초록

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Gulbis were made of raw Pseudosciaena manchurica by different salting methods and drying conditions. During the Gulbi processing, the contents of trimethylamine(TMA), dimethylamine(DMA) and formaldehyde(FA) were chemically analyzed and the distribution of fat was microscopically observed. The conten...

Gulbis were made of raw Pseudosciaena manchurica by different salting methods and drying conditions. During the Gulbi processing, the contents of trimethylamine(TMA), dimethylamine(DMA) and formaldehyde(FA) were chemically analyzed and the distribution of fat was microscopically observed. The contents of TMA, DMA and FA in raw sample were 0.9mg, 3.19mg and 0.19mg per 100g, respectively. The TMA contents in Gulbi were rapidly increased to 24.82-76.32mg during drying, while the DMA contents in Gulbi were slowly increased and FA contents in Gulbi remained nearly unchanged. These changes were not influenced by the kinds of salt and salting methods. The formation rates of TMA and DMA were twice faster dried by the controlled condition than the natural condition. The fat in muscle moved to the skin layer through connective tissue with the laps of drying time. The extent of fat shifting was smaller salted by purified salt than by bay salt. The muscle tissue of Gulbi dried by the controlled condition had clearer spaces between white muscles than that of the natural condition. The muscle tissue of Gulbi salted with purified salt exsisted orderly, while the sample salted with bay salt was clumped.

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