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Source: Russia Federal Space

#CPC #Main #Piloted astronautics 10/28/2019 09:30 a.m.

When it comes to space nutrition, many people imagine tubes of prepared dishes that were used at the dawn of manned space exploration. However, the flight duration increased every year, and taking finished products with them became unprofitable – both in terms of shelf life and in the volume and weight of the tubes. Therefore, now on the ISS the basis of the diet consists of sublimated products. Sublimation of products is the removal of moisture from freshly frozen foods in a vacuum. Dehydrated products are portioned in special vacuum bags. However, it’s worth adding hot (or cold, for example, when it comes to cottage cheese, juices, cold snacks) water and you get the first or second dish in the form as if it had just been cooked. Sublimation technology allows you to store nutrients in them, trace elements, vitamins, natural smell, taste and even the original form. At the same time, such food can be stored without any damage to quality for several years. However, not all space food is sublimated: there are dishes that are best left in their original form, for example, azou, casserole, beef with a vegetable side dish, omelet with chicken liver, etc., they are packaged in cans of various sizes. duplicating or main crew astronauts and astronauts participate in the tasting of dishes of the Russian diet, which is carried out in advance to eliminate food allergies and individual intolerance of products, as well as to compile additional sets of food. “For space The crew on the ISS has developed a diet of regularly supplied products, ”said Andrei Balandin, senior researcher at the 1st laboratory of the 41st department of the CPC. – Every day is designed so that the optimal ratio of proteins, fats and carbohydrates is observed. This is the main part of the Russian 16-day diet, which covers the main exchange of the astronaut and energy costs for performing physical exercises on simulators located at the station. Only 2000 kcal. ”Individualization of nutrition and replenishment of the missing calorie content is achieved through additional sets of nutrition (DNP), which each astronaut can order according to the tasting results to his taste. Now the crew members of the ISS-63/64 Nikolay Tikhonov and Andrei Babkin, who will leave for the station next spring, have already decided on their choice of DNP. nuts, Ginger cookies and vitamins, for lunch – aspic sturgeon, mushroom soup, meat and vegetable solyanka, Borodino bread and peach-currant juice with pulp, for dinner – pork with lecho, Vostok cookies, plum fruit stick and cherries. In addition, a certain amount of coffee and tea is allocated for the whole day – with or without sugar. Fresh fruits and vegetables are also delivered by cargo and manned ships. “In the prospective flights to the Moon and Mars, it is planned to leave everything at the level of nutrition so far,” said Andrei Balandin. “Perhaps in the future they will grow, process something on ships and stations, but now sublimates are the best option.”


EDITOR’S NOTE: This article is a translation from Russian Language to English.

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