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Method for promoting microalgae growth by using pharmaceutical product

Resumen de: CN120442514A

The invention belongs to the technical field of microalgae biology and culture, and particularly relates to a method for promoting microalgae growth by using a pharmaceutical product, which comprises the following steps: activating microalgae on a solid flat plate, inoculating the activated microalgae into a liquid culture medium, adding the pharmaceutical product at the initial stage of microalgae growth, placing in a constant-temperature shaking table, and carrying out illumination culture. According to the method, different types of pharmaceutical products with different concentrations are added into the microalgae, the influence of the addition of the different types of pharmaceutical products with different concentrations on the growth promotion of the microalgae is analyzed, the biomass of the chlorella can be rapidly increased, and the method has important significance on the large-scale production of the microalgae.

High-yield glucose-secreting cyanobacteria and application thereof

Resumen de: CN120442677A

The invention relates to application of a cyanobacteria glucokinase inactivating agent in preparation of cyanobacteria with a glucose secretion function or high glucose yield. The invention further relates to cyanobacteria with a high glucose secretion function or high glucose yield and application of the cyanobacteria. Glucokinase in the cyanobacteria loses functions. According to the invention, glucokinase of cyanobacteria is knocked out, the mutant strain accidentally obtains the capacity of mass production of glucose and secretion of glucose to the outside of cells, the yield of glucose is increased by hundreds of times, the mutant strain provides possibility for subsequent industrial production of glucose by using cyanobacteria, and the mutant strain can be used for constructing a biological photovoltaic device, and has a wide application prospect. And glucose is continuously provided for the cathode cell and is used for being matched with a glucose oxidation electron transfer chain displayed extracellularly to generate reducing power and electrons, so that the light energy conversion efficiency is improved, and efficient transmembrane transfer of energy substances is realized.

Seawater chlorella with high ammonia nitrogen removal rate and high starch accumulation capacity as well as culture method and application thereof

Resumen de: CN120442407A

The invention discloses seawater chlorella with high ammonia nitrogen removal rate and high starch accumulation capacity as well as a culture method and application of the seawater chlorella. The problems that the growth rate is reduced and the ammonia nitrogen treatment efficiency is reduced due to the salt stress effect when a traditional bioremediation technology is applied to a tidal basin are solved. According to the method, the seawater chlorella with high adaptability is utilized, the ammonia nitrogen absorption capacity and the starch accumulation amount of the seawater chlorella are remarkably improved through the salt synergistic effect in combination with the immobilization technology, and therefore effective treatment on the ammonia nitrogen pollution of the tidal basin is achieved. Under the conditions that the salinity is 0.5% and the ammonia nitrogen concentration is 3 mg/L, the ammonia nitrogen removal rate of the seawater chlorella reaches 93.60%, the starch accumulation amount reaches 10.06 mu g/10 < 6 > cells, and the ammonia nitrogen removal rate and the starch accumulation amount are increased by 23.2% and 58.4% respectively. The method has the advantages of simple and convenient process, high efficiency, strong environmental adaptability and the like, and is suitable for ammonia nitrogen pollution treatment and microalgae resource utilization in tidal basins.

Method for screening spirulina with anti-pollution capacity

Resumen de: CN120442748A

The invention relates to a method for screening spirulina with anti-pollution capacity, which comprises the following steps: S1, inoculating starting spirulina into a liquid culture medium, and adding a pollution system to obtain a bacterium-algae evolution screening system; s2, culturing the bacteria-algae evolution screening system under illumination until algae cells are basically split; s3, resuscitating the bacteria-algae evolution screening system to obtain a resuscitated spirulina culture; and S4, purifying the spirulina with anti-pollution capacity from the spirulina resuscitation culture. On the basis of biological stress of polluting bacteria in a microalgae culture system, adaptive evolution of the spirulina on different culture scales is promoted by utilizing the algae lysing effect of the mixed bacterial liquid on the spirulina and evolution rescue of the spirulina, and finally, the spirulina strain with higher stress resistance and pollution resistance is obtained by utilizing the existing spirulina strain. And a rapid and effective way is provided for spirulina breeding.

