• Journal of the East Asian Society of Dietary Life
• /
• v.22 no.5
• /
• pp.613-623
• /
• 2012

In this study, the quality characteristics of salad dressing prepared with mulberry, Schisandra chinensis, and Discorea powder were evaluated. Salad dressing was prepared with salad base (plain yogurt : mayonnaise : fresh cream = 8:1:1), mulberry, Schisandra chinensis for acidity, and Discorea powder for viscosity (4:4:6:1 or 4:4:6:3). Discorea powder was added at levels of 0, 7, and 18% to the salad dressing. As the concentration of Discorea powder increased, the pH level increased, and acidity decreased. Hunter's color L (lightness) value of salad dressing decreased as the amount of Discorea powder increased. Viscosity increased according to the amount of Discorea powder. Moreover, total phenolic content increased according to the amount of Discorea powder. Further, DPPH antioxidant and hydroxyl radical activity of mulberry salad dressing increased as the amount of Discorea powder increased. Sensory preference test results showed that the salad dressing added with Discorea powder had higher scores for color, flavor, taste, and texture than the control. Regarding overall preference, salad dressing containing 7% Discorea powder had the highest scores among the treatments. From these results, salad dressing containing mulberry, Schisandra chinensis for acidity, and Discorea powder for viscosity could be a functional salad dressing with high antioxidant activity.

• Culinary science and hospitality research
• /
• v.18 no.2
• /
• pp.216-227
• /
• 2012

In this study, mulberry fruit juice was added with a salad dressing to compare and analyze the effect of different amounts of mulberry fruit juice(0, 10, 20, and 30%) and different breeds($Cheongilppong$ $and$ $Gwasang$ $2$) on the physicochemical qualities of salad dressing. As incresing of mulberry fruit juice added to, pH of the dressing decrease. Among the examined groups, $Gwasang$ $2$ were better than the others. Viscosity and sweetness of the dressing increased by the amount of mulberry fruit juice were added. DPPH radical scavenging activity of the control group was 15.60% while mulberry fruit juice salad dressing ranged from 19.73-50.83%. DPPH radical scavenging activity of $Gwasang$ $2$ group were higher than that of $Cheongilppong$ group. Color L and b value decreased as the amount of mulberry fruit juice added more, too value increase. The sensory property results showed that the salad dressing with 30% mulberry fruit juice was rated best. It was also preferred most. These results suggest 30% of mulberry fruit juice with $Gwasang$ $2$ are the best substitution ratio for salad dressing.

• Korean journal of food and cookery science
• /
• v.26 no.5
• /
• pp.537-544
• /
• 2010

This study was conducted to find an efficient use for mulberry fruit powder (MFP). MFP was added to salad dressing products at concentrations of 0.25, 0.5, 0.75, 1%, and pH, total acidity, viscosity, color, and emulsion stability were measured and sensory evaluation was conducted. There were no significant differences among salad dressing samples regarding pH, total acidity and moisture content. Salad dressing made with 0.5% MFP showed significantly higher viscosity during storage and made the most stable emulsion. For color, the control sample had the highest L and b values, and these values decreased significantly as the amount of MFP in the sample increased. The control salad dressing had the lowest a value of -3.26, and this value increased significantly as the amount of MFP in the sample increased. Sensory evaluation of salad dressing was performed by a trained consumer panel. The flavor intensity increased as the amount of MFP increased in the salad dressing samples. Sweetness was rated significantly higher as the amount of MFP increased in the samples. The control sample had the lowest sourness and off-flavor, but there was no significant difference compared to the samples containing MFP.

• Korean journal of food and cookery science
• /
• v.28 no.5
• /
• pp.531-540
• /
• 2012

In this study, the effect of yam juice on the quality characteristics of the salad dressing was evaluated. Salad dressings were prepared with the salad dressing base (plain yogurt:mayonnaise:fresh cream=8:1:1), mulberry, omija for acidity, and yam for viscosity in the ratios of 4:4:6:1 and 4:4:6:3. Fresh yam juice was added at the level of 0, 7, and 18% of the salad dressing. As the concentration of the yam juice increased, the salad dressing increased in pH and decreased in acidity. The Hunter color L (lightness), b (yellowness) and a (redness) values of the salad dressing decreased as the amount of yam juice increased. The viscosity increased with the amount of yam juice. The total phenol content also increased with the amount of added yam juice. The antioxidant activities such as DPPH and hydroxyl radical activity of the mulberry salad dressing increased as the amount of yam juice was increased. The sensory preference test results showed that the salad dressings with added yam juice had higher scores in the color, flavor, taste and texture in comparison to the control. In the overall preference, the 7% yam juice added salad dressing had the highest score among the treatments. From these results, it was suggested that the salad dressing with the added mulberry, omija for acidity, and yam juice for viscosity was a functional salad dressing with high antioxidant activity.

• Food Science and Preservation
• /
• v.19 no.6
• /
• pp.825-832
• /
• 2012

In this study, the quality characteristics and antioxidant activity of mulberry salad dressing prepared with yam juice during storage at $5^{\circ}C$ for four weeks were evaluated. The salad dressing was prepared with a salad base, mulberry, omija, and yam (4:4:6:1 or 4:4:6:3). Fresh yam juice was added to the salad dressing at 0, 7, and 18% levels. After four weeks storage, the pH increased whereas the acidity decreased. As the yam concentration increased, the pH increased to 3.84 and the acidity decreased to 0.14%. The Hunter color L (lightness), b (yellowness), and a (redness) values decreased over the storage period. After four weeks storage, the viscosity increased from 83.2 to 158.5 cp according to the amount of yam juice that was added. The antioxidant activity, such as the DPPH radical scavenging activity, and the total polyphenol content of the salad dressing improved as the yam concentration increased. Moreover, according to the storage time, the peroxide value did not increase. These results show that the mulberry salad dressing to which omija and fresh yam juice were added maintained its freshness with high antioxidative activity during storage.

• 한국약용작물학회:학술대회논문집
• /
• 2011.09a
• /
• pp.382-383
• /
• 2011