• The Korean Journal of Food And Nutrition
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• v.22 no.3
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• pp.402-408
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• 2009

The study assessed the quality characteristics of Sulgiddeok with self-made and commercially-available rice flours during a 1-day storage at ambient temperature($20\sim22^{\circ}C$). The nutritional components, color value, physical tests, internal structure as revealed by scanning electron microscopy SEM, and sensory evaluation of Sulgiddeok were determined. Sulgiddeok prepared with self-made rice flour and two commercial rice flour were designated as sample A, B, and C, respectively. Moisture content, crude protein, crude lipid, and pH did not differ significantly among the preparations. Sweetness was highest in sample B(p<0.01) and crude ash was highest in sample A(p<0.001). L color, a value, and b value was highest in sample B, C, and C, respectively. Texture property analysis showed that hardness, gumminess, and chewiness tended to decrease during the 1-day storage, while adhesiveness, springiness, and cohesiveness tended to increase. Sensory characteristics of color, flavor, chewiness, gumminess, externals, and overall quality of sample A were superior to samples B and C. However, softness was highest in sample B. The internal structure of Sulgiddeok was preserved in sample A. It is concluded that rice flour B can make Sulgiddeok comparable to that prepared using self-made rice flour.

• The Korean Journal of Food And Nutrition
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• v.23 no.1
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• pp.76-83
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• 2010

This study was conducted to analyze sensory characteristics and consumer acceptance with cookies made using various levels(0, 2, 4, 6 and 8% w/w) of Chrysanthemum indicum L. powder. Ten panels assessed sensory characteristics using a 15-point hedonic scale and forty-five consumers evaluated their acceptance based on a 7-point hedonic scale and best-worst scaling. The descriptive analyses reveled that cookie flavor did not differ significantly between the 2% added sample and the control. Cookie color and after taste increased significantly, while hardness, roasted taste, and sweetness taste decreased significantly according to increasing Chrysanthemum indicum L. powder concentration. In addition, the results of consumer acceptance showed that the overall acceptability, appearance, color, flavor, and taste decreased significantly in response to increasing Chrysanthemum indicum L. powder concentration. However, color, flavor, taste and overall acceptance with cookies did not differ significantly differ between the 2% and 4% sample. Additionally, among the cookies made with Chrysanthemum indicum L. powder, the 2% sample received the highest scores. In conclusion, the sensory optimal ratio of Chrysanthemum indicum L. powder was 2% based on the descriptive analysis of sensory characteristics and the consumer-acceptance testing.

• The Korean Journal of Community Living Science
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• v.20 no.2
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• pp.239-246
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• 2009

The principal object of this study was to assess the effects of garlic powder(2 % and 4 %) on the sponge cake made with medium and cake flour. After making sponge cakes with garlic powder, water activity, softness, color of crumb, and sensory test were tested. Water activity(Aw) of the sponge cakes with different quantity of garlic powder were increased during 7 days storage. These meant that garlic powder had absorption effect. The Max G and springiness of the sponge cakes with garlic powder were all lower than that of the control. With regard to the color of the sponge cakes, the L values were reduced, but the a and b values were increased with the increment of percent of garlic powder. The micrographs of the sponge cakes with garlic powder evidenced slightly lower porosity than the control. And, the results of sensory test showed that the increment of the addition of garlic powder had low scores. But we know the possibility to make the sponge cakes using garlic powder. And the sponge cakes with medium flour using 2% of garlic powder had better evaluation than others using garlic powder.

• The Korean Journal of Food And Nutrition
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• v.27 no.3
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• pp.427-434
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• 2014

This study investigated the quality characteristics of cookies containing mugwort powder, which is well known for its various functions and biological activity. Cookie samples were made by adding the mugwort powder at different levels of 0%, 1%, 3% and 5%. In this study, moisture, pH, color, spread factor, hardness, antioxidant activity and sensory evaluation of cookies were examined. The pH and moisture were increased when increasing levels of mugwort powder were used. The L, a and b color values were significantly (p<0.001) decreased when increasing levels of mugwort powder were used. The spread factor of the cookies was significantly (p<0.01) decreased when increasing levels of mugwort powder were used.. The hardness and DPPH radical scavenging activity of cookies were significantly (p<0.001) increased when increasing levels of mugwort powder were used. Cookies containing 3% of mugwort powder showed the highest taste and texture scores. The scores for Flavor and color decreased when more mugwort powder was added.

• Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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• 2003.10a
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• pp.167.1-167
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• 2003

To maintain high quality and to extend the shelf life of intact and minimally processed apple cubes, the effect of heat shock on the texture and color of apple cubes (Fuji) was evaluated in this study. After peeled and cored, the apples were cut into cubes of 1.5 cm. The heat shock was immersion in heated water from 25$^{\circ}C$ to 95$^{\circ}C$ in 10$^{\circ}C$ increments for 2 min and cooling to storage temperature as soon as possible after heat treatment. The effect of heat treatment in terms of color and texture measurements with respect to time was investigated, respectively during 7 days storage at in LDPE film bags without sealing at 4$^{\circ}C$, and 95% relative humidity air. Results suggest that heat shock (55$^{\circ}C$, 2 min) may have effectively delayed browning, and there were significant changes in color of apple cube when the temperature of heat shock is above 75$^{\circ}C$. And hardness, stiffness and firmness, which were used to describe texture, behaved similarly in the textural qualities. It was shown that the texture of the apple cubes was decreased with temperature increase. The value of them were most decreased to 70% of the initial ones after treated with 85$^{\circ}C$ and 95$^{\circ}C$ on the lust day.

