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The Grain Inspection, Packers and Stockyards Administration (GIPSA) was an agency of the United States Department of Agriculture that facilitates the marketing of livestock, poultry, meat, cereals, oilseeds, and related agricultural products, and promotes fair and competitive trading practices for the overall benefit of consumers and American agriculture.
With the falling number test, so-called weather or sprout damaged wheat or rye, which adversely affects bread-making quality, could be detected at the grain silo intake within a few minutes. Sprouting or pre-harvest germination is caused by damp or rainy weather conditions during the final stage of maturation of the crop.
The United States Grain Standards Act (USGSA) of 1916 (P.L. 64-190), as amended (7 U.S.C. 71 et seq.), authorizes the Grain Inspection, Packers and Stockyards Administration to establish official marketing standards (not health and safety standards) for grains and oilseeds, and requires that exported grains and oilseeds be officially weighed and inspected.
In agriculture, grain quality depends on the use of the grain.In ethanol production, the chemical composition of grain such as starch content is important, in food and feed manufacturing, properties such as protein, oil and sugar are significant, in the milling industry, soundness is the most important factor to consider when it comes to the quality of grain.
Grain damage is any degradation in the quality of grain. In the current grain trade , this damage can affect price, feed quality, food product quality, and susceptibility to pest contamination. Between the field and the end use, grain may go through any number of handling operations which can each contribute to grain damage.
A sieve analysis (or gradation test) is a practice or procedure used in geology, civil engineering, [1] and chemical engineering [2] to assess the particle size distribution (also called gradation) of a granular material by allowing the material to pass through a series of sieves of progressively smaller mesh size and weighing the amount of material that is stopped by each sieve as a fraction ...
In reverse grading or inverse grading the bed coarsens upwards. This type of grading is relatively uncommon but is characteristic of sediments deposited by grain flow and debris flow. [2] A favored explanation for reverse grading in these processes is kinetic sieving. [3] It is also observed in aeolian processes, such as in pyroclastic fall ...
Food grading involves the inspection, assessment and sorting of various foods regarding quality, freshness, legal conformity and market value. [1] [2] Food grading is often done by hand, in which foods are assessed and sorted. [1] [2] Machinery is also used to grade foods, and may involve sorting products by size, shape and quality.