• Title/Summary/Keyword: black liquor

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Characterization of Kraft Lignin by 13C-Nuclear Magnetic Resonance Spectroscopy (13C-NMR에 의한 크라프트 리그닌의 특성)

  • Lee, Beom-Goo;Hwang, Byung-Ho
    • Journal of the Korean Wood Science and Technology
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    • v.17 no.4
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    • pp.44-56
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    • 1989
  • To recover much residual lignin from the black liquor of kraft pulp. the black liquor was extracted and purified with many organic solvents. Many kinds of lignins were isolated from each fraction obtained and the characteristics of these lignins investigated by $^{13}C$-NMR spectroscopy. If M$\ddot{o}$rck's method was compared with Kirk's method. M$\ddot{o}$rck's method was better than Kirk's method because the particular signals of each lignin occur more in the former than m the latter. Especially the $^{13}C$-NMR spectrum of the MCS fraction identifies with those of other researchers. The experiment that the kraft lignin from Pinus densiflora S. et Z. found in Korea was investigated by $^{13}C$-NMR spectroscopy was performed first in Korea.

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Xylanase Production by Mixed Culture Using Crude Hemicellulose from Rice Straw Black Liquor and Peat Moss as an Inert Support

  • Shata, Hoda Mohamed Abdel Halim;El-Deen, Azza Mohmed Noor;Nawwar, Galal Abdel Moen;Farid, Mohmed Abdel Fattah
    • Journal of Applied Biological Chemistry
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    • v.57 no.4
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    • pp.313-320
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    • 2014
  • Black liquor (BL) is a by-product of rice straw pulping process. It is a low costs raw material for production value-adding proteins and enzymes, which has been paid more and more attention to reduce its environmental pollution. Mixed cultures of micelial fungi, Trichoderma reesei Northern Regional Research Laboratory (NRRL)11236, Trichoderma reesei NRRL 6165 and Aspergillus niger strains NRC 5A, NRC 7A, and NRC 9A were evaluated for their ability to produce xylanase using crude hemicellulose (CHC) prepared from BL and peat moss as an inert support under solid state fermentation (SSF). The most potent strains, A. niger NRC 9A (818.26 U/g CHC) and T. reesei NRRL 6165 ($100.9{\pm}57.14$ U/g CHC), were used in a mixed culture to enhance xylanase production by co-culturing under SSF. In the mixed culture, xylanase production ($1070.52{\pm}12.57$ U/g CHC) was nearly1.3 and 10.6-fold increases over the activities attained in their monocultures, A. niger NRC 9A and T. reesei NRRL 6165, respectively. Optimization of the culture parameters of the mixed culture SSF process, concentration of ammonium sulfate and corn steep liquor, CHC/peat moss ratio, inoculum size and ratios of the two strains, initial pH value, initial moisture content and incubation time, exhibited a significant increase ($2414.98{\pm}84.02$ U/g CHC) in xylanase production than before optimization.

Dyeing and Deodorizing Properties of Cotton, Silk, and Wool Fabrics Dyed with Various Natural Colorants (여러 가지 천연 염재를 이용한 면, 견, 모직물의 염색 및 소취 특성)

  • Hwang, Eun-Kyung;Lee, Young-Hee;Kim, Han-Do
    • Textile Coloration and Finishing
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    • v.19 no.6
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    • pp.12-20
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    • 2007
  • Four kinds of natural dying solutions (natural colorant extracts)were obtained by extraction from sappan wood, black tea, peony, and clove using water as extracting solvent at $90^{\circ}C$ for 90 min with liquor ratio (solid natural colorant material/solvent water, weight ratio) of 1/10. The dyeing, colour fastness and deodorizing properties of fabrics (cotton, silk, and wool fabrics) dyed with natural colorant extracts were compared. It was found that these properties were significantly dependent on the concentration of extracts, the structure of colorant, and the kind of fabrics. The K/S value of dyed cotton fabric increased in the order of peony < sappan wood < clove < black tea, however, the values of dyed silk and wool fabrics were in the order of peony < sappan wood < black tea < clove. Colour fastness (light, water, and perspiration fastness) was in the range of 3 - 5 grade except for sappan wood. The deodorizing performance of fabrics dyed with various natural colorants extracts was in the range of 56 - 99%. The deodorizing performance increased in the order of peony < black tea < sappan wood < clove. Especially, the deodorizing performance of all fabrics dyed with clove was found to be the highest at 98-99%.

