• Culinary science and hospitality research
• /
• 제21권2호
• /
• pp.141-153
• /
• 2015

We investigated the feasibility of incorporating Aster yomena powder into cookies as a value-added food ingredient. In this study, we assessed the quality characteristics and antioxidant activity of cookies containing various concentrations (0, 3, 5, 7 and 9%) of Aster yomena powder(AYP). For the analysis, quality characteristics such as density and pH of dough, spread factor, moisture content, color(L, a, b), hardness, DPPH radical scavenging activity and sensory properties were measured. The Hardness and DPPH radical scavenging activity of the cookies significantly increased with increasing concentrations of AYP, whereas pH and density of the dough, L value of the cookies significantly decreased. The results of sensory properties showed that cookies made with 3% and 5% AYP did not differ significantly from the control in color, taste, and overall quality. Texture scores for the 3% and 5% AYP groups ranked significantly higher than those of the other groups. Taken together, the results of this study suggest that AYP is a beneficial ingredient for increasing the consumer acceptability and functionality of cookies. The quality characteristics of the 3% and 5% added samples exhibited significantly similar or higher values as compared to those of the controls, raising the possibility of developments in health-functional cookies. The results of the sensory evaluation produced very significant values for color, appearance, texture, and overall quality of instrumental analysis.

• Culinary science and hospitality research
• /
• 제22권5호
• /
• pp.179-189
• /
• 2016

This study investigated the quality characteristics of cookies containing Aronia powder, which is well known for its various functions and biological activity. In this study, we assessed the quality characteristics and antioxidant activity of cookies containing various concentrations (0, 2, 4, 6 and 8%) of Aronia powder(AP). To analyze quality characteristics, pH of dough, moisture content, color(L, a, b), hardness, and sensory properties were measured. Qualities, such as moisture content, redness and yellowness and hardness increased significantly (p<0.001). whereas pH and lightness of the cookies significantly decreased (p<0.001). The antioxidant activity measured by DPPH and ABTS radical scavenging activities were significantly higher than the control, and it proportionally increased as the amount of AP increased (p<0.001). The results of sensory properties showed that cookies made with 2% and 4% AP did not differ significantly from the control in color, taste, and overall quality. Texture scores for the 2% and 4% AP groups ranked significantly higher than those of the other groups. Taken together, the results of this study suggest that AP is a beneficial ingredient for increasing the consumer acceptability and functionality of cookies. The quality characteristics of the 4% added samples exhibited significantly similar or higher values as compared to those of the controls, raising the possibility of developments in health-functional cookies. The results of the sensory evaluation produced very significant values for color, appearance, texture, and overall quality of instrumental analysis.

• Korean Journal of Agricultural Science
• /
• 제42권2호
• /
• pp.131-139
• /
• 2015

This study investigated the quality properties of smoked breast meats produced by fresh and frozen-thawed duck meat. Each thirty breast meats from fresh and frozen-thawed duck carcass was used for this study. The yield of smoked breast meat was measured right after curing and smoking of raw duck breast meat. And, the number of total aerobic bacteria, color, texture, and sensory property of vacuum-packaged smoked breast meats were evaluated during storage at $4^{\circ}C$ for 28 days. No significant difference was found in yield between smoked breast meats produced by fresh and thawed duck meats (p>0.05). The number of total aerobic bacteria and color of smoked breast meat produced by thawed duck meat were not significantly different compared with those by fresh one throughout storage period (p>0.05). The all texture properties were not significantly different between smoked breast meats produced by fresh and thawed duck meats by 14 days of storage (p>0.05). However, on day 21 and 28, the hardness and gumminess of smoked breast meat produced by fresh duck meat were significantly higher than those by thawed one (p<0.05). In sensorial property, smoked breast meat produced by thawed duck meat received significantly high scores in color, juiciness, and tenderness on days 0, 14, and 28 and in flavor and overall acceptance on days 0 and 14 compared with those by fresh one (p<0.05). Therefore, we concluded that the use of thawed duck meat for producing smoked duck meat product may be not worse than the use of fresh duck meat in quality of smoked duck meat product. In addition, the use of thawed duck meat may be better in sensorial quality of smoked duck meat product than that of fresh one.

