• Title/Summary/Keyword: Protein-fiber

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The Effects of Surface Functional Groups to Protein Adsorption (단백질흡착에 있어서 표면작용기의 영향)

  • 하기성
    • KSBB Journal
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    • v.7 no.4
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    • pp.318-324
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    • 1992
  • The adsorption characteristics of bovine serum albumin(BSA) on the modified carbon fiber and cellulose surfaces were investigated. In order to define the effects of solid surface characteristics on protein adsorption, surfaces of carbon fiber and cellulose were modified by physical and chemical treatment. The amounts of BSA adsorbed onto various solid surfaces were evaluated by batch method under various pH and ionic strength. The amount of adsorbed BSA was highly dependent on pH as well as surface functional groups.

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Characteristics of Commercial Celluloytic Enzymes (상업용 목질섬유소 분해 효소의 특성)

  • Kim, Young-Yuk;Kim, Chul-Hyun;Park, Soung-Bae;Eom, Tae-Jin
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.36 no.3
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    • pp.1-8
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    • 2004
  • It is very difficult to compare directly the research results of enzymatic process in pulp and paper industry because commercial enzymes have diversity in its property. The chemical and biological properties of commercial enzymes were Investigated to help comparison of various commercial enzymes each other. In most case, the solid content of liquid enzymes was about 20%. The higher protein content in enzyme product does not mean the higher enzyme activity. Enzymes for paper process should selected by basis of enzyme activity, not by price of enzyme products. The chemical composition of fiber was not so much change with enzyme treatment. The enzymatic hydrolysis of fiber might negligible in paper process.

The Effect of Components and yield with Different Temperature Codonopsis lanceolata Benth. et Hook . fil. (온도의 차가 더덕 ( Codonopsis lanceolata Benth , et Hook. ) 의 수량 및 성분함량에 미치는 영향)

  • 이상래
    • Korean Journal of Plant Resources
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    • v.5 no.1
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    • pp.11-23
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    • 1992
  • The experiments tvere carried out to different temperature which affected growth, yield, proximate and antitumor activity in the Codonopsis lanceolata. Growth of aerial part and subterranean partwere best at 2$0^{\circ}C$ and lower 3$0^{\circ}C$. Components of fat, protein and fiber were best at 3$0^{\circ}C$. Wild C.fonceoforo had higher contents of fat, protein, fiber and ash as compared with cultur'ed C.lanceolataArginin was predominant amino acid in both wild and cultivated C.laceolata No significant differ-ence in the mineral contents was found between the wild root and the cultivated at 30'c inbiotronroom. No minerals difference in the contents was found between the cultivated temperature.The content of elements of inorganic metal differs according to the part. C. lanceolata were subjectedto preliminary antitumer screening test with Sarcoma 180 ascites and screening on V-79 cell. Thisexperiments were conducted in accordance with the total packed cell volume method and cytotoxicity method.

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Studies on the Constiuents of Higher Fungi of Korea(XXII) - Comparative Studies on the Constituents of Lentinus edodes Grown on Various Woods - (한국산(韓國産) 고등(高等) 균류(菌類)의 성분(成分) 연구(硏究)(XXII) - 골목에 따른 표고버섯의 성분(成分) 비교(比較) -)

  • Kim, Ha-Won;Kang, Chang-Yuil;Kim, Byong-Kak;Min, Hong-Ki
    • The Korean Journal of Mycology
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    • v.8 no.1
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    • pp.21-23
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    • 1980
  • To investigate constituents of Lentinus edodes grown on various, quantitative analyses of ash, crude protein, crude fiber, crude fat, water, nonsoluble nitrogen of the mushrooms were carried out by ordinary methods. The crude fat of the mushroom grown on chestnut tree(1.82%) was greater than that grown on oak (0.76%) or alder (1.17%) tree. The crude fiber of the mushroom grown on oak tree (12.50%) was greater than those grown on alder and chestnut trees, 9.85% and 8.52%, respectively. The crude protein, ash, nonsoluble nitrogen and water contents of the mushrooms grown on the three different trees were similar.

