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65 results about "Haematococcus pluvialis" patented technology

Haematococcus pluvialis is a freshwater species of Chlorophyta from the family Haematococcaceae. This species is well known for its high content of the strong antioxidant astaxanthin, which is important in aquaculture, and cosmetics. The high amount of astaxanthin is present in the resting cells, which are produced and rapidly accumulated when the environmental conditions become unfavorable for normal cell growth. Examples of such conditions include bright light, high salinity, and low availability of nutrients. Haematococcus pluvialis is usually found in temperate regions around the world. Their resting cysts are often responsible for the blood-red colour seen in the bottom of dried out rock pools and bird baths. This colour is caused by astaxanthin which is believed to protect the resting cysts from the detrimental effect of UV-radiation, when exposed to direct sunlight.

Method for promoting biomass accumulation of haematococcus pluvialis

The invention discloses a method for promoting biomass accumulation of haematococcus pluvialis, which comprises the following steps: adding salicylic acid, melatonin and alpha-ketoglutaric acid into a basic culture medium, and replacing ferric trichloride with ferric citrate as an iron source to obtain an improved BG-11 culture medium; the method comprises the following steps: inoculating a haematococcus pluvialis seed solution into a culture bottle containing an improved culture medium, carrying out illumination treatment on the first day to the second day by adopting pulsed red light with the wavelength of 620 nm in the early stage of a green stage, carrying out illumination treatment on the third day to the fifth day by adopting red light with the wavelength of 660 nm in the middle stage of the green stage, and carrying out illumination treatment on the sixth day to the seventh day by adopting pulsed red light with the wavelength of 680 nm in the later stage of the green stage. Through a synergistic scheme of the improved BG-11 culture medium, staged red light treatment and dynamic environment regulation and control, the problems of low light energy utilization rate and insufficient stress resistance in the existing haematococcus pluvialis culture process are solved, high efficiency and stability of haematococcus pluvialis biomass accumulation are realized, the biomass can reach 7.0 * 10 < 5 > cells / mL in the later period of the green stage, and the yield of the haematococcus pluvialis can reach 7.0 * 10 < 5 > cells / mL in the later period of the green stage. And the survival rate of haematococcus pluvialis cells reaches 95%.
Owner:佛照(海南)科技有限公司

A method for synchronously separating active substances of haematococcus pluvialis

The application provides a method for synchronously separating active substances of Haematococcus pluvialis, and relates to the technical field of natural product extraction, and comprises an extraction phase with a mass ratio of 20%-50%, and the balance is water; the extraction phase is a quaternary phosphonium ionic liquid or a eutectic solvent; the quaternary phosphonium ionic liquid comprises tetrabutylphosphonium trifluoroacetate or tributyl octyl phosphonium bromide; and the eutectic solvent comprises a quaternary phosphonium ionic liquid and a fatty acid with a molar ratio of 1:1-5:3. The extraction phase has weak acidity, the ability to form van der Waals forces and hydrogen bond interactions, the Haematococcus pluvialis cell wall breaking effect and high solubility. The extraction phase can form liquid-liquid phase separation, can realize the synchronous extraction of Haematococcus pluvialis cell wall breaking, astaxanthin, carbohydrates and proteins, and has no organic solvent, is simple to operate, has short extraction time and high extraction efficiency. The method solves the technical problem that the extraction agent in the prior art cannot effectively separate multiple active substances of Haematococcus pluvialis.
Owner:GUANGDONG PHARMA UNIV +1

Functional compositions, tonics and uses having improved bone and joint health

ActiveCN121513177BDiseaseSide effect
The application discloses a functional composition for improving bone and joint health, a conditioner and application. The functional composition comprises a first active component and a second active component; the first active component comprises elastin peptide, haematococcus pluvialis and ergothioneine; and the second active component comprises one or more of houttuynia cordata and non-denatured type II collagen. The application realizes the protection effect on joint, cartilage and bone health by scientific matching of the components and synergistically improving the glycosaminoglycan level in chondrocytes and the osteocalcin level in osteoblasts. Meanwhile, the components in the functional composition for improving bone and joint health are natural and have good biocompatibility, and have no obvious side effects, so that the application provides a kind of drug or a substitute for the treatment and prevention of bone diseases.
Owner:BEIJING QINGYAN BOSHI HEALTH MANAGEMENT CO LTD

