Statistical methods for estimating natural mass loss food

Abstract

The problems of necessity of selection and application of mathematical-statistical methods and their quantitative estimation, which is necessary for deciding on the possibility of their use in the problems of quality management during storage of vegetable products, are considered.
Natural loss of mass occurs at all stages of the movement of goods and is an important part of quantitative losses during storage, transportation, loading and unloading operations, implementation The main causes of natural mass loss are: drying or evaporation of water; breathing (only for products related to living objects); spraying and shaking; crumbs formed from the sale of goods (except plain and caramelized caramel); bottling; removal of volatile fraction of substances; impregnation due to absorption of the liquid fraction of products by packaging, packaging materials. Given a sufficiently homogeneous population, the sample items are typical instances. Batches of potatoes, vegetables and fruits consist of physiologically heterogeneous samples, and this heterogeneity is sometimes difficult to detect on an external basis due to the lack of objective criteria for the types of products of different cultures. In this case, the selection is made according to the principle of random selection, according to which all elements of a random population have equal opportunities to be selected and the choice is made to chance It has been established that during storage of potatoes in stacks, the natural losses depend on the level of the tiers of the containers. The smallest weight loss in the first tier of the pile. As the height of the stack increases, the weight loss increases. In order to accurately measure the weight loss of the potato netting to control the actual conservation of potatoes, including natural losses, it is necessary to lay in all horizontal rows of different levels (tiers) of container The measurements made allow us to determine what the sample volume should be in order to provide the exacting accuracy of estimating the natural mass loss.