$이었다. 비교 대조군으로 사용한 항산화 효능이 매우 우수한 L-ascorbic acid의 항산화능은 $1.50{\mu}g/mL$로 추출물의 에틸아세테이트 분획과 유사한 활성을 나타내었다. $^1O_2$로 유도된 사람 적혈구의 세포손상에 대한 보호 효과 실험에서 에틸아세테이트 분획은 농도 의존적($5{\sim}50{\mu}g/mL$)으로 세포보호 효과를 나타내었다. 에틸아세테이트 분획의 세포보호활성(${\tau}_{50}$)은 $5{\mu}g/mL$에서 45.6 min으로 모든 농도에서 비교 대조군인 (+)-${\alpha}$-tocopherol 보다 더 높은 세포보호 효과를 나타내었다. 이상의 결과들로부터 자색고구마의 에틸아세테이트 분획은 뛰어난 항산화능을 나타내며, 이는 피부노화 억제를 위한 항노화 기능성 화장품원료로 응용될 수 있는 가능성을 시사하였다.

• 한국식품영양학회:학술대회논문집
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• 한국식품영양학회 2001년도 동계 학술심포지움
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• pp.126-126
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• 2001

The Rhus verniciflua contains alkly(en)-catechol type allergens with a saiurated or unsaturated alkly chain of 15 or 17 carbon atoms. It has been recognized as an extremely active allergen causing skin reactions similar In poison ivy. The allergic contact dermatitis induced by the urushiol is known to be mediated be T lymphocytes whicht specifically recognize the hepten urushiol. Therefore. direct use of this plant as a medicinal purpose might imply a considerable hazard in Korea. In this study, using the established method for the detoxification from the stem bark of Rhus verniciflua, an strong antioxidant substance was isolated and characterized DPPH (diphenypricryl hydrazyl) assay measures hydrogen atom-donating activity and hence provides a measure of free radical scavenging antioxidant activity. DPPH, a purple-colored stable free radical, is reduced to yellow-colored diphenylpicryl hydrazine by antioxidants to deducing agents. Antioxidative effects of the water extract from RV were measured by DPPH assay. Twenty microliters of the extract was added to 1ml of 100mM DPPH solution in ethanol The mixture was shaken and left to stand for 10min at room temperature. The crude water extracts was purified by using HPLC method with a DEAE (anionic type), CN, ODS column. The purified compound remained stable at pH 3.0-6,0, but unstable above pH 6.5. It was stable heat at 10$0^{\circ}C$ for 4 hours, but still had about 80% of residual activity after treatment at 10$0^{\circ}C$ for 5 hours. The elemental composition of the HR-EI mass spectrum at m/z 170.02 was estimated the empirical formula as $C_{7}$ $H_{6}$ $O_{5}$. $C_{10}$ $H_4$ $O_2$N$_1$, $C_{5}$ $H_4$ $O_4$N$_3$, $C_{8}$$H_2O$$_1$N$_4$. In antimicrobial test, no inhibition was observed against Gram-positive and negative bacteria. This compound was stronger than that of commercial antioxidant by DPPH test, such as BHT, BHC at the same concentration (20$\mu$g/ml).ml).

• 복식문화연구
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• 제17권1호
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• pp.76-89
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• 2009

Popular music unites people who have different genders, ages, locals, and values. Through the popular music, youth interchange their emotion and create their fashion. Fashion and music formed the twin pillars on which the first historically significant youth sub-culture was built. Glam rock and Punk rock which won popularity in the 1970s influenced the fashion of the times. The purpose of this study is to compare Glam and Punk make-up which appeared as a symbol of the rebel against an older generation. The methodology utilized in this study was the analysis of materials from the survey through the literature, internet sites, and visual references. The results of this study are as follows: In face make-up, Glam used a white base to appear cosmic; on the other hand, Punk used a white base to appear pale and horrid. In eye make-up, Glam used black, pink, and blue eye shadow, and accented the eye by using black eye lines. Punk used black eye shadow, and drew black circles or squares around eyes. In lip make-up, Glam used pink, purple, red, and black lip color and silver and pink lip gloss to glitter. Punk used red and black lip color to appear horrid. In body make-up, Glam used glitter powder to appear with a bright skin. Punk drew tattoos and horror patterns in their body. The common themes of Glam and Punk make-up were rebellion, androgyny, and the beauty of ugliness as well as a self-created persona.