A multi-level astaxanthin complex, its preparation method and application

This invention discloses a multi-level astaxanthin complex, its preparation method, and its applications, relating to the fields of encapsulation technology or astaxanthin formulations. It includes a first encapsulation component containing astaxanthin and a second encapsulation component containing Haematococcus pluvialis isolated protein; optionally, the multi-level astaxanthin complex further contains cyclodextrin or its derivatives. This invention overcomes the problems of aggregation and uneven encapsulation caused by the direct addition of astaxanthin or astaxanthin solution and the need for vigorous stirring to promote the formation of encapsulated particles in existing astaxanthin complex preparation techniques through local microencapsulation in a foaming microenvironment.
Owner:YUNNAN AIERKANG BIOTECH

Multifunctional special dietary food skin beautifying and shaping formula and application

The invention discloses a multifunctional special dietary food skin beautifying and shaping formula and application, and belongs to the technical field of beauty treatment. The multifunctional special dietary food at least comprises collagen peptide, collagen tripeptide, skipjack elastin peptide, carob bean extract, phosphatidylserine, casein hydrolytic peptide, nicotinamide, rice bran oil powder, haematococcus pluvialis, cranberry powder, oriental cherry flower powder, pig blood peptide powder, red date peptide powder and cattle spleen peptide. The health-care product can comprehensively supplement nutrition recovered after exercise, has the effects of beautifying, shaping and removing wrinkles, can effectively relieve pressure and regulate emotion, and also has the effects of improving female physiological health, strengthening the spleen and stomach and enhancing immunity.
Owner:伊美芳 +2

A method for extracting astaxanthin from haematococcus pluvialis using na des

The application discloses a kind of NADES and method for extracting astaxanthin from haematococcus pluvialis using it, wherein a kind of natural eutectic solvent for extracting astaxanthin from haematococcus pluvialis includes 1 molar part of hydrogen bond acceptor, 2-6 molar parts of hydrogen bond donor;The hydrogen bond acceptor is choline chloride, and the hydrogen bond donor is 1,4-butanediol or 1,2-propanediol.The extraction solvent of the application only needs to use the above-mentioned natural eutectic solvent to realize the extraction of astaxanthin in haematococcus pluvialis, which has the advantages of safety, green, higher extraction efficiency, etc., and is very beneficial to the industrialization and large-scale production of astaxanthin.
Owner:SHENZHEN UNIV

Method for treating fermentation wastewater

The application discloses a fermentation wastewater treatment method. The fermentation wastewater treatment method comprises the following steps: adding filamentous fungi and green algae into fermentation wastewater generated after fermentation treatment of kitchen garbage to carry out fermentation culture, then carrying out solid-liquid separation, and extracting oil from the separated solid. The filamentous fungi comprise Trichoderma harzianum, and the green algae comprise one or more selected from the group consisting of Chlorella vulgaris, Chlorella sp., Haematococcus pluvialis, Leptolyngbya sp., Agmenellum sp. and Comatulicium sp. The fermentation wastewater treatment method can produce oil while treating fermentation wastewater, and reduces the cost of fermentation wastewater treatment.
Owner:SUZHOU XUNIVERSAL BIOTECHNOLOGY CO LTD

Functional composition capable of improving health of bones and joints, conditioner and application

The invention discloses a functional composition capable of improving bone and joint health, a conditioner and application. The functional composition comprises a first active component and a second active component, the first active component is prepared from elastin peptide, haematococcus pluvialis and ergothioneine; the second active component is prepared from one or more of herba houttuyniae and non-denatured type II collagen. Through scientific compatibility of all the components, the levels of glycosaminoglycan in chondrocytes and osteocalcin in osteoblasts are synergistically improved, and the protection effect on joint, cartilage and skeleton health is achieved. Meanwhile, a plurality of components in the functional composition capable of improving the health of the bones and the joints are natural in source, good in biocompatibility and free of obvious side effects, and a medicine or an alternative scheme thereof is provided for treatment and prevention of the bone diseases.
Owner:BEIJING QINGYAN BOSHI HEALTH MANAGEMENT CO LTD

