• Food Science of Animal Resources
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• v.18 no.3
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• pp.216-223
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• 1998

This study was conducted to investigate the effects of the tenderness for the vacuum chilled, the air-frozen or the rechilled Holstein beef loin. The vacuum packaged beef was stored at 1$^{\circ}C$ and the air-packaged beef was stored at -20$^{\circ}C$ for 60 days. The rechilled beef was restored for 3 days at 1$^{\circ}C$ by using the vacuum chilled or the air-frozen beef. Hardness and chewiness of the vacuum chilled beef were better than those of the air-frozen beef. Hardness and chewiness were improved significantly(p＜0.05) after the 40 days storage for the vacuum chilled beef, but there was no significant improvement for the air-frozen beef during the 60 days storage. By the rechilling process, tenderness and myofibrillar fragmentation index of the vacuum chilled and air-frozen beef improved. Especially those were improved significantly(p＜0.05) in the vacuum chilled beef after the 20 days storage, and in the air-frozen beef after the 40 and 60 days storage.

• Korean journal of food and cookery science
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• v.25 no.1
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• pp.1-7
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• 2009

The aim of this study was to determine the optimum amount of Job's tears flour to add to glutinous rice flour in the preparation of Dasik. As the Job's tears flour level in the formulation increased, the moisture contents of samples increased (9.70-10.97%), L- and b-values decreased, and the a-value increased. According to the mechanical evaluation results, hardness decreased with increasing amounts of Job's tears flour, cohesiveness was highest in the 60% Job's tears flour sample, springiness and adhesiveness were highest in the 40% sample, and gumminess and chewiness did not differ significantly according to the level of Job's tears flour. From the sensory evaluation results, the 30% sample received the highest color, nutty taste, roughness, softness, chewiness, and overall acceptability scores. In conclusion, based on its sensory and mechanical qualities, the optimal Dasik formulation consisted of 30% Job's tears flour added to glutinous rice flour.

• Journal of the Korean Society of Food Culture
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• v.18 no.4
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• pp.356-364
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• 2003

The purpose of this study was to evaluate quality characteristics of the bread added with chlorella growth factor(CGF). The bread was manufactured by adding 0.5%, 1.0%, 1.5% or 2.0% of CGF(w/w) to wheat flour. The bread volume was increased from 1,755mL to 1,840mL as CGF contents increased from 0% to 1.0%. The lightness(L values)and the redness(a values) decreased with increasing CGF contents, but the yellowness(b values) increased with increasing CGF contents. Textural characteristics of the bread were influenced by adding the CGF. The breads containing CGF showed a decrease in hardness, springiness, gumminess and chewiness. In sensory evaluation, sensory scores decreased with increasing CGF contents for color. On the other hand, the highest sensory scores for grain, flavor, taste, softness, chewiness, aftertaste and overall acceptability were obtained, when CGF content was 1.0%. In conclusion, the bread with 1.0% CGF was the best quality in textural and sensory evaluation.

• Korean journal of food and cookery science
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• v.16 no.3
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• pp.226-231
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• 2000

Injulmi, a kind of traditional Korean sticky rice cakes, was prepared with the mixed flours of waxy and black rices in different ratio(0% to 25% black rice flour), and their quality properties were studied. In the sensory evaluation, the best acceptance was shown in the samples with 15% black rice flour. The scores for hardness, coarseness. chewiness, and flavor were increased as the added amount of black rice flour increased. The moisture content of the samples ranged from 43 to 45%, and it was increased as the added amount of black rice flour increased. In color value, lightness(L value) was 27.43∼65.63. The redness(a value) was -2.01∼4.74, and the yellowness(b value) was -1.40∼4.59. The redness and blueness were increased by the increase of black rice flour. In the texture properties, the increase of added black rice flour increased the hardness, chewiness, and gumminess of Injulml, but decreased the adhesiveness. Based on the results, the optimal recipe for Injulmi added black rice flour was to make with 85% waxy rice flour ant 15% black rice flour.

• Korean journal of food and cookery science
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• v.16 no.3
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• pp.260-266
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• 2000

The objective of this study was to evaluate the quality characteristics of Dotoridduck (acorn rice cake) prepared by the addition of acorn jelly powder(0%, l0%, 20%, 30%, 40%). In the results of sensory evaluation for Dotoridduck, the L value decreased and a and b values increased as the addition of acorn jelly powder increased. The hardness and chewiness were evaluated better as the amount of acorn jelly powder decreased. The bitterness increased as the amount of acorn jelly powder increased. Dotoridduck with 10% and 20% acorn jelly powder showed the highest acceptance. In the mechanical evaluation, control samples with 0% acorn jelly powder showed higher scores in the hardness, cohesiveness, gumminess, and chewiness than the ones with acorn jel]y powder, however, the ones with 40% acorn jelly powder were the highest in the adhesiveness and springiness. The fracturability was higher in the samples with 10% acorn jelly powder.

