Cryoextrusion in technologies for processing aquatic biological resources
Abstract The Murmansk region is a coastal region and an integral part of the Arctic economic zone of Russia with its unique geographical location. The development of the regional fishing industry reaches a high level, which makes it possible to fully use the entire range of hydrobionts both for food...
| Published in: | IOP Conference Series: Earth and Environmental Science |
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| Main Authors: | , , |
| Format: | Article in Journal/Newspaper |
| Language: | unknown |
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IOP Publishing
2020
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1088/1755-1315/539/1/012193 https://iopscience.iop.org/article/10.1088/1755-1315/539/1/012193/pdf https://iopscience.iop.org/article/10.1088/1755-1315/539/1/012193 |
| Summary: | Abstract The Murmansk region is a coastal region and an integral part of the Arctic economic zone of Russia with its unique geographical location. The development of the regional fishing industry reaches a high level, which makes it possible to fully use the entire range of hydrobionts both for food and forage purposes. Freezing is used as a way to preserve such products in the conditions of fish processing enterprises and fishing vessels in order to improve the safety of proteins, vitamins and minerals in the composition of extracted marine products. To involve in the processing of certain types of raw materials that are difficult to traditional cutting and grinding in thawed form (small fish raw materials, secondary fish raw materials, including waste from cutting fish-heads, gills, vertebrae, trimmings), as well as for algae, it seems rational to carry out technological processes for their processing (including grinding) in conditions of negative temperatures, preventing the phase transition of moisture into a liquid state. Due to grinding in the final product (semi-finished product, minced mass), the availability of nutrients increases. Grinding using the cryoextrusion method, that is, pressing frozen raw materials through a die with holes of a certain diameter, which is based on the cutting ability of intracellular and intercellular ice, allows you to eliminate moisture and nutrient losses, reduce the time and energy costs of defrosting. The semi-finished product obtained by cryoextrusion can be stored for a long time in a frozen state or used to produce a finished product. |
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