• The Korean Journal of Food And Nutrition
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• v.25 no.1
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• pp.77-82
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• 2012

This study was carried out to optimize the production of immature green cherry tomato pickles and to produce green cherry tomato pickles of good sensory quality. The composition of immature green cherry tomato pickles was optimized using a central composition design with 3 variables and 3 levels. The overall acceptability score, based on sensory evaluation, was best, when the immature green cherry tomato pickles contained 231 g of vinegar, 52.6 g of salt, 168.3 g of sugar, 204 g of tomatoes, and 231 $m{\ell}$ of water. The statically predicted optimal formulation of immature green cherry tomato pickles on overall acceptability value was 33.54%(w/w) of vinegar, 7.64%(w/w) of salt, 25.28%(w/w) of sucrose, 33.54%(w/w) of water. The optimal conditions for producing immature green cherry tomato pickles should consider the factors of time and temperature of storage.

• Korean journal of food and cookery science
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• v.17 no.3
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• pp.229-236
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• 2001

This study was conducted in order to set the shelf life of Rice Yoogwa, Sesame Yoogwa and Yackwa to marketed in department store. It was investigated acid value, peroxide value, microbiological test and sensory evaluation for 50 days. Acid value of Rice Yoogwa, Sesame Yoogwa and Yackwa were not significantly different during storage period. Peroxide values of Rice Yoogwa and Yackwa were significantly increased after 30 days of storage but there was no different in Sesame Yoogwa. Fungus were appeared Sesame Yoogwa of A company, Rice Yoogwa and Yackwa of B company after 40 days of storage. In sensory evaluation, odor, taste, texture and overall acceptability after 40 days were significantly lower than 10 days of storage and rancid odor was gradually increased with preservation period in all materials. Correlation of acid value and peroxide value were positive throughout whole preservation period and rancid odor was increased. Odor, taste, texture and overall acceptability of Yoogwa and Yackwa were negative correlation with preservation period. In view of the above results, it came to the conclusion that shelf life of Yoogwa and Yackwa was 40 days.

• Korean journal of food and cookery science
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• v.12 no.3
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• pp.280-290
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• 1996

The suwey on the consumption pattern of Korean traditional soy sauce and commercial soy sauce was performed. 55.8 percentage of surveyed house makes Korean traditional soy sauce domestically, But its frequency in actual use is lower than commercial soy sauce. The use of Korean traditional soy sauce and commercial soy sauce was different depending on the kinds of food. Korean traditional soy sauce is mainly used for kinds of soup, and commercial soy sauce is predominantly used for hard-boiled foods and Chapchae. Korean traditional soy sauce is known as our typical fermented food and has special flavor. But its main factors of special flavor were not well established yet. So the authors have investigated the main components of Korean traditional soy sauce for its typical taste. Five samples o$.$ere selected from'Kyung-ln'area. The sensory charac teristics of Korean traditional soy sauce itself were very different with that of cooked food added with Korean traditional soy sauce. The hard-boiled mackerel cooked with commercial soy sauce was prefered than Korean traditional soy sauce. And soups and seasoned vegetables cooked with Korean traditional soy sauce were profered. By stepwiEe regression analysis and correlation analysis, sensory overall acceptability mainly depends on specific gravity, salt content and amino nitrogen content (R'=0.94). And total nitrogen content was highly coirelated with overall acceptability (r=0.91).

• Korean journal of food and cookery science
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• v.25 no.3
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• pp.275-282
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• 2009

This study investigated the quality characteristics of Pongnip Injeulmi samples according to different mulberry leaf powder(MLP) contents. The moisture levels of the samples ranged from 47.43 to 49.16%, with the 0% MLP sample presenting the highest moisture level. The amounts of crude protein, crude fat, and crude ash in samples were in ranges of 3.82${\sim}$5.01%, 0.05${\sim}$0.2%, and 0.65${\sim}$1.62%, respectively, and the values increased with increasing MLP content. Color L and b values decreased, while the a-value increased, with increasing MLP content. The 0% sample showed the highest gelatinization temperature of 63.4$^{\circ}$C, and the viscosity decreased with increasing MLP content. Texture and hardness also decreased with increasing MLP content, however, over 3 days storage, they increased in all samples. Finally, in the sensory tests, the 6% MLP sample received the highest scores for color, flavor, sweetness, texture and overall acceptability.

• Culinary science and hospitality research
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• v.16 no.3
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• pp.278-285
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• 2010

The purpose of this study is to analyze the sensory and mechanical characteristics, moisture content, color and texture of soybean dasik prepared by additions of bamboo leaf powder. The moisture content of the samples ranged from 24.39 to 26.29%. The L values, a values and b values were decreased with increasing the bamboo leaf powder. In the mechanical evaluation, hardness, gumminess and chewiness increased with increasing amounts of bamboo leaf powder while adhesiveness decreased with increasing amounts of bamboo leaf powder. Finally, in the sensory test, the 6% bamboo leaf powder sample received the highest scores for taste, flavor and overall acceptability.