Crossbreeding method for groupers

PendingCN122074419Aimprove qualityImproved temperature adaptabilityClimate change adaptationAnimal feeding stuffAnimal scienceReproductive care
The invention relates to a grouper crossbreeding method. The method comprises the four steps of parent breeding, temperature-sensitive domestication, artificial spawning and insemination, incubation and fry breeding, specifically, cold water-based clear water stone spots and hot water-based brown spot stone spots are selected as parents, the clear water stone spots are used as female parents, the brown spot stone spots are used as male parents, and the middle water temperature is adapted through gradient temperature-sensitive domestication; stress-resistant feed containing hilsa herring egg source peptide and haematococcus pluvialis astaxanthin ester and a temperature-sensitive blender are matched, a reproductive care agent is supplemented to strengthen sperm and egg performance, and normative spawning induction, insemination and graded cultivation processes are adopted. According to the method, the problems of poor water temperature adaptation and low hatching rate of grouper hybrid sperms and eggs in different temperature areas are solved, the wide-temperature property of filial generations is improved, the method adapts to the water temperature of 18-28 DEG C, the hatching rate, the fry survival rate, the adult fish survival rate and the average weight of single fish are remarkably improved, and technical support is provided for industrial application.
Owner:SANYA AGRI INVESTMENT MARINE IND CO LTD

Active composition for relieving fatigue and application thereof

The invention is suitable for the technical field of biological medicine, and provides an active composition for relieving fatigue and application of the active composition. The composition is prepared from a silkworm chrysalis-derived mitochondrial repair peptide, a chickpea-derived neuromodulation peptide, a haematococcus pluvialis-derived phagocytosis peptide, a phosphatidylcholine-lipoic acid conjugate, a whey protein-chitosan copolymer and an ergothioneine-selenium compound in a synergistic manner. Through the synergistic effect of four mechanisms of energy metabolism activation, endocrine balance, mitochondrial autophagy repair and oxidative stress removal, physiological fatigue and stress fatigue are effectively and synchronously relieved. After targeted modification, the utilization rate of macamides is remarkably increased, and the composition can remarkably prolong exercise tolerance, reduce cortisol level, promote GABA synthesis, recover mitochondrial function and greatly shorten fatigue recovery time.
Owner:NINGBO BEST CONCORD BIO TECH CO LTD

Physical method nanometer material stripping dispersion machine

The utility model relates to a physical method nanometer material stripping and dispersing machine, which belongs to the technical field of nanometer material mechanical stripping and dispersing and comprises a jacket stirring barrel, a high-pressure jet flow mechanism, a liquid-accumulation-free material taking mechanism, an explosion-proof electric cabinet integrated system and an air filtering and drying machine for a transducer. A first I-level frequency conversion explosion-proof motor is arranged at the top of the jacketed stirring barrel, a right-angle speed reducer is fixedly mounted on the top surface of the motor base, the output end of the first I-level frequency conversion explosion-proof motor is fixedly connected with the right-angle speed reducer, and a quick lock catch is arranged on the jacketed stirring barrel. According to the physical method nano material stripping dispersion machine, the cost is reduced, the efficiency is improved, the problems of high preparation cost, low efficiency, poor consistency and the like in the new material industry are solved, a guarantee is provided for effectively extracting astaxanthin from haematococcus pluvialis through wall breaking and guaranteeing the biological activity of the astaxanthin, and the problem that existing equipment has tube breaking pain points in preparation of carbon nano tubes is solved; and the explosion risk caused by mixing and dispersing the NMP in the carbon nanotube slurry is solved.
Owner:YIWU BAIHANG INTELLIGENT TECHNOLOGY CO LTD