• Journal of the East Asian Society of Dietary Life
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• v.20 no.6
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• pp.888-895
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• 2010

Riceyeotgangjung (RYG) with added spirulina was prepared with citron juice for masking of odor. Oil temperature for puffing was found to be $220^{\circ}C$ for frying dry rice based upon the results of expansion rate and color. RYGs with added spirulina (1, 2, and 3%) were prepared under the above conditions, and their physicochemical and sensory properties were examined under storage at $60^{\circ}C$ for 15 days. Moisture content of RYG decreased proportionally with the spirulina content and storage time. The hardness levels of the freshly made RYGs with spirulina were higher than that of control. During storage, the hardness of the control gradually increased, but those of the RYGs with spirulina gradually decreased, although no significant differences existed between the spirulina containing RYGs. Lightness and redness values in the Hunter color system decreased according to the spirulina content and storage time. Yellowness value also increased with the spirulina content and storage time. Phycocyanin and total phenolic content increased with spirulina content, but decreased with the storage period. Sensory evaluation results showed that RYG with 2% added spirulina received the highest scores for color, taste, overall acceptability, and intention of purchase. As a result, the optimal addition amount of spirulina to RYG is recommended to be 2%.

• The Korean Journal of Food And Nutrition
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• v.12 no.1
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• pp.85-90
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• 1999

The characcteristics of anthocyanin pigments from crab apple (Malus prunifolia Wild. Borkh. "red fruit") by ethanol extract were investigated at various condition of light temperature sugar, organic acid me-tal ion and pH. The pigments were stable(over the 60%) on the light irradiation throughout 20 days sto-rage period at room temperature and in the pesenc of Al-foil red blue green and yellow cover were rage period at room temperature and in the pesence of Al-foil red blue green and yellow cover were very stable. The pigments also showed high thermal stbility(over the 67% at 115$^{\circ}C$ 10min) at pH2.5 respectively. The pigments with added organic acid greatly increased thickness of red color. The pig-ments with added metal ions at pH 2.5 such as Na+ K+, Mg2+ Ca2+ and Mn2+ were stable throughout 20 days storage period at $25^{\circ}C$. But Cu2+ addition showed the rapidly degradation of the pigments and Al3+ addition induced the color conversion from red to redish violet. The thickness of the red color of anthocyanin pigments increased increased as the pH decreased. These results indicated that crab apple antho-cyanin pigments might be potental source of natural food colorant. colorant.

• Korean journal of food and cookery science
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• v.25 no.4
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• pp.421-426
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• 2009

The objective of this study was to evaluate the antioxidant and physiological The objective of this study was to evaluate the antioxidant and physiological activities of organic and inorganic coffee based on flavonoid composition. Organic and inorganic coffee varieties were prepared with Brazil arabica bean and Columbia arabica bean, respectively. Color values (Lightness, redness, and yellowness), mineral contents, total phenol content, 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, individual flavonoids, and sensory characteristics were then measured in the espresso of each coffee bean. The pH, Brix, and color difference between organic coffee and inorgainc coffee did not correlate with the harvest method. Coffee varieties were more influential on physiological properties, and were markedly more influential than the mineral content. Total phenolics had a higher correlation with DPPH radical scavenging activity ($r^2$=0.832). Depending on the harvesting method, significant differences (p<0.05) were shown in aroma, color, and overall acceptability in sensory evaluation.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.55 no.4
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• pp.425-430
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• 2022

This study was designed to verify the shelf-life of a freeze dried-block type of convenience food for rockfish Sebastes schlegeli seaweed soup product stored at different storing temperatures (25, 35, and 45℃) for 5 months. The polyunsaturated:saturated fatty acid ratio of the product stored at 25℃ was higher than that of products stored at 35℃ and 45℃ for 5 months. The colorimetric assessment indicated a noticeable decrease in the brightness of product color after 5months of storage at 35℃ and 45℃. Increased storage temperature and time negatively affected the product color. The products stored at 35℃ and/or 45℃ for more than 3 months tended to be more yellowish-red in color than those stored at 25℃ for shorter periods. No disease-causing microorganisms, including Escherichia coli and Staphylococcus aureus, posing health hazards to the human, were detected on food safety evaluation, regardless of storage conditions. Based on food visual shelf life simulator the shelf life of the rockfish seaweed soup was estimated approximately 22 months, considering the data from yellowness the safety factor of 0.7.

• Food Science of Animal Resources
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• v.34 no.3
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• pp.378-386
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• 2014

This study was conducted to determine the effects of red and green glasswort on the physicochemical and textural properties of reduced-salt cooked sausages. The control was formulated with 1.5% NaCl; then, three reduced-salt treatments were prepared, with 0.75% NaCl (RS), 0.75% NaCl+1.0% red glasswort (RSR) and 0.75% NaCl+1.0% green glasswort (RSG), respectively. The addition of glasswort within the added amount of 1% had no influence on the pH value of the reduced-salt cooked sausages, regardless of the glasswort type. In terms of color, RSG treatment conveyed a higher hue angle value than the RSR treatment (p<0.05). Increases in the protein solubility (total and myofibrillar proteins) and apparent viscosity of reduced-salt meat batter that were due to the addition of glasswort were observed; however, there were no differences according to the type of glasswort (p>0.05). Furthermore, the addition of glasswort, regardless of its type, resulted in decreased cooking loss, and increased emulsion stability. As a result, reduced-salt cooked sausages formulated with either red or green glasswort demonstrated similar textural properties to those of the control. In conclusion, the type of glasswort within an added amount of 1% had no influence on the physicochemical and textural properties of reduced-salt cooked sausages, except for the color characteristics. In terms of color alteration by the addition of glasswort, the red glasswort, which in comparison with the green glasswort could minimize the color changes of reduced-salt cooked sausages, might be an effective source for manufacturing meat products.