Integrated extraction device for microalgae polysaccharide

Resumen de: CN120442390A

The invention relates to an integrated extraction device for microalgae polysaccharide. The integrated extraction device comprises an algae adding system, a centrifugal system, an enzymolysis system, a flash extraction system, a separation and purification system and a drying system, the centrifugal system comprises a centrifugal device, a filtering device, a slag scraping device, a feeding hole and a discharging hole; the enzymolysis system comprises an enzyme adding tank, an enzymolysis tank, a reflux system, a filtering system, a water adding system and a monitoring and safety system; the flash extraction system comprises a flash extraction device, a lifting device, a fixing device, a feed port and a discharge port; the separation and purification system comprises a solid-liquid separation unit, a deproteinization unit, a decolorization unit, an alcohol precipitation unit and a purification unit; the drying system comprises an atomization device and a hot air device and can dry microalgae polysaccharide. The extraction device can realize automatic and efficient extraction of microalgae polysaccharide, is automatic, efficient and suitable for various microalgae, and the microalgae polysaccharide prepared by adopting the system has relatively good stability, biological activity, extraction rate and purity.

Method for generating and extracting microalgae metabolite

Resumen de: CN120442720A

The invention discloses a microalgae metabolite generation and extraction method. The microalgae culture is subjected to stress treatment to stimulate the microalgae to increase the secretion of metabolites. In addition, cell walls of the microalgae are decomposed by hydrolyzing enzymes or fungal cultures, so that metabolites of the microalgae are released more effectively. And finally, separating and purifying the metabolite released by the microalgae by adopting methods such as filtration, centrifugation, ultrafiltration and the like. According to the method, the yield of microalgae metabolites can be increased, and the method has important value for application of microalgae in the fields of biotechnology, food, medicine industry and the like.

Microalgae culture, harvesting and energy utilization process and system

Resumen de: CN120442405A

The invention relates to the field of microalgae culture and energy utilization. More specifically, the invention relates to a microalgae culture, harvesting and energy utilization process and system, cultured microalgae are harvested in a flocculation mode, ferric nitrate is used as a flocculant, ammonia water is added to adjust pH, generated ammonium nitrate can be recycled as a nitrogen source, and iron ions are changed into ferric hydroxide precipitates to be removed; the harvested microalgae is subjected to pyrolysis to prepare high-calorific-value bio-oil and biogas, iron-containing pyrolysis residues are further treated to obtain Fe3O4-BC serving as a magnetic flocculant, allelochemicals in an algae solution can be adsorbed and removed while microalgae flocculation is enhanced, and the inhibition effect of the culture solution on the microalgae during cyclic utilization is reduced. According to the invention, the culture, harvesting and energy utilization of microalgae can be synchronously realized, the problems of large water consumption in microalgae culture, difficult harvesting, incapability of effectively recycling a culture solution and the like are effectively solved, and a technical basis is provided for industrial application of energy microalgae.

Livestock and poultry breeding wastewater treatment device based on dynamic bacterial-algae biological membrane and method and application of livestock and poultry breeding wastewater treatment device

Resumen de: CN120441104A

The invention discloses a livestock and poultry breeding wastewater treatment device based on a dynamic bacterial-algae biological membrane and a method and application thereof, and relates to the field of livestock and poultry breeding tail water treatment. According to the biological treatment membrane bed unit, biological treatment and evaporation processes are creatively combined, and the system stability and the wastewater purification efficiency are remarkably improved. The unit is high in environmental adaptability and free of emission and peculiar smell during operation, the wastewater volume is effectively reduced, and the limitation of resource utilization of aquaculture wastewater is broken through. The biological membrane contains a plurality of microorganisms, including high-efficiency microorganisms added at the early stage and microorganisms captured from the environment, so that the operation and maintenance cost of equipment is reduced. Microalgae cells grow in the form of a biological membrane and are easy and convenient to harvest, and automatic continuous production is realized. According to the technology, organic waste in the breeding wastewater is recycled, the product is widely applied to multiple fields, the biological carbon sequestration function is achieved, and the carbon trapping device is low in cost, high in output value, green and environmentally friendly and assists in constructing a sustainable technical system and a circular economy mode.

Methods And Materials For Producing Recombinant Viruses In Eukaryotic Microalgae

Resumen de: AU2025203546A1

The present invention is directed to methods and materials for producing recombinant viruses. In particular, methods and materials are provided for producing recombinant viruses in eukaryotic microalgae such as Chlamydomonas reinhardtii. Recombinant adeno- associated viruses are examples of recombinant viruses produced according to the invention. The present invention is directed to methods and materials for producing recombinant viruses. In particular, methods and materials are provided for producing recombinant viruses in eukaryotic microalgae such as Chlamydomonas reinhardtii. Recombinant adeno- associated viruses are examples of recombinant viruses produced according to the invention. ay h e p r e s e n t i n v e n t i o n i s d i r e c t e d t o m e t h o d s a n d m a t e r i a l s f o r p r o d u c i n g r e c o m b i n a n t v i r u s e s n a y p a r t i c u l a r , m e t h o d s a n d m a t e r i a l s a r e p r o v i d e d f o r p r o d u c i n g r e c o m b i n a n t v i r u s e s i n e u k a r y o t i c m i c r o a l g a e s u c h a s h l a m y d o m o n a s r e i n h a r d t i i e c o m b i n a n t a d e n o - a s s o c i a t e d v i r u s e s a r e e x a m p l e s o f r e c o m b i n a n t v i r u s e s p r o d u c e d a c c o r d i n g t o t h e i n v e n t i o n

