Biomedical subjects

E Baumgartner

Publications and source records attributed to E Baumgartner.

35 records · Page 2Linked to original sources

PubMed1984

[Determination of alpha-gliadin content in gluten-containing and gluten-free heated food].

The amount of alpha-gliadin and whole gliadin in bread dough after heating at temperatures of 50-100 degrees C was determined by ELISA. At temperatures above 80 degrees C the amount which could be found was greatly reduced. In pasta foods containing wheat (with a max. drying temperature of 75 degrees C) alpha-gliadin could be determined totally but in wheat bread (crust and crumb) only 0.5-40% of the content in the original flour was found. The results of an analysis of "gluten-free" pasta foods on the market and the amounts of alpha-gliadin found are discussed in relation to the recommendations of the Codex alimentarius (WHO).

Bread↗

PubMed1984

Rat thymocyte subpopulations: heterogeneity of the fetal calf serum dependent rosette forming cells.

We demonstrate heterogeneity within a rat thymic cortical population, the fetal calf serum dependent rosette forming cells. Approximately half of these cells are guinea pig serum sensitive. Guinea pig serum sensitive and insensitive rosette forming cells show different distribution patterns on a continuous gradient of Percoll. They contain different amounts of TdT enzyme and regenerate with different time kinetics following sublethal irradiation. These data demonstrate new aspects of heterogeneity within the rat thymic cortical population.

Animals↗

PubMed1979

Rapid and simple determination of aflatoxin M1 in milk in the low parts per 10(12) range.

A method for extracting aflatoxin M1 from milk is proposed in which the use of disposable Extrelut clean-up columns simplifies the analysis considerably in comparison with existing methods. The quantitative determination is based on one-dimensional thin-layer chromatography and fluorescence densitometric measurement. The detection limit is 5 ppt (parts per 10(12)) in milk and the recovery is 78 +/- 4% at a level of 50 ppt.

Aflatoxins↗

PubMed1979

Determination of food preservatives and saccharin by high-performance liquid chromatography.

The quantitative analysis of benzoic and sorbic acid, methyl, ethyl and propyl esters of p-hydroxybenzoic acid and saccharin in foodstuffs is described. These compounds are quantitatively extracted with disposable clean-up columns packed with Extrelut and simultaneously determined by high-performance liquid chromatography on reversed-phase columns. Complicated matrices such as cheese, cake, ketchup and chocolate were tested and recoveries were generally better than 95% in the concentration ranges normally used in the food industry.

Benzoates↗

PubMed1978

[The quantitative analysis of the mycotoxin patulin in fruit juices by high-pressure liquid or thin-layer chromatography (author's transl)].

A new method determining patulin in apple and grape juice is proposed. The juice is extracted with an Extrelut column and the quantitative determination is made by high-pressure liquid or thin-layer chromatography with lower limits of 5 and 20 ppb (10(9)), respectively. The recovery is more than 90%. Compared with other methods the proposed procedure is faster, needs less solvents and is therefore suitable for serial investigations.

Beverages↗

PubMed1978

[Chromosomal changes following irradiation with small doses (author's transl)].

The authors examined the chromosomes of 20 patients who underwent thyroid investigations. Leucocyte cultures from peripheral blood were studied immediately before the indtroduction of 131I, and again after 48 hours. The results indicate that a total body dose of 0.05 rad increases chromatid damage as well as increasing the incidence of labile chromosome changes.

Adult↗

PubMed1975