Remelting the high-carbon ferrochrome dust in a direct current arc furnace (DCF)

The paper describes the results of pilot remelting of high-carbon ferrochrome dust in a 1.8 MVA DC arc furnace. Standard grades of high-carbon ferrochrome, such as FeCh800, FeCh850 and FeCh900, were obtained with the following furnace performance: chrome extraction - 89,5 %; slag ratio - 0,5; specific power consumption - 2 272 kW·h/ton

Состав и содержание экдистероидов в растениях Silene fruticulosa (Pall.) Schischk

The ecdysteroid profile of Silene fruticulosa (Pall.) Schischk growing in Kazakhstan has been investigated. It has been shown that the plant contained ecdysterone (2.4 g/kg of dry weight), 2-deoxyecdysone (0.45 g/kg) and 2-deoxyecdysterone (0.11 g/kg).Предпринято изучение экдистероидного профиля смолевки кустарничковой Silene fruticulosa (Pall.) Schischk, которая встречается на всей территории Казахстана в природных местообитаниях. Показано, что надземные части данного растения содержат экдистерон (содержание 2.4 г/кг сухой массы), 2-дезоксиэкдизон (0.45 г/кг) и 2-дезоксиэкдистерон (0.11 г/кг)

Creation of the Probiotic Consortium on the Base of Strains of Bifidobacterium spp.

Nowadays, a widespread circulation of disbiotic conditions among the population of all ages in Kazakhstan requires an active development in industry for both preparations and products with probiotic properties. The gained bacterial isolates, Bifidobacterium adolescentis 180, B. breve 204, B. breve 584 and B. breve 587 were used in our researches and screening showed they possess high probiotic properties. The consortium possesses strong antimicrobial activity to pathogenic and potentially-pathogenic microflora, insulated during disbacteriosis, as well as from vagina and urea. They are able to produce vitamin B12 and also have antimutagenic activity. As a result, the consortium on the base of strains of Bifidobacterium spp. was received, possessing the following advantages: contains live mass of microbial, antagonistically active strains B. breve and B. adolescentis; contains more than 10^9 alive Bifidobacteria; does not contain plasmids, which means that it could not be a carrier of antibiotic stability for Gram-positive receptive pathogenic and potentially-pathogenic microflora