NOVEL MICROALGAE AND USE FOR SAME

Resumen de: US2025250533A1

Provided is an alga belonging to Cyanidiophyceae having a diploid cell and a haploid cell form. Also provided is a nutrient composition containing an alga belonging to Cyanidiophyceae or an extract thereof.

ENCAPSULATION OF MICROALGAE IN HYDROGEL POLYMER AND HIGH-DENSITY ALGAL BIOMASS

Resumen de: WO2025166275A1

Aspects of the present disclosure generally relate to a new class of compositions that include microalgae encapsulated within a polymerized hydrogel. Aspects of the present disclosure also generally relate to high density algal biomass and to new processes for growing algal biomass. In an aspect is provided a composition that includes an encapsulant comprising a polymerized hydrogel, and microalgae encapsulated within the encapsulant. In another aspect, a process for encapsulating algae is provided. The process includes: introducing, to a device, a stream of core fluid comprising microalgae and a hydrogel precursor; contacting the stream of core fluid with two streams of a focusing fluid to form a thinner stream of core fluid comprising the microalgae and the hydrogel precursors, the focusing fluid having a different viscosity than the core fluid; and exposing the thinner stream of the core fluid to UV light to form a composition described herein.

A METHOD FOR PREPARING AND SELECTING A POLYMERIC FLOCCULANT FOR USE IN HARVESTING MICROALGAE

Resumen de: AU2023350703A1

The present invention relates to a method for harvesting microalgae, the method comprising (i) mixing one or more monomers, a photoinitiator, water and a deoxygenation system to form a mixture; (ii) exposing the mixture to UV light so as to form an aqueous solution of one or more polymers; (iii) introducing the aqueous solution of one or more polymers to a suspension comprising microalgae in an amount sufficient to produce flocculated microalgae; and (iv) harvesting the flocculated microalgae. The present invention also relates to a method for preparing and selecting a polymeric flocculant for use in harvesting microalgae and a related apparatus.

PHOTOBIOREACTOR AND METHOD FOR GROWING MICROALGAL-TYPE BIOLOGICAL ORGANISMS

Resumen de: WO2024068658A1

The invention relates to a photobioreactor (1) for growing microalgal-type biological organisms, the growth being based on autotrophy under light that is essentially, or even exclusively, artificial, wherein the organisms grow in a nutrient-rich liquid substrate circulating in the photobioreactor, the photobioreactor comprising at least one cell (3) referred to as an illuminated cell, the photobioreactor (1) being characterized in that the illuminated cell (3) comprises at least one spiral-shaped transparent pipe and in that the illuminated cell (3) comprises at least two sections referred to as lighting sections which are associated with the transparent pipe and arranged on either side of the transparent pipe.

Indoor microalgae culture device

Resumen de: CN223189183U

The utility model discloses an indoor microalgae culture device, which belongs to the technical field of culture devices and comprises a box body for microalgae culture, the box body is of a square open structure, a light source structure is arranged at the top of the box body and comprises light wavelength adjusting buttons, a lamp tube and a fixer, and the light wavelength adjusting buttons are mounted at two ends of the lamp tube. The light wavelength adjusting button and the lamp tube are fixedly connected through a fixing device, and the lamp tube is fixed at the top end of the box body through the fixing device; the box body is provided with an aeration device, a temperature control device, a pH monitoring device and a water body circulating device, the growth conditions of microalgae can be accurately controlled and optimized, the wavelength of light generated by a lamp tube arranged on the device can be adjusted in a wide range, the optimal wavelength suitable for microalgae growth can be conveniently set, and the microalgae growth efficiency is improved. The design of the cuboid box body and the growth environment parameter adjusting system can realize water-saving culture of microalgae and promote formation of a microalgae biological membrane.

