Improving technology of fish semi-finished products with the addition of non-traditional raw materials

Authors

Keywords:

fish sticks, non-traditional raw materials, cranberries, goji berries, semi-finished products, organoleptic evaluation

Abstract

Taking into account the results of scientific literature research concerning the nutritional value and biological efficiency of cranberry and goji berry, we found that the development of the technology of semi-finished products with their use is relevant and has practical significance for the technology of production of fish products.

The article presents the results of studying chemical composition, organoleptic evaluation, and physicochemical changes in semi-finished products with the addition of non-traditional raw materials and determining their shelf life. The study illustrates the feasibility of combining freshwater fish with plant raw materials to expand the range of biologically valuable food products.

The obtained positive general impressions, harmonious, fishy and sweet and salty taste proved the feasibility of combining cranberries and goji berries with freshwater fish, as evidenced by the high indicators of appearance, taste, and odor. By consistency, the fish sticks are plastic and tight in section.

It was found that in the control sample, there are processes of hydrolytic spoilage after 90 days of storage that testify to the intensive lipid hydrolysis and the accumulation of free fatty acids in this sample. In the experimental samples, the hydrolytic spoilage gradually increases and only reaches the critical point by the end of the shelf life.

Oxidative processes in the lipids of semi-finished products were determined by changes in the accumulation of primary oxidation products – peroxides and secondary products – carbonyl compounds. According to the dynamics of changes in the peroxide value of lipids in semi-finished products, we found that the control sample is not subject to storage for 60–135 days, and the fat quality deteriorates in the experimental samples after 135 days and is characterized as not subject to storage.

It has been experimentally established that the addition of non-traditional raw materials allows not only to improve the technology of production of chopped semi-finished products but also to solve the problem of obtaining a product with increased nutritional value.

We found that the developed technology of fish semi-finished products will significantly expand the range of functional products based on natural components, which will to some extent expand the current problem of raw material processing from inland water bodies of Ukraine.

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Published

2021-06-29