• 한국잠사곤충학회지
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• 제35권1호
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• pp.52-59
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• 1993

비누 정련 견사와 효소 정련 견사의 결정 구조는 정련 구조 중 처리온도의 차이에 의하여 효소 정련 견사의 결정성이 비누 견사의 결정성 보다 높다고 전보(김·남, 1992)에서 보고하였는데 이와같은 정련 견사의 결정성의 차이가 정련 견사를 열처리를 하였을 때 어떻게 변화하는지를 밝히기 위하여 두가지 방법으로 정련한 견사에 대하여 습열 처리와 동결 처리한 후 특성을 분석한 결과는 다음과 같다. 1. 정련 견사를 습열 처리한 경우 강력과 신도는 모두 저하되었으며 비누 정련 견사는 습열 처리온도의 상승과 함께 열 분해 온도도 고온측으로 이동하고 IR crystallinity도 증가하였으나 효소 정련 견사는 습열 처리에 의하여 열 분해 온도와 IR crystallinity의 큰 변화가 없었다. 이와 같은 결정 구조의 차이는 비누 정련 견사는 습열 처리로 재배향 결정화가 일어나 결정화도는 증가되었으나 효소 정련 견사는 습열 처리에 의한 재배향 결정화보다 습열 처리에 의하여 팽윤되어 수축하는 과정에서 배향성이 저하되기 때문에 결정성은 더 이상 증가되지 않은 것으로 추측된다. 2. 정련 견사를 동결 처리하였을 때 강력과 신도는 약간씩 감소하는 경향이었으나 열 분해 온도와 IR crystallinity는 비누 정련 견사와 효소 정련 견사 모두 큰 변화가 없었다.

• 한국의류산업학회지
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• 제14권4호
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• pp.648-659
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• 2012

This research categorizes fundamental data needed to develop eco-friendly fabrics treated with bamboo leaf & pine leaf extracts. The effect of mordant on those fabrics was analyzed through the measurement of mechanical properties and the estimation of primary hand values for cotton and silk fabrics dyed with bamboo leaf and pine leaf extracts that were later treated with various mordants. When cotton was dyed with bamboo leaves and pine leaves extracts, EM, WT, 2HB, 2HG, 2HG5, LC, T, and W increased however, RT, SMD, and RC decreased compared to raw cotton fabric. The B, G, and MIU increased after mordant treatment to the dyed cotton and resulted in a stiffer and rougher cotton's hand. EM, WT, RT, MIU, WC, T, and W increased (in terms of silk); however, LT, B, 2HB, G, 2HG, 2HG5, MMD, SMD, and LC decreased compared to raw silk fabric. Similar to the dyed cotton, mordant treatment increased the MIU and LC of dyed silk subsequently, the hand became stiffer and rougher. A greater tannin adsorption results in an increased mechanical property and the primary hand value. For both fabrics, mordant treatment made its smoothness drop. However, the scale of drop for cotton was significant, while the scale of the drop for silk was minor. In terms of type of mordant, femordant and natural-mordant treatment influenced the tensile, shear, surface properties of fabrics, and primary hand values more than Cu-mordant and synthetic-mordant in addition, this increased the stiffness, hardness, and roughness of fabrics.

• Current Research on Agriculture and Life Sciences
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• 제7권
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• pp.73-81
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• 1989

본 실험은 견직물의 염색시에 많이 사용되는 Acetic Acid, Sulphuric Acid 및 Formic Acid등의 산성화학약제 처리가 생사의 물리적 성질에 미치는 영향을 규명한 것으로서 그 결과는 다음과 같다. 생사의 강력(g/d)은 공시 3개약제 다같이 온도 및 pH 변화에 따른 차이를 인정할 수 없었다, 생사의 신도(%)는 Acetic Acid 및 Sulphuric Acid $40^{\circ}C$ pH 3에서 Formic Acid $80^{\circ}C$ pH 4에서 유의차 있게 저하되었다.

