Sentence examples for feed matrices from inspiring English sources
For this purpose, novel methods have been developed to analyse the interactions of pathogens and food and feed matrices at cellular and molecular levels as well as contact surfaces in the food chain, including the intestinal tract of farm animals.
In this study, the repeatability and in-house reproducibility were calculated using samples of different feed matrices and including GMO percentages between 0.1% and 100% (Electronic supplementary material, Table S 1).
The non-target microorganisms to test the exclusivity were chosen among taxonomically closely related (e.g. other Bacillus species) and not closely related (pathogenic or not) bacteria that can be present in the environment and in food and feed matrices [ 26].
Cervino et al. [ 7], using deuterated aflatoxin B2 for their IDMS assay, reported a relative interassay precision of 12%% for AFB1 at a level of 4.2 ng/g (NIST SRM 2387, peanut butter), and Li et al. [ 8] 7–11 % for AFB1 spiked at a level of 4 ng/g to various feed matrices.
The current study was designed to investigate and optimize extrusion conditions for reducing bacterial counts in a surrogate feed matrix.
Spores of B. stearothermophilus 12980 inoculated into a surrogate feed matrix consisting of 600 g maize meal/kg, 300 g soya bean meal/kg and 100 g animal protein blend/kg, respectively, was used to investigate the effect of three extrusion variables on microbial killing.
Because the moderate stringency condition (T = 83 °C, Mc = 285 g/kg and Rt = 7 s) completely eliminated detectable S. typhimurium in the test feed matrix, it would appear that all S. typhimurium cells and all mesophilic organisms of similar thermal tolerance would be eliminated at most extruder conditions within the central composite design region.
The worst combination was Wizard extraction from a feed matrix (five out of six samples inhibited).
Samples included grains of soybean and maize and animal feed containing either soybean or maize, and processed food samples of soybean milk and tortilla chips as examples of food and feed matrixes.
Although the DNeasy isolation method used in this case normally provides high quality DNA from feed matrixes, in this case the results would be biased and would lead to overestimation of the RRS content.
The European Food Safety Authority has recommended that NMs in the food and feed area should ideally be characterized in five stages, i.e., as manufactured, as delivered for use in food or feed products, as present in the food and feed matrix, as used in toxicity testing, and as present in biological fluids and tissues (EFSA 2011).
