First, the selection of resistant collection species generally considers late-maturing varieties more resistant than early maturing varieties, crack-resistant varieties resistant to hiding, and small fruit-type varieties or large fruit-type looser varieties that are resistant to hiding. In the main cultivars, the most resistant to ursium, jujube, jujube and winter jujube, the longest storage period can reach 120 days.
2. Applicable to correct harvesting production: According to the degree of redness of the jujube fruit surface, it can be divided into three levels of full red (100% coloring), semi-red (about 50% coloring), and early red (coloring below 25%). . Jujube fruit used for storage should be harvested in the semi-red period, so that both the storage resistance and the quality are taken into account. The stored jujube fruit should be picked manually, and picking, shaking and other picking methods are strictly forbidden, and the picking should be preserved. Due to the long flowering date of the jujube, the results are sooner or later, so the ripening period is also early or late. Picking should be carried out in batches according to the requirements, so that the jujube ripening degree is the same for each harvest.
Third, the preservation of fresh jujube on the requirements of environmental conditions Fresh jujube suitable storage temperature is 0.5 °C - 0 °C. As fresh jujube fruit has less waxy layer on the surface and poor water retention performance, the water loss rate of fresh jujube at room temperature is 5-7 times that of apple, and the fruit with lower maturity is faster, so the storage environment is maintained. More than 90% of relative humidity is particularly important for the storage of fresh jujube.
Fourth, storage methods
1. Refrigerated bags can be stored in bags such as perforated bags, cartons, wooden boxes, and plastic turnover boxes. The specific approach is: the harvested fresh dates are selected and placed in a cold storage pre-cooled for 1-2 hours, and then loaded into 0.01-0.02 mm thick non-toxic polyvinyl chloride or polyethylene film bags, each bag If the fruit does not exceed 2.5 kg, two small holes with a diameter of about 1 cm are to be punched on both sides of the middle of the bag (which is accurate and easy to burn with a cigarette butt), and then placed in a multi-layer storage rack. When using the box lined storage bag method, it is best to use 0.03 mm thick non-toxic PVC film, each box is not more than 10 kilograms, after the fruit is installed, the bag mouth can not be sealed, and the cover can be folded. Before the mouth is covered, the mouth should be fully pre-cooled and stored until the fruit temperature falls close to the storage temperature. The fruit boxes should be stacked in the form of "goods", and ventilation ducts should be left between the boxes. It is better to pretreat the fruit before storage. Use 2% CaCl 3 30 mg/kg GA to dip fruit for 30 minutes to improve the fruit storage effect. The soaked fruit should be dried immediately and then bagged and stored. .
2. Atmosphere storage of preserved fresh dates should be controlled at a temperature of 1 to 0°C, relative humidity of 95%, oxygen of 3% to 5%, and carbon dioxide of less than 2%. Air-conditioned storage of jujube fruit before the storage application of fruit preservation agent (Shanxi Academy of Agricultural Products Storage and Research Institute). The application of modified atmosphere storage can store 3.5 to 4 months of Wuxiezao, Jujube, Jujube jujube, Jujube, Dongzao, Dazao jujube, etc., Jinsixiaozao, Zanhuangdazao, Lizao Such as storage 2 - 3 months, the rate of more than 70% crisp fruit.
The chicken claw is compact and elastic, the chicken claw has high nutritional value and contains the calcium and collagen protein needed by the human body. I especially like eating food with bones, the meat on the side of the bone is special, and the chicken claw is one of my favorites. The practice of Chicken Feet is also diversified. Today, we recommend a delicious chicken claw with a special aroma.
The nutrition value of chicken claw is very high, contain rich calcium and collagen protein, eat more not only can soften blood vessel, have beauty effect at the same time. Japanese researchers have found that chicken feet contain four protein components that can effectively inhibit high blood pressure. 1. Remove fat and blood pressure: can soften and protect blood vessels, and reduce the blood lipid and cholesterol in the body. 2. Skin care: enhance the skin tone and eliminate wrinkles.
The nutrition value of chicken claw is very high, contain rich calcium and collagen protein, proper intake not only can soften blood vessel, have beauty effect at the same time, the general population is edible. The chicken claw, the muscle, the gum is large. It is often used for cooking soup and also for halogen and sauce. For example: chicken feet, chicken feet. The thick and rich texture can also be cooked and removed from the bone, such as: the chicken with pepper and the broken bones, both crisp and delicious.
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