Research on the Potential of Secondary Raw Materials Formed during Bivalve Mollusks Processing
Authors:
Natalia V. Dementieva, Tatyana M. Boitsova, Andrey A. Bokov
Abstract:
The catch analysis of the main fishing objects in the Far Eastern basin indicates quite large production volumes of both fish and non-fish objects. When processing bivalves, there is up to 70 % of waste generated, including shells and inedible meat parts of the body. A man studied the chemical composition of dry and wet mussel waste. The chemical composition research of dry mussel waste demonstrates that shells contain 80.1 % minerals, 0.8 % water, 0.3 % total nitrogen; with no lipids. Wet waste contains much less minerals (12.7 %), more water (20.2 %) and protein (6.7 %), with 7.9 % lipids. The shell minerals consist of calcium, mainly. Wet waste, along with calcium, contains sodium, potassium, iron, aluminum and zinc oxides, primarily. When examining wet mussel waste, the researchers found that there were the following carbohydrates in it: monosaccharides (glucose, galactose, mannose and fructose), glycogen, hexosamines. The overall yield of carbohydrates is 1.283 %. Amino acid composition studies of wet mussel waste proteins reveal the interchangeable and essential amino acid inclusion in it. The following interchangeable acids predominate: aspartic and glutamic acids, glycine, alanine, arginine; as for the essential ones, there is a high content of leucine and lysine, least of all in the protein of the essential acid histidine. Due to the presence of a large amount of mineral substances dry mussel waste can be used for the feed additives production. Wet waste demonstrates a higher value: it contains high-grade protein compared with dry waste, and has a more diverse mineral composition. There are valuable carbohydrates in the waste, therefore, with appropriate processing, this raw material can be included in the multicomponent dispersed food products composition.
Keywords:
secondary raw materials; mussel cutting waste; chemical composition
For citation:
Natalia V. Dementieva, Tatyana M. Boitsova, Andrey A. Bokov. Research on the Potential of Secondary Raw Materials Formed during Bivalve Mollusks Processing. Индустрия питания|Food Industry. 2023. Vol. 8, No. 4. Pp. 109–118. DOI: 10.29141/2500-1922-2023- 8-4-11. EDN: YAWNSG.