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Efficacy of Alkali-treated Sugarcane Fiber for Improving Physicochemical and Textural Properties of Meat Emulsions with Different Fat Levels

  • Kim, Hyun-Wook;Setyabrata, Derico;Lee, Yong-Jae;Kim, Yuan H. Brad
    • Food Science of Animal Resources
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    • v.38 no.2
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    • pp.315-324
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    • 2018
  • The objective of this study was to evaluate the efficacy of alkaline-treated sugarcane bagasse fiber on physicochemical and textural properties of meat emulsion with different fat levels. Crude sugarcane bagasse fiber (CSF) was treated with calcium hydroxide ($Ca(OH_2)$) to obtain alkaline-treated sugarcane bagasse fiber (ASF). The two types of sugarcane bagasse fiber (CSF and ASF) were incorporated at 2% levels in pork meat emulsions prepared with 5%, 10% and 20% fat levels. Alkaline-treatment markedly increased acid detergent fiber content (p=0.002), but significantly decreased protein, fat, ash and other carbohydrate contents. ASF exhibited significantly higher water-binding capacity, but lower oil-binding and emulsifying capacities than CSF. Meat emulsions formulated with 10% fat and 2% sugarcane bagasse fiber had equivalent cooking loss and textural properties to control meat emulsion (20% fat without sugarcane bagasse fiber). The two types of sugarcane bagasse fiber had similar impacts on proximate composition, cooking yield and texture of meat emulsion at the same fat level, respectively (p>0.05). Our results confirm that sugarcane bagasse fiber could be a functional food ingredient for improving physicochemical and textural properties of meat emulsion, at 2% addition level. Further, the altered functional properties of alkaline-treated sugarcane bagasse fiber had no impacts on physicochemical and textural properties of meat emulsions, regardless of fat level at 5%, 10% and 20%.

Synthesis and spinning of A Novel Poly (acrylonitrile-co-silk fibroin peptide)

  • Zhongmin Chen;Masahiro Suzuki;Kim, Mutsumi ura;Kenji Hanabusa;Hirofusa Shirai
    • Proceedings of the Korean Fiber Society Conference
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    • 2003.10a
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    • pp.88-89
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    • 2003
  • A series of novel spinning acrylic polymer containing silk protein were synthesized by copolymerization of acrylonitrile (AN) and silk fibroin peptide (SFP) modified by acryloyl chloride (AC) with vinyl groups. The viscosity values of these copolymers showed that the copolymers have good spinnability, which are synthesized under the condition of putting a micro amount of metal ions into synthesizing solvent. The fiber based on the poly (AN-co-SFP) was prepared and characterized by SEM, FTIR measurement of its shell and core flakes, and moisture absorption. The fiber appeared a smooth surface and could be assumed to have excellent adhesive between SFP and PAN. Furthermore, these fibers showed a shell-core structure and excellent moisture absorption.

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Quality Characteristics of Sponge Cake Supplemented with Soy Fiber Flour (콩섬유 복합분을 첨가한 스펀지 케이크의 품질 특성)

  • Park, Ji-Young;Park, Young-Seo;Chang, Hak-Gil
    • Korean Journal of Food Science and Technology
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    • v.40 no.4
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    • pp.412-418
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    • 2008
  • The replacement of wheat flour with 4 to 24% soy fiber FIBRIM(R)1450 was evaluated to determine its effect on the properties of sponge cake. The volume and specific loaf volume decreased as the amount of soy fiber increased. In addition, the protein content and water holding capacity (WHC) were negatively correlated with the specific gravity of batter and the specific loaf volume of sponge cake, whereas there was no correlation between the mixograph characteristics and specific loaf volume of sponge cake in response to the addition of soy fiber. Furthermore, the symmetry and uniformity indices were not influenced by the addition of soy fiber. However, the L values of sponge cake crust and crumb decreased with increasing amounts of soy fiber, whereas a and b values were not affected. Additionally, the hardness, gumminess, and chewiness of the sponge cake all showed positive correlations with the protein content, sedimentation value, WHC and alkaline water retention capacity. Finally, the results of sensory evaluation indicated that external and internal colors, grain, texture, and flavor were not influenced by the addition of soy fiber, but that supplementation with over 20% soy fiber resulted in a slight decrease in taste and overall acceptability.