Haematococcus pluvialis / cd s composite material, and preparation method and application thereof

PendingCN122321945ANorfloxacinVisible light photocatalytic
This invention relates to the field of photocatalysis technology, and more particularly to a Haematococcus pluvialis / CdS composite material, its preparation method, and its applications. The Haematococcus pluvialis / CdS composite material provided by this invention comprises Haematococcus pluvialis and nano-CdS coated on the surface of the Haematococcus pluvialis; the mass content of astaxanthin in the Haematococcus pluvialis is 1-10%. Haematococcus pluvialis contains astaxanthin, which can enhance the ability of CdS to capture photons within the visible light wavelength range, thus acting as a dye sensitizer, while simultaneously inhibiting the recombination of photogenerated electrons / holes and improving the transport and transfer efficiency of photogenerated electrons. Therefore, compared with CdS alone, the Haematococcus pluvialis / CdS composite material exhibits better visible light photocatalytic activity. Results show that the Haematococcus pluvialis / CdS composite material has good visible light photocatalytic performance, achieving a removal rate of 84.5% for the recalcitrant norfloxacin within 60 min, and exhibits good cycling stability.
Owner:QINGHAI NORMAL UNIV

Haematococcus pluvialis culture pond facilitating impurity cleaning

The haematococcus pluvialis culture pond comprises a base, a pond body is arranged at the top of the base, stirring rods are arranged at the bottoms of the two sides of the interior of the pond body in a sleeved mode, U-shaped connecting rods are arranged on the two sides of each stirring rod, a driving assembly in transmission connection with one set of U-shaped connecting rods is arranged on one side of the top of the base, and the other side of the top of the base is provided with a driving assembly in transmission connection with the other set of U-shaped connecting rods. Sleeves are arranged on the two sides of the base. Through mutual cooperation of the driving assembly, the movable rod, the sleeve, the hinge rod, the U-shaped connecting rod, the liquid discharging pipe, the filter screen, the filter box and the piston, when the device drives the stirring rod to stir liquid in a culture pond, the piston can be synchronously driven to do piston operation in the sleeve, and the liquid in the pond body is continuously pumped into the filter box to be filtered; the filtered liquid can be conveyed into the pond body for circulation, so that impurities in the culture pond can be automatically removed, the cleanliness in the culture pond is ensured, and the impurity treatment convenience is improved.
Owner:JINGZHOU NATURAL ASTAXANTHIN INC ANALYTICAL SPECIFICATIONS

Preparation method of astaxanthin cordyceps sinensis fine powder

ActiveCN121153853BSettle the lossPermeation barrierBiotechnologyVegetable oil
The application provides a preparation method of astaxanthin cordyceps militaris fine tablets, comprising the following steps: subjecting cordyceps militaris fruiting bodies to supercritical CO2 extraction treatment to separate a cordyceps militaris terpene component; mixing Haematococcus pluvialis powder and edible vegetable oil, adding the cordyceps militaris terpene component and rosemary extract, and cooling and forming to obtain an astaxanthin-cordyceps militaris terpene blend; crushing the residue after extraction, adding purified water and a composite enzyme preparation to perform enzymolysis to obtain an enzymolysis liquid; adding a chitosan quaternary ammonium salt solution, centrifuging after flocculation, vacuum drying, and crushing to obtain cordyceps militaris active powder; mixing and granulating raw materials to obtain granulation particles; uniformly mixing the granulation particles with xylitol and microcrystalline cellulose, and pressing into tablets; and placing the tablets in a coating machine for coating. The application realizes efficient retention of active ingredients, improvement of safety and stability of product quality through the cooperation of multiple technologies such as supercritical CO2 extraction, enzymolysis flocculation, low-temperature fluidized bed granulation and hot melt coating.
Owner:YUNNAN AIERKANG BIOTECH

Haematococcus pluvialis intelligent culture system and method for resource utilization of waste biogas slurry

