• Journal of the East Asian Society of Dietary Life
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• v.21 no.1
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• pp.31-37
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• 2011

This study was conducted to investigate the quality characteristics of bread prepared with spirulina powder (0, 0.4, 0.8, and 1.2%). The volume and specific volume of bread decreased with increasing spirulina powder content. The pH of the bread with 1.2% spirulina powder was the highest. Content of phycocyanin increased with addition of spirulina powder. For color values, increasing spirulina powder content resulted in decreased lightness, redness, and yellowness in the crust. Amylogram showed that spirulina addition increased initial gelatinization temperature, decreased breakdown, and lowered the setback and consistency, which prevented retrogradation. Moreover, the hardness of spirulina bread decreased as spirulina addition increased. Further, springiness, cohesiveness, gumminess, chewiness. and resilience of bread with 0.8% spirulina powder were the lowest. Sensory results showed that the scores of overall preference and buying intention in the bread with 0.8% spirulina were the highest among the control and other groups.

• Korean journal of food and cookery science
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• v.26 no.3
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• pp.290-299
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• 2010

The purpose of this study was to investigate the quality characteristics and acceptability of curried rice containing cheonggukjang powder for the using in a high school foodservice menu. The viscosity of the curry sauce with cheonggukjang powder was not significantly different between the control and 15% sample group. As the level of cheonggukjang powder was increased, the Hunter's L value increased, whereas the a value decreased. In the results of the acceptance test, the 15% group was not significantly different from the control group. Therefore, the 15% group was selected based on the acceptance test for use by the school foodservice industry. There was no significant difference between boys and girls (p<0.01) in the acceptance test of curried rice with cheonggukjang powder in terms of flavor, color, aroma, density of sauce, overall acceptability. In regards to the reason why boys and girls did not consume the curried rice, 'because of unfavorable taste' (51.0%), ranked highest followed by 'because of other' (34.2%). In conclusion, there was a high food acceptance food when cheonggukjang powder was added to curried rice. Also, it is necessary to increase the preference and consumption of cheonggukjang foods and through the development of proper recipes that contain cheonggukjang and through combination with other food ingredients.

• Korean journal of food and cookery science
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• v.28 no.4
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• pp.431-441
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• 2012

The purpose of this study was to determine the optimal mixing conditions, storage, and irradiation characteristics by two different amounts of cabbage powder and water in bread prepared with cabbage powder. A significant increase or decrease in dough pH (p<0.01), sweetness (p<0.05), water content (p<0.001), L-value (p<0.01), a-value (p<0.001), b-value (p<0.001), hardness (p<0.05), springiness, and chewiness (p<0.05) was observed. Sensory measurements showed a significant improvement in appearance, flavor, color, taste (p<0.05), texture, moisture (p<0.01), and overall quality (p<0.05). As a result, the optimum formulation obtained by numerical and graphical methods was 37.04 g cabbage powder and 385.3 g water. The optimized and control breads were irradiated and their DPPH radical scavenging activities and total plate counts were evaluated over 6 days. The result showed the antioxidant and antibiotic action of the bread with cabbage powder.

• Journal of Dairy Science and Biotechnology
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• v.37 no.2
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• pp.108-114
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• 2019

Aronia melanocarpa (black chokeberry) powder containing various bioactive compounds is widely used in the food industry. We examined the sensory attributes (taste, color, flavor, texture, and overall acceptability) of market milk, yogurt, and Kefir containing different concentrations of Aronia melanocarpa powder. In market milk, the scores of all categories except color were the same or lower in market milk containing 0.5%, 1.0%, 1.5%, or 2% Aronia melanocarpa powder than the control group (0%). No statistical difference in color and flavor was observed between Kefir and yogurt. However, there was a statistical difference between the control and treated groups in taste, texture and, overall acceptability (p<0.05). As the content of Aronia melanocarpa powder increased, color, flavor, taste, and overall acceptability scores generally decreased. Yogurt and Kefir, with the addition of 1% Aronia melanocarpa powder, displayed the highest scores.

• The Korean Journal of Food And Nutrition
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• v.31 no.6
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• pp.919-925
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• 2018

The objective of this study was to determine the characteristics of noodle dough made with biji powder (2, 4, 6 and 8%). Increase in the amount of biji powder significantly increases the water-binding capacity and decreases lightness (L) (p<0.05). The changes of redness (a), yellowness (b) and size of pore were insignificant. In the case of raw noodle, hardness, springiness, gumminess and chewiness of raw noodle significantly increased with increasing concentrations of the biji powder (p<0.05). Hardness of cooked noodle increased according with increase in concentration of biji (p<0.05). Springiness was increased up to 4% of biji concentration and slightly decreased at higher concentrations (p<0.05). Adhesiveness and cohesiveness of cooked noodle decreased according with increase in concentration of biji (p<0.05). The was no significant changes in the gumminess and chewiness. Taken together, addition of 4.0% biji powder to noodle dough may improve the preference of noodles.

