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KMID : 0665420120270020193
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Korean Journal of Food Culture
2012 Volume.27 No. 2 p.193 ~ p.201
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Quality Characteristics and Shelf-life of Tomato sauce Prepared by Addition of fresh dill
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Kim Jang-Ho
Yoo Seung-Seok
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Abstract
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The purpose of this study was to investigate the effects of dill on the quality characteristics of tomato sauce during 60 days
of storage. As storage time increased, the pH stays between 4.10-4.22 on all additives. The lowest pH appeared on a 0%
dill added sample during the storage period, except at 45 or 60 days of storage. The more dill was added, the less sugar
appeared, and this was generally consistent across other samples. As storage times increased, the sugar content showed a tendency to decrease in all additives. Salinity turned out to be between 0.90-1.48 among all of the additives. For the Lvalue, the more dill was added, the less the L-value decreased, and this was consistent across all the samples. As the storage period increased, the L-value showed a tendency to decrease in all samples. The more dill was added, the more the a-value showed a tendency to decrease. The b-value showed a tendency to decline the more dill was added. Also, as storage time increased, the b-value decreased in all samples. Viscosity showed a tendency to increase in all samples the more dill was added. The reducing sugar content was kept between 44.83-55.38. A sensory evaluation was performed by 15 professional panelists with scoring tests for color, flavor, taste, aftertaste, viscosity, and overall acceptability. The tomato sauce with 2% dill showed the best score in the color, flavor, and overall acceptability. From the above results, the data suggests that an addition of 2% fresh dill to tomato sauce is recommended for commercial use.
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KEYWORD
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Tomato sauce, dill, sweetness, salinity, viscosity, reducing sugar, quality characteristics
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