Application of nitrogen-fixing blue-green algae to storage and preservation of fruits and vegetables

A nitrogen-fixing cyanobacteria, storage and preservation technology, applied in the fields of application, fruit and vegetable preservation, food preservation, etc., can solve the problems of high cost, heavy workload, and the need for regular opening and turning, and achieve low cost, safe storage and preservation, and saving storage cost effect

Inactive Publication Date: 2019-01-18
卢梅雅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, biogas storage also has many disadvantages. For example, the existing methods of biogas storage are to stack apples directly in a storage room, seal the door gap with adhesive tape or other sealing materials, and then fill the storage room with biogas quantitatively, and It is necessary to open the room regularly to turn the apples and ventilate them; it is necessary to build a biogas digester and a relatively sealed storage room, and it also needs to be checked and ventilated regularly. Not only is the cost relatively high, but also the workload is very heavy. Maintenance is also a big project

Method used

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  • Application of nitrogen-fixing blue-green algae to storage and preservation of fruits and vegetables
  • Application of nitrogen-fixing blue-green algae to storage and preservation of fruits and vegetables
  • Application of nitrogen-fixing blue-green algae to storage and preservation of fruits and vegetables

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Nitrogen-fixing Anabaena 119 (provided by Wuhan Institute of Hydrobiology, Chinese Academy of Sciences) was inoculated in BG11 nitrogen-deficient medium, and cultivated at 28°C, 150r / min, light of 60000-80000lx, and light-dark cycle of 12h-12h. After 7 days, the seed liquid was obtained; then, the seed liquid was poured into the small pond set in the greenhouse for large-scale expansion cultivation, and the temperature in the greenhouse was kept at about 30-35°C; after 5 days of expansion cultivation, the nitrogen-fixing Anabaena was collected; Finally, press filtration to remove most of the water to obtain wet algae with a water content of 40-60%; then spread the wet algae on a tray and place them in an oven at 35°C until the water content drops to 8-10% to obtain Dried algae; dry the dried algae in a cool and dry environment for later use.

[0038] Crush the corn stalks and set aside.

[0039] Such as figure 1 Shown, dig deep pit 1 at selected storage point, it is a...

Embodiment 2

[0055] Adopt the same method as Example 1 to store persimmons, but the composition of the fermentation feed liquid is replaced by: 8 kg of dried algae and 2 kg of corn stalks are mixed and poured into a deep pit, and inoculated with the activated sludge taken out from the biogas fermentation tank, The inoculum size is 8kg, and 15L of water is added, stirred with a long fork, and mixed evenly.

[0056] The present embodiment stores 158 persimmon fruits altogether.

Embodiment 3

[0058] Use the same method as in Example 1 to store persimmons, but the composition of the fermentation feed liquid is replaced by: 10 kg of dried algae and 3.5 kg of corn stalks are mixed and poured into a deep pit, and inoculated with the activated sludge taken out from the biogas fermentation tank , the inoculum size is 10kg, and 20L of water is added, stirred with a long fork, and mixed evenly.

[0059] The present embodiment stores 152 persimmon fruits altogether.

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Abstract

The invention discloses an application of nitrogen-fixing blue-green algae to storage and preservation of fruits and vegetables. The application comprises the following steps: (1) a pit is dug at a selected storage point, and concrete is poured to the pit bottom to prevent water leakage; (2) a fermentation substrate is poured into the pit and inoculated to a biogas fermented activated sludge for fermentation, and preservation gas is released, wherein the fermentation substrate comprises pre-collected nitrogen-fixing blue-green algae; (3) a fruit and vegetable storage device is arranged on an upper layer of the pit, to-be-stored fruits and vegetables are placed into the fruit and vegetable storage device, and a pit opening is sealed. According to the storage method, construction of a biogasdigester and a storage chamber is not needed, and only one pit is dug; the nitrogen-fixing blue-green algae serve as a fermentation raw material, one new approach is provided for recycling of the nitrogen-fixing blue-green algae, the raw material is convenient to obtain, and storage cost is reduced greatly; the storage effect is good, and the fruit and vegetable preservation efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of fruit and vegetable storage and preservation, and in particular relates to the application of nitrogen-fixing cyanobacteria in the storage and preservation of fruits and vegetables. Background technique [0002] As people's requirements for quality of life gradually increase, how to keep fruits and vegetables fresh for a long period of time is a problem that many farmers have to consider. Once the picked melons and fruits are unsalable, if effective fresh-keeping methods are not adopted, it will bring great losses to the production and life of farmers. [0003] In the vast rural areas, the first fresh-keeping method that people think of is to put them in cold storage, but the production cost and use cost of cold storage are too high to be suitable for large-scale promotion. Some people think of using biogas to store fresh apples. The principle of biogas storage apples is to use the characteristics of hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/154A23B7/155
CPCA23B7/154A23B7/155
Inventor 卢梅雅
Owner 卢梅雅
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