• Journal of the Korean Society of Food Science and Nutrition
• /
• 제39권5호
• /
• pp.737-744
• /
• 2010

In order to provide fundamental data on development of rice noodles, the quality characteristics of 10 kinds of commercial rice noodles were evaluated. Rice noodles were categorized into 3 groups for examination: 100% rice noodles with different shapes; round shape noodles with different rice contents; and noodles with different rice contents but smilar cooking method. Cooking properties, texture measurement, and sensory characteristics were evaluated. Frozen rice noodles and instant type of noodles made from composite flour of rice and wheat flour exhibited higher scores in overall acceptance. As for the form of noodle, round-shaped noodles seemed to be preferred in comparison to flat-shaped noodles. Generally, noodles with high texture scores of cohesiveness, adhesiveness, chewiness, resilience but not high score of hardness having smooth surface were preferred affecting overall acceptance scores. It appears that cooking methods and cooking time recommended by manufactures, noodle thickness and shape, packaging types such as frozen, refrigerated, and dried noodles were more influential than rice contents in aspects to the quality characteristics of the commercial rice noodle products in this study.

• Journal of the Korean Society of Food Science and Nutrition
• /
• 제33권2호
• /
• pp.386-391
• /
• 2004

This study was performed to investigate change of quality characteristics on traditional dried Persimmons from Sangju varity regions (sun-dried, Namjang and Bokryong). Moisture contents on drying were decreased and constant at from 7th to 14th days drying periods and its periods were recognized to constructing second peel of dried persimmons. Constructed second peel were affected on quality characteristics of traditional dried Persimmons. Also, in case of semi-dried persimmons were processed at 45∼55% level of moisture content. Final products of semi -dried persimmons were estimated in 25th from initial drying periods. Changes of water activity were increased reducing speed at time of water content decreased, second feel constructing during drying persimmons were introduced to decreasing of water activity. Weights of dried Persimmons were quickly decreased in 21th drying periods and slowly decreased after that time. Weight changing and water evaporation of dried persimmons at the Namjang and Bokryong were slowy decreased and controled after 7∼14th in periods of constructing second feel of dried persimmons. Change of brix in dried persimmons have had in 18∼27% value at initial drying periods and quickly increased after 7∼14th in drying periods and have in high value of 40∼50% at 21th drying periods. At the texture of dried persimmons, hardness were decresed after 7∼14th in periods and effected on decreasing of water content, increasing of drying times. Sensory score of dried persimmons were highest score of color, sweetness and texture at dried persimmons of Namjang. Score of astringency, sourness and mold smell were highest at dried persimmons of Bokryong. Value of highest overall acceptance score was at dried Persimmons of Namjang.

• Culinary science and hospitality research
• /
• 제18권1호
• /
• pp.1-14
• /
• 2012

This study examines the physiochemical and quality properties of the bread added with soy fiber powder to promote the intake of soy fiber. For this study, the powder for making bread was mixed with soy fiber, wheat flour and SF-1450 and SF-1260 at the ratio of 0~12% each. The ratios of the edible fiber contained in the soy fiber power samples were 72.0% in the SF-1450 sample and 67.8% in the SF-1260 sample. The mixograph characteristics tended to be conspicuons in proportion to the amount of the soy fiber added at midline peak height, width at peak and, width at 8.00. The specific volume of the bread tended to decrease significantly as the amount of the soy fiber increased from 2 to 12%. In terms of crust chromaticity change, L-value increased more significantly in the samples added with 4 to 12% than the control. For a-value, SF-1450 in the samples with 6 to 12% and SF-1260 in the samples with 8 to 12% more significantly decreased than the control. For such characteristics of texture as hardness, SF-1450 in the samples with 10 to 12% and SF-1260 in the samples with 6 to 12% increased more than the control. As discussed above, the sensual characteristics of the white pan bread with soy fiber added tended to be worse as the amount of the additive increased, compared with the control samples. Summing up the results of the physico-chemical analysis and the overall acceptability, those samples with 2~4% of SF-1450 and 2% of SF-1260 were found excellent.