• Korean journal of food and cookery science
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• v.31 no.3
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• pp.233-240
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• 2015

We investigated the physicochemical and antioxidant activity characteristics of tomato porridge with different ratios (0%, 2%, 4%, 6%, and 8%) of tomato powder in order to determine its potential health benefits. Tomato porridge samples were measured to obtain 1,1-diphenyl-2-picryl hydrazyl (DPPH) radical scavenging activity. The DPPH radical scavenging activity increased with the addition of tomato powder. The moisture contents of samples ranged from 81% to 78%. The L-value decreased, while a- and b-values increased, as the amount of tomato powder in the porridge increased. Also, the pH of samples decreased with increasing quantity of tomato powder. Based on sensory evaluations, the tomato powder intensified color, flavor, taste, appearance, viscosity and overall acceptability of the porridge. The sample that comprised 6% tomato powder had the highest color, flavor, taste, appearance and overall acceptability scores. Consequently, this research found that incorporating this percentage of tomato powder into the rice flour was the best formula for tomato porridge.

• Korean journal of food and cookery science
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• v.24 no.4
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• pp.412-418
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• 2008

In this study, Sulgidduk samples were prepared with substitutions of 1, 2, 3, and 4% tomato powder, along with a control, and were then analyzed for quality characteristics such as moisture content, water activity, color, textural characteristics, and sensory qualities, in order to determine the optimal ratio of tomato powder in the formulation. According to the results, moisture content and water activity were not significantly different among the Sulgidduk samples. In terms of color, as the level of tomato powder content increased, lightness decreased, while the a-value (+redness/-greenness), and yellowness increased. For the textural characteristics, the samples showed significant differences for hardness, adhesiveness, and gumminess, while fracturability was not significantly different. In addition, the samples containing tomato powder presented significantly higher springiness, cohesiveness(except the 1% substitution level), chewiness, and resilience than the control group. In the sensory evaluation, the control group had significantly higher scores for color and flavor as compared to the tomato powder samples. Furthermore, flavor and overall acceptability decreased, while tomato flavor, sourness, and off-flavor increased with increasing tomato powder content. Sweetness and after-taste were not significantly different among the samples. In conclusion, the results indicate that substituting 2${\sim}$3% tomato powder in Sulgidduk is optimal for quality, and provides a product with reasonably high overall acceptability.

• Korean journal of food and cookery science
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• v.24 no.3
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• pp.333-339
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• 2008

The aim of this study was to determine the optimal amount of paprika to add to rice flour in the preparation of paprika Sulgidduk. The moisture content of paprika Sulgidduk with paprika was found to be 39-43%. With increasing additions of paprika, the L-value was reduced, and the a- and b-values were increased. The pH was increased with the addition of paprika. In the mechanical evaluation of paprika Sulgidduk, the hardness of the 12% paprika Sulgidduk was the lowest during storage. The cohesiveness of the 12% paprika Sulgidduk was the highest during storage. The springiness and adhesiveness evidenced little difference among the different paprika levels assessed. Gumminess and chewiness were both at a maximum at a level of 3%. In the sensory evaluation of paprika Sulgidduk, the color, sweetness, moistness, and chewiness characteristics were considered optimal at a level of 9%. Consequently, Paprika Sulgidduk with the addition of 9% paprika to rice flour was determined to be the best recipe with regard to the sensory qualities of color, sweetness, moistness, chewiness, and overall acceptability.

• Culinary science and hospitality research
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• v.22 no.5
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• pp.190-199
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• 2016

This study was conducted to evaluate the effect of mugwort powder on the quality characteristics of sponge cake. Mugwort powder sponge cake was prepared with different ration of mugwort powder(0, 5, 10, 15, 20%). The specific gravity, baking loss rate and cake weight increases as the ration of mugwort powder. The sponge cake's a, b level increased with the increasing level of mugwort powder 20% appeared to be the highest. In terms of textural characteristics, the samples containing 5, 10, and 20% mugwort powder had significantly higher hardness than the control samples. The substance's level of springiness, and cohesiveness decreased as the mugwort powder added. In sensory evaluation, overall acceptability and taste of the cake was better than the others when 10% mugwort powder was added. The results indicated that substituting 10% mugwort powder to sponge cake is optimal for quality and provides a product with reasonable high overall acceptability.

• Journal of the East Asian Society of Dietary Life
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• v.20 no.3
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• pp.415-422
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• 2010

This study was performed to investigate the quality characteristics of yanggeng added with Green Tea Powder. The yanggeng was prepared with Green Tea Powder, Agar, Sugar and Salt. The yanggeng is made with various levels (0, 2, 4, 6, 8%) of gree tea powder added. Hunter's color value, texture profile analysis, and sensory characteristics of gree tea powder Yanggeng were examined. The addition of gree tea powder has tendency to increase the water content of yanggeng. As the content of gree tea powder increased, the lightness (L) and redness (a) decreased. In texture profile analysis, hardness decreased with increasing gree tea powder content. Cohesiveness and springiness didn't showed significant differences according to amount of gree tea powder. The results of the sensory evaluation showed that the sweetness, softness and overall acceptability were the highest scores at yanggeng containing 4% level of gree tea powder. In conclusion, the result shows that the yanggeng with 4% of gree tea powder is the best.