Obtention of omega-3-fatty acids cryoconcentrated fish oil from by-products of preserves industry
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Kuupäev
2021
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Abstrakt
The technology for obtaining and cryoconcentration of high-quality fish oil from
collagen-containing wastes of slightly salted herring under gentle conditions using
electrochemically obtained catholytes has been developed. Physicochemical analysis of raw
materials was carried out and the yields of products from raw materials at all stages of processing
were determined. Concentration of omega-3 fatty acids in oil was carried out using the cryo
method. The main phase transitions in oil with decreasing temperature have been determined. The
mass yields were determined and the biochemical composition of the cryoconcentrated fish oil
fractions was investigated. It was defined the temperature of -14° С at which a phase transition is
observed, providing an increase in the concentration of omega-3 fatty acids in oil by 3 times. The
usage of cryoconcentrated fish oil allows to produce biologically active food supplement or raw
materials for a functional food.
Kirjeldus
Received: February 24th, 2021 ; Accepted: May 2nd, 2021 ; Published: May 19th, 2021 ; Correspondence: elkuprina@yandex.ru
Märksõnad
cryoconcentration, omega-3 fatty acids, by-products, fish oil, salted herring preserves, biologically active substances, hydrolyzate, functional food, extraction, articles