Preparation of Cation-exchange Resin from Lignin

  • Kamelt S.
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.36 no.5 s.108
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    • pp.78-84
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    • 2004
  • Lignin precipitated from black liquor of soda pulping of bagasse was used to prepare cation-exchange resin. The effect of sulfuric acid treatment, concentration of phenol and formaldehyde on the properties of the prepared cation-exchange resin was investigated. It was found that sulfonated resinified phenolated lignin gave a resin with an ion-exchange capacity higher than that of resin, which resulted from sulfonation of resinified lignin at zero phenol concentration. Infrared spectroscopy of the prepared ion-exchange resin shows anew bands at 1060, 1160, 1280 and $1330\;cm^{-1}$ which indicated to the presence of $SO_{3}$.

A Study 'On the Diagnosis and Treatment of Jaundice According to the Morbid Pulse' in the Chapter 15 of Synopsis of Golden Chamber (금궤요약(金匱要略). 황달병맥증병치제십오(黃疸病脈證幷治第十五)에 대(對)한 연구(硏究))

  • Kim, Myeong-Soo;Ahn, Jun-Mo;Cho, Gyeong-Jong;Jeong, Heon-Young
    • Journal of Korean Medical classics
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    • v.19 no.2 s.33
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    • pp.115-137
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    • 2006
  • The Diagnosis and Treatment of Jaundice According to the Morbid Pulse in the Chapter 15 of Synopsis of Golden Chamber sets forth the classification, symptom, method of treatment, formula, prognosis of jaundice. The contents of this chapter can be induced by(from) yellowing and jaundice These two disease patterns assume various aspects of disease cause, pathomechanism, symptom, prognosis, and treatment. Jaundice was at first classified into liquor jaundice,dietary irregularly jaundice, black jaundicem abd sextual taxation jaundice, later classified into liquor jaundice, dietary irregularly jaundice, black jaundice, sextual tatation jaundice, and yellow sweat. the disease cause and pathomechanism of jaundice are said to be said to be due to the damp-heat, which is attacked with the evil of wind and dampness to affect the spleen-stomach and the liver. and to the inveterate drinking, damage by food, sextual taxation jaundice, sextual taxation, and vacuity taxation. This chapter mainly refers to jaundice as damp-heat, so that it lays down fundamental principles of clear heat and disinhibit dampness. In the prognosis of jaundice, ingibited urination shows symptoms of jaundice, and neither urination nor damp-heat develops symptoms of jaundice. and jaundice with thirst is difficult to cure, and that the symptoms of the abdominal fullness is also difficult to cure, while jaundice without thirst is ease to cure. Of the 18 days of suffering from jaundice, the symptoms of jaundice get better before and after 10 days. I think, however, that getting worse of its symptoms makes more meaningful clinically.

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Separation and Utilization of Main Components of Hardwood by Organosolv Pupling (Organosolv 방법(方法)에 의(依)한 활엽수(闊葉樹) 주요(主要) 조성분(組成分)의 분리(分離) 및 이용(利用))