• 한국잠사곤충학회지
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• 제22권1호
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• pp.63-68
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• 1980

제사업의 경영적 특성을 고려하여 경영수익성의 격차를 결정짓는 요인을 비교 분석하여 다음과 같은 결과를 얻었다. 1. 제사업의 경영수익성을 결정짓는 것은 매출이익률이다. 2. 매출이익률을 실현시키는 것은 생사원가구성비목 중 일반 관리 판매비이다. 3. 생사원가와 상관이 높은 비목은 제조경비이다.

• 한국미생물·생명공학회지
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• 제30권1호
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• pp.39-45
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• 2002

실크 피브로인의 가수분해를 통해 생산된 펩타이드 성분에 의해 murine macrophage RAW264.7 세포에 의한 nitric oxide 생성이 촉진됨을 발견하였다. 산 및 효소적 가수분해물의 가수분해도를 비교한 결과 실크 피브로인 단백질은 산 가수분해에 의해 가장 효과적으로 분해되었으며 효소적 가수분해의 경우에는 pepsin, trypsin, Alcalase의 순으로 가수분해도가 높았다. 산 가수분해물을 단독으로 macrophage에 처리하였을 때 처리농도에 따라 NO 생성촉진활성이 높아졌으나 이 활성은 가수분해물 내의 펩타이드 성분들과 오염되어 혼재하는 LPS 성분의 상호작용에 의한 것임이 확인되었다. 함유된 LPS 성분들을 한외여과에 의해 제거한 효소적 가수분해물들의 NO 생성촉진활성은 peptic hydrolysate가 가장 높았고 tryptic-, Alcalase hydrolysate 순이었다. 이러한 활성의 차이는 가수분해물 내의 고분자량 펩타이드 분포가 많을수록 활성이 높다는 관계에 기인하였으나 산 가수분해물의 경우에는 예외적으로 나타났다. 각 가수분해물의 아미노산 조성을 분석한 결과 arginine, lysine의 함량이 높을수록 활성이 높으며 alanine의 glycine에 대한 비율이 커질수록 활성이 높아졌다. 산 가수분해물의 경우에는 낮은 분자량의 펩타이드들이 많이 분포하지만 arginine 및 alanine의 함량이 높아 비교적 높은 NO 생성 촉진활성을 나타내는 것으로 확인되었다.

• International Journal of Industrial Entomology and Biomaterials
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• 제11권1호
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• pp.13-19
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• 2005

Biotechnological researches in Central Asian Research Institute of Sericulture were developed since 1981 when laboratory of artificial diets for mulberry silk­worm was created. The researches were directed not only to creation of accessible artificial diets (AD) for off-season mass rearing of economical beneficial insect and for industrialization of sericulture but also to obtaining of easy reproducible source of animal proteins, carbohydrates, lipids, enzymes, enzymes inhibitors and other metabolites - bioresource for manufacture of oriental medicine preparations. Space experiments with silkworms became possible with use of AD. These experiments used mulberry silkworm as high effective board test organism with outstanding developmental, reproductive and transgenic properties having impor­tant significance in future of cosmonautics. Introduction to practice of bioprotective and ecologically pure method of drying and sterilizing of green cocoons and by-products of silk manufacture allows to increase efficiency of cocoons reeling technology as well as to preserve nativity of biological active substances in mulberry silkworm pupae that is unachievable by traditional methods of raw material processing. New spheres of application of two important silk proteins - fibroin and sericin in medicine, cosmetics, for bio- and nanotechnology are opening with use of biotechnological approaches. At present the achievements and experience of R & D in these fields are used in creation of modern pests biocontrol agents. Schemes of efficient processing of cocoon raw material, by-products and wastes of sericulture and cocoon processing are devel- Institute of Physiology and Biophysics, Uzbek Academy of Sciences, I, Niyazov street, 700095, Tashkent, Uzbekistan. oped for obtaining of traditional and new consumer products.

