• Title/Summary/Keyword: 섬유 성분

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The Conservation of the Mourning Clothes from the Kyonggi Provincial Museum (경기도 박물관 소장 상복에 대한 보존처리)

  • Bai, Sang-kyoung
    • Journal of Conservation Science
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    • v.7 no.2
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    • pp.54-59
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    • 1998
  • The purpose of this study was to clarify the performance of mourning clothes from Konggi Provincial Museum, to identify the fiber of these clothes, and investigate the washing effect by wet cleaning. Shapes of mourning clothes were studied, and some ingredients of non fibrous extracted matter were analyzed by FT-IR spectroscopy to clarify the performance of mourning clothes. Microscope examination, melting test, and stain test were used for the identification of the fiber. SEM was used to confirm the effect of washing after mourning clothes washed by wet cleaning added anionic detergent, sodiumdodecylbenzenesulfonate (LAS). The performance of these clothes was mourning cloth, not mummy cloth as results of analyses to the clothes' shapes and extract ingredients. The extract ingredients were carbohydrate, alkyl alcohol, and aldehyde. They didn't have any nitrogen compounds and fatty acids. The fiber identification showed this fiber was hemp. The effect of washing was high as the surface of fiber was clean and linear after wet washing.

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Reaction Kinetics and Absorption Property of Low Molecular Weight Endo-glucanase Component of Cellulase (Cellulase 성분 중 Endo-gluanasec의 반응 및 흡착특성에 관한 연구)

  • Ryu, W.S.;Ryu, Dewey D.Y.
    • Microbiology and Biotechnology Letters
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    • v.8 no.1
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    • pp.41-46
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    • 1980
  • Low molecular weight endo-glucanase was partially purified from cellulase complex using Sephadex G-100 gel chromatography. Biochemical properties of the purified component was investigated. Optimum pH and temperature determined were 6.0 and 5$0^{\circ}C$, respectively. Enzymatic hydrolysis of four cellulosic substrates having varying crystallinity was evaluated. It was found that hydrolysis of amorphous region was followed by the hydrolysis of crystalline region. In order to examine the effect of adsorption of the enzyme onto the cellulosic substrates on the hydrolysis kinetics, adsorption studies were carried out. Time course of adsorption of low molecular weight endo-glucanase onto various cellulostances was observed for 25 min. The rate and amount of adsorption to amorphous cellulose was greater than those to the crystalline cellulose. This result suggested that the role of endo-glucanasc was more important to the hydrolysis of amorphous cellulose than to the crystalline region of the cellulose.

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유통법을 이용한 3성분계 유기용제의 인화특성에 관한 연구

  • 임우섭;목연수;최재욱
    • Proceedings of the Korean Institute of Industrial Safety Conference
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    • 1998.11a
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    • pp.83-88
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    • 1998
  • 방향족 화합물은 합성수지, 합성고무, 합성섬유 등의 석유화학제품의 원료와 2성분 또는 3성분 이상을 혼합한 도료공업에서 광범위하게 사용되고 있다. 그러나 이들 물질들은 공정상의 제조, 저장, 처리과정에서 고온, 고압의 조건에서 많이 노출되어 있을 뿐 아니라 취급과 사용 중에 부주의로 인한 폭발과 화재사고가 증가하고 있다. 그러므로 사고예방을 위해서는 취급하는 물질의 기본적인 위험 특성을 정확하게 파악하여 예방대책을 강구하여야 하므로, 인화성 액체의 경우에는 위험성의 지표인 인화점(Flash point)을 반드시 파악하여야 한다. (중략)

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Chemical Composition and Quality of Persimmon Peels According to Cultivars (품종별 감피의 화학적 성분 특성)

  • Kim, Suk-Kyung;Lim, Jung-Hyung;Kim, Young-Chan;Kim, Mi-Yeon;Lee, Byung-Woo;Chung, Shin-Kyo
    • Applied Biological Chemistry
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    • v.48 no.1
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    • pp.70-76
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    • 2005
  • Approximate composition and physicochemical properties of 7 cultivars of persimmon peel, by product of dried-persimmon, were examined. The content of crude fiber were different according to cultivars. Glucose, fructose and sucrose were isolated by HPLC; also, myristic, palmitic, palmitoleic, oleic and linolenic acid were the major fatty acids in persimmon peel. Total and free amino acid were 241.32-371.45 mg/100 g and 3.69-28.31 mg/100 g, respectively; also, aspartic and glutamic acid were the predominant amino acids, reaching a level between 19.6 and 24.8% of total amino acids. Insoluble dietary fiber content(34.89-50.76 g/100 g) was remarkably higher than soluble dietary fiber (2.44-7.09 g/100 g). Total carotenoids were in the range of 179.4-340.6 mg/100 g, and total phenolic compounds ranged from 44.07-196.98 mg/100 g, showing differences between cultivars.

