To the salting process of fish many studies are devoted, both in experimental and in theoretical terms. Study of features of fish salting in historical terms can be divided into 3 groups. One group of researchers believes that osmotic pressure has a major influence during the salting process. Another group attributed this process to the influence of molecular diffusion. The third group considers that during this process takes place both osmosis and diffusion. Determination of the main characteristics (salinity, diffusion coefficients, time of salting, etc.) is a very time-consuming task. This leads to the idea of searching for innovative research methods. Current state of science, in addition to theoretical solutions points to the possibility to determine the basic characteristics of salting and applying methods associated with the interaction of ultrasound and electromagnetic radiation with matter. In our studies, we have been producing laser beam scanning of salt solution and fish meat thickness. Scattered radiation is determined by the salt concentration, diffusion coefficients, the size of the diffusing particles. This method is called a photon correlation spectroscopy. It has been applied in our work. The dependence of the scattered light intensity on the concentration of sodium chloride solution (brine) has been investigated. According to diffusion coefficient a diffusion in solution to herring skin a conclusion was made that salt solution obtains fractal structure and its size was determined. Also we determined diffusion coefficients depending on the temperature in the layers. The layers are brine-leather, leather, and herring meat thickness. The process of diffusion-osmotic equilibrium revealed at temperatures of 10-12 ° C. Suggested the possibility of higher quality of fish salting at low temperatures. On the basis of the selfsimilar solution of the differential diffusion equation, a formula for calculating time salting fish was obtained

method of photocorrelation spectroscopy, diffusion coefficient, concentration, viscosity, mathematical model, selfsimilarity, time of salting

1. Ana Brás, Rui Costa, Influence of brine salting prior to pickle salting in the manufacturing of various salted-dried fish species// Journal of Food Engineering. Vol.100, Issue 3, 2010, рр. 490–495

2. Kristín Anna Þórarinsdóttir The influence of salting procedures on the characteristics of heavy salted cod. Doctoral thesis. Department of Food Technology, Engineering and Nutrition, Lund University, Lund, Sweden. 2010. 114 р.

3. Artyuhova S.A., Grokhovsky V.A [et al.] Tehnologiya ryby I rybnih produktov: uchebnik dlya vuzov [Technology of fish and fish products: a textbook for high schools] ed. A.M. Yershov. 2nd ed. Moscow: Kolos. 2010. 1063p. (In Russ.).

4. Shumanova M.V. The possibility of using nanotechnology techniques to study the process of salted herring Visokie technologii, fundamentalnie issledovaniya, innovatsii: sbornik statei 17 mezhdunarodnoi nauchnoi konferentsii «Fundamentalnie i prikladnie issledovaniya, razrabotka i primenenie visokih tehnologii v promishlennosti i ekonomike».[High technology, fundamental research and innovation: a collection of articles of the Seventeenth International Scientific-Practical Conference "Fundamental and applied research, development and application of high technologies in the industry and the economy"] SPb . 2014. pp. 181-187 (In Russ.).

5. Schumanov V.A., Fatykhov Y.A., Zimarev [et al] On the dependence of the effective viscosity of beef in negative temperatures. Mezhdunarodnaya nauchnaya konferentsiya: Proizvodstvo ribnoi produkzii: «Problemi novoi trchnologii I kachestva» [International scientific conference: Fish production: "The problems of the new technology and quality]. Kaliningrad, AtlantNIRO, 2009 -pp.139 141. (In Russ.)

6. Shumanova M.V., Fatykhov Y.A., Schumanov V.A. On the problem of mathematical model of herring meat salting. Vestnik Mezhdunarodnoi akademii holoda [Bulletin of the International Academy of Refrigeration] SPb . 2015. no. 1. pp. 26-28 (In Russ.).

7. Ershov A.M., Bestuzhev A.S., Fatykhov Y.A., Balashov S.O. Study of mass transfer processes in combined dry fish salting. Vestnik MSTU. [Bulletin of MSTU], 2010, vol. 13, no.4/1, pp.673-677. (In Russ.)