293 results about "Plant Sources" patented technology

The invention discloses application of plant-derived extracellular vesicles in preparation of a product for preventing and treating photoaging and a topical application composition. Pseudo-ginseng is used as a raw material for extraction and purification of plant-derived extracellular vesicles, and results show that the pseudo-ginseng-derived extracellular vesicles can significantly treat or improve photoaging. The invention explores the practical application of the fresh pseudo-ginseng extracellular vesicles based on the traditional theory of traditional Chinese medicine, and clarifies the molecular mechanism of the pseudo-ginseng extracellular vesicles. In a word, the extracellular vesicles derived from pseudo-ginseng have a wide application prospect in treatment of skin aging.

The invention discloses a botanical attractant for thrips hawaiiensis in a banana field and application of the botanical attractant. According to the application, alpha-pinene, caryophyllene, DL-limonene, beta-pinene and D-limonene which have a remarkable attracting effect on thrips hawaiiensis are separated and identified from banana flower buds which are host plants of the thrips hawaiiensis, and effective concentrations of the compounds with the attracting effect on the thrips hawaiiensis are screened out; the five compounds are mixed according to a certain volume ratio to prepare the thrips hawaiiensis luring composition. Indoor and outdoor experiments prove that the trapping composition provided by the invention has remarkable trapping activity on thrips hawaiiensis in a banana field. The attractant provided by the invention is derived from plants, is simple to prepare, is environment-friendly, is non-toxic to people and livestock, and has a good popularization and application prospect.

The invention relates to a synergistic composition for preventing and treating celery root rot. The tannic acid and fludioxonil in the synergistic composition disclosed by the invention show a relatively good synergistic effect in a compounding mass ratio range of (1: 50)-(50: 1). According to the synergistic composition disclosed by the invention, tannic acid with weak bacteriostatic activity on celery root rot and fludioxonil with excellent bacteriostatic activity are compounded for use, so that a remarkable synergistic effect is achieved, the prevention and treatment effect is far higher than that of a single agent, and the synergistic effect is achieved by reducing pesticide. Besides, according to the synergistic composition disclosed by the invention, the plant source tannic acid and the chemical bactericide fludioxonil are compounded for use, and the use amount of chemical agents is reduced, so that the resistance risk of the chemical bactericide is reduced, pesticide residues and ecological environment pollution are reduced, and the synergistic composition has a good application prospect.

The present disclosure belongs to the technical field of microorganisms, and in particular relates to a nano-coated growth-promoting bacterial agent and a composite growth-promoting bacterial agent, preparation methods and use thereof. The nano-coated growth-promoting bacterial agent includes a growth-promoting bacterial agent and a nano-coating formed by self-assembly of a plant-derived polyphenol and a soluble multivalent metal ion on the surface of the growth-promoting bacterial agent. The key to the present disclosure is to employ the plant-derived polyphenol and the soluble multivalent metal ion to self-assemble on the surface of the growth-promoting bacterial agent to form a nano-coating. Based on the interaction of the growth-promoting bacterial agent with the phyllosphere, the leaf face adhesion performance of the growth-promoting bacterial agent is significantly enhanced, the loss rate of the growth-promoting bacterial agent under rainfall erosion is effectively reduced, and the survival rate and colonization of the growth-promoting bacterial agent in the phyllosphere are enhanced.

The present disclosure provides a composition containing a purified population of plant-derived exosome-like nanoparticles isolated from tissue of a vascular plant, wherein the exosome-like nanoparticles comprise a tuned cargo comprising a protein signature and an miRNA signature, wherein the tuned cargo of the plant-derived exosome-like nanoparticles is a result of exposure of the plant to combinations of abiotic stress conditions that cause the plant to modulate its signaling pathways and metabolism to ensure its survival in a challenging environment. The tuned cargo of the plant-derived exosome-like nanoparticles can modulate bioactivities of mammalian cells directly or indirectly. The present disclosure also provides a method for improving appearance of human skin and human hair health, including eyelashes and eyebrows, comprising applying a composition comprising the abiotically stressed plant-derived exosome-like nanoparticles containing the tuned cargo and a carrier; and applying the composition topically.

The invention relates to a plant astragalus membranaceus-derived exosome-like nano-vesicle as well as a preparation method and application thereof. The nano-vesicle is prepared by chopping astragalus membranaceus roots, juicing, carrying out differential-ultra-high-speed centrifugation and filtering. The nano vesicle disclosed by the invention has good biocompatibility and immunomodulatory activity, can be used for intervening bronchial asthma, and shows a relatively good treatment effect; the nano-vesicle can be used as a novel natural plant-derived drug delivery system, and the problems of poor stability, single action mechanism, low delivery efficiency and the like of traditional Chinese medicine components are solved.

