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Microalgae biological soil remediation agent and preparation method thereof

Resumen de: CN120682822A

The invention belongs to the technical field of soil remediation, and discloses a microalgae biological soil remediation agent and application thereof. A sustainable benign underground micro-ecosystem is constructed, the prepared microalgae biological soil remediation agent takes a porous active carrier with positive charges as a matrix, the porous active carrier is a porous carrier obtained by compounding silicon dioxide on montmorillonite, and the porous carrier is modified to obtain an aminated porous carrier with negative charge NH2-groups between layers. And finally, chitosan cations loaded on the carrier become a porous active carrier with positive charges, and the carrier is loaded with a large amount of chlorella pyrenoidosa, so that the environmental sensitivity is reduced, the carrier can survive and breed in a harsh soil environment, the soil fertility can be remarkably improved, and the yield and quality of crops are improved. Meanwhile, the effect of reducing soil heavy metal pollution is also achieved; the microbial community diversity of the soil can be increased, the soil aggregate structure is improved, and the physical and chemical environment of the soil is improved.

Xanthophyll-producing flavobacterium strain

Resumen de: CN120665770A

The invention relates to a lutein-producing flavobacterium strain and belongs to the technical field of biology, the lutein-producing flavobacterium strain can produce lutein, the yield is 71.08 +/-1.33 mu g/g FW, in addition, the invention discloses a lutein microbial fermentation production method, and the method comprises the steps of bacterial liquid preparation, lutein production and product extraction and chemical detection. Compared with extraction of xanthophyll from marigold and microalgae, the flavobacterium strain has the advantages that the growth cycle is 40-48 hours, the production cycle of the flavobacterium strain is short, cultivated land can be saved, the content of pigment impurities is low, the cost can be reduced, and the flavobacterium strain has the potential of industrial application.

Selenium-containing protein carotenoid microalgae cultivation device

Resumen de: CN223357628U

The utility model relates to the technical field of cultivation devices, in particular to a selenium-containing protein carotenoid microalgae cultivation device. Aiming at the problem that the growth of microalgae is limited due to the change of external illumination and temperature and the inappropriate change of the concentration of carbon dioxide, so that the content of selenoprotein carotenoid is reduced, the following technical scheme is provided: the device comprises a box body, the top of the box body is rotatably connected with a box cover, and a cultivation groove is formed in the box body; a cultivation tank is placed in the cultivation groove, and microalgae are contained in the cultivation tank; the constant-temperature heating unit is mounted in the box body, and the top of the constant-temperature heating unit is in contact with a cultivation tank; the lamp strip is mounted on the inner wall of the cultivation tank and surrounds the outer ring of the cultivation tank. The device can automatically adjust the illumination, the temperature and the carbon dioxide content of microalgae breeding, improves the growth efficiency of microalgae, and ensures the growth of microalgae, the accumulation of nutritional ingredients and the final harvesting efficiency.

Method for producing high-quality protein raw material microalgae

Resumen de: CN120665720A

The invention discloses a method for producing high-quality protein raw material microalgae. By combining a reduction product formic acid driven by carbon dioxide clean energy with edible microalgae culture, microalgae growth and protein synthesis are enhanced. The method specifically comprises the following steps: carrying out adaptive evolution of microalgae by using 20-50mM of low-concentration formate, culturing under an illumination condition by using 50-300mM of formate as an auxiliary carbon source, and finally harvesting the microalgae biomass of which the protein content exceeds 30% and the amino acid composition meets the high-quality protein requirements of international grain and agricultural tissues, high-quality protein raw materials of food and feed can be used. The method has a remarkable application prospect in the field of green non-grain high-quality protein raw material production.

Multi-strain insect protein and microalgae compounded bullfrog feed and preparation method thereof

Nº publicación: CN120660801A 19/09/2025

Solicitante:

YINHAO BIOTECHNOLOGY XIAMEN CO LTD
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Resumen de: CN120660801A

The invention belongs to the crossing field of cultivation and bioengineering, and particularly relates to a multi-strain insect protein and microalgae compounded bullfrog feed and a preparation method thereof, the multi-strain insect protein and microalgae compounded bullfrog feed comprises the following components: 25-45% of fermented insect protein, 15-30% of DHA microalgae powder, 10-20% of an auxiliary protein source, 0.5-2% of compound vitamin selected from fermented soybean meal or enzymolysis cottonseed protein, 0.5-2% of vitamin B, 0.5-2% of vitamin C, 0.5-2% of vitamin C, 0.5-2% of vitamin C, 0.5 1%-3% of composite mineral substances, 2%-5% of an adhesive and the balance of carbohydrate; the total DHA content of the bullfrog feed is larger than or equal to 1.5% by dry weight, the ratio of omega-3 fatty acid to omega-6 fatty acid is maintained to be 1: 1-1: 3, and the bullfrog feed has the advantages that saccharomyces cerevisiae is replaced with candida utilis, so that the capability of decomposing insect chitin is enhanced; chlorella is used for supplementing chlorophyll and algal polysaccharides to form a cell protection synergistic effect with schizochytrium limacinum, and DHA is supplemented at the same time; under the action of alkaline protease secreted by bacillus subtilis, the proportion of a beta-folding structure is reduced from 32% to 18%, and the digestibility is remarkably improved.