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Method for controlling algae by using young silver carps and bighead carps

Resumen de: CN122030302A

The invention provides a method for controlling algae by using young silver carps and bighead carps, and relates to the technical field of ecological restoration of water bodies. The method provided by the invention comprises the following step: the weights of fry of the young silver carp and the bighead carp are both 5-9g. According to the method, the young silver carps and the bighead carps are adopted for controlling algae, the growth speed of the young silver carps and the bighead carps is high, the fry source is wide, the cost is relatively low, and a large amount of food is needed in the growth process to meet the energy requirement. The algae control capability of the young silver carps and bighead carps is evaluated through a system, it is determined that the content of chlorophyll a in water can be remarkably reduced through the method, and the control effect of the young silver carps and bighead carps on cyanobacterial bloom is clear.

AUDITORY SUPPLEMENTS CONTAINING MICROALGAE EXTRACTS

Resumen de: KR20260069186A

본 발명은 미세조류 추출물을 함유하는 청각 기능 보충제에 대한 것으로서, Limnothrix종 KNUA002 균주를 통해 추출된 미세조류 추출물인 스피루리나를 함유하여, LDL-C 수치, HDL-C 수치 등 다양한 대사 지표를 개선하고, IL-6 수치와 대사증후군 개별 위험 요인이 개선되도록 하며, 특히 복용자의 청각 기능이 개선되도록 한다.

Separation and extraction method and application of algicidal active ingredients of glycothrix fermentation product

Resumen de: CN122038167A

The invention relates to a separation and extraction method and application of algicidal active ingredients of a saccharothrix fermentation product, and belongs to the field of separation and extraction of microbial fermentation products. The preparation method comprises the following steps: preparing a seed solution, carrying out fermentation culture, carrying out 90% absolute ethyl alcohol precipitation, redissolving and the like, and separating an algae-lysing active component from a fermentation product of saccharothrix violaracirubra NBAL-S001 of which the preservation number is CCTCC (China Center for Type Culture Collection) NO: M20241734, so as to obtain the algae-lysing active component, wherein the algae-lysing active component is prepared from the fermentation product of the saccharothrix violaracirubra NBAL-S001; the mass percent of total polysaccharides of the component is at least 78%, monosaccharides comprise mannose, ribose, rhamnose, glucose, galactose and arabinose, the mass percent of the glucose is larger than 80%, and the glucose is a water-soluble non-protein substance and has a remarkable inhibiting effect on microcystis aeruginosa. The extraction method provided by the invention is simple and convenient in steps, low in cost, high in extraction efficiency and capable of realizing large-scale production; the active ingredients are good in algae-lysing effect, environment-friendly and free of secondary pollution, and an efficient technical scheme is prov

Light guide optimization device and method for photobioreactor

Resumen de: CN122038096A

The invention discloses a device for light guide optimization of a photobioreactor, and relates to the field of microbiological devices. The device comprises a water-light lamp main body and a circulating water pump device, the water-light lamp main body is a transparent tubular container, a point light source incident port, a water outlet and a water inlet are formed in the water-light lamp main body, and nano silicon dioxide water suspension is contained in the water-light lamp main body; the circulating water pump device is connected with the water lamp body through a water pipe to achieve circulating flowing of turbid liquid. A point light source is converted into an area light source through turbid liquid scattering, the problems that an existing light guide device is low in side wall light emitting intensity and uneven in light distribution are solved, scattering stability is guaranteed, the microalgae and photosynthetic bacterium culture efficiency is improved, and the light guide device is simple in structure, high in adaptability and easy to popularize on a large scale.

Chlorella pyrenoidosa mutant strain J-1 with high biomass and high photosynthetic efficiency as well as construction method and application of chlorella pyrenoidosa mutant strain J-1

Resumen de: CN122038129A

The invention relates to the technical field of microalgae biology, in particular to a high-biomass and high-photosynthetic-efficiency chlorella pyrenoidosa mutant strain J-1 which is obtained by mutagenizing wild type chlorella pyrenoidosa through an atmospheric pressure room temperature plasma (ARTP) mutagenesis technology and combining an efficient screening strategy. When the strain is cultured for 4 days under a standard autotrophic condition, the biomass reaches 1.23 mg/mL, the OD750 reaches 6.27, and when the strain is cultured for 5 days under a high light stress condition, the OD750 reaches 16.70; according to the invention, the growth performance is obviously enhanced: the biomass of J-1 is higher than that of WT under autotrophic, mixotrophic or heterotrophic conditions, and the biomass of a J-1 mutant strain reaches 1.23 mg/mL and is increased by 53.8% compared with that of a wild type (0.80 mg/mL) after the J-1 mutant strain is cultured for 4 days under a standard autotrophic condition (50 mu mol * m <-2 > * s <-1 >); the OD750 reaches 6.27 and is higher than 5.75 of a wild type, the OD750 reaches 2.18 mg/mL (WT is 1.75 mg/mL) on the fourth day of mixotrophic culture, the OD750 reaches 1.39 mg/mL (WT is 1.05 mg/mL) on the fourth day of heterotrophic culture, and it is indicated that biomass can be efficiently accumulated in different nutritional modes.

Method for improving fucoxanthine yield by adopting nutrition mode switching

Nº publicación: CN122038128A 15/05/2026

Solicitante:

MEIZAO BIOTECHNOLOGY JIAXING CO LTD
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Resumen de: CN122038128A

The invention relates to a high-fucoxanthine algae cell culture method, which realizes rapid accumulation of fucoxanthine by adjusting the nitrogen-carbon ratio and starvation culture transition in the microalgae growth process and the fucoxanthine accumulation process, and finally obtains microalgae cells with high fucoxanthine content.