The invention relates to the technical field of microalgae culture, in particular to an intelligent haematococcus pluvialis culture system and method for waste biogas slurry resource utilization, and the system comprises a biogas slurry collection module which is used for collecting waste biogas slurry; the biogas slurry treatment and culture medium preparation module is used for carrying out treatment and nutrition blending on waste biogas slurry to prepare a culture medium special for haematococcus pluvialis; the modular culture unit is used for bearing a special culture medium and culturing haematococcus pluvialis for green growth of algae cells; the intelligent control module is used for receiving real-time monitoring data in the breeding process and dynamically optimizing key parameters such as illumination, temperature, pH, gas flow and nutrition supply through a self-adaptive algorithm; the induction harvesting module is used for applying multiple stress to the high-density algae liquid to induce astaxanthin accumulation, and algae mud is collected through a secondary harvesting system. Therefore, the problems of high production cost, low culture efficiency and the like in the prior art are solved.
Owner:YUNNAN BOXIN BIOTECHNOLOGY CO LTD

Compound micromolecule coral food and application thereof in adjusting structure of coral symbiotic microbial community

The application discloses a kind of complex small molecule coral food and its application in adjusting coral symbiotic microbial community structure.The raw materials of the complex small molecule coral food include: soybean meal small peptide protein, cod small peptide protein, haematococcus pluvialis powder, complex amino acid, squid meal, chitosan oligosaccharide and complex nucleotide.The complex small molecule coral food of the application takes soybean meal small peptide protein and cod small peptide protein as main component, haematococcus pluvialis as secondary component, and is supplemented with complex amino acid and squid meal, and is additionally added with chitosan oligosaccharide and complex nucleotide.The obtained complex small molecule coral food not only has good palatability, but also ensures the feeding amount of coral.It is verified by test that the complex small molecule coral food of the application can adjust the symbiotic microbial community structure of aquarium coral, improve the proportion of coral beneficial symbiotic bacteria, and further improve the environmental tolerance of coral.
Owner:SHENZHEN ZHIHAI MARINE BIOTECHNOLOGY CO LTD +1

Anti-oxidation and anti-aging composition, preparation method thereof and health-care product

The invention provides an antioxidant and anti-aging composition as well as a preparation method and a health-care product thereof, and relates to the technical field of health-care products. The composition comprises the following raw materials: a sophora flower bud extract, a thyme extract, an echinacea purpurea extract, haematococcus pluvialis powder and vitamins. The effects of remarkably improving oxidation resistance and delaying senescence are achieved through specific components, the sophora flower bud extract, the thyme extract, the echinacea extract, the haematococcus pluvialis powder and the vitamins jointly support and interact, free radicals in the body are effectively removed, and meanwhile aging is delayed; the raw materials are natural, safe and healthy, and can supplement nutrition when being matched with vitamins.
Owner:HENGRUI (ZHUHAI) BIOTECHNOLOGY CO LTD

A method for removing bacteria for cultivation of haematococcus pluvialis

PendingCN122357287AFiltrationBacteria
This invention discloses a sterilization method for Haematococcus pluvialis cultivation, comprising: centrifuging the Haematococcus pluvialis broth to obtain concentrated wet algal sludge; providing a sterilization solution; providing a filtration device, placing a sieve in the filtration device, and evenly spreading the concentrated wet algal sludge on the sieve; evenly pouring the sterilization solution onto the concentrated wet algal sludge and allowing it to stand for sterilization; providing a rinsing solution, evenly pouring the rinsing solution onto the concentrated wet algal sludge for rinsing; and transferring and resuspending the rinsed concentrated wet algal sludge. The beneficial effect of this invention is that by centrifuging the Haematococcus pluvialis broth to obtain concentrated wet algal sludge, evenly spreading the concentrated wet algal sludge on a sieve, pouring the sterilization solution onto the concentrated wet algal sludge, allowing it to stand for a period of time to complete sterilization, and then pouring the rinsing solution onto the concentrated wet algal sludge for rinsing, the sterilization solution and the concentrated wet algal sludge are rapidly physically separated, thereby achieving efficient and thorough sterilization while avoiding continuous toxic damage to the algae from the sterilization solution.
Owner:PILOT STAR (SHENZHEN) ENG TECH RES CENT CO LTD

