[Antacid and sorption properties of mushroom powder made of dried solids (Pleurotus ostreatus)].

It was established in the experiments determining the influence of the mushroom powder on acidity of the HCl solution by means of ionometrical method that in 15 minutes after introduction 3 gram of the powder pH of the solution increases from 1.62 up to 2.64.

[The biochemical marker dynamics of the maternal serum in different chromosomal disorders of the fetus].

The reasons for false-positive results of Down syndrome screening have been analysed. It has been found that the family pericentric inversions of chromosome 9 in fetus are accompanied by AFP and HCG changes equal to Down syndrome pregnancies. The average marker's levels in cases of per inv (9) were: AFp-0.

[The prenatal diagnosis of Down's syndrome based on the biochemical screening of maternal serum markers].

The role of maternal alpha-fetoprotein and chorionic gonadotprin screening in complex prenatal diagnosis of Down syndrome had been studied. The average markers' values in cases of fetus trisomy 21 were 0.67 MoM (AFP) and 2.

[The possible carcinogenic action of a protein concentrate from Saccharomyces yeasts grown on molasses].

A testing was done in a chronic experiment on 300 rats and 360 mice of both sexes for carcinogenic potential of a new protein product from Saccharomyces yeast grown in melasse. The production procedures and techniques of the above product have been worked out at the Ukrainian Research Institute of Spirits and Biotechnology of Food Stuffs of Gospishcheprom (State Food Industry) of Ukraine. The studies made showed the new protein product has no carcinogenic effect.

[The possible hypolipidemic action of the dietary fiber from barley meal].

A possible hypocholesteremic property was studied of food fibers from barley in a subchronic experiment on 60 white nondescript male rats under developing hypercholesterolemia of alimentary genesis. An aggravated dose of the above fibers has been shown to reduce deviations from the reference level brought about by administration of exogenous cholesterin. On completing the clinical trials, the studied product may be used in nourishment of those individuals presenting with disordered lipid metabolism.

[The comparative characteristics of the antibiotic sensitivity of psychrophilic and mesophilic aeromonads].

The general regularities of the antibiotic susceptibility of psychrophilic and mesophilic aeromonads were determined. The antibioticograms were in general similar. Still, there was observed a higher susceptibility of Aeromonas salmonicida to tetracycline, chloramphenicol and rifampicin, as well as a larger number of strains susceptible to semisynthetic broad spectrum penicillins (ampicillin and carbenicillin) and cephazoline.

[Qualification requirements for physician-bacteriologists].

The authors present the qualification requirements to laboratory physicians specialized in bacteriology. The knowledge and skills of a bacteriologist, necessary for his organizations, methodologic, prophylactic, and diagnostic activities, are listed.

[Antibiotic resistance of Shigella isolated in the Kara-Kalpak A.S.S.R. 1987-1988].

Sensitivity of Shigella spp. isolated in one of the hospitals of Nukus within 1987-1988 and earlier in 1977 and 1985 was studied. S.

[Low-molecular immunomodulators of natural origin].

It was shown that low molecular peptides Nos. 1 and 2 produced by soil bacteria had a pronounced immunostimulating effect. When the preparations were administered at various periods with respect to immunization the number of AFC in the spleen of immunized animals increased 2-4 times.

[The food value of protein concentrates made from secondary raw oil sources--oil cakes and groats from corn germ, tomato seeds, safflower and flax].

Protein concentrates from oil cake of tomato seeds and corn bud, and groats of safflower and flax were studied for the content of the main food substances: proteins, lipids, carbohydrates, mineral substances, as well as for the fatty acid lipid spectrum, amino acid composition of proteins and the level of available lysine. In experiments on rats given rations containing protein concentrates from oil raw materials (calorific value 5.9 and 18%) as the only source of protein, the NPUtr coefficient and Dtr were determined.