• 복식
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• 제54권7호
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• pp.55-62
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• 2004

Research into the ancient dyeing and weaving culture is of critical importance to the fact that they constitute an integral part of the Korean costume. Due to the absence of the originals reflecting ancient costume cultures, it is difficult to figure out what the dyeing and weaving culture was like in ancient times. Because of limited visual materials available from the wall paintings of ancient tombs, studies conducted so far concerning the costume culture for the Goguryeo have focused on visual elements such as shape, structure, and type. As a result, research into ancient Korean dyeing and weaving cultures hasn't been properly made. Thanks to the presence of both some dyeing fabric originals from Goguryeo's neighboring countries and some visual materials like the wall paintings of the Goguryeo, it may be possible to obtain some clues to the dyeing and weaving culture. The dotted Pattern costumes were selected such as Muyongchong, No. 1 Jangcheon Tomb, Gakjeochong, Samsilchong, Ssangyeongchong, Susanri Tomb. According to a book titled ‘Hanwon’, the Goguryeo people manufactured fabrics in such a way that resist-dyed spots produced elaborate patterns over the purple fabric. It can be safely said that such dot patterns were produced by means of dyeing rather than weaving, because identical patterns aren’t well produced by means of painting and embroidery. Considering Goguryeo’s natural features, the dot patterns mentioned in historical literatures are thought to have been produced using animal’s skin. However, there is highest possibility that the dot Patterns were Produced using tie-resist dyeing or wax-resist dyeing techniques. With respect to the dyeing and weaving culture for the Goguryeo, one must refer to neighboring countries’ dyeing and weaving environments, given that the Goguryeo had engaged substantial cultural exchanges with China.

• 한국식품저장유통학회지
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• 제7권3호
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• pp.285-290
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• 2000

Anthocyanin 색소원(자색고구마, 꽃양배추, 적양배추, 포도, 흑미, 가지, 무화과)의 색가를 조사하고 이들 중 색가가 높은 자색고구마, 꽃양배추, 적양배추 및 포도과피를 선정하여 이들 색소의 안정성에 미치는 금속이온, ascorbic acid, 자외선 및 가열의 영향을 조사하였다. 자색고구마와 포도과피의 색소는 $Mn^{2+}$에 의해 색소의 안정성이 가장 크게 저하되었으며, 적양배추와 꽃양배추 색소는 모두 $Cu^{2+}$이온에 의해 안정성이 가장 크게 저하되었다. Ascorbic acid와 자외선 및 가열은 anthocyanin 색소의 안정성을 저하시켰는데, 그 정도는 색소원에 따라 달랐다. 이들 요인들에 대한 안정성은 자색고구마 색소가 가장 높았으며, 다음으로 꽃양배추, 적양배추 및 포도과피의 색소 순이었다. 색소원에 따라 색소의 안정성이 달라지는 것은 이들 anthocyanin색소를 구성하는 색소성분의 차이에 기인한다.

• 대한두경부종양학회지
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• 제39권2호
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• pp.31-34
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• 2023

Pilomatricoma is characterized by a semi-transparent epidermis, especially pigmented pilomatricoma, containing melanocytes in basaloid cells, which are dark and purple, resembling vessel-derived skin masses. If the vascularity at doppler ultrasound is high before surgery, it may be misdiagnosed. A 10-year-old female patient visited our clinic because of a mass in the right ear triangular fossa. Ultrasonography was performed, and a vascular-origin tumor was suspected because of the high vascularity. The excised mass was diagnosed as pigmented pilomatricoma by a pathologist. Pilomatricoma is mistaken for other masses owing to its various phenotypes. A misdiagnosis can lead to misdirected strategies which can cause delayed treatment and can result in an increase in the size of the pilomatricoma, making the sequalae of surgery more complicated. For proper treatment, careful examination and evaluation are required before surgery.