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Food moisture analysis is the determination of the concentration of water in a food sample. A variety of techniques may be used including Karl Fischer titration and loss on drying. Many technical standards exist which define test methods for determining moisture in different types of food.
It was founded in 1884 as the Association of Official Agricultural Chemists (AOAC) and became AOAC International in 1991. It publishes standardized, chemical analysis methods designed to increase confidence in the results of chemical and microbiological analyses. Government agencies and civil organizations often require that laboratories use ...
protein by analysis of total nitrogen, either by Dumas or Kjeldahl methods; total fat, traditionally by a solvent extraction, but often now by secondary methods such as NMR; crude ash (total inorganic matter) by combustion at 550 °C; estimated dietary fibre by various AOAC methods such as 985.29
Proximates are used in the analysis of biological materials as a decomposition of a human-consumable good into its major constituents. They are a good approximation of the contents of packaged comestible goods and serve as a cost-effective and easy verification of nutritional panels. This means that testing can be used to verify lots, but ...
The Kjeldahl method is poorly sensitive in the original version. Other detection methods have been used to quantify NH 4 + after mineralisation and distillation, achieving improved sensitivity: in-line generator of hydride coupled to a plasma atomic emission spectrometer (ICP-AES-HG, 10–25 mg/L), [10] potentiometric titration (>0.1 mg of ...
A crucible and tongs, on a green mat. The ash content of a sample is a measure of the amount of inorganic noncombustible material it contains. The residues after a sample is completely burnt - in contrast to the ash remaining after incomplete combustion - typically consist of oxides of the inorganic elements present in the original sample.
Paolo Banchero enjoyed the first 50-point game of his career on Monday. Three days later, it's unclear when the Orlando Magic star will play again. Banchero has been diagnosed with a torn right ...
The Journal of AOAC International is a peer-reviewed scientific journal publishing research articles in the field of analytical chemistry and microbiology covering basic and applied research in analytical sciences related to foods, drugs, agriculture, the environment, and more. [1]