Functional unannotated protein CpsA and application thereof

Resumen de: CN120424182A

The invention discloses a function unannotated protein CpsA and application thereof, and belongs to the technical field of biochemistry. The CpsA protein provided by the invention is a thylakoid membrane protein which is coded by synpcc79421022 in synechococcus slender PCC 7942, and the function of the thylakoid membrane protein is not annotated. The protein can be specifically combined with an early PSII assembly factor Psb28, formation and stability of a PSII final oxygen evolution complex are promoted, and the assembly efficiency of a light system II and formation of a functional complex are remarkably improved. In addition, the CpsA protein is highly conserved in cyanobacteria, microalgae and land plants, and has wide application potential.

3 Carbon dioxide reduction device comprising three-dimensional porous hydrogel structures and microalgae and manufacturing method thereof

Resumen de: KR20250116963A

본 발명은 3차원 다공성 하이드로겔 구조체 및 미세조류를 포함하는 이산화탄소 저감 장치 및 이의 제조방법에 관한 것으로, 이산화탄소를 흡수하고 산소 및 유기물을 생산할 수 있는 미세조류를 3차원 다공성 하이드로겔 구조체에 포함시킬 경우, 미세조류가 공기 중의 이산화탄소; 및 태양광에 노출되는 표면적이 증가하여 미세조류의 이산화탄소 흡수 속도가 증가하는 것을 확인함으로써, 이산화탄소 저감 장치로써 유용하게 활용될 수 있다.

Floating type offshore comprehensive utilization platform

Resumen de: CN120397179A

The invention provides a floating type offshore comprehensive utilization platform. The floating type offshore comprehensive utilization platform comprises a floating body platform, a buoy, a supporting unit, a photovoltaic module, a microalgae culture bin, a circulating water tank and a rough machining tank, a plurality of buoys extending below the sea level are arranged at the bottom of the floating body platform, and supporting units are arranged between the buoys and the floating body platform; the microalgae cultivation bin is arranged below the sea level, and the microalgae cultivation bin is fixed to the supporting unit; the circulating water tank and the rough machining tank are both arranged on the floating body platform, the first output end of the circulating water tank is connected with one end of the microalgae cultivation bin, and the first input end of the circulating water tank is connected with the other end of the microalgae cultivation bin through the rough machining tank. The method has the technical effects that the integration of offshore power generation and offshore high-value microalgae culture is realized, and the total income is increased; a marine photovoltaic floating body platform is fully utilized, a culture space and an equipment platform are provided for microalgae culture, and the photovoltaic module has the advantage of self-energy supply.

Method for improving astaxanthin produced by haematococcus pluvialis

Resumen de: CN120400290A

The invention belongs to the field of industrial application of microalgae, and provides a method for improving astaxanthin produced by haematococcus pluvialis. Comprising the following steps: 1, culturing haematococcus pluvialis to a logarithmic phase; 2, the haematococcus pluvialis is diluted to a proper concentration, and a seed solution for producing astaxanthin from the haematococcus pluvialis is prepared; 3, respectively adding six pre-prepared inducers including creatine, glycine, 6-aminocaproic acid, glutamic acid, L-hydroxyproline and L-cysteine into the prepared haematococcus pluvialis liquid for induction; and 4, continuously filling sterile air into the haematococcus pluvialis liquid added with the inducer in a photobioreactor, culturing, and inducing haematococcus pluvialis cells to accumulate astaxanthin. The invention discloses a method for improving astaxanthin produced by haematococcus pluvialis. The haematococcus pluvialis can be promoted to accumulate a large amount of astaxanthin, and the production cycle of the astaxanthin is shortened. The method is easy to operate, high in efficiency, low in cost and completely suitable for industrial culture of haematococcus pluvialis.

System and method for scalable production of cyanobacteria biomass

Resumen de: WO2024134649A1

Method and system for producing edible filamentous fresh cyanobacteria biomass. A rotary drum filtration unit filters a cultivated cyanobacteria in a primary filtration to obtain a filtrated cyanobacteria biomass. The filtration unit includes a rotatable filtering drum including a filtration basket including a thermally coupled mesh netting, configured for retaining particles above a selected size when filtering drum is rotated. The filtrated cyanobacteria biomass is washed and neutralized using a solution introduced to the filtration unit during or after primary filtration. A pressing unit applies a pressing to the biomass to concentrate the solid content. Cultivated cyanobacteria may undergo initial microfiltration to remove large impurities prior to primary filtration. Cultivated cyanobacteria may initially be pumped from a cultivation vessel using a low-shear pump. Cyanobacteria biomass may undergo cooling prior to primary filtration. Pressed biomass may be packaged and frozen to produce a cyanobacteria product for edible consumption.