• Preventive Nutrition and Food Science
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• v.18 no.4
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• pp.249-255
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• 2013

Yam (Dioscorea) has long been used as foods and folk medicine with the approved positive effects for health promotion. Although consumption of yam products is increasing for health promotion, reports for the metal contamination in commercial yam powder products to protect the consumers are lacking. In this study, we aimed to assess whether the commercial yam powder products were heavy metal contaminated or not using the yam products from six commercial products from various places in South Korea. The contents of heavy metals (Cd, Cr, As, Pb, Ni, and Sn) in yam powder products were measured and compared to national and international food standard levels. Also, the metal contamination was monitored during the food manufacturing steps. The study results showed that the contents of heavy metals (Cd, Cr, As, and Pb) in yam powder products are similar to those in national 'roots and tubers' as well as in various crops. In comparison to three international standard levels (EU, Codex and Korea), Cd content in yam powder products was lower but Pb content was 5 times higher. Also, Pb, Ni, and Sn may have the potential to be contaminated during food manufacturing steps. In conclusion, the level of heavy metals (Cd, Cr, As, Ni, and Sn) except Pb is considered relatively safe on comparison to national and international food standard levels.

• Korean journal of food and cookery science
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• v.26 no.2
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• pp.188-197
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• 2010

In this study, the quality characteristics and storage properties of gat kimchi added with oyster shell powder and Salicornia herbacea powder were investigated during a storage time of 80 days at $5^{\circ}C$. After storage for 80 days, the average calcium contents were significantly higher in the kimchi containing the oyster shell powder and Salicornia herbacea powder than the control. In addition, the average hardness value was significantly higher in the OS4 group(oyster shell powder at 4% and Salicornia herbacea powder at 2%) than the control group, as well as the OS10 group(oyster shell powder at 10% and Salicornia herbacea powder at 2%) during storage for 80 days. The hunter b value of the OS4 group was significantly lower than the control group. During fermentation, gat kimchi containing the oyster shell powder and Salicornia herbacea powder had a higher pH and a lower acidity value than the control group. In terms of sensory evaluation, there were no significant differences between the control and calcium-added kimchi during fermentation. After 40 days of storage, the OS4 group showed a lower total viable count, as well as lower lactic acid bacteria, yeast and E. coli, as compared with the control and OS10 groups. Based on the microbial load, the gat kimchi containing the oyster shell powder showed limitations in terms of shelf life.

• Korean Journal of Food Science and Technology
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• v.20 no.5
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• pp.637-643
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• 1988

The useful life of frying oil was increased by treating the frying oil with a composited powder comprising water, citric acid and porous rhyolite carrier. The color darkening and foaming tendency of the oil during frying operation was apparently retarded. Increase rates of polar lipid components, dielectric constant and formation of the conjugated dienes and trienes of the used frying oil were reduced to two thirds of the oil without treatment during 84 hr frying operation. Iodine value and polyenoic index was also much less decreased by treatment. The treatment, however, have no significant effect to inhibit the decrease of smoke point and the increase of viscosity.

• The Korean Journal of Food And Nutrition
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• v.26 no.3
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• pp.421-427
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• 2013

The results of testing general components, physical property and physical function after having made steamed rice cake by adding eggplant, which caters to consumers' tastes are as follows. It showed that when eggplant powder content increased, the moisture content of steamed rice cake with eggplant was decreased. It also showed that the lightness value (L) of steamed rice cake with eggplant powder was the highest as 82.75 in the control group. When eggplant powder content increased, the redness (a) and yellowness (b) were increased. From the results of having measured the antioxidant potential over the steamed rice cake with freezing-drying eggplant powder by DPPH radical elimination, we figured out that it was the lowest as 48.30% in the control group. As more eggplant powder was added, its elimination increased accordingly. As per hardness of steamed rice cake with eggplant, the added group with 7% was revealed as the highest at 0.757. It showed that adhesiveness was the lowest as 30.233 in the control group, and springiness and cohesiveness were on the rise as freezing-drying eggplant powder was increased. Furthermore, softness and chewiness were shown to be high in the added group with eggplant powder of 3, 5%. The evaluation over the overall preference was the highest in 5% added group. Judging from this, adding 3~5% eggplant powder against non-glutinous rice powder is considered an optimal quantity in making steamed rice cake with eggplant.

• The Korean Journal of Food And Nutrition
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• v.30 no.2
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• pp.282-289
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• 2017

This study was conducted to investigate the noodle-making characteristics of a noodle dough with konjac powder added. The water-binding capacity was significantly increased by increasing amounts of the konjac powder. When the weight and volume of the noodles were measured after cooking, there was no difference between the control and konjac powder groups. Turbidity was significantly reduced in a concentration-dependent manner. Chromaticity, in the case of raw noodle lightness (L), decreased significantly, while redness (a) and yellowness (b) significantly increased. Cooked noodles also showed the same pattern of results, however, as a whole, the results were lower when compared to wet noodles. The texture characteristics of hardness and chewiness significantly increased by increasing concentrations of the konjac powder. Cohesiveness was determined to not be significantly different by observing the surface of the noodle with a scanning electron microscope. In a sensory evaluation of the cooked noodle, no significant differences in gloss, taste, hardness, springiness or overall acceptability were observed between the control and konjac powder groups. This study indicates the that addition of 1.5% konjac powder to noodle dough may improve the functionality and preference of noodles.