Lily storage and fresh-keeping

Lily, also known as night lily, Zhongpeng flower, garlic potato and so on, is a perennial root vegetable of Liliaceae, originating in the temperate regions of eastern Asia. China has a long history of planting lilies, among which Lanzhou in Gansu, Yixing in Jiangsu and Shaoyang in Hunan are all famous producing areas of lilies. Lily bulbs are composed of many fleshy scales, which are thick, nutritious and delicious, which can stimulate appetite, help digestion, clear heat and moisturize the lungs and relieve cough, so they are famous at home and abroad, and are exported to Japan, Malaysia, Singapore, Europe and the United States and other countries.

Storage characteristics

Lily is a storage-resistant vegetable with a dormant period of 3 months. Lily likes to be cool and dry, and it can adapt to a wide range of temperature. the optimum temperature for storage is 0 ±0.5 ℃, or at 5 ℃ 11 ℃. Lily is a skinless bulb, although it is easier to lose water than onion bulbs wrapped with dry film, but because each scale is covered with underwear, it can reduce water evaporation. Therefore, the lily storage requires a lower humidity environment, and the relative humidity is 75% and 80%. Lily can not bear the wind, but the scales turn red and dry when the wind blows after harvest. The newly dug bulbs are also not resistant to sunlight, and the scales are prone to discoloration and loss of water.

Harvest and post-harvest treatment

China is the country of origin of lilies, and the cultivated lilies mainly include Longya lily, Sichuan lily, lily lily and so on. Among them, Sichuan lily is of good quality and resistant to storage. Lily is generally harvested before and after the Beginning of Winter after a period of low temperature after the lily stem withered in autumn and winter. When harvesting, dig hole by hole in order, and remove the mud and fibrous root in time. Note that newly dug bulbs should not be blown in the sun to prevent discoloration or loss of water.

After harvesting, the lilies were transported to a cool place in time, and the fruit balls were spread evenly on the ground to spread out the heat in the field and reduce the temperature of the product. When spreading out, the height of the stack layer should be 2mur3 fruit balls to avoid heat in the middle. Pay attention to the drying time should not be too long to prevent the discoloration of scales.

The fruit balls used for storage should be white, large, fresh, spherical and round, with enlarged scales, no roots, no loose petals and no brown coke petals. Handle gently in the course of operation to avoid damaging the fruit ball.

Storage reference index

Storage temperature relative humidity freezing point storage life

5MUE 11 ℃ 65MUE 75% MU1 ℃ 3MUE 4 months

Storage method

Stratified storage method

Choose a shady room or warehouse, build a burial pit or use a basket (box), spread a layer of yellow sand at the bottom of the pit or basket (box) that has been exposed, dried and screened out impurities, about 20 cm thick, and then put it in the order of a layer of lily-layer sand, with sand at the top to keep the lilies from being exposed to the air. Lily buried in the sand can play the role of spontaneous atmosphere control to reduce nutrient loss and maintain a certain degree of humidity. During the storage of lilies, it is necessary to prevent fever in the heap. During storage, spot checks should be conducted every 20 seconds and 30 days, and a small pile should be checked first. If there is something wrong with the product, continue to check, and then cover it with sand if the product is in good condition. If the yellow sand is too wet, replace it in time. Keep the storage temperature of 5 ℃ 11 min during storage, which can be stored until March of the following year.

Film bag storage method

The lilies were sealed and packed with 0.03mi 0.04mm thick moisture permeable film bags, each 4ml 5kg, and then put into the basket (box) or placed on the storage rack. During storage, the storage temperature was controlled at 0 ℃, and the relative humidity was maintained at 65%. 75%. By using this method, the lily has the advantages of long preservation time, small weight loss, good appearance and quality. With this method, it can be stored until the following spring.