WET TYPE AIR CLEANERS USING PHOTOSYNTHETIC MICROALGAE

Resumen de: KR20250116443A

광합성 미세조류를 이용한 습식 공기 청정기가 개시된다. 본 발명에 따른 광합성 미세조류를 이용한 습식 공기 청정기는, 광합성 미세조류를 포함하는 배양액을 수용하도록 구성되고, 한쪽에 제1 공기 유입구와 제1 공기 유출구가 구분되어 마련되며, 내측 상부에 상기 제1 공기 유입구와 상기 제1 공기 유출구를 구분하기 위한 격막이 마련된 빛 투과재질로 된 배양액 용기; 하부에 광촉매 필터를 구비한 거름부가 마련되고 일측 측벽에는 상기 제1 공기 유입구 및 상기 제1 공기 유출구에 각각 대응되는 제2 공기 유입구 및 제2 공기 유출구가 각각 마련되고, 일측면에는 상기 제2 공기 유입구와 연통되는 제3 공기 유입구가 마련되며, 타측면에는 상기 제2 공기 유출구와 연통되는 제3 공기 유출구가 마련되는 하우징; 및 상기 제3 공기 유입구로부터 유입되는 외부공기를 필터로 여과한 후 버블 발생기를 통하여 상기 제2 공기 유입구로 미세 버블을 공급하도록 구성되어 상기 하우징의 내부에 마련되는 공기 공급기를 포함하고, 외부공기가 상기 버블 발생기를 통하여 상기 배양액을 통과할 때 상기 광합성 미세조류의 광합성으로 이산화탄소가 소비되고, 미세조류의 광합성으로 생성된 산소가 배양액을 통과한 공기와 함께 상기 제3

Composition for maintaining or increasing fibrous structural protein

Resumen de: TW202529788A

The purpose of the present invention is to provide a preparation that is effective for maintaining or increasing a hair fibrous structural protein. Provided are a composition for maintaining or increasing a fibrous structural protein, a composition for maintaining or increasing skin elasticity, a composition for improving hair quality, and a composition for promoting the production of collagen, elastin, or hyaluronic acid, wherein each of the compositions contains a culture supernatant of microalgae and/or extracellular vesicles of microalgae.

NOVEL MICROALGAE AND USE FOR SAME

Resumen de: US2025243450A1

Provided is an alga belonging to Cyanidiophyceae having a diploid cell and a haploid cell form. Also provided is a nutrient composition containing an alga belonging to Cyanidiophyceae or an extract thereof.

NOVEL MICROALGAE AND USE FOR SAME

Resumen de: US2025243449A1

Provided is an alga belonging to Cyanidiophyceae having a diploid cell and a haploid cell form. Also provided is a nutrient composition containing an alga belonging to Cyanidiophyceae or an extract thereof.

AN ON-SITE MODULAR SYSTEM FOR PROCESSING AND TRANSFORMING ANIMAL WASTE AND A PROCESS AND USES THEREOF

Resumen de: WO2025158072A1

AN ON-SITE MODULAR SYSTEM FOR PROCESSING AND TRANSFORMING ANIMAL WASTE AND A PROCESS AND USES THEREOF The present invention relates to an on-site modular system for processing and transforming animal waste. The present invention also relates to a process for transforming animal waste in situ using said on-site modular system. The present invention further relates to the uses and derived advantages in terms of farm greenhouse gas emissions management and agricultural or natural soil amendments of a processed rich-nutrients biologically absorbable nitrogen-rich phosphorus-rich potassium-rich liquid microalgae culture fraction obtained with the process of the invention. Besides, the invention further relates to the uses as recycler of toxic or contaminants in animal waste farm and/or for animal feed of a processed rich-carbon solid inactivated microalgae culture fraction obtained with the process of the invention.

COSMETIC USES OF A HYDROLYSATE OF AN EXTRACTION CO-PRODUCT OF THE MICROALGA PHAEODACTYLUM TRICORNUTUM

Nº publicación: EP4590267A1 30/07/2025

Solicitante:

MICROPHYT [FR]
Microphyt

Resumen de: WO2024062193A1

The invention relates to the cosmetic or nutraceutical use of a hydrolysate of an extraction co-product of the microalga Phaeodactylum tricornutum for exfoliating the skin and/or reducing the microrelief of the skin. The invention also relates to a cosmetic skincare method comprising the topical application of a hydrolysate of an extraction co-product of the microalga P. tricornutum or of a composition comprising same for exfoliating the skin and/or reducing the microrelief of the skin.