Comparative Studies on the Dietary Fiber, Amino Acids and Lipid Components of Yullmoo and Yeomjoo (율무와 염주의 식이섬유, 아미노산 및 지질 성분의 비교)

  • Woo, Ja-Won;Lee, Mi-Suck;Lee, Hee-Ja;Kim, Hyong-Soo
    • Korean Journal of Food Science and Technology
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    • v.21 no.2
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    • pp.269-275
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    • 1989
  • The study was conducted to compare the components such as proximate composition, total dietary fiber(TDF) content, acid detergent fiber(ADF) content, lignin, water binding capacity(WBC), amino acid composition and lipid components from brown Job's tears, dehulled Job's tears, brown Yeomjoo and bran of Job's tears. The results from this study are summerized as follows: Total dietary fiber(TDF) content of Job's tears, brown Job's tears, brown Yeomjoo and bran of Job's tears were 2.70%, 3.86%, 4.33% and 13.3% each. Water-binding capacity(WBC) of TDF and ADF were $2.63{\pm}0.02g\;H_2O/g$ TDF and $5.89{\pm}0.15g\;H_2O/g$ ADF each. In amono acids composition of samples, glutamic acid content was the highest and the next was leucine. Chemical score of leucine in dehulled Job's tears was very high(189), in contrast lysine was very low$(22{\sim}23)$ So lysine was a first limitting amino acid in Job's tears and Yeomjoo. Neutral lipid contents were 90.89%-96.55%, glycolipid contents were 2.35%-7.48% and phospholipid contents were very low. The major fatty acids of lipid fractions were palmitic acid. oleic acid and linoleic acid.

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Impact of Protein and Lipid Contents on the Physical Property of Dried Biji Powder (건조비지분말의 물리적 특성에 대한 단백질과 지질 함량의 영향)

  • Kim, Jaehyun;Jeong, Jin Boo;Kim, Hyun-Seok
    • Food Engineering Progress
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    • v.22 no.4
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    • pp.344-352
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    • 2018
  • The effects of chemical compositions (protein, lipid, and dietary fiber) on the physical properties of dried biji powders were investigated. The raw biji was freeze-dried (control) and hot-air dried (untreated). The untreated biji was further defatted and deproteinated. The prepared biji powders were analyzed for the proximate composition, total dietary fiber (TDF), water absorption index (WAI), water solubility index (WSI), swelling power, solubility (including the quantification of soluble carbohydrate and protein fractions), and final viscosity (using a rapid visco analyzer). Control and untreated biji powders exhibited the similar chemical compositions. The defatted biji possessed higher TDF, although its protein content did not significantly differ for control and untreated ones. The deproteinated biji consisted mainly of TDF. WAI and swelling power increased in the order: deproteinated > defatted > control > untreated biji powders. WSI and solubility increased in the order: control > untreated > defatted > deproteinated biji powders. The similar patterns were observed for soluble carbohydrate and protein fractions. The deproteinated biji revealed the highest viscosity over applied temperatures, while the untreated one was lowest. Overall results suggested that the physical properties of the dried biji powder were reduced by protein and fat, but enhanced by dietary fiber.

Measurement of the proximate components of fresh ginseng (Panax ginseng C.A Meyer) using Near-Infrared Reflectance Spectroscopy (근적외선(NIR) 분광법에 의한 수삼의 성분 측정)

  • Chang, Kyu-Seob;Lee, Eui-Suk;Lee, Gyu-Hee
    • Korean Journal of Agricultural Science
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    • v.28 no.2
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    • pp.116-124
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    • 2001
  • The measurement values of proximate composition in fresh ginseng could provide the important information for red ginseng processing. The measurement of them were performed by near-infrared (NIR) spectroscopy. Linear regression model for the predicting of proximate composition was developed and validated. The regression values of moisture, crude starch, crude ash, crude fiber, calcium, and magnesium contents were shown as 0.918, 0.951, 0.897, 0.728, 0.933, and 0.390, respectively. Therefore, the proximate composition of fresh ginseng could be measured by NIR, feasibly.

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Analysis of Nonfibrous Matters in the Textiles Exhumed from Keumreung-Ri, Pajoo Application of KS Test Method (파주 금릉리 출토복식의 섬유외 성분 연구 -KS 시험규격의 활용을 중심으로-)

  • 안춘순;조한국
    • Journal of the Korean Society of Clothing and Textiles
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    • v.22 no.6
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    • pp.772-780
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    • 1998
  • The purpose of this research was to investigate the fiber content of and the characteristics of non-fibrous matters within the textiles exhumed from Keumreung-Ri, Pajoo of Kyunggi-do. Various microscopic methods' and the IR spectroscopy were used for the identification of fibers. The KS K 0251 Test Method as well as the IR spectroscopy and the SEM were used for the analysis of econ-fibrous matters. Fiber identification showed that each of the Pajoo samples were composed either of silk, cotton, or ramie. The results of the analysis of non-fibrous matters were as follows. The amount of water-extracted compound exceeded that of chloroform-extracted compound in both Pajoo 2 and Pajoo 5 samples. In Pajoo 5 sample which have already been dry cleaned using the mixed solution of n-hexane and n-dacane, the amount of chloroform extracted compound was 0% of the total extracted matter. The enzyme and HCI disintegration steps further removed the soils those were nonsoluble in water or chloroform. The most extraction was achieved at the HCI extraction stage.

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50MPa Ternary Non-Cement Mortar Strength Development Mixing with Hybrid Fibers Cured by Room Temperature (상온양생에 의한 하이브리드 섬유를 혼입한 50MPa급 3성분계 무시멘트 모르타르 강도발현)

  • Cho, Sung-Won;Cho, Sung-Eun;Kim, Young-su
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2020.06a
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    • pp.179-180
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    • 2020
  • CO2 emissions are caused by cement manufacturing process. To solve this problem construction industry are using industrial by-products to replace cement. In this study, three different industrial by products were used and mixed with hybrid fibers to enhance bond strength. As the result, Regardless of the mixing rate of silica fume, the compressive strength of the ternary non cent mortar was higher than that of OPC and binary. And mixed hybrid fibers cured by room temperature compressive strength were 23% higher than those without hybrid fibers.

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