Abstract
The residual carbon content of a variety of bovine-derived samples and forage was determined by inductively coupled plasma optical emission spectrometry with radial view configuration (ICP–OES) after microwave-assisted digestion under high pressure in a closed vessel. The original carbon concentration in the samples was determined by elemental analysis. The highest amount of original carbon content (64%) was found in viscera. After digestion, up to 75% of it was destroyed. Viscera presented the highest ether extract and blood exhibited a high crude protein content of up to 99%. The efficiency in destroying the organic matter in biological materials seemed to be related to their fat content and showed no significant difficulty for protein-rich samples. The correlation coefficient between the fat content of the samples and the residual carbon after acid decomposition was 0.9173 indicating a fair fit. However, no correlation was observed between % RC and the protein content.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Electronic Publication
Rights and permissions
About this article
Cite this article
Carrilho, E.V., Nogueira, A.A., Nóbrega, J.A. et al. An attempt to correlate fat and protein content of biological samples with residual carbon after microwave-assisted digestion. Fresenius J Anal Chem 371, 536–540 (2001). https://doi.org/10.1007/s002160101029
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s002160101029