Introduction of long-term storage methods and temperature requirements of lotus root in cold storage
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Lotus root is a plant growing in the water. Once lotus leaves the water, the nutrition of lotus root will be slowly lost, and there will be dehydration, browning and microbial damage.
The use of cold storage storage will not be limited by natural conditions, can effectively inhibit the enzyme activity of microorganisms, kill all kinds of pathogenic microorganisms, but also can avoid the loss of water and nutrients of lotus root, delay tissue aging, so as to prolong the purpose of preservation and storage.Below, small make up to give you a detailed introduction of lotus root cold storage storage storage methods and storage temperature requirements.
1. Harvesting requirements
For better storage and preservation of lotus root,Lotus root should be harvested in cloudy days, avoid harvesting in strong sunlight, must be transported to a shady place to spreadIn order to avoid water loss by exposure to the sun.When harvesting, according to the position of the lotus root body, the soil around the lotus root body can be hollowed out by hand, and then the lotus rhizome will be broken down along the leaves, and the whole lotus root will be pulled out by hand.
2. Sorting and screening
After harvesting, the lotus root should be graded according to the size and thickness of the lotus root body. At the same time, the soil and other impurities should be removed. The damaged lotus root should be picked out and the lotus root node should be kept intact.
3. Precooling requirements
Precooling is a necessary part of lotus root storage. The main purpose of precooling is to reduce the respiratory intensity and metabolism of lotus root, which is more conducive to storage and preservation.It is suggested that the precooling temperature should be controlled at 5-10 ℃.
4. Storage temperature
The most suitable temperature for lotus root storage in cold storage is 5 ~ 8 ℃. It should be noted that the temperature in the storage should be stable. The safe storage temperature should be controlled at ± 1 ℃, and the fluctuation of storage temperature should not exceed 2 ℃.If the temperature fluctuates too much, it is easy to cause mould breeding and fruit decay.In order to prevent water loss of lotus root,The relative humidity of cold storage should be controlled at 90% ~ 95%If the humidity in the warehouse is insufficient, ordinary air humidifier or microwave air humidifier can be used for humidification to keep the humidity stable in the warehouse.
After 2 months of storage, the lotus root still keeps its appearance white and fresh, and the water and nutrients are not lost.