Published date: Jan 15 2020

Journal Title: KnE Life Sciences

Issue title: International Applied Research Conference «Biological Resources Development and Environmental Management»

Pages: 1–11

DOI: 10.18502/kls.v5i1.6011

Nina Sokolansuper_sheldon@mail.ruDepartment of Chemistry, Murmansk State Technical University, Murmansk, Russia

Lyudmila KuranovaDepartment of Food Production Technology, Murmansk State Technical University, Murmansk, Russia

Nikolay Voron’koDepartment of Chemistry, Murmansk State Technical University, Murmansk, Russia

Vladimir GrokhovskiyDepartment ofDepartment of Food Production Technology, Murmansk State Technical University, Murmansk, RussiaFood Production Technology, Murmansk State Technical University, Murmansk, Russia

The possibility of making sodium alginate from a by-product (fucus semi-finished product), obtained by producing an extract from brown algae of the Fucus family – fucus bubbly (F.vesiculosus), has been studied. It has been found that up to 80% of the alginic acids contained in the feedstock remain in the fucus semi-finished product, which can also be isolated and used. The principal technology of sodium alginate from the fucus semi-finished product is developed, consisting of the following main stages: preparation of raw materials, reduction, pretreatment, extraction of alginates, isolation of alginic acid, production of sodium alginate, drying. As a result of optimization of the technological scheme, it was possible to increase the yield and improve the quality of the product: the yield of sodium alginate was 4.5% (which is 20% higher than the original), the content of alginic acids increased by 7% and was 92% in terms of dry matter, kinematic the viscosity increased almost twofold - its value reached a value of 500 cSt. Investigations carried out by the Fourier method of IR spectroscopy on the Shimadzu IR Tracer-100 ( Japan) showed that the sodium alginate obtained from the fucus semi-finished by optimized technology is not inferior in quality to sodium alginate produced from laminaria (Sigma Aldrich (USA).) Sodium alginate, made from the fucus semi-finished product, can be used as one of the components of gelling fillings for the production of canned fish in jellies. A technological scheme for processing algae is proposed.

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