  • Paik, Ki-Hyon;An, Byoung-Jun;Nahm, Won-Suk
    • Journal of the Korean Wood Science and Technology
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    • v.16 no.4
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    • pp.70-78
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    • 1988
  • To separate and utilize the main components of hardwood (Quercus mongolica) by organosov pulping (ester pulping), chips were cooked at various conditions such as; the solvent ratio (acetic acid: ethylacetate: water, 50:25:25; 33:33:34; 25:50:25), maximum temperature (165, 170, $175^{\circ}C$), and cooking times (2, 2.5, 3 hr). The pulps were bleached by the sequences of CEDED, C/DEDED, PEDED. Lignin, sugars, and acetic acid were separated from black liquor and washing liquors. 1. The selective delignification at optimal pulp yield (43-45%) was obtained by cooking at acetic acid: ethylace tate: water ratio of 33:34:34 for 3 hr at $170^{\circ}C$. But in this case, kappa no. of the pulp was not reduced under 60 points. 2. Kappa no. of the pulp could be dropped by an acetone wash to remove reprecipitated lignin a t cooked pulp. 3. The unbleached pulps had a brightness of 45-50%, whereas the bleached pulps gave at 88-93% brightness. Tensile, burst, and tear strengths of the bleached pulps were lower than those of kraft pulp, especially in tear strength. The pulps which were bleached with CEDED sequence were higher in strengths than another bleaching sequences. 4. Lignin of 90-95%(lignin base on wood)was separated from black liquor and washing liquors, while the purified sugars and recovery of acetic acid were a low. An organic phase composed of acetic acid, ethylacetate, and water was separated to a two-phase system by proper adjustment of the solvent ratios.

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A study on the liquor package design of international competitive advantage - Focused on Soju and Sake - (국제 경쟁력을 위한 술 포장디자인 연구 - 국내소주 및 일본 Sake 중심으로 -)

  • 장욱선
    • Archives of design research
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    • v.16 no.3
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    • pp.151-160
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    • 2003
  • Packages have been used for a wide variety of purposes, for protection, for display, for transportation of goods, or for keeping personal belongings. According to the demands of society and the times, liquor packages have been specialized and have appeared in almost every shape and size without restriction to cine particular type of material. In spite of its rapid development and wide application in our society, liquor package design has rarely been considered as a subject of comprehensive study. Majoring in package design, I have become especially interested in the area of liquor package design. I would like to explore liquor package design from several aspects. With the advent of new market and the rise of a new consumer society, advertising and mass media have expanded rapidly. While convenience of use is not a major issue, serving size certainly are quality, appeal of heritage and health concerns. Heritage is a major consumer appeal in Whisky, Beer, Wine and spirits. Designers have drawn heavily on the tradition of alcoholic products, have used type and graphics to create the illusion of heritage for new products. A sidelight to the heritage aspect of spirits package is the evolution of outer boxes for international liquors. International liquors package design illustrated the past and current themes. The design is contemporary and spare. Colored panels correlated to the liquor flavor used on clean white, black, gold boxes. While this research does not deny the impact of structural innovation and convenience package design , it does deny the existence of a graphic plateau. It is assumed therefore, that development in technology can facilitate communication between East and West. This can be accomplished because as containers of products are used in social setting, their form will gradually apply strong influence to the need for economical, easily handled, easily utilized packaging. Typically, ethnic package designs are those packages containing products which are prepared and marketed to a category of people who are prepared and marketed to a culture traits. They are liquor products sold in the metropolitan New York area which are marketed specially to Asians, Hispanics, or Eurpean population. These cultural groups share numerous traits including religion, language, dietary habits and traditional drinking styles. Therefore, the products which are familiar or common in their native countries are often imported or marketed there to serve them. These packages and products are frequently found on the shelves of supermarkets in predominantly ethnic areas. That is Korea, Japan if packaging is correctly design it would appeal to the American market. My research is that oriental beverage -Soju is good example of this precept. Assumedly, there must be a degree of subjectivity since it is a mean in which the consumers can relate to its advertising. This degree to relate and identify is the degree to which the package will be remembered and purchased. Subjectivity is intimately related to purchases since there is no such thing as a rational purchase in a society that operates on mass consumption. It is essential that packages become more personal human, entertaining, and more like advertising in order to maximize merchandising potential.

