How to store fresh corn at room temperature

The tender corn makes consumers enjoy it with its delicious flavor and special taste. Nowadays, this kind of natural snack, which was originally only available after the autumn harvest, will often appear in food stalls and beer houses in some towns in other seasons. Although it is expensive, it is very appetizing. This kind of off-season tender corn is mostly preserved by normal temperature storage technology. Using this technology to store sweet corn, overcome the deficiencies of the freezing method, its processing cost is low, can be safely stored for more than six months, the product's flavor, taste, color and harvest just the same, can increase the efficiency of 2 to 3 times.
The varieties that are suitable for preservation are: 1 red pomegranate seed crystal corn. This type of color red blood, early coloring, because it can be fully red when fresh, so it is one of the best varieties to keep fresh or sell tender corn. Crystal red corn not only attractive color, but also sweet taste, thin skin, fresh food without residue. 2 colorful sticky corn. Colorful sticky corn has a bright color with various colors such as black, white, red, purple, yellow, green and blue. It is not only sweet, fresh and fragrant, but also attractive color. This variety is unique among special corns and has great development potential. It can be used as a dual-season plantation for tender corn in most parts of the country. 3 Black Lord. This variety has changed the history of black corn ear to become a high-yield and high-quality variety with the largest panicle type and the best quality in black corn. The ready-to-eat black corn ear processed with this variety is delicious, rich in nutrition and rich in anti-cancer substances, melanin, which is very beneficial to the human body. The black tyrant's grain is purple-black when fresh, which is very suitable for fresh storage. At present, the commonly used room temperature storage and preservation technologies mainly include the following types:
1. The dry storage method will leave the old corn kernels with moderate and full kernels to retain 1 to 2 layers of endothelium. It is advisable to expose the kernels without putting them into the water. The mass fraction of 0.5% glycyrrhizin aqueous solution is immersed for 5 min to 10 min. Drain and drain the water. If the temperature during harvest is higher than 18°C, a layer of corn ear and a layer of fine sand storage method can be adopted to solve the problem of heat and mildew of tender corn through the endothermic action of fine sand. If the tender corn harvested in late autumn can be directly stored in a room with good air circulation and no direct sunlight, a 30cm to 40cm high airway can be made on the ground with bricks before storage, and then the treated corn ear can be placed on the ground. Above can be. It is worth noting that the ear of corn harvested on that day must be processed and stored on the same day to prevent dehydration, dryness and aging of the grain by the action of enzymes. Glycosan is a kind of white crystalline powder prepared by acid hydrolysis of edible plants such as Ganzi and seaweed. Its aqueous solution has various effects such as insect repellent and antiseptic, which can effectively prolong the preservation period of fruits and vegetables at room temperature. The method for preparing the polysaccharide solution is to first dissolve the polysaccharide in water, prepare a water solution with a mass fraction of 5%, and add the solution with boiling water to a 0.5% mass aqueous solution.
2. Wet storage method (1) Formulation 1 Preservation solution formula 1: calcium chloride 60%, zinc chloride 15%, potassium sorbate 15%, magnesium sulfate 5%, sodium 5% sodium, water 250 times diluted. First, formulate the amount of calcium chloride, zinc chloride, magnesium sulfate dissolved in water heated to boiling, let cool and then add potassium sorbate and vitamin sodium, stir evenly after the corn preservation solution. 2 Preservative formula 2: sodium benzoate 0.1%, organic acid 0.2%, inositol hexaphosphate 0.1%, vitamin C, 0.1%, water 99.5%.
(2) Operation points Select kernels that have just been full and not hardened, no pests, no rot, and the heads of stamens are not dry, that is, 7-8 ripe corns as raw materials, remove the loquat leaves, stamens, rinse with clean water, and then Soak it in the preservation solution.
Preservation with this method should be noted: The tender corn must be processed after the end of the day, should not delay; preserving the amount of liquid is not suitable for corn, usually the quality ratio of preservative and tender corn is 2:3; corn storage containers can be Use plastic buckets, large cylinders, or concrete pools. Wash them before use and sterilize them. Rinse water should use clean tap water that is free from pollution. Fresh-keeping ingredients in fresh-keeping liquids must use food grades. If a variety of flavorful food flavoring agents are added to the preservative solution, it can be processed into fruit-flavored fresh-keeping corn with different flavors, which will result in a higher profit. The method of preservation of corn, generally operating in the late summer and early autumn, the best sales before and after the Spring Festival, the soaking solution can be rinsed clean before listing.
The treated corn ear can also be put into a cylinder or a tank, and an appropriate amount of cold boiled water is injected, and phytic acid with a mass fraction of 0.5% and sorbic acid with a mass fraction of 0.3% are added, and the plastic cylinder is used to fasten the cylinder mouth or Cover the pool cover and change the water once a week. This method can also keep corn fresh until early winter.
3. Coating method (1) Process tender corn → cleaning → surface sterilization → cleaning → coating → storage.
(2) Coat solution Prepare the film preservation liquid formula: 0.2% inositol hexaphosphate complex solution, 1% GM film former, 0.2% sodium benzoate, 0.1% sucrose ester, 99.4% water, and pH 4. Dissolve several ingredients in clean and uncontaminated water and stir them evenly. Adjust the pH value to the specified range. Serve as a film preservation solution.
(3) Operational points The first step is to use an oxidizing biocide for surface sterilization. The coating can be dip, coated, sprayed, or any other method. Soaking is immersing the tender corn in the pre-dosed liquid. The coating is to use a soft fine-bristled brush to brush the coating liquid on the surface of the tender corn ear. Spraying is to spray the coating liquid evenly with a common sprayer. Yu Sui. The tender ear after coating should be dried naturally or blown with a fan and stored in a cool house or cellar. Storage of tender ears of corn in houses or cellars should be strictly sterilized before use. Sterilization methods can be used to fumigate special warehouse fumigants.
4. Semi-mature and semi-dry storage method In a large pot filled with half a pot of water, add corn preservatives, formulated with a mass fraction of 0.4% to 0.5% of the aqueous solution, heated and boiled, and then turn the leafhopper to the end of the ear The tender corn ear was put into a pot and boiled for 5 minutes to 7 minutes. When the grains have become yellowish and half-cooked, remove them and put them in a jar containing 0.4% mass of preservative solution. When the grains are cold and not hot, remove them, drain the water, and put it in the sun until it is half dry. It can also be baked in a dryer at 80°C to make it semi-dry. The room is stored in a room that is airtight, light-proof and free of rodents. On the ground, use a new brick wall to create a ventilated wall of 25cm to 30cm, apply appropriate amount of lime, and use 2g/m3 of sulfur for fumigation. Then, put the dried corn ear into the basket or woven bag and put it into the room for stacking. When tenderized and rejuvenated for sale or consumption, first clean the corn ear with clean water, and then soak it in the water added with the appropriate amount of sweetener and corn cob spice. Dip until the nails can break through the grains, remove and put them into the pan. When cooked, the hot ear of corn will be restored and ready for consumption or marketed.
Author unit: College of Agriculture, Liaocheng University

Pumpkin Seeds

Pumpkin Seeds,Edible Pumpkin Seeds,Toy Pumpkin Seeds,Rootstock Pumpkin Seeds

Ningxia Zhongqing Agricultural Technology Co. Ltd. , http://www.zq-vegetableseeds.com