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Vol. 7 (2004 year), No. 1

Reut K.V., Derkach S.R., Beryoza I.G.
On the method of complex processing of chitin-containing raw material

The industrial process of chitin extraction is connected with the formation of specific multicomponent fluid wastes. Physicochemical characteristics of the formed wastewater have been studied in order to develop technology of its purification and utilization of valuable protein components. The optimal conditions for protein extraction by means of precipitation from wastewater using the neutralization method have been analysed.

(in Russian, стр.2, fig. 2, tables. 1, ref 3, MS Word 95, MS Word 95 19 Kb)

Vol. 7 (2004 year), No. 3

Reut K.V., Beryoza I.G., Derkach S.P., Novikov V.Yu.
Non-waste technology of marine Crustacea testa processing

The industrial process of chitin extraction of Crustacea testa is connected with the formation of specific fluid wastes containing a great amount of protein compounds and mineral substances. The opportunity of protein compounds' precipitation out of technological discharges has been studied. The schematic circuit of sewage two-stage treating of chitin production has been proposed.

(in Russian, стр.4, fig. 2, tables. 3, ref 5, MS Word 95, MS Word 95 62 Kb)

Vol. 16 (2013 year), No. 3

Reut K.V., Dolgopyatova N.V., Novikov V.Yu., Putintsev N.M., Konovalova I.N., Kuchina Yu.A.
Optical activity and spectrophotometric characteristics of chitosan solutions obtained from the Kamchatka crab and the Arctic shrimp

The size of specific optical rotation of chitosan solutions has been shown to depend on nucleophilicity of hydrolyzing agent, it grows in absolute value with increase of quantities of trailer glycosidic centers in chitosan solution; the chitosan deacetylation degree practically does not influence on the size of specific optical rotation. For chitosan from chitin of the Kamchatka crab and the Arctic shrimp identical laws of influence of molecular weight and deacetylation degree on the size of specific optical rotation have been obtained. Influence of phosphoric acid on conformational transformations trailer glycosidic centres of chitosan molecules has been defined.

(in Russian, стр.6, fig. 6, tables. 2, ref 12, Adobe PDF, Adobe PDF 0 Kb)