Estimation of the meat yield of veined rapa whelk during its processing
Technological standardization of the product yield after processing of aquatic bioresources is conducted to facilitate their rational management and the control over their exploitation; it also provides the means to plan out the product output and consumption of raw materials. At present, the standards for wastes, losses and meat yield are absent for the processing of a major fishing target in the Azov and Black Sea Fishery Basin, namely, veined rapa whelk Rapana venosa. In this article, the results of development and control work on standardization of wastes, losses and meat yield for veined rapa whelk, conducted in the processing environment and in the laboratory setting, are presented. The yield of veined rapa whelk meat was assessed as a proportion of the total weight of raw material incoming for processing. It is shown that the meat yield depends on the month when veined rapa whelk was harvested. The highest yield was recorded for May and June; in July and August, a decrease in the yield of veined rapa whelk meat was observed, which resulted from the growth of egg cases on the mollusc shell. For the individuals, on which shells egg cases are absent, or have been removed, a unified standard of meat yield for the entire course of harvesting season should be adopted. The meat yield for the individuals, which shells have not been cleaned of egg cases, is recommended to be regulated separately. A relation between meat yield and shell length has not been found. Statistical analysis of the data obtained on the yield of veined rapa whelk meat has shown their adherence to the law of Gaussian distribution.
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Contribution biblioteca |
| Language: | Russian |
| Published: |
2020
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| Subjects: | Aquatic living resources, Marine molluscs, Meat yield, Shell length, Rapana venosa, Wastes, Losses, Выход мяса, Отходы, Потери, Водные живые ресурсы, Морские моллюски, Длина раковины, Нормирование, ASFA_2015::F::Food processing, ASFA_2015::B::Biotechnology, ASFA_2015::S::Standardization, |
| Online Access: | http://hdl.handle.net/1834/17786 |
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| Summary: | Technological standardization of the product yield after processing of aquatic bioresources is conducted to facilitate their rational management and the control over their exploitation; it also provides the means to plan out the product output and consumption of raw materials. At present, the standards for wastes, losses and meat yield are absent for the processing of a major fishing target in the Azov and Black Sea Fishery Basin, namely, veined rapa whelk Rapana venosa. In this article, the results of development and control work on standardization of wastes, losses and meat yield for veined rapa whelk, conducted in the processing environment and in the laboratory setting, are presented. The yield of veined rapa whelk meat was assessed as a proportion of the total weight of raw material incoming for processing. It is shown that the meat yield depends on the month when veined rapa whelk was harvested. The highest yield was recorded for May and June; in July and August, a decrease in the yield of veined rapa whelk meat was observed, which resulted from the growth of egg cases on the mollusc shell. For the individuals, on which shells egg cases are absent, or have been removed, a unified standard of meat yield for the entire course of harvesting season should be adopted. The meat yield for the individuals, which shells have not been cleaned of egg cases, is recommended to be regulated separately. A relation between meat yield and shell length has not been found. Statistical analysis of the data obtained on the yield of veined rapa whelk meat has shown their adherence to the law of Gaussian distribution. |
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