The importance of the bag you know
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Various types of food, including food, in addition to other than the existence of biological and non-biological damage possibilities, there is also suffering from natural
insect and rodent damage and risk of loss on the Earth's surface per square kilometer of area there are about 1 x14 insect. According to incomplete statistics, the world's annual production
of food (including food grains), insects and rodents suffered damage and loss of about 25%. Therefore, the natural enemies to fight to regain this loss of food for the benefit of the people,
is one of the main tasks of packaging and preservation.
Many stock foods such as cereals, dried fruits and vegetables, nuts, ignorant tone material, cocoa, coffee and tea, because of its water content is low enough to rule out the
possibility of mold growth, not prone to rot, longer shelf life . However, these foods are very vulnerable to all kinds of insects and rodents (such as rodents) invasion and destruction, and
that the extent of the destruction is difficult to estimate. This loss in tropical and temperate regions is particularly serious because the natural conditions in these areas. (Temperature
and humidity species) insects to survive and reproduce and create good conditions. Most parts of China belong to the temperate and subtropical pest control packaging and food preservation
work, the more important economic significance. Generally, in warm climates, food pest losses of up to 20 --- 25% of total production, is the most damaging insect moth and beetle (except
rodents). In addition to these two insects outside the door of course, there are many insects that destroy the ability to create the door can not be ignored, its habits are quite
different.