Biomedical subjects

O C Bjarnø

Publications and source records attributed to O C Bjarnø.

3 recordsLinked to original sources

PubMed1982

Multicomponent analysis of meat products by infrared spectrophotometry: collaborative study.

A new method for rapid multicomponent analysis of meat products based on infrared transmission was tested in a collaborative study with 4 laboratories. A series consisting of 31 samples of different meats, cooked sausage, liver sausage, and fermented sausage was distributed and analyzed at all laboratories for protein, fat, and water by the present method and by well established reference methods. There was no significant difference between the infrared method and reference methods at the 95% confidence level for determination of protein, fat, and water in meat products.

Animals↗

PubMed1981

Multicomponent analysis of meat products.

A new method for rapid multicomponent analysis of meat products is reported. The sample is homogenized, and then dispersed by treatment with an alkaline aqueous solution combined with mechanical subdivision. Constituents are determined by infrared transmission spectrophotometry in the fundamental IR absorption bands. It is possible to measure protein, fat, and carbohydrate in about 5 min with an accuracy and precision comparable to that of well established standard methods, and no expensive or dangerous chemicals are used.

Animals↗

PubMed1980

Kjel-Foss automatic analysis using an antimony-based catalyst: collaborative study.

Collaborators in 7 Kjel-Foss laboratories and 1 manual Kjeldahl laboratory performed protein determinations on fishmeal: 10 with traditional mercury catalyst and 10 with a new antimony-based catalyst. Repeatability, interlaboratory variation, and variation vs. manual Kjeldahl were equal to or better with the new catalyst than with the mercury catalyst. In addition, 48 different products were analyzed: 5-10 determinations were made on each product with the mercury catalyst and 5-10 were made with the new catalyst. After the Kjel-Foss procedure was modified slightly with higher acid settings, the differences in recovery and repeatability of the 2 procedures were not more than +/- 1%.

Animals↗