The invention discloses a soothing and oil-controlling composition derived from natural plants and application thereof, and belongs to the technical field of daily cosmetics. The composition is formed by compounding an artemisia annua extract, a rehmannia root extract, a calendula extract and a pomelo fruit extract, and the four plant extracts have a synergistic effect, have the effects of repairing, relieving and controlling oil, and can be used for preparing a skin care product special for oil-sensitive skin. The composition provided by the invention can effectively solve the problems of external oil and internal dry, redness and sensitivity, grease accumulation and the like of oily sensitive skin, and meets multiple skin care requirements.

The invention relates to application of a plant-derived extracellular vesicle and a compound thereof in preparation of a pharmaceutical composition for treating or preventing diseases caused by high colonization degree of gram-positive bacteria in skin, in particular to application of a purslane extracellular vesicle and a compound of the purslane extracellular vesicle and hydrogel.

The invention discloses a preparation method of a plant source nano vesicle and the plant source nano vesicle. According to the preparation method disclosed by the invention, through extensive and deep research and a large amount of screening optimization, the coix seed-derived nano vesicles (SCDNVs) and the gastrodia elata-derived nano vesicles (RGDNVs) which are high in concentration and high in quality are successfully extracted by using the preparation method disclosed by the invention; meanwhile, the invention further researches the anti-tumor effect and the anti-oxidation effect of the prepared plant source nano vesicle. Through screening of conditions of the preparation method, an ultrasonic combined centrifugal method (further comprising screening of ultrasonic conditions, such as ultrasonic power / ultrasonic time and the like) adopted in the invention can overcome the defects that the membrane structure of the vesicle is damaged and the form of the vesicle is not complete enough in the traditional method; therefore, the plant extracellular vesicles which are small in loss, high in concentration, good in stability, more uniform in vesicle particle size, small in particle size span, high in yield and high in quality are obtained.

To provide an external preparation for skin containing a plant-derived lactic acid bacterium and a specified plant extract.SOLUTION: An external preparation for skin comprises bacterial cells of Lactobacillus casei subsp. casei strain 327 and a specified plant extract.SELECTED DRAWING: None

The invention relates to a plant source biological control agent for controlling cucumber mosaic virus and application thereof. The plant source biological control agent is one or a combination of any two or three of garlic, wedelia chinensis and mikania micrantha. Researches show that the combination of one, any two or three of garlic, wedelia chinensis and mikania micrantha has a remarkable inhibition effect on cucumber mosaic virus, and the combined use effect of garlic, wedelia chinensis and mikania micrantha is remarkably improved. According to the invention, more safe and efficient plant source control agents are provided for controlling plant diseases caused by cucumber mosaic virus, and a foundation is laid for subsequent research and development of novel cucumber mosaic virus resistant plant source pesticides. Moreover, the garlic, the wedelia chinensis and the mikania micrantha are wide in source and low in cost, and have very good application value.

Described herein are solid pigment dispersions that are formulated into a paste consistency during milling to reduce pigment particle size and form a dry granular consistency that is pourable and easy to handle at ambient temperature. This results in stronger, more intense color that can be easily incorporated into a variety of cosmetic products. These pigment dispersions are prepared with plant-derived materials that are derived from naturally occurring, renewable sources.

The present invention provides a polythiol obtained by thiolating a hydroxyl group of a plant-derived polyol.

The invention belongs to the field of plant protection, and discloses a method for inducing bemisia tabaci by a persicaria orientalis volatile matter and a related application of the persicaria orientalis volatile matter to the bemisia tabaci. A Y-type olfactometer behavior experiment shows that the bemisia tabaci has a remarkable chemotactic reaction on the red-knees herb, and the preference of the bemisia tabaci is obviously higher than that of a common host tomato. Furthermore, solid phase microextraction (SPME) is combined with gas chromatography-mass spectrometry (GC-MS) to analyze the smell components of the polygonum hydropiper, and various volatile substances possibly participating in chemotaxis are screened out. The method can be used for developing a plant source smell attractant and improving the pest monitoring and green prevention and control efficiency.

The invention relates to the technical field of cholesterol preparation, and discloses a preparation method of plant-derived cholesterol, which comprises the following steps: 1) heating and dissolving phytosterol with n-amyl alcohol, adding stigmasterol until saturation, cooling and crystallizing, and then carrying out solid-liquid separation to obtain a stigmasterol crude product; 2) heating and dissolving the stigmasterol crude product with absolute ethyl alcohol, adding pyridine, and continuously dropwise adding acetic anhydride for reaction; after the reaction is completed, adding deionized water for mixing, extracting with n-hexane for multiple times, separating an upper-layer oil phase, and concentrating and drying the oil phase to obtain a white solid; 3, the white solid is subjected to oxidation reduction, witting reaction and hydrogenation reaction, and cholesterol is obtained.The method has the advantages that compared with the prior art that the plant source cholesterol is directly prepared from the raw material phytosterol, the process is simplified, and meanwhile the product yield can be increased.

