The Analysis of Wheat Bulk Density and the Degree of Grain Refinement in Maize and Wheat

Wheat's metrics are referenced in national standards by volume weight values, while imprecise granules and other indicators are wheat quality limit indicators, which play a very important role in the judgment of their quality levels in the acquisition process. In general, the sample with full maturity, compact structure, small particles, and low water content has higher bulk density; conversely, the bulk density is smaller. The bulk density of wheat is also affected by the imperfection of its grain size, which requires the use of corn and wheat bulk density. Only after conducting research and analysis can the correct conclusion be made.

The determination of the bulk density requires taking about 1000 g of the sample from the average sample, and the mass of the imperfect particles to be prepared is too large. Therefore, the bulk density was determined using the LDS-1G Grain Moisture Analyzer in this test. And bulk wheat samples were subjected to bulk density measurement. The same samples were measured for bulk density using the LDS-1G Grain Moisture Analyzer. The volume weight values ​​measured by the two methods were analyzed to obtain the corrected values ​​of the bulk density measurement data. The national standard method was used to determine the average value of each sample after 3 times, and the grain moisture analyzer measured the average value after 5 times.

The mean value of the bulk density reduction of wheat after adding different types of imperfect grains showed that the bulk density of the sample showed a decreasing trend with the increase of imperfect grain types, and the bulk density decreased when the imperfect grain content reached 20%. In addition, the decrease in the bulk density of the sample added with gibberellic granules was much higher than that of samples with other types of imperfect grains, and the decrease in the bulk density of the sample with the addition of black embryos was not obvious.

Wheat imperfect grain content is an important index to evaluate wheat quality. By studying the effect of various types of imperfect grain content on bulk density, it was found that except for black embryo grains, the content of imperfect grains of various types has a greater impact on bulk density. However, the impact on bulk density and the reasons for the decrease in bulk density are different. Wheat broken grain content is linearly related to the bulk density. With the increase of wheat damaged grain content, the wheat bulk density decreases.

The effective analysis of the wheat's bulk density and its refined grain content using a maize-grain weight tester revealed that irregular shapes were formed after breakage of wheat, resulting in the same mass of broken grains occupying a larger volume than perfect grains and increasing the wheat's size. Porosity, so that the mass of wheat within the unit volume is reduced, resulting in lower bulk density. On the other hand, due to the different shape of damaged particles in the sample, the impact on the bulk density is also slightly different, the broken particles will generally occupy more The space, so that the weight decreased more. In contrast, the smaller broken particles occupy little space, and even some broken particles play a role in filling the perfect gap.

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