Trending Products Commercial Pool Heating Pump - Freezer – Sunvi
Trending Products Commercial Pool Heating Pump - Freezer – Sunvi Detail:
Storage and preservation, or fresh storage, is the main content of preservation, that is, to maintain the original quality and freshness of some agricultural products for a long time, that is, fresh agricultural products. After a period of storage, they are still fresh or near the fresh state and quality when they are just harvested.
The relationship between temperature and fresh-keeping and storage of agricultural products: after harvesting, agricultural products are still a living body. In order to maintain their life during storage, they must constantly consume their own storage nutrients, thus gradually losing their nutritional value and fresh quality. In addition, insect pests also use stored nutrients of agricultural products as delicacies, resulting in spoilage of agricultural products, loss of freshness and edible value. Temperature is the most important factor affecting the quality and nutrition of agricultural products in vivo after harvesting. Generally speaking, the lower the temperature, the less nutrient consumption of the product, the lower the degree of damage to pests and diseases, and the longer the time to maintain fresh quality. At the same time, the smaller the temperature change, the better the fresh-keeping effect. Fresh-keeping temperature is not unlimited low, because when the temperature is too low to endure, there will also be chilling injury or freezing injury. Therefore, preservation and storage require a relatively stable suitable low temperature conditions. The optimum preservation temperature for most agricultural products is about 0 C.
The optimum temperature for preservation and storage of agricultural products: the temperature varies with the seasons and the time of the day in a year. The temperature of most agricultural products is higher in the season of conventional cultivation and harvesting, and it varies greatly day and night, so it is extremely unsuitable for preservation and storage of agricultural products. Many simple ways are to find a place where the natural temperature is relatively low and stable to store agricultural products, to prolong the shelf life of products, such as caves, cellars, shade, etc. These methods can not arbitrarily control the temperature, the effect of preservation is poor, and the shelf life is relatively short. The final solution is to manually manufacture a relatively stable low temperature condition, that is, through mechanical equipment and electronic instruments, the temperature can be controlled artificially within a certain range. Common cold storage is such a facility.
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By Maggie from Liberia - 2016.01.28 18:53
This company has a lot of ready-made options to choose and also could custom new program according to our demand, which is very nice to meet our needs.
By Louis from Chicago - 2015.06.05 13:10