The present invention improves the efficiency of substance introduction when a particle bombardment method is used to introduce, into a plant-derived tissue, at least one substance selected from nucleic acids and proteins for modifying a trait. A method for modifying a plant trait according to the present disclosure comprises: a step for washing a plant-derived tissue with water; a step for introducing, by using a particle bombardment method, particles retaining at least one substance selected from nucleic acids and proteins into the tissue washed with water; a step for obtaining plant bodies by growing the tissue into which the particles have been introduced; and a step for selecting a plant body of which the trait has been modified from the obtained plant bodies.

The invention discloses a phagostimulant capable of improving the prevention and control effect of cotton flower thrips and application of the phagostimulant. The phagostimulant is prepared from the following components in parts by weight: 10 to 30 parts of p-methoxycinnamyl aldehyde, 5 to 40 parts of anisaldehyde, 40 to 70 parts of ethyl nicotinate and 10 parts of a cosolvent. The phagostimulant is prepared from the following components in parts by weight: 10 to 30 parts of p-methoxycinnamyl aldehyde, 5 to 40 parts of anisaldehyde, 40 to 70 parts of ethyl nicotinate and 10 parts of cosolvent. By utilizing the tropism of the cotton flower thrips to specific volatile compounds and through the synergistic effect of the three plant source compounds, pests hidden in stamens, petal wrinkles, leaf backs and other hidden parts are attracted to a pesticide application area, the contact area of insect bodies and the pesticide is remarkably increased, and therefore the prevention and control effect is improved. Field tests show that when an optimal formula (the ratio of p-methoxycinnamaldehyde to anisaldehyde to ethyl nicotinate to the cosolvent is 20: 20: 50: 10) is matched with spinetoram for use, the control effect can reach 84.43%-92.22%, the control effect is remarkably improved compared with that of single use of an insecticide, and a good control effect is shown. The method is safe and environment-friendly, reduces the amount and increases the efficiency, and has remarkable economic and ecological benefits.

The present description relates to a transgenic microorganism capable of converting vegetable oils into olefins. The present description also discloses a process for obtaining such hydrocarbons from triglycerides or free fatty acids of plant origin, which is carried out by the microorganism disclosed in the present description.

The invention discloses a botanical bactericidal and insecticidal composition as well as a preparation method and application thereof, and relates to the technical field of substitutes of insecticidal adjuvants. The botanical bactericidal and insecticidal composition consists of the following components in parts by mass: 20-50 parts of a plant extract, 30-60 parts of a solvent, 5-20 parts of an auxiliary agent and 5-10 parts of an insecticidal adjuvant. By replacing traditional chemical pesticides with plant source components, environmental residues and non-target biotoxicity are effectively reduced, and harm to a human body and an ecological system is reduced. The plant extract and the deuterated insecticidal adjuvant synergistically enhance the bactericidal and insecticidal effects through multiple action mechanisms, delay the generation of drug resistance of pests and expand the control spectrum. The introduction of a deuterated structure significantly improves the stability of the active component, prolongs the duration of the drug effect, reduces the drug application frequency, and adapts to complex environmental conditions.

The present application relates to a kind of composition capable of relieving fatigue-related emotional fluctuation and anxiety and its application.The composition includes: and magnolol, ergothioneine, ginsenoside and plant extract;The plant source of the plant extract includes eucommia leaf and schisandra chinensis.The above components cooperate with each other, and have significant synergistic effect in relieving tension, anxious mood and anti-depression.

The invention belongs to the field of pesticides, and particularly relates to a botanical weeding composition which comprises an active component A and an active component B, the active component A is paeonol or artesunate, the active component B is 7-ethyl camptothecin, and the mass ratio of the active component A to the active component B is (1: 10)-(10: 1). The botanical herbicidal composition has excellent herbicidal activity on barnyard grass, nutgrass flatsedge and sticktight due to the synergistic effect of the two components, and can be directly developed into a botanical herbicidal active component composition for preventing and controlling gramineae, nutgrass flatsedge and broadleaf weeds in farmland.

The application discloses a process for producing resveratrol by fermentation of Yarrowia lipolytica, and belongs to the technical field of microorganisms. Through a series of fermentation condition optimization, including adjustment of the basic medium composition, concentration, feeding composition, pH and feeding mode. The fermentation yield after adjustment is increased from 6g / L at the beginning to 22g / L, and the purity of the extracted resveratrol is greater than 80%, which solves the problems of insufficient yield, difficult extraction and low purity compared with resveratrol from plants.