• Journal of the East Asian Society of Dietary Life
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• v.12 no.1
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• pp.55-64
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• 2002

This study was carried out to investigate quality characteristics of Seolgiddeok containing 0, 1, 3, 5 and 7% of Lentinus edodes powder during storage. The water content of Seolgiddeok changed little with the length of storage and the amount of Lentinus edodes powder added. Hunter′s color L value of Seolgiddeok decreased and "a"and "b"value were increased significantly by increasing the amount of Lentinus edodes powder. The hardness, gumminess, adhesiveness, chewiness and cohesiveness of Seolgiddeok decreased, but springiness increased by increasing the amount of Lentinus edodes powder. Seolgiddeok added with 3% Lentinus erodes earned the highest scores in color, taste, softness, chewiness, moistness and overall preference. From the above results of sensory and texture analyses, an addition of 3% Lentinus edodes to Seolgiddeok showed the best result in quality.

• Journal of the Korean Home Economics Association
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• v.23 no.3
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• pp.63-73
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• 1985

This study was conducted to investigate the effects of fermentation time and the proportion of wheat flour to rice flour on Jeung-Pyun's texture. Textural characteristics were examined through sensory Evaluation and Instron Universal testing machine. The properties examined through sensory evaluation were grain, softness, sourness, chewiness and overall quality. Wigh Instron, hardness, cohesivenessm elasticity, gumminess and chewiness were measured. RESULTS : 1. Sensory evaluation data indicated that Jeung-Pyun containing 25% wheat flour and fermented 2 hrs were obtained higher scores than any other Jeug-Pyuns in the grain, softness and overall quality. 2. pHs of Jeung-pyundough and Jeung-Pyun containing 100% rice flour were lower than pHs of those with wheat flour added. 3. Volume of Jeung-Pyun increased as the proportion of wheat flour to rice flour and the length of fermentation time increased. 4. Instron measurement indicated that the hardness of Jeung-Pyun with 50% wheat flour added and 2hrs fermentation time was higher than of others.

• Journal of the Korean Society of Food Science and Nutrition
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• v.28 no.4
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• pp.845-849
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• 1999

We can make Samul Chol Pyon to add four powdered Korean medicines to Chol Pyon. The purpose of this study is to present the standard recipe of Samul Chol-Pyon for the taste of the moderns, taking the tests of physical charcateristics, sensory qualities. The white Chol Pyon and the group of 5% raw materials for Samul tang are comparatively good for color, odor, taste, softness, chewiness and overall quallity with other group of raw materials. To add Korean medicine browns the Samul Chol Pyon much deeper. The changes in textural properties of Chol pyon during storage at 20$\pm$5oC were measured using a rheometer for hardness, fractureability, adhesiveness, resilience, and cohesiveness. The hardness, fractureability and adhesiveness were increased with the additon of in Samul tang raw material powder. The cohesiveness and chewiness were increased by adding Samul tang powder in the course of time. The Chol Pyon prepared with 5% of Samul tang powder showed the superior sensory qualities as Samul Chol Pyon.

• Journal of the East Asian Society of Dietary Life
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• v.9 no.4
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• pp.452-460
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• 1999

This study was conducted in order to investigate the quality characteristics of Salku Pyun which was made by using mungbean, potato, sweet potato and corn starches. The pH of salku juice was 3.45 to 3.50 and the brix of that was 7.0%. The water content and water activity of salku pyun with potato starch was highest. The result of sensory evaluation showed that appearance, flavor, overall quality were highest in the Salku Pyun made with potato starch while texture, taste were highest in the Salku Pyun made with mungbean starch. Mechanical properties of salku pyun with mungbean starch was significantly higher in adhesiveness, hardness, chewiness. Texture of sensory evaluation were positively correlated with springiness, hardness, and chewiness of mechanical measurement. The factors which affect the overall quality on sensory evaluation were texture quality, taste quality, hardness, color and springiness.

• Journal of the Korean Society of Food Science and Nutrition
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• v.28 no.3
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• pp.547-553
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• 1999

Effects of oligosaccharides substituted for sucrose on the sponge cake quality were investigated. Fructooligosaccharide and isomaltooligosaccharide were used as oligosaccharides. Oligosaccharides decreased batter specific gravity, and increased cake specific volume and expansion ratio, showing that oligosaccharides had higher foaming ability and foam stability than sucrose. Oligosaccharides darkened the crust and crumb color of cakes. Addition of oligosaccharides made cakes darker, softer, more moist and more acceptable as perceived by panels. The acceptability was significantly correlated with crust and crumb color, softness, moistness and flavor(p<0.01). The textural characteristics including hardness, chewiness and gumminess of cakes were decreased by replacing sucrose with oligosaccharides. The hardness, gumminess and chewiness among sensory characteristics were negatively correlated with acceptability(p<0.05). Therefore, oligosaccharides should be a good alternative for sucrose in cake making because the sponge cake quality was greatly improved by partial repacement of sucrose with oligosaccharides.