Acne-removing gel candy and its preparation method

This invention provides an acne-removing gel candy and its preparation method. The raw materials for preparing the acne-removing gel candy include anti-inflammatory substances, antioxidants, skin improvers, acne bacteria inhibitors, and gel fillers. The anti-inflammatory substances include Haematococcus pluvialis oil, vitamin C derivatives, and plant oils; the antioxidants include yeast extract. This invention inhibits acne formation through anti-inflammatory substances, alleviates the effects of skin inflammation on the dermis to accelerate acne elimination through antioxidants, improves skin properties through skin improvers, and inhibits the proliferation of acne bacteria to repair acne. This multi-faceted approach effectively inhibits acne formation, clears acne, and improves skin after acne treatment.
Owner:XINCHEN BIOLOGY (GUANGDONG) CO LTD

Haematococcus pluvialis outdoor cultivation method for improving astaxanthin yield

This invention relates to an outdoor cultivation method for Haematococcus pluvialis to improve astaxanthin yield, belonging to the field of Haematococcus pluvialis cultivation technology. The invention includes four main steps: (1) after Haematococcus pluvialis is cultured indoors, it is separated into outdoor GP pipes and cultured under conventional stress for three days, followed by the addition of red-converting culture medium; (2) the carbon dioxide and air ratio is adjusted the next day to adjust the pH value of the algal solution in the GP pipe to between 9.0 and 10.5; (3) when the pH value reaches between 9.0 and 9.5, potassium pyrophosphate is added; and (4) the Haematococcus pluvialis is then cultured outdoors for 11 to 22 days. By adding potassium pyrophosphate during the outdoor cultivation process, this invention effectively improves the synthesis rate of astaxanthin. After adding potassium pyrophosphate and continuing to cultivate for 11 days, the astaxanthin content in the algal solution can reach 5.7%, shortening the cultivation time and accumulating more astaxanthin in a shorter time, thereby improving the astaxanthin yield.
Owner:YUNNAN BOXIN BIOTECHNOLOGY CO LTD

A method for separating and extracting astaxanthin from haematococcus pluvialis

PendingCN122102992AAvoid Agglomeration and Precipitationreduce viscosityOrganic chemistrySolid solvent extractionNatural productSolvent
The present application relates to natural product separation and extraction technical field, specifically disclose a kind of method for separating and extracting astaxanthin with haematococcus pluvialis as raw material, comprising the following steps: (1) haematococcus pluvialis pretreatment preparation haematococcus pluvialis dry powder;(2) using ultrasonic-assisted natural deep eutectic solvent separates and extracts astaxanthin from haematococcus pluvialis dry powder and obtains crude extract;(3) using macroporous resin dynamic adsorption crude extract and purifying and collecting astaxanthin eluate;(4) astaxanthin eluate is concentrated by rotary evaporation under reduced pressure, freeze-dried, and astaxanthin crystal powder is obtained.The method provided by the present application effectively improves the extraction rate of astaxanthin by the ternary synergy of natural deep eutectic solvent, the trans-phase antioxidant synergy of tocopherol and ascorbyl palmitate, and the mild process of ultrasonic-assisted extraction and resin gradient elution, maintains the purity of astaxanthin and the proportion of all-trans astaxanthin, and prolongs the antioxidant retention time of astaxanthin.
Owner:ERFA BIOTECHNOLOGY (JIAXING) CO LTD

Functional compositions, conditioners and uses for treating or preventing bone and joint disorders

The application discloses a functional composition, a conditioner and a use for treating or preventing bone and joint diseases. The composition of the functional composition comprises a first active component and a second active component, wherein the first active component comprises elastin peptide 1-500 mu g / mL, haematococcus pluvialis 40-20 mu g / mL, phyllanthus emblica 8-4 mu g / mL and mussel 1-500 mu g / mL in terms of concentration in the functional composition; and the second active component comprises broccoli water extract and / or boric acid substances. The application realizes the synergistic improvement of glycosaminoglycan and osteocalcin levels by scientific compounding, plays a protective role on joint, cartilage and bone health, and has natural, safe, good biocompatibility and no obvious side effects, and provides a kind of drug or a replacement scheme for bone disease treatment and prevention.
Owner:BEIJING QINGYAN BOSHI HEALTH MANAGEMENT CO LTD

