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Production process of wall-broken protein of blue-green algae

A production process and cyanobacteria technology, applied in the field of solid waste recycling, can solve the problems of air pollution and high energy consumption, and achieve the effect of realizing ecological circulation, reducing drying energy consumption, and highly unified environmental protection requirements.

Pending Publication Date: 2021-03-09
清正生态科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method not only consumes a lot of energy, but also requires deep dehydration and drying of blue-green algae with a water content of up to 95%. During the incineration process, organic matter will also produce dioxins and cause air pollution.

Method used

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  • Production process of wall-broken protein of blue-green algae
  • Production process of wall-broken protein of blue-green algae
  • Production process of wall-broken protein of blue-green algae

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Pump cyanobacteria and algae water (with a solid content of about 0.4%) from the lake into the MF-1000 type non-pharmaceutical algae water separation device, filter through a 5 μm organic membrane, and separate from the free water outside the cyanobacteria cells to obtain a solid content of 6.5%. Spirulina algae mud;

[0029] 2. Send the algae mud into the steam explosion machine, feed 1.8MPa saturated water vapor and hold the pressure for 6 minutes, complete the steam explosion, and obtain the broken cyanobacteria liquid protein; the algae toxin content is 292μg·Kg -1 Remove to 2.74μg·Kg -1 , the algae toxin removal rate is 99.0%;

[0030] 3. Send the exploded cyanobacteria liquid protein (7.7% solid content) into a film dryer for drying, and dry at different temperatures for a certain period of time to obtain dried cyanobacteria flakes with a water content of 10% to 12%.

[0031] Table 1

[0032]

Embodiment 2

[0034] 1. Pump cyanobacteria and algae water (with a solid content of about 0.4%) from the lake into the MF-1000 type non-chemical algae water separation device, filter through a 15 μm organic membrane, and separate from the free water outside the cyanobacteria cells to obtain a solid content of 5%. Spirulina algae mud;

[0035] 2. Send the algae mud into the membrane concentrator for further separation and concentration, so that the solid content rate is further increased to 20.4%;

[0036] 3. Send the cyanobacteria algae mud obtained in the previous step into the steam explosion machine, feed 1.8MPa saturated water vapor and keep the pressure for 6 minutes, and then complete the steam explosion within 0.008 seconds, and obtain the cyanobacteria liquid protein after the wall is broken. Toxin content from 292μg·Kg -1 Remove to 2.74μg·Kg -1 , the algae toxin removal rate is 99.0%;

[0037] 4. Send the exploded cyanobacteria liquid protein into a film dryer for drying, and dr...

Embodiment 3

[0042] 1. Pump cyanobacteria water (with a solid content of about 0.4%) from the lake into the MF-1000 type non-pharmaceutical algae water separation device, filter it through a 35 μm organic membrane, and get rid of the free water outside the cyanobacteria cells to obtain a solid content of 3.5%. Spirulina algae mud;

[0043] 2. Put the algae mud into the steam explosion machine, inject 1.4MPa saturated water vapor and hold the pressure for 4 minutes, complete the steam explosion, and obtain the cyanobacteria liquid protein after the wall is broken; the algae toxin content is 292μg·Kg -1 Remove to 62μg·Kg -1 , the removal rate of algae toxin is 78.8%;

[0044] 3. Send the exploded cyanobacteria liquid protein (4.4% solid content) into a film dryer for drying, and dry at different temperatures for a certain period of time to obtain dried cyanobacteria flakes with a water content of 10% to 12%.

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Abstract

The invention discloses a production process of wall-broken protein of blue-green algae. The production process comprises the following steps: 1) sucking a natural water body containing the blue-greenalgae into an algae-water separation device to carry out continuous physical separation to obtain blue-green algae mud, wherein the solid content of the discharged blue-green algae mud reaches 2% to12%; 2) conveying the obtained blue-green algae mud into an instantaneous ejection type steam explosion machine; introducing saturated steam and keeping the pressure for a period of time; instantly exploding blue-green algae cells in the instantaneous ejection type steam explosion machine so as to convert the blue-green algae mud into a soluble liquid-state substance; meanwhile, instantly coolingto 40-50 DEG C; carrying out steam explosion and wall breaking to obtain liquid-state blue-green algae protein; 3) conveying the obtained liquid-state blue-green algae protein into a thin film dryingmachine to be dried, wherein the drying temperature is 80-110 DEG C and the drying time is 15-300s; and 4) finally, sealing and packaging produced blue-green algae dried sheets. According to the process, algae toxin in the blue-green algae can be deeply removed; meanwhile, the blue-green algae protein is subjected to small molecule conversion and rapid dehydration, and finally, the wall-broken protein of the blue-green algae is produced.

Description

technical field [0001] The invention relates to a production process for detoxifying and breaking the wall of cyanobacteria by steam explosion and converting them into cyanobacteria protein, which belongs to the field of solid waste resource utilization. Background technique [0002] Cyanobacteria are large single-celled prokaryotes with a long evolutionary history, Gram-negative, no flagella, chlorophyll a, but no chloroplast (different from eukaryotic algae), and capable of oxygenic photosynthesis. A class of organic substances that are difficult to degrade. After being polluted by elements such as nitrogen and phosphorus, the "red tide" of seawater and the "bloom" of lakes that cause eutrophication have brought serious harm to the fishery and aquaculture industry and caused the deterioration of water quality. When the cyanobacteria cells die, they will release more toxic substances into the water, making the toxic cells in the water more deadly despite fewer numbers. Cy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/02C12N1/06C07K14/795C07K1/14
CPCC12N1/02C12N1/066C07K14/795
Inventor 于政道于富强邓冬萍刘翠红姜甫恩
Owner 清正生态科技(苏州)有限公司
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