• Journal of Animal Science and Technology
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• v.64 no.1
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• pp.143-154
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• 2022

This study was conducted to evaluate the relationship among market weight, slaughter age, yield grade, and primal cut yield in Hanwoo. A total of 403 Hanwoo (Korean native cattle) was assessed for carcass traits such as carcass cold weight, backfat thickness, ribeye area, dressing percentage, yield index, and marbling score. The production yield of the individual major primal cuts of Hanwoo beef was also measured. Carcass cold weight, ribeye area, and backfat thickness, which affect meat quality increased with increased market weight (p < 0.05). The production yield of the ten major primal cuts also increased with increased market weight (p < 0.05). In terms of slaughter age, carcass cold weight, ribeye area, and backfat thickness all increased from 25 months to 28-29 months, and the production yield of all prime cuts also increased with increasing slaughter age. According to the meat yield grade, carcass cold weight and backfat thickness increased from grade A to grade C, although the ribeye area was not affected. The combined findings of the study suggest that slaughtering Hanwoo at the weight of 651-700 kg and 701-750 and age of 28.23 and 29.83 months could be desirable to achieve the best quality and quantity grade of Hanwoo beef. However, the positive correlation of carcass cold weight and backfat thickness, and the negative correlation of the yield index according to primal cuts yield indicated that it is necessary to couple the slaughtering management of cattle with improved genetic and breeding method of Hanwoo to increase the production yield of the major prime cuts of Hanwoo beef.

• Korean journal of food and cookery science
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• v.16 no.6
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• pp.640-643
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• 2000

This study was carried out to investigate the effects of addition ratio of reddish-brownpigmented rice(Suwon 451) on the color difference, mechanical characteristics and gelatinization degree, sensory characteristics of Seolgid-deok. As the amount of reddish-brown pigmented rice was increased, redness was getting increased, lightness and yellowness was getting decreased. In hardness, adhesiveness, cohesiveness and chewiness, as the amount of pigmented rice was increased, was getting decreased and springiness was getting increased. As the amount of pigmented rice was increased in Seolgiddeok, gelatinization was getting increased. In sensory evaluation, quality characteristics of Seolgiddeok with 20% reddish-brown pigmented rice added was better in color, sweetness and overall quality than those of Seolgiddeok without reddish-brown pigmented rice.

• Korean Journal of Human Ecology
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• v.20 no.2
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• pp.467-473
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• 2011

The principal objective of this study was to evaluate the quality characteristics of jelly prepared with five different levels(0, 0.5, 1.0, 1.5, and 2.0%) of black garlic concentrate(BG1-BG4). We conducted the pH, sugar content, Hunter's color value, mechanical characteristics, and a sensory evaluation analysis of black garlic jelly. The more black garlic concentrate increased, the more the sugar content of the black garlic jelly increased(p<0.05). In terms of color, lightness(L) and yellowness(b) decreased as the black garlic concentrate increased, while redness(a) increased. With regard to the mechanical properties of the black garlic jelly samples, the higher the score of hardness, gumminess, and chewiness significantly increased(p<0.05). In color, flavor, texture and overall quality, the score of jelly with 1.0% black garlic concentrate(BG2) increased most of the all.

• Journal of the Korean Society of Food Culture
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• v.32 no.5
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• pp.446-452
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• 2017

This study was conducted to evaluate the quality characteristics and antioxidant activities of salad dressing prepared with acaiberry powder (0, 1, 3, and 5%). The pH and titratable acidity increased as the acaiberry powder increased. The sugar content showed no significant differences between samples. The viscosity was lowest in the controls and increased with increasing amounts of the acaiberry powder. The lightness and yellowness values decreased, while the redness values increased with increasing amounts of acaiberry powder. The total polyphenol content ranged from 10.26-45.19 mg GAE/100 g, increasing with increased acaiberry powder levels. The antioxidant activities measured via DPPH radical scavenging activity, reducing power and FRAP also increased with increasing acaiberry powder concentrations. Finally, a consumer acceptance test revealed that up to 3% acaiberry powder could be added to salad dressing to provide high antioxidant activity without sacrificing sensory quality.

• Journal of the Korean Society of Food Culture
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• v.30 no.5
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• pp.650-655
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• 2015

Bamboo sprout powder was added to rice cake in an effort to improve the quality and functional properties of dough. The contents of crude protein and carbohydrates increased as the amount of bamboo sprout powder increased, whereas moisture contents decreased. According to increasing contents of bamboo sprout powder, total amino acid contents significantly increased. Hunter's L value decreased as contents of bamboo sprout powder increased, whereas sucrose contents increased. Addition of bamboo sprout powder to rice cake increased dietary fiber contents. Sensory scores of rice cake containing 90 g of bamboo sprout powder were the highest of all rice cakes tested. According to the results, adding bamboo sprout powder could improve the quality and sensory characteristics of rice cake.

