Views: 225 Author: Hedy Publish Time: 2023-07-18 Origin: Site
Farmers put forth a lot of effort collecting fruits and vegetables, but crop management makes it much more difficult for them to get food from the field to customers' plates. Maintaining a good nutrition level is critical; the strategy for doing so is to keep fruits and vegetables fresh at low temperatures, which is a difficult operation given the wide supply chain.Every time this creates contamination of these fruits and vegetables, it becomes more difficult to keep the temperature down, particularly in poor countries. similar occurrences The most conventional and efficient method of reducing water content in food to avoid microbial food degradation is drying.The terms drying, dehydrating, and dewatering are all used interchangeably. However, the amount of water evaporated allows them to be distinguished. Food dries as water vapor from its surface is evacuated into the surrounding air, leaving a mostly dried version of the food behind.During the dewatering process, water is drained or squeezed out of the material. Water, on the other hand, evaporates from the raw material's surface first (external diffusion), then from its interior surface (internal diffusion) during dehydration.
The shelf with dry foods was larger than the one without. The emphasis on dehydrating agricultural goods has resulted in the development of improved drying, dewatering, and dehydrating equipment that produces high-quality dried fruits and vegetables.Food safety has long been a key business issue, but as the world's population grows and arable land becomes scarcer, it is more critical than ever. Drying is an important aspect of the economy since it keeps food goods viable for extended periods of time.
The object to be dried is placed inside a container that is sealed off to vent air and decrease pressure while using vacuum pumps to increase the water vapor partial pressure difference. While vacuum technology was being developed, freeze-drying was utilized to dry a variety of items.Because vacuum dryers lack internal air, the only absolute pressure that can be generated is water pressure.