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고승정,박홍현,이경희 한국조리과학회 2004 한국식품조리과학회지 Vol.20 No.6
In order to seek the possibility of using rice flour and potato as thickening agent instead of roux, sensory evaluations of cream soups manufactured from 3 different thickening agents were conducted. The viscosity, moisture and lipid contents, and the color affecting the quality of the soup were investigated. The results were as follows: 1. As thickening agents for 200g of the cream soups, rice flour and potatoes at 20.5 and 90g, respectively, were needed in order to make soup with a similar concentration to that manufactured using 20g of roux. 2. In the sensory tests, the soup made with rice flour had the most preferred overall acceptability, with a significantly preferable taste. The soup made with rice flour had the strongest whiteness and savory taste, but that made with roux had the strongest viscosity and smooth feeling in the mouth feel. There was no difference between the samples with regard to nutty flavor. The whiteness, palatability, viscosity and smooth feel sensory properties were positively correlated with the overall acceptability. Among these properties, the palatability showed the highest correlation (r=0.538) with overall preference. 3. The cream soup made using potatoes as the thickening agent had a 76.20% water content, whereas those made with rice flour and roux had 73.00 and 64.00% respectively. The fat content of the cream soup made with roux was 10.24%, which was twice as high as those of the rice flour and potato soups. 4. Among the 3 kinds of cream soup, the one made with rice flour had the whitest color
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조규태,문효방,송영채,조용철,김광수,최은정,고승정 한국수산과학회 2005 Fisheries and Aquatic Sciences Vol.8 No.1
This is a subsequent study to our previous finding that Pacific oysters, Crassostrea gigas, gained a so-called upper plateau concentration, around 30,000ng/g dry weight digestive gland for benzo(a)pyrene, showed reproductive behavior but produced their ensuing reproductive outputs damaged. A serial dilution of sediment elutriates from Jinhae Bay, Korea, where pollution was progressive, were exposed to gametes of the Pacific oyster for 0, 5, 10, 20, 30, and 60min to detail the pollutant effects on very young specimens. There was an apparent critical dilution over which adverse effects are evident. This was 10% of the present sediment elutriate, corresponding to 0.3ng/g on the basis of total polycyclic aromatic hydrocarbons (PAHs) for the oyster. Within the dilution the embryonic development was not influenced by the duration of exposure to its gamete stage. At higher dilutions over the critical dilution, occurrence of abnormality increased dependent on the pollutant dilution and the duration of exposure. Similar trends were also found in larval mortality. However, overall, the chemical toxicity was more significant to morphogenesis than to survival, suggesting a potential recruitment of the pollutants-induced abnormal larvae in the wild population to threaten the population integrity.
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