Oxidation-resistant composition containing oriental cherry flower and extract, preparation method and application

The invention relates to the technical field of natural product extraction and antioxidation, in particular to an antioxidation composition containing oriental cherry flowers and extracts, a preparation method and application. The composition comprises an oriental cherry flower extract, collagen peptide, a grape seed extract, haematococcus pluvialis astaxanthin microcapsule powder, vitamin C and vitamin E. By optimizing the extraction process and the compounding proportion of each component, the oxidation resistance and the saccharification resistance are remarkably improved. The preparation method adopts a step-by-step mixing mode to ensure the uniform dispersion of the active components and the stability of the system. The composition can be applied to food tablets or solid beverages, and has excellent free radical scavenging and AGEs generation inhibition effects. The embodiment verifies that the high-efficiency oxidation resistance is achieved, the highest DPPH free radical scavenging rate reaches 92%, and the AGEs generation inhibition rate reaches 95%.
Owner:WUHAN JIANYI BIOTECHNOLOGY CO LTD

Use of esterification genes for esterification of astaxanthin

The application of an esterification gene for esterification of astaxanthin is provided, and belongs to the technical field of bioengineering. The application comprises: using the esterification gene for esterification of astaxanthin, wherein the esterification gene is a diacylglycerol acyltransferase encoding Hpdgtt4 gene of Haematococcus pluvialis. The application of the esterification gene for esterification of astaxanthin provided by the application can assist in producing free astaxanthin strains by using the diacylglycerol acyltransferase encoding Hpdgtt4 gene of Haematococcus pluvialis as the esterification gene, and esterified astaxanthin is obtained.
Owner:OIL CROPS RES INST CHINESE ACAD OF AGRI SCI

Methods for extracting β-nicotinamide mononucleotide from microalgae and microalgae extracts

This disclosure relates to a method for extracting β-nicotinamide mononucleotide from microalgae and the microalgae extract. The method includes: mixing microalgae raw material with an extractant for extraction; wherein the microalgae raw material is selected from one or more of Chlorella, Spirulina, and Haematococcus pluvialis; the extractant comprises 0.05–1.5 wt% of a nonionic surfactant, 0.5–1.0 wt% of an organic acid, 20–40 wt% of an alcohol, and the balance being a solvent. Microalgae raw materials are easy to cultivate, grow rapidly, have high protein content, and high β-nicotinamide mononucleotide content; the extraction method disclosed herein is simple, has a high extraction rate, and is low in cost.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

An engineered yarrowia lipolytica strain for synthesizing astaxanthin, a preparation method and application thereof, a method for producing astaxanthin and a method for improving astaxanthin yield

PendingCN122357314ALycoperseneCyclase
This invention discloses an engineered strain of *Yersinia lipolytica* for synthesizing astaxanthin, its preparation method and application, a method for producing astaxanthin, and a method for increasing astaxanthin yield. The engineered strain of *Yersinia lipolytica* for synthesizing astaxanthin is obtained by expressing phytoene dehydrogenase CarB, phytoene synthase / lycopene cyclase CarRP, β-carotene ketolase CrtW, β-carotene hydroxylase CrtZ, and ferricoxane reductase RFNR in a host strain. RFNR Derived from Chlamydomonas rhinelandii Chlamydomonas reinhardtii Haematococcus pluvialis Haematococcus pluvialis This strain, through heterologous expression of RFNR, efficiently provides reducing power to CrtZ, significantly enhancing the catalytic activity of CrtZ and ultimately achieving higher astaxanthin yield.
Owner:HUNAN CHUNLIN BIOTECHNOLOGY CO LTD

