Radio broadcast station “Vesti FM” at a frequency of 97.6 (in Moscow). Myths and truth about freezing and freeze drying.

The broadcast was broadcast on May 25, 2019.
The program “From Mikoyan to Mamikonyan” discussed the topic:
Myths and truth about freezing and freeze drying.

SANFIROV: Hello, in the studio Valery Sanfirov and Musheg Mamikonyan – Chairman of the Board of Trustees of the Stolypin Prize Foundation. And today we hope to dispel the myths and questions that many listeners ask us. They relate to issues of cold, or rather – what is better – chilled or frozen? And we will deal with our experts, I will present them immediately. This is Gennady Vyacheslavovich Semenov – Doctor of Technical Sciences, Professor of Moscow State University of Food Production. Hello.

Semenov: Hello.

SANFIROV: And the candidate of technical sciences, also from the same university of food production, Irina Krasnov.

KRASNOVA: Good afternoon.

MAMIKONYAN: I would put a wider question about the application of technology in the food industry. Because cold is one of the technological methods that are used in the modern food industry. But it was used several thousand years ago, because a person always met with cold and food storage. Also applied heat treatment, with which a person has been living for several thousand years already. Drying under natural conditions is also used, and drying under the sun has also been used by humans for several thousand years. And sometimes such things happen when humanity is at the stage of a new understanding of what it should do in terms of saving the resources of the planet, preserving the products it produces, in order to rationally use the benefits of this planet, the benefits of their labor. And we have repeatedly said, this is called a system of sustainable development, where at every cycle, at every stage of development of production and development of industry, a person should try more rationally, with less energy resources, with less water, with less losses, to produce products to meet the needs.

SANFIROV: Musheg Lorisovich, sorry, I will clarify right away. But the cold – it is necessary, respectively, the extra resources.

MAMIKONYAN: Yes, of course, yes.

SANFIROV: Doesn’t that contradict this?

MAMIKONYAN: No, it does not. Why? Because in fact we, if we save through the use of these technologies, spend 100 units, and save 300, in this case we are doing it right. Otherwise, we cannot provide ourselves with high-grade food products in remote areas and in time. For example, berries grow only in summer, and we would use them well in winter and spring. There are several ways to spend this season, for example, to grow in greenhouse conditions in winter. Or to preserve what we can pick berries in natural conditions or in seasonal conditions, and keep it for another period. In addition, there are huge categories of products that require the product to be stored without cold, that is, it needs to be dried in some way. Different technologies are used for this – either direct drying, or drying through cold, these are very specific things, these are scientific words we must, in any case, cannot be avoided and will apply, this is sublimation, for example, drying. And since our program is dedicated to industrial policy, and we present historical parallels, I must say that a lot of works, scientific and fundamental works, patents that are now used in world science with the use of cold, are born in the period of Russia of tsarist, pre-revolutionary Russia . Then they developed and were applied in scientific schools, these technologies developed in the Soviet period. … Gennady Vyacheslavovich, you briefly say, this is how the technology of applying cold has evolved from conventional freezing systems, fast freezing to freeze-drying, what stages did Soviet science go through in this world?

Semenov: The important point here is that freeze-drying has been discovered by humans long ago, it was noticed long ago. It is illustrated by such a simple example: if you take wet underwear, for example, what everyone encountered in life, and put it in the frost, and even better in the frost with the wind, then after a while this fabric will be dry. It was noticed, and many hundreds of years ago, the Indians in America dried so the meat of bison: they cut it with plates, and in the freezing weather it slowly dried out, in summer periods they used it …

Listen to the audio file! Audio link below:

Both comments and pings are currently closed.

Comments are closed.

Разработано компанией ООО "Русские системы"