• Korean journal of food and cookery science
• /
• 제22권1호
• /
• pp.88-95
• /
• 2006

To enhance the acceptance of hondonbyung ddeuksal, the optimal conditions for the addition of the leaf and root of Angelicae powder were evaluated with the central composite design and response surface methodology. With variations in the mixing ratio of the leaf and root of Angelicae powder, the smell and overall quality of hondonbyung differed significantly, but the color, taste and texture did not. The optimal conditions for the leaf and root content of Angelicae powder, predicted on the basis of each corresponding sensory parameters of hondonbyung ddeuksal, were $2.25\sim3.00%\;and\;0.50\sim0.63%$ for color, 1.55% and 0.85% for smell, 1.95% and 0.80% for taste, $1.00\sim1.22%\;and\;0.58\sim0.99%$ for texture and $2.79\sim3.00%\;and\;0.50\sim0.56%$ for overall quality, respectively. As for hondonbyung komul, there were no significant differences in color, smell, taste, texture or overall quality among the traditional group, and 10% and 20% reduced sweetener' groups.

• The Korean Journal of Food And Nutrition
• /
• 제30권6호
• /
• pp.1176-1183
• /
• 2017

This study was investigated the quality characteristics and antioxidant of dried Dioscorea bulbifera with various pre-soaking concentrations of oligosaccharide. Dioscorea bulbifera are prepared by additions of 0, 4, 6, 8 and 10% oligosaccharide solution, and dried at $50^{\circ}C$. The effects of pre-soaking percent of Dioscorea bulbifera slices were evaluated by the moisture, soluble solid, pH, titratable acidity, color, browning degree, texture, antioxidant activities and sensory test. According to the percent of pre-soaking oligosaccharide solution was increased, the moisture was increased but soluble solids and titratable acidity were decreased. With respect to the result of colors, Dioscorea bulbifera slices that underwent the 10% pre-soaked process (85.86%) were lighter than control (73.88%). However, the redness and yellowness scores were the lowest than control. The springiness and cohesiveness of texture showed no significant differences among all groups. Gumminess and chewiness of texture results were increased according to per-soaking concentration increase. Also the polyphenol, flavonoid and DPPH (${\alpha},{\alpha}$-diphenyl-${\beta}$-picrylhydrazyl) and ABTS [2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)] radical scavenging activities were significantly increased with increasing immersion concentration. The Dioscorea bulbifera slices supplemented with 6% pre-soaking oligosaccharide solution treatment showed the highest total sensory score. The results of our study indicated that when pre-soaking oligosaccharide solution is used to immerse the Dioscorea bulbifera slice, it has browning inhibition and antioxidant effect.

• Journal of the Korean Society of Food Science and Nutrition
• /
• 제43권9호
• /
• pp.1394-1399
• /
• 2014

Quality characteristics of radish treated with red clay-processed materials (RCPM) were investigated. Two different types of treatments using RCPM including a control were farm-raised in identical environments. General components, texture, nutrients, and antioxidant activities were performed. For general components analysis, total amounts of crude fat and ash were higher in radish treated with RCPM than in control. RCPM-treated radish showed higher contents of minerals (P, Mg, K, Zn, Mn, and Na) and vitamins (vitamin C, thiamin, and riboflavin) than those of control. RCPM-treated radish exhibited higher DPPH radical scavenging activities and total polyphenol contents than those of control, indicating higher antioxidant activities of radish raised by RCPM. In the textural analysis following refrigeration for 4 weeks, RCPM-treated samples showed a more stable texture and higher hardness values than those of control. Therefore, these results indicate that RCPM can be used to produce high-value radish of premium quality.

• Korean journal of food and cookery science
• /
• 제29권3호
• /
• pp.249-256
• /
• 2013

The objectives of this study were to investigate the quality characteristic of the nutrition bar with various concentrations (0, 5, 10, 20%) of defatted ginseng seed meal(DGSM). Specific gravity and pH of bar batters were lower in bars containing DGSM. Specific volume, loss rate and leavening rate of bars were decreased as DGSM increased. In color of bar crust and crumb, the L and bcolor values decreased according to the level of DGSM added, whereas the a color valuesand ${\triangle}$ increased. The bars with 5, 10 and 20% DGSM had significantly higher hardness value than control bar (p < 0.05). The result of sensory evaluation showed that intensity scores for color, flavor, taste, after taste and texture were highest for the nutrition bar substituted with 20% DGSM. The nutrition bar with 10% DGSM attained the highest overall acceptability score. Results indicated that optimal concentration of DGSM into the nutrition bar was 10%.