• BMB Reports
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• 제47권7호
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• pp.382-387
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• 2014

Corn silk (CS) has long been consumed as a traditional herb in Korea. Maysin is a major flavonoid of CS. The effects of maysin on macrophage activation were evaluated, using the murine macrophage RAW 264.7 cells. Maysin was isolated from CS by methanol extraction, and preparative $C_{18}$ reverse phase column chromatography. Maysin was nontoxic up to $100{\mu}g/ml$, and dose-dependently increased TNF-${\alpha}$ secretion and iNOS production by 11.2- and 4.2-fold, respectively, compared to untreated control. The activation and subsequent nuclear translocation of NF-${\kappa}B$ was substantially enhanced upon treatment with maysin ($1-100{\mu}g/ml$). Maysin also stimulated the phosphorylation of Akt and MAPKs (ERK, JNK). These results indicated that maysin activates macrophages to secrete TNF-${\alpha}$ and induce iNOS expression, via the activation of the Akt, NF-${\kappa}B$ and MAPKs signaling pathways. These results suggest for the first time that maysin can be a new immunomodulator, enhancing the early innate immunity.

• 복식
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• 제57권1호
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• pp.163-175
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• 2007

This study examines 74 pieces of textiles of Daegaya found in the Jeesan-dong Tomb and Saeng-cho Tomb, and analyzes their characteristics and weaving techniques. Dagaya is known to have produced ramie and hemp from bast fibers. The hemp textiles were all woven in plain weave, and the ramie textiles were woven either in plain weave or plain braid. The ramie textiles were slightly more dense compared to the hemp textiles, however, both had average densities between 0.92 to 0.93, showing that they are balanced plain weave textiles. It was also found that S twist threads were used in the production of the hemp and ramie textiles. The dyed textiles on iron remains were found to be the oldest textiles to use dying techniques for patterns. Silk textiles were woven in plain weave, twill weave, and leno weave. All of the silk were made with non-twisted thread. The densities were between 30 to 58.3 and the the density rates were 1.0 to 2.5 for plain weave silk, this showed that varieties of plain weaver created by different densities of warp and well. The average density of cho was $53.4{\times}22.5/cm^2$ the density rate was about 2.40, therefore warp was woven more dense compared to the weft. There were degummed and raw silk used in silk textiles, but most of them were found to be degummed thread.

• 한국의류학회지
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• 제34권5호
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• pp.754-764
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• 2010

Most silk fabrics are produced only after the degumming process to make the best use of the properties and have restricted silk processing that do not hinder their performance. However, considering the highly increased preference for natural fibers and the shortage of raw silk, high-quality upgraded silk product functions are required by the development of a processing technology and a good design. This study analyzes the changes with the samples by the functional finish such as softening finishing, wash and wear, tannin weighting by measuring the objective hand of scoured silk and three finished ones using KES-FB. As a result, the change of objective hand of finished silk fabrics that improves functionality was analyzed and compared. The increase of KOSHI after the finish became stiffer show that the silk fabric samples are appropriate for summertime clothes with the retention of a certain clothing climate for the body. The stiffness of finished fabrics for the normal had a closer relationship with the density of fabrics than the type of finishing. The samples (after the softening finishes) maintain better elasticity according to the properties of the softener and the finishing agent. Although the specimens of this study were thin fabrics, their elasticity against compression increased after the softening finishes and became softer than degummed silk. The surface properties of georgette were changed by all types of finishing.

• International Journal of Industrial Entomology and Biomaterials
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• 제7권2호
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• pp.191-195
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• 2003

The impact of antibiotic (Norfloxacin) administration ,at different concentration (50 ppm and 100 ppm) on commercial characters of bivoltine $({CSR_2}{\times}{CR_4})$ and the cross breed race $({BL_67}{\times}{CSR_101})$ was studied. The result indicated that antibiotic administration with different concentrations significantly improved the rearing and cocoon parameters like larval duration, larval weight, growth index, single cocoon weight, single shell weight and shell ratio. The post cocoon parameters like average filament length, non-breakable filament length, raw silk percentage, raw silk recovery percentage, denier, reelability and neatness were recorded significantly higher in antibiotic treated batches. The better performances of these parameters were recorded with the increase of antibiotic concentration.