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Treatment method of corn preservation

A processing method and technology of corn, which can be applied in the direction of preservation of seeds with coating protective layer, food ingredients as antimicrobial preservation, food ingredients containing natural extracts, etc., which can solve the problems of corn prone to mildew and corn germ dehydration Reduce shrinkage and other problems, achieve the effect of reducing the release of ethylene, stabilizing biofilm, and inhibiting the aging process

Inactive Publication Date: 2018-04-27
张静
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a treatment method for corn preservation in view of the problems that mildew is prone to occur in the current corn storage and transportation process, and the surface of corn embryos will shrink due to water loss

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0029] Pretreatment of wrinkled papaya: remove seeds from fresh wrinkled papaya, dry at 50° C., grind and pulverize, pass through a 40-mesh sieve, and collect sieved particles.

[0030] SiOx specification: 10nm, specific surface area is 590m 2 / g.

[0031] A processing method for corn preservation, comprising the steps of:

[0032] (1) Take the pretreated wrinkled papaya and add diethyl ether at a mass ratio of 3:10, reflux for 3 hours, filter with suction, take solid powder, add distilled water at a mass ratio of 1:10, extract twice at 30°C, filter, and concentrate under reduced pressure , take the decompressed concentrated solution, add 95% ethanol solution at a mass ratio of 1:5, filter with suction, and wash with 95% ethanol solution, acetone, and ether for 3 times to obtain a crude extract. The crude extract is mixed with chloroform and n-butanol according to the mass ratio of 9:4:1, stirred for 20 minutes, centrifuged at 4000r / min for 20 minutes, and the supernatant wa...

example 2

[0037] Pretreatment of wrinkled papaya: remove seeds from fresh wrinkled papaya, dry at 60° C., grind and pulverize, pass through a 40-mesh sieve, and collect sieved particles.

[0038] SiOx specification: 15nm, specific surface area is 690m 2 / g.

[0039] A processing method for corn preservation, comprising the steps of:

[0040] (1) Take the pretreated wrinkled papaya and add diethyl ether at a mass ratio of 3:10, reflux for 4 hours, filter with suction, take solid powder, add distilled water at a mass ratio of 1:10, extract 3 times at 40°C, filter, and concentrate under reduced pressure , take the decompressed concentrated solution, add 95% ethanol solution according to the mass ratio of 1:5, filter with suction, and wash 4 times with 95% ethanol solution, acetone, and ether respectively to obtain a crude extract. The crude extract was mixed with chloroform and n-butanol at a mass ratio of 9:4:1, stirred for 20 minutes, centrifuged at a speed of 4000r / min for 20 minutes,...

example 3

[0045] Pretreatment of wrinkled papaya: remove seeds from fresh wrinkled papaya, dry at 55° C., grind and pulverize, pass through a 40-mesh sieve, and collect sieved particles.

[0046] SiOx specification: 12.5nm, specific surface area is 640m 2 / g.

[0047] A processing method for corn preservation, comprising the steps of:

[0048] (1) Take the pretreated wrinkled papaya and add diethyl ether at a mass ratio of 3:10, reflux for 3.5 hours, filter with suction, take solid powder, add distilled water at a mass ratio of 1:10, extract twice at 35°C, filter, and decompress Concentrate, take the concentrated solution under reduced pressure, add 95% ethanol solution at a mass ratio of 1:5, filter with suction, wash with 95% ethanol solution, acetone, and ether for 3 times, respectively, to obtain a crude extract. The crude extract was mixed with chloroform and n-butanol at a mass ratio of 9:4:1, stirred for 20 minutes, centrifuged at a speed of 4000r / min for 20 minutes, and the su...

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Abstract

The invention discloses a treatment method of corn preservation, and belongs to the technical field of foodstuff processing. An antiseptic for inhibiting toxin generated in a corn storage and transport process, a fresh-keeping additive for preventing dehydration and shrinkage of corn as well as gel liquid for forming a film on the surface of corn which are compounded, in order to form a film on the surface of the corn and a hydrophobic molecular film; molecules in chitosan exist hydroxy and amino, the groups participate various reactions, SiOx and monoglyceride are used for modifying the chitosan solution, and water-retention rate of the chitosan composite film is improved, permeability is improved; on one hand, effective components for fresh-keeping and antisepsis of corn are preserved, and on the other hand a film for water retention and ventilation is formed on the surface of corn, in order to guarantee smoothing of the corn surface. The method solves the problems in the prior art that corn is easy to mildew in the storage and transport process, and shrinkage is easy to happen on the surface of maize embryos.

Description

technical field [0001] The invention belongs to the technical field of food processing, in particular to a processing method for corn preservation. Background technique [0002] Corn (Latin name: Zea mays L.) is an annual herbaceous plant of the Poaceae Zea genus. Alias: corn, stick, corn, corn, millet, corn, corn, pearl rice, bract reed, big miliary millet, it is called pearl grain in Northeast Liaoning dialect, barley kernel in Chaozhou dialect, corn in Cantonese, and fan in Hokkien dialect. wheat. Maize is an annual monoecious cross-pollinated plant with tall plants and strong stems. It is an important food crop and feed crop. It is also the crop with the highest total output in the world. Its planting area and total output are second only to rice and wheat. In my country, it has developed into the largest economic crop. Therefore, paying attention to and ensuring the quality and yield of corn crop production is of great significance to food security and economic deve...

Claims

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Application Information

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IPC IPC(8): A23B9/14
CPCA23B9/14A23V2002/00A23V2200/10A23V2250/21A23V2250/511A23V2250/022A23V2250/1628A23V2250/192A23V2250/1582A23V2250/1614A23V2200/212A23V2250/1578A23V2250/6406A23V2250/708A23V2250/032
Inventor 张静郑微程依
Owner 张静
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