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The Detergency Improvement and Fabric Damage in the Washing Treatment by Commercial Bleaching Agents (시판표백제에 의한 농축세제의 세척성 향상과 섬유 손상)

  • 배정숙
    • Journal of the Korean Home Economics Association
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    • v.37 no.2
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    • pp.113-126
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    • 1999
  • In order to investigate the detergency effect of stained cotton and PET fabric, respectively, these fabrics stained with solid soils such as carbon black, liquid paraffin, and fat and examined the detergency effect in the optimum washing condition. The evaluation of washing efficiency of washed fabrics studied by using the surface reflectance measurement before and after washing treatment. The maximum detergency effect of stained cotton and PET fabric obtained in the mixed washing liquor-bleachig agen(ml)/concentrated washig agent(g/l). To obtain the excellent detergency effect, 2-step washing treatment, pre-washing by bleaching agent only and washing by concentrated detergent, is preferred. In comparing the detergency of polyester and cotton fabric, the detergency of stained polyester fabric superior than that of stained cotton fabric because of the difference of adhesive force between soil material and fabric in preparing soled stained fabric. In this study, we also studied the degree of fabric damage by the measurement of tensile strength change. From the results of the tensile strength measurement, the damage of washed fabric before and after washing treatment was nearly changed.

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A Study on Wedding Ceremony Tablewares in Gare Dogam Euigwae(1744, 1819) (가례도감의궤(嘉禮都監儀軌)에 나타난 (동뢰연(同牢宴))소용(所用) 기용고(器用考) -1744년(年) 장조(莊租) 헌경후(獻敬后) 1819년(年) 문조(文租) 신정후(神貞后) 가례동뢰연(嘉禮同牢宴)-)

  • Kim, Sang-Bo;Lee, Sung-Woo
    • Journal of the Korean Society of Food Culture
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    • v.6 no.1
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    • pp.21-29
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    • 1991
  • To analyze tableware in wedding ceremonies of royal prince(1744, 1819) of Chosun Dynasty, the author studied the historic book-Gare Dogam Euigwae, in which wedding feast dishes for King and prince in Chosun Dynasty were described. The results obtained from the study were as follows, 1. For wedding feast dishes for prince, black lacquered table was used, and for King's wedding feast red lacquered table was used. 2. In wedding ceremony red silk table cloth was used. 3. Tables arranged in wedding ceremony had high legs. 4. Tablewares used in wedding ceremony were footed dishes. 5. Wedding ceremony arrangement was made up of four kinds of main table, a small boiled beef table, a large boiled beef table, four small round tables, a dining table, a candle stick, a incense holder, a vase with vaseholder and a liquor bottle with a holder.

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Preparation of Imitation Sauce from Enzymatic Hydrolysate of Cod Skin Gelatin (대구피 젤라틴의 효소적 가수분해물을 이용한 조미간장의 제조)

  • 김세권;안창범;강옥주
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.22 no.4
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    • pp.470-475
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    • 1993
  • The imitation sauce was prepared by using the enzymatic hydrolysate of cod skin gelatin and its product quality was also compared with three kinds of soy sauce on the market sensually. The major molecular weight of the hydrolysate used in this study was 5, 800Da and glycine, proline, serine, alanine, hydroxyproline, glutamic acid, and aspartic acid having sweet taste accounted for 65.9% of the total amino acid being in the hydrolysate. The imitation sauce was prepared the mixture of the liquor and fermented sauce (8 : 2 = v : v), where the liquor was prepared by dissolving with 10.0g the hydrolysate, 10.0g NaCl, 3.0g sucrose, 0.5g monosodium glutamate, 0.1g caramel powder, 3.0$m\ell$ fermented vinegar, 0.05g garlic powder, 0.1g black pepper powder, and 0.2g licorice powder in 100.0$m\ell$ water, boiling for 5min and filtrating with cheesecloth. From the result of sensory evaluation, the imitation sauce was at least equal to three kinds of soy sauce in product quality.

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