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Title: CHANGE OF QUALITATIVE CHARACTERISTICS OF DEEP-CHILLED RAINBOW TROUT FILLET WITH A GIVEN AMOUNT OF ICE WATER (NO MORE THAN 40%) DURING ITS LONG-TERM STORAGE
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CHANGE OF QUALITATIVE CHARACTERISTICS OF DEEP-CHILLED RAINBOW TROUT FILLET WITH A GIVEN AMOUNT OF ICE WATER (NO MORE THAN 40%) DURING ITS LONG-TERM STORAGE
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1314-2704
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English
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20
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6.1
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The cryoscopic temperature (-1,3°C) in rainbow trout samples was determined. The calculation of the values of the individual temperature storage mode was carried out, ensuring that the product contains no more than 40% of ice water. The calculation of the amount of ice water was carried out using the calculation method proposed by D. Ryutov. A value of 40% is taken as the maximum permissible ice content in deep-chilled fish. According to research by N. A. Golovkin, this percentage of ice water provides a product that can be compared with cooled raw materials in quality. The samples were vacuum-packed and stored for 43 days in a cooled (control 2.5±0.5°C) and deep-chilled (-2.2±0.1°C) state. Changes in the qualitative characteristics of the samples stored were measured: the amount of volatile basic nitrogen (VBN), pH, fat acidity value, mass losses, the quantity of mesophilic aerobic and facultative anaerobic microorganisms. We also conducted a histological analysis of muscle tissue, which allowed us to determine the nature of crystal formation and its localization.
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conference
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20th International Multidisciplinary Scientific GeoConference SGEM 2020
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20th International Multidisciplinary Scientific GeoConference SGEM 2020, 18 - 24 August, 2020
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts & Letters; Acad Fine Arts Zagreb Croatia; C
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191-198
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18 - 24 August, 2020
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website
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cdrom
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7533
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deep-chilled fish; cryoscopic temperature; amount of ice water; individual deep chilling modes; histological analysis
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