The invention discloses a botanical formula of a gerbera jamesonii thrip repellent and a preparation method thereof, and belongs to the technical field of botanical pesticides. The formula comprises the following components in parts by weight: 30-35 parts of tea saponin, 30-35 parts of cynanchum komarovii, 15-20 parts of rangooncreeper fruit, 5-8 parts of menthol, 3-5 parts of wormwood extract, polyoxyethylene sorbitan monooleate, ethylene glycol, citric acid or sodium hydroxide and the balance of deionized water, and the proportion of each core component in the optimal formula is accurately optimized. The preparation method comprises the steps of raw material pretreatment, ultrasonic-assisted extraction, slow fire decoction and filtration, concentration, compounding and emulsification, canning and storage and the like, and key process parameters are optimized to guarantee the extraction rate of effective components and product stability. Through the synergistic effect of multiple components, the thrip repellent rate reaches 95.3%-97.8%, the thrip repellent has a remarkable repellent effect on trialeurodes vaporariorum and red spiders, the lasting period is prolonged to 14-18 days, and the thrip repellent is suitable for various flowers and planting scenes.

The application discloses application of plant-derived extracellular vesicles in preparation of products for preventing and treating photoaging and a local application composition. The application takes Panax notoginseng as raw material to extract and purify the plant-derived extracellular vesicles, and the results show that the extracellular vesicles derived from Panax notoginseng can significantly treat or improve photoaging. The application explores the practical application of extracellular vesicles of fresh Panax notoginseng based on traditional Chinese medicine theory, and clarifies the molecular mechanism of the extracellular vesicles. In general, the extracellular vesicles derived from Panax notoginseng have wide application prospects in treatment of skin aging.

The invention relates to the technical field of wood mildewproof agents, in particular to a microcapsule-coated wood mildewproof agent based on plant source extracts and a preparation method of the microcapsule-coated wood mildewproof agent. According to the preparation method, various medicaments such as chitosan, glacial acetic acid, span80 and glutaraldehyde react with a plant source extract to prepare the wood mildew preventive which can endow wood with hydrophobicity, mildew resistance, thermal stability and the like at the same time, the wood mildew preventive combines a conventional plant source mildew preventive with a microcapsule technology, the efficient and environment-friendly characteristics of the plant source mildew preventive are reserved, and meanwhile, the wood mildew preventive has a good application prospect. And the problems of poor stability and short timeliness of natural extracts are solved, so that the mildew preventive can efficiently and stably play a role in a long-acting manner in an environment-friendly manner, and the lasting mildew prevention effect on wood is successfully achieved. The agent is wide in raw material source, low in price and simple to prepare, and can be used for mildew-proof treatment of wood structure buildings.

The invention is suitable for the technical field of insecticides, and provides a botanical insecticide and a preparation method thereof.The botanical insecticide comprises, by mass, 0.8%-2% of a component A, 14.2%-16.5% of a component B, 11%-22% of a component C and the balance water; the component A comprises a porphyrin compound, veratramine and azadirachtin, and the mass ratio of the porphyrin compound to the veratramine to the azadirachtin is (1-2): (4-6): (5-7). The botanical insecticide provided by the invention realizes high-efficiency, environment-friendly and low-toxicity pest control effects; through mutual cooperation of multiple insecticidal modes, the problems that in the prior art, an insecticide is single in insecticidal technology, and insecticide resistance of pests is prone to being generated after long-term use are solved, and a safer and sustainable pest control solution is further provided.

The plant source insecticide contains effective components of parathion and avermectin, the weight ratio of parathion and avermectin is 10-50:1, and is supplemented with an acceptable agricultural adjuvant to form one of emulsifiable concentrate, wettable powder, water dispersible granule, water emulsion or suspension agent suitable for agricultural use, and belongs to the field of pesticides. The plant source insecticide shows activity on peridroma saucia, aphid and cotton red spider, especially high acaricidal activity on red spider. The prevention and treatment effect on citrus red spider is obviously improved after parathion and avermectin are compounded, which shows that the combination of parathion and avermectin has significant synergistic effect on citrus red spider. Parathion is derived from Chinese herbal medicine plant, and there is no problem of pesticide residue, and the risk of drug damage is greatly reduced. At the same time, the two single agents of the composition have great difference in chemical structure and completely different action mechanism, and there is no cross resistance, which can delay the resistance problem caused by the use of the two single agents alone.

The present invention provides compositions comprising modified plant-derived polypeptides, and at least one hydrolase and / or a crosslinking enzyme, which composition is capable of forming hydrogels, emulsions and foams, and methods for their preparation.