Development of Chicken Nuggets Added with Wheat Fiber (밀 식이섬유(Wheat Fiber)를 첨가한 치킨너겟 개발)

  • Kim, Hack-Youn;Kim, Gye-Woong
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.45 no.5
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    • pp.731-735
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    • 2016
  • This study aimed to investigate the effects of wheat fiber on the proximate composition, pH, color, texture profile analysis, and sensory properties of chicken nuggets. Chicken nugget samples were prepared by adding the following amounts of wheat fiber 0% (control), 1%, 2%, 3%, and 4%. The moisture and ash contents of samples increased with an increase in wheat fiber levels. Frying yield, redness, and yellowness of samples increased with increasing wheat fiber levels. On the other hand, protein and fat contents of sample decreased with an increase in wheat fiber levels. Furthermore, lightness decreased with an increase in wheat fiber levels. Hardness, cohesiveness, gumminess, and chewiness of samples increased with an increase in wheat fiber levels, and the sensory evaluation showed no significant differences between the control and samples containing wheat fiber. Therefore, usage of wheat fiber can improve quality characteristics of chicken nuggets.

Effects of Dietary Fiber Extracted from Citrus (Citrus unshiu S. Marcoy) Peel on Physicochemical Properties of a Chicken Emulsion in Model Systems

  • Choi, Yun-Sang;Kim, Hyun-Wook;Hwang, Ko-Eun;Song, Dong-Heon;Kim, Hack-Youn;Lee, Mi-Ai;Yoon, Yo-Han;Kim, Cheon-Jei
    • Food Science of Animal Resources
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    • v.32 no.5
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    • pp.618-626
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    • 2012
  • Citrus (Citrus unshiu S. Marcoy) industry by-products were used as a source of dietary fiber, and the effects of dietary fiber extracted from citrus peel on the proximate composition, pH, color, protein solubility, cooking loss, emulsion stability, and apparent viscosity of a chicken emulsion in model systems were examined. Chicken emulsions were prepared by adding citrus peel fiber at four different concentrations (1, 2, 3, and 4%). The apparent viscosity, redness, and yellowness of the chicken emulsion with citrus peel fiber were higher than those of the control (p<0.05). The lightness values of the chicken emulsions were lower in treatments containing citrus peel fiber (p<0.05). Furthermore, moisture content, cooking loss, and emulsion stability of the chicken emulsion with 1-2% citrus peel fiber were higher than those of other treatments (p<0.05). Fat content was lower in the treatments with added citrus peel fiber than that in the control (p<0.05). Chicken emulsions with added citrus peel fiber had improved quality characteristics, and the best results were obtained for the chicken emulsion with 2% added citrus peel fiber.

Effects of Pumpkin (Cucurbita maxima Duch.) Fiber on Physicochemical Properties and Sensory Characteristics of Chicken Frankfurters

  • Choi, Yun-Sang;Kim, Hyun-Wook;Hwang, Ko-Eun;Song, Dong-Heon;Park, Jae-Hyun;Lee, Soo-Yeon;Choi, Min-Sung;Choi, Ji-Hun;Kim, Cheon-Jei
    • Food Science of Animal Resources
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    • v.32 no.2
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    • pp.174-183
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    • 2012
  • The effects of dietary fiber extracted from pumpkin (pumpkin fiber) on physicochemical properties, textural properties, and sensory characteristics of chicken frankfurters were investigated. Chicken frankfurter was supplemented with pumpkin fiber at levels of 0, 1, 2, 3, and 4%. Adding different levels of pumpkin fiber affected the proximate composition of the chicken frankfurters (p<0.05), except for protein content. In addition of different levels of pumpkin fiber influenced the physicochemical and textural properties of the chicken frankfurters (p<0.05). The yellowness, viscosity, and hardness were higher in chicken frankfurters samples containing pumpkin fiber than those in the control (p<0.05). The results showed that chicken frankfurter samples with higher pumpkin fiber levels had lower lightness values (p<0.05), as well as less cooking loss, emulsion stability, and lower color scores (p<0.05) compared to those control without pumpkin fiber treatment. The chicken frankfurters with 2% and 3% pumpkin fiber had higher overall acceptability than that of the control (p<0.05). The results show that adding pumpkin fiber produced acceptable chicken frankfurters and improved their quality characteristics.