Development of Basic Technology for Obtaining Sodium Alginate from Brown Algae

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

ASSESSMENT OF THERMAL HISTORY METEORITE CHELYABINSK ON THE STRUCTURE OF AREA METAL PARTICLES

В данной работе исследовалась структура металлических включений восьми фрагментов метеорита Челябинск (обыкновенный хондрит, тип LL5 S4 W0) со слабо деформированной светлой литологией. Обнаружены различные особенности фазового и структурного состава, которые свидетельствуют о повторном нагреве некоторых металлических частиц.Metallic structures in fragment of the Chelyabinsk meteorite (ordinary chondrite LL5 S4 W0) with slightly shocked light lithology were studied. Different phases and structures are present. We detected the signatures of reheat in some metallic particles.Работа выполнена при частичной поддержке гранта РФФИ № 15-35-21164 мол_а_вед. и № 16-38-00532 мол_а

Czechs in the russian music culture

This work is about Czech musicians, which were involved in building of Russian national culture. Only major personalities are included in this work: E. Nápravník, V. Suk, U. Avranek, J. Pribik, J. Vitaček, H. wihan etc

Czechs in the russian music culture

Práce se zabývá českými hudebníky a jejich vlivu na ruskou hudební kulturu. Hlavními předsaviteli jsou: A. Nápravník, V. Suk, U. Avranek, UJ. Pribik, J. Vitaček, H. Wihan a další

Development of Basic TECHNOLOGY for Obtaining Sodium Alginate From Brown Algae

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