Russian State Agricultural University

About: Russian State Agricultural University is a education organization based out in Moscow, Russia. It is known for research contribution in the topics: Population & Biology. The organization has 80 authors who have published 61 publications receiving 446 citations.

The effect of sweet potato powder on the physical, chemical and organoleptic indicators of bread quality

Abstract: In the diet of the population of West African countries, there is a shortage of macro- and micronutrients, which negatively affects people’s health. Bakery products traditionally occupy a significant part in the diet. Sweet potato is a promising ingredient in the enrichment of bakery products. Sweet potato ranks seventh among crops in terms of prevalence and use in nutrition, because It is an unpretentious plant, resistant to drought, pests, diseases and can grow in flooded soils. An analysis of the data of finished products obtained by adding sweet potato powder obtained by infrared drying sweet potato powder into the dough in the amount of 5% and 10% by weight of flour showed that the shape stability of the samples increased by 4% and 2% compared to the control. When adding sweet potato powder in an amount of 10%, the specific volume increased by 6%, porosity - by 3%, acidity - by 25 - 37% compared with the control. When making juice from sweet potato in an amount of 50-70%, the specific volume of products increased by 9-21% compared with the control sample. The largest specific volume was possessed by products with the addition of sweet potato juice in an amount of 70% instead of the mass of water according to the product recipe. The acidity of bread increased by 6% in samples with the introduction of juice for 50 and 60%, and by 12% in the bread sample with the introduction of juice for 70%. The porosity of the crumb of bread increased slightly. A technique is proposed for determining the rational dose of adding powder and sweet potato juice to bread.

The design of the working equipment for laying a drip tape based on the Grimme GF-75/4 ridge former

Abstract: The article examines statistical data on the amount of precipitation in the spring - summer period and substantiates the need for irrigation measures when growing potatoes in the Moscow region. The rationality of the use of drip irrigation as the most economical and effective method of watering has been proved. With drip irrigation, there is practically no danger of excessive watering, causing the leaching of nutrients from the root layer, an increase in the level of groundwater, and an additional load on the drainage network. The use of drip irrigation will make it possible to maintain an optimal water and air balance during the growing season. The possibility of combining technological operations for laying a drip tape and forming potato ridges is considered. It is found that the resistance of the drip tape laying will not create significant traction resistance, so the working equipment can be mounted on the ridge former. The design of a drip tape stacker based on the Grimme GF-75/4 ridge former was developed and a mechanized drip tape was laid in a potato ridge. It has been proven that the implementation of the drip tape laying and the formation of ridges with one machine will increase the productivity of the work and reduce the energy consumption.