• Journal of the East Asian Society of Dietary Life
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• v.24 no.6
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• pp.819-826
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• 2014

Consumer's demand for higher dietary fiber and lower fat in processed foods are increasing. This study developed a low fat and high dietary fiber snack using egg whites and dry fermented radish powder obtained from Dongchimi fermentation. Quality characteristics, such as hardness, color, fat content and total dietary fiber, of the developed snack were conducted along with a hedonic test. As the amount of the fermented powder increased in the formulation, water content and snack hardness decreased. Up to 14.5% radish powder was added (or 9.54% dietary fiber; dry weight, w/w) to the formulation, and hedonic test found snack containing 4.8% (w/w) powder showed the highest scores for overall acceptability.

• Proceedings of the Korean Fiber Society Conference
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• 2000.04a
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• pp.125-128
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• 2000

Chemical cellulose from an ascidian tunic is isolated by extraction, digestion and bleaching steps. The content of $\alpha$-cellulose was above 98 wt%, and it's DPw was about 918. A new regenerated cellulose fiber from the chemical cellulose obtained in this study was made using NMMO/water(87/13 wt%) as a solvent by dry jet-wet spinning. The effects of spinning speed and cellulose content of spinning dope on the properties were investigated.

• Textile Coloration and Finishing
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• v.33 no.4
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• pp.258-268
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• 2021

This study conducted on the introduction of recycled cellulose fibers, which are widely used in the textile industry as eco-friendly biomass materials, into polypropylene resins, which are mainly used for interior and exterior materials such as door trims and console parts of automobiles. In general, cellulose fibers can affect mechanical properties and have a lightening effect when used as a reinforcing agent. However, since cellulose fibers have hydrophilic properties and have relatively low compatibility with industrial polymer resins, they are used in combination through fiber hydrophobic surface treatment. Therefore, through this study, the reforming reaction conditions optimized in terms of hydrophobicity and workability for cellulose fibers are studied. Furthermore, polypropylene containing surface-modified cellulose fibers was prepared to compare physical properties by fiber content and study optimized content.

• Proceedings of the Korean Society For Composite Materials Conference
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• 2005.11a
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• pp.125-128
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• 2005

The dispersion of carbon nanofiber (CNF) was carried out by solution blending, mechanical mixing, and sonication. CNFs at levels of 5-50% fiber weight content were mixed with polypropylene (PP) powder, and then were melt-mixed using a twin-screw extruder. For the further alignment of fibers, extruded rods were stacked uni-directionally in the mold cavity for the compression molding. For the evaluation of mechanical properties of nanocomposites, tension, in-plane shear, and flexural tests were conducted. CNF/PP composites clearly showed reinforcing effect in the longitudinal direction. The tensile modulus and strength have improved by 100% and 40%, respectively for 50 % fiber weight content, and the flexural modulus and strength have increased by 120% and 25%, respectively for the same fiber weight content. The shear modulus showed 65% increase, but the strength dropped sharply by 40%. However, the property enhancement was not significant due to the poor adhesion between fiber and matrix. In the transverse direction, the tensile, flexural, and shear strength decreased as more fibers were added.

• Korean Journal of Agricultural Science
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• v.35 no.1
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• pp.41-51
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• 2008

In the development of enteral foods for the patients with diarrhea, soybean hull, by-products of soybean processing, was used to prepare crude dietary fiber extracts (soybean hull fiber, SHF). Total dietary fiber content of SHF is 85% and their composition are 86.1% cellulose, 8.1% hemi-cellulose, and 4.7% lignin. The effects of SHF on the prevention of diarrhea were studied in animal. Spraque-Dawley (SD) rats were fed AIN93G diets containing 5% dietary fiber for 3days simultaneously inducing diarrhea with the phenolphthalein Mg citrate solution. On day 4, feces were collected at different time point. Dietary fibers used for the animal study were SHF, soybean cotyledon fiber (SCF), psyllium husk fiber (PHF), and chicory fiber (CF). ${\alpha}$-cellulose was used as a control. Body weight gain, calorie consumed and food efficiency ratio among the experimental groups were not different. However, water content in the feces of SHF group was significantly lower by 10%, compared with other groups at 24hrs. time point. This effect was even greater in the feces collected later than 24 hrs. time point. SHF seems to have a greater effects on slow the symptom of diarrhea. Based on the previous results, enteral food enriched with SHF were prepared and its effect was compared with other commercially available products from domestic or imported ones. Weight changes among experimental groups were not different, but the moisture content of feces consumed SHF enriched products were lower than that of other products. Approximately 10% decrease in water content was observed from feces collected at 24 hr time point. According to the sensory evaluation, overall acceptability of the enteral food enriched with SHF was 3.24 out of 5 indicating that taste of this product is acceptable.