• Korean journal of food and cookery science
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• v.13 no.3
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• pp.299-303
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• 1997

The effects of partial replacement of flour with isolated soy protein (ISP) on sponge cake quality were investigated. The replacement did not cause any significant changes in physical characteristics of sponge cakes including specific gravity, specific volume and expansion ratio. As the level of ISP replacement increased, the sponge cakes were darker in color, harder, chewier and drier than control groups. The textural characteristics (hardness, cohesiveness, springiness, gumminess and chewiness) of the sponge cakes also increased as the level of flour replacement increased. Up to 15％ of the flour could be replaced by ISP without diminishing the sponge cake quality.

• Culinary science and hospitality research
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• v.23 no.3
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• pp.174-185
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• 2017

The purpose of this study was to investigate the quality characteristics of fish paste added with different amounts (0%, 0.5%, 1%, 1.5%, and 2%) of spirulina powder. Specifically, moisture content, pH value, color value, texture value, total polyphenol content, DPPH radical scavenging activity, and sensory evaluation were measured in the samples. The moisture content of the fish paste added (0.5%, 1%, 1.5%, and 2%) ranged from 68.60% to 69.03%, and the increased amounts of spirulina powder in the fish paste tended to decrease the pH value. For the Hunter color values, the L, a values of surface and inside of the fish paste decreased with increased amounts of spirulina powder. The b values of the fish paste increased with increased amounts of spirulina powder. In the texture meter test, the hardness, gumminess, and adhesiveness decreased with the increased amounts of spirulina powder, and chewiness of group adding spirulina powder was measured lower than control. Springiness of the fish paste did not appear statistically significantly different among the samples according to the increased amounts of spirulina powder. Total polyphenol content of fish paste added with spirulina powder increased with increased amounts of spirulina powder, and DPPH radical scavenging was heightened according to increased amounts of spirulina powder. In sensory evaluation, the addition of 1% spirulina powder had the best score in odor, texture, taste, and overall preference. These results suggest that spirulina powder can be applied to fish paste to increase quality, preference, and functionality.

• Korean Journal of Poultry Science
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• v.26 no.2
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• pp.97-108
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• 1999

The consumer demands for quality of meats has become diverse in recent years. The present paper describes mainly the technology to improve the broiler meat quality with special reference to reducing fat contents in edible meats which is the heart of the quality constraints. Abdominal fat deposition in broilers was reduced by feeding of medium-chain triglycerides(MCT), suggesting MCT feeding is useful to produce broiler meat with low fat content. A phase feeding system to aim at improving meat quality that is mainly comprised with partial replacement of dietary protein into phase during 4∼6 weeks increased edible meat yields and reduced abdominal fat deposition and fat contents in breast and thigh meats. Whiteness of fat tissue was intensified by feeding beef tallow or lard in place of yellow grease. Feeding Phaffia yeast containing astaxanthin increased redness of breast and thigh meats and improved visual appearance of meats which may be preferential for consumers. Feeding fish oil reduced abdominal fat deposition and increased EPA and DHA contents of fat tissues. These procedures could be used for manipulation of meat quality to meet consumer demands.

• Journal of the East Asian Society of Dietary Life
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• v.23 no.5
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• pp.605-612
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• 2013

The purpose of this study was to investigate the quality characteristics of maejakgwa prepared with Ligularia fischeri powder (0, 1, 3, 5, 7%) as a substitute for flour. The pH of maejakgwa dough significantly decreased in response to the addition of all levels of Ligularia fischeri powder. Spread factor values and water contents increased significantly with increasing amounts of Ligularia fischeri powder. In addition, the Hunter color L, a and b values decreased significantly with increasing amounts of Ligularia fischeri powder. Furthermore, hardness was increased significantly as the level of Ligularia fischeri powder increased. DPPH free radical scavenging activity increased significantly as the content of Ligularia fischeri powder increased (p<0.05). Finally, the results of the sensory properties indicated that maejakgwa containing 3% Ligularia fischeri powder had the highest scores. These results suggest that Ligularia fischeri powder can be applied to maejakgwa in order to achieve high quality and functionality.

• Korean journal of food and cookery science
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• v.15 no.5
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• pp.507-511
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• 1999

This study was carried out to investigate the effects of addition ratio of pigmented rice(Suwon 415) on the color difference, mechanical characteristics and gelatinization degree, sensory characteristics of Seolgiddeok. As the amount of pigmented rice was increased, the redness was increased, however, the lightness and yellowness were decreased. The hardness, adhesiveness, cohesiveness and chewiness of, Seolgiddeok were decreased with the increase of pigmented rice content, however, the springiness was increased. As the amount of pigmented rice was increased in Seolgiddeok, gelatinization was getting increased. In sensory evaluation, quality characteristics of Seolgiddeok with pigmented rice was better than those of Seolgiddeok without pigmented rice. Especially, Seolgiddeok with 20% pigmented rice added had the best score in color, sweetness, flavor and overall quality.