Method for preparing astaxanthin ester crystal and application

The invention relates to the technical field of biology, and particularly discloses a method for preparing an astaxanthin ester crystal and application of the astaxanthin ester crystal. The method for preparing the astaxanthin ester crystal comprises the following steps: (1) performing supercritical extraction on astaxanthin grease extracted from haematococcus pluvialis, and collecting astaxanthin grease to be crystallized in an extraction kettle; (2) dissolving astaxanthin grease to be crystallized in a solvent, and then carrying out cooling crystallization to obtain a crystallization solution; the solvent is ethanol, acetone or ethyl acetate; the cooling crystallization comprises the following steps: stage 1, cooling from 50-60 DEG C to 20-24 DEG C, wherein the cooling rate is 10-15 DEG C / h; stage 2, keeping at 20-24 DEG C for 1-3 hours, adding a reverse solvent and then adding a seed crystal; the reverse solvent is normal hexane or petroleum ether; in the stage 3, the temperature is reduced to 0-5 DEG C from 20-24 DEG C, and the cooling rate is 3-5 DEG C / h; stage 4, keeping at 0-5 DEG C for 3-6 hours; and (3) filtering, washing and drying the crystallization liquid. The content and the yield of the astaxanthin ester crystals are remarkably improved, the crystallization time is short, and the method is suitable for industrial production.
Owner:CHENGUANG BIOTECH GRP CO LTD

Haematococcus pluvialis KM2-1 with function of synergistically enriching organic selenium and astaxanthin and application of haematococcus pluvialis KM2-1

The invention belongs to the technical field of microorganisms, and particularly relates to haematococcus pluvialis KM2-1 with a function of synergistically enriching organic selenium and astaxanthin and application of the haematococcus pluvialis KM2-1. One purpose of the invention is to provide an application of haematococcus pluvialis KM2-1 in enrichment of at least one of organic selenium and astaxanthin in a selenium ion stress environment, the haematococcus pluvialis KM2-1 is preserved in China Center for Type Culture Collection on April 3, 2025, and the preservation number of the haematococcus pluvialis KM2-1 is CCTCC NO: M 2025704. The KM2-1 algal strain has outstanding tolerance (1500 mg.L <-1 >) to inorganic selenium ions, and can keep vigorous growth and metabolism activity in a selenium stress environment with relatively high concentration, so that a biological foundation is laid for efficient selenium enrichment.
Owner:INST OF URBAN AGRI CHINESE ACADEMY OF AGRI SCI

Functional composition with effects of maintaining beauty and keeping young and preparation method thereof

The invention relates to the field of food. In particular to a functional composition for maintaining beauty and keeping young and a preparation method thereof. The functional composition is prepared from haematococcus pluvialis microcapsule powder, an oyster extract, a rhizoma polygonati extract, a liquorice extract, lycium ruthenicum freeze-dried powder, an angelica sinensis extract and an astragalus membranaceus extract. The purposes of maintaining beauty and keeping young are achieved by inhibiting tyrosinase activity and scavenging free radicals. The traditional Chinese medicine components are all composed of medicine and food homology, are analyzed and screened through network pharmacology big data, are mainly matched according to different formulas in the morning and evening, are mainly composed of haematococcus pluvialis micro-capsule powder, oyster extract, rhizoma polygonati extract and liquorice extract in the morning (based on haematococcus pluvialis which is called as' early red 'in color), and have the main functions of maintaining beauty, keeping young and improving memory. At night, the composition is mainly composed of lycium ruthenicum freeze-dried powder, an angelica sinensis extract, an astragalus membranaceus extract and a liquorice extract (based on lycium ruthenicum color called'late black '), and has the main functions of beautifying, repairing and promoting sleep.
Owner:NANJING ZHONGYUANSHENG BIOTECHNOLOGY RES INST CO LTD

Stabilization of avobenzone in cosmetic sunscreens

A cosmetic sunscreen composition comprises avobenzone and one or both of Rosmarinus officinalis (Rosmary) Leaf Extract and Haematococcus pluvialis Extract to stabilize the avobenzone.
Owner:BEIERSDORF AG