• Journal of the Korean Recycled Construction Resources Institute
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• v.2 no.4
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• pp.345-353
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• 2014

This study was evaluated influence of fluidity properties according to basalt fiber and high volume fly ash in the mortar level, as part of a basic study for development of fiber reinforced concrete using basalt fiber and high volume fly ash. In the first step, it was evaluated that fluidity properties of mortar according to replacement ratio 6 level of fly ash(10, 20, 30, 40, 50 and 60mass%) and fluidity properties of mortar according to content 5 levels of SP(1.3, 1.5, 1.7, 1.9 and 2.1%) and content 5 levels of VA(0.2, 0.4, 0.6, 0.8 and 1.0%) for dispersion of the basalt fiber, in the second step, it was evaluated that fluidity properties of mortar using High-volume fly ash (50mass%) on 3 levels of basalt fiber length (6, 20 and 30mm). Results of assessment, if after a fiber mixed, it showed that viscosity agent is more effective to improve the fluidity and fiber dispersion than superplasticizer, high volume fly ash (50%) applying the mixing, due to three properties of fly ash, showed that the improved fiber dispersibility and flow improvement.

• Korean Journal of Food Science and Technology
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• v.24 no.2
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• pp.180-182
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• 1992

Three hull-less barleys and three covered barleys grown in Korea were pearled to give 0% and 60% yield, respectively. Whole barleys and pearled barleys were analyzed for total, insoluble, soluble dietary fiber and ${\beta}-glucan$ contents. Whole hull-less barleys contained average 17.1% total dietary fiber, and whole covered barleys contained average 23.9% total dietary fiber. Pearled hull-less barleys contained 9,2% total dietary fiber and 4.8% solule dietary fiber. Pearled covered barleys contained 11.9% total dietary fiber and 6.0% soluble dietary fiber. Whole barleys contained $3.2{\sim}3.9%$ (${\beta}-glucan$, and pearled barleys contained $3.5{\sim}5.4%$ (${\beta}-glucan$. Soluble dietary fiber and (${\beta}-glucan$ contents of barley were not affected by cooking, while insoluble dietary fiber content was increased by cooking.

• Composites Research
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• v.33 no.6
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• pp.390-394
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• 2020

The carbon fiber has been damaged via tow spreading process for carbon fiber spread tow. The fiber damage is caused by friction between equipment and fibers or between fibers and fibers in the process of spreading. As a result, mechanical properties are decreased due to differences in process via material and equipment condition. Therefore, minimizing fiber damage have to be considered in the process. In this study, the change in carbon fiber pneumatic spreading process was observed by according to the filament count, sizing content of carbon fiber and process variables in spreading equipment (fiber tension at the beginning, air temperature in spreading zone, vacuum pressure in spreading zone). Tensile strength was evaluated using samples prepared under optimal conditions for each of the carbon fiber varieties, and mechanical properties were reduced due to damage on the carbon fiber.

• Journal of Animal Science and Technology
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• v.63 no.1
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• pp.137-148
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• 2021

The effect of the addition of dietary fiber extracted from wheat, bamboo, and oat on the quality of fried pork loin batter was investigated. Quality evaluation included proximate composition, pH, color, viscosity, coating and frying yield, electronic nose, and sensory evaluation. Regarding proximate composition of fried batter and fried pork loin, the water content of the dietary fiber treatments was significantly higher than that of the control (p < 0.05), whereas fat content was significantly lower than that of the control (p < 0.05). The lightness of non-fried batter with dietary fiber treatments was significantly higher than that of the control (p < 0.05), whereas the yellowness was significantly lower than that of the control (p < 0.05). The lightness, redness, and yellowness of fried pork loin with dietary fiber treatment were significantly lower than those of the control (p < 0.05). The viscosity and coating and frying yield of dietary fiber treatments were significantly higher than those of the control (p < 0.05). The volatile compounds of dietary fiber treatments were decreased "tallowy" flavor and increased "buttery" and "milky" flavor. The principal components of bamboo and oat fiber treatments were clearly distinguishable from those of the control; however, similar principal components as those of the control were obtained with wheat fiber treatment. Regarding sensory evaluation, the color, texture, and overall acceptability of wheat and oat fiber treatments were significantly higher than those of the control (p < 0.05), and the flavor of the wheat fiber treatment was significantly higher than that of the control (p < 0.05). These results show that wheat and oat fibers are suitable for fried pork loin batter and improve its quality.

• Fashion & Textile Research Journal
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• v.14 no.3
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• pp.472-477
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• 2012

The conditions of wet spinning were considered in order to prepare the fine denier of acrylic fiber. Polyacrylonitrile copolymer was synthesized by the copolymerization of acrylonitrile (AN) and methyl acrylate (MA) initiated by an aqueous sulfite-chlorate redox system. Acrylic fiber was manufactured through wet-spinning in a dimethyl formamide (DMF) system. The conditions of wet-spinning were investigated by i-value, spinning speed, diameter of spinneret, draw ratio, water content of spinning dope and morphology of protofiber. The physical properties of fibers were investigated by Instron. In this experiment, the minimum i-value decreased with the decreasing spinneret diameter, an increased spinning speed, and an increased coagulation bath (CBC) concentration. The maximum draw ratio increased with an increased CBC. The optimum CBC and water content of the spinning dope were 60%-65% and 3.5%, respectively. The tenacity at the breaking point increased with a decreased fineness of fiber. The elongation at breaking point was almost the same value as a function of the fineness of fiber.