664 results about "Oleic Acid Triglyceride" patented technology

The invention provides a diglyceride oil composition for reducing lactone as well as a product and a preparation method thereof, and relates to the technical field of functional grease processing. The preparation method of the diglyceride oil composition comprises the following steps: (1) mixing corn oil and high oleic acid peanut oil, adding glycerol and water, then adding rhizomucor miehei lipase and pseudomonas onions lipase, and reacting to obtain a material A; (2) mixing sea buckthorn seed oil, acer truncatum seed oil and rapeseed oil, adding glycerol and water, adding candida antarctica lipase B and rhizopus oryzae lipase, and reacting to obtain a material B; and (3) mixing the material A and the material B, heating and centrifuging, taking an upper-layer oil sample, and distilling under a vacuum condition to obtain the diglyceride oil composition. The diglyceride oil composition prepared by the invention has a good effect in the aspect of reducing the internal fat.

The invention discloses a novel application of a composition of oleic acid, linoleic acid and Brusol or gemcitabine. According to the invention, oleic acid and linoleic acid are combined with different anti-tumor drugs, a pharmaceutical composition with a synergistic effect is screened out, and test results show that when oleic acid and linoleic acid in a specific proportion are combined with Brusol or gemcitabine, unexpected synergistic anti-pancreatic cancer activity can be obtained. The composition is expected to be developed into a new antitumor drug, can reduce the dosage of the antitumor drug, reduce drug resistance, reduce adverse reactions and improve the life quality of patients, and has important application prospects.

This invention discloses a method for preparing low-GI special dietary noodles, belonging to the field of special dietary food development. This invention screens negatively charged dietary polysaccharides and constructs a tightly packed quaternary network structure based on amylose, oleic acid, protein, and dietary polysaccharides. It prepares an amylose-oleic acid complex (complex 1) and a complex 1-protein ternary network (complex 2) stepwise, and then regulates the cooking process to form a complex 2-dietary polysaccharide quaternary network (complex). This invention significantly reduces the GI value of the noodles and improves their texture.

The invention discloses a horse milk-derived small molecule peptide, the amino acid sequence of which is Met-Ser-Pro-Phe (MSPF), and the molecular weight of which is 480.571 Da. The small molecule peptide disclosed by the invention has the activity of inhibiting pancreatic lipase (PL), the inhibition rate on the pancreatic lipase is 61.44%, and the accumulation of the content of triglyceride (TG) in oleic acid-induced human liver cancer (HepG2) cells can be reduced, so that the small molecule peptide can be used for inhibiting the pancreatic lipase (PL). The small molecule peptide can be applied to preparation of preparations for treating or assisting in treating hyperlipidemia and obese people, is simple to prepare, and is suitable for industrial production and market popularization and application.

The invention relates to the technical field of physical property analysis, in particular to a rapeseed oil quality detection method and device and a storage medium. Determining Raman spectrum data of the rapeseed oil sample based on the oleic acid concentration and the erucic acid concentration; determining a peak intensity contribution coefficient based on the Raman spectrum data; based on the oleic acid concentration, the erucic acid concentration and the peak intensity contribution coefficient, constructing a rapeseed oil quality detection model; and performing quality detection on Raman peak characteristics of to-be-predicted rapeseed oil based on the rapeseed oil quality detection model to obtain a detection result of the to-be-predicted rapeseed oil. According to the method, the prediction precision of the rapeseed oil quality is improved.

A German cockroach glue trap comprising a dark colored base and lid. The base having an overall height between 25 mm and 40 mm. Openings through the base have a diameter between 3.5 mm and 4.5 mm, large enough for German cockroaches to enter but not too large to let in too much light. The centers of the lowest openings having heights preferably between 6 mm and 10 mm above a floor preventing touching the glue before being caught and allowing escape. A ceiling at least 7 mm above the centers of the highest openings preventing climbing to the ceiling. The openings are in thin walls not providing a shelf for the German cockroaches to linger and detect a scent (oleic acid) of dead cockroaches which repels additional German cockroaches from entering the trap. A layer of glue resides on the floor and a second layer of glue may reside on the ceiling.

The invention discloses a KASP molecular marker related to brassica napus quality traits and application of the KASP molecular marker, and belongs to the technical field of molecular genetics. According to the KASP molecular marker related to the brassica napus quality traits, the primers of the KASP molecular marker and the application of the KASP molecular marker and the primers in brassica napus genetic typing or quality traits identification, results show that the KASP molecular marker can accurately identify genotypes, is high in sensitivity and specificity and effectively reduces the error rate. The invention also discloses a brassica napus genotyping / quality identification method, and the result shows that the material with the genotyping result of AA has the characteristics of low erucic acid content, low thioglycoside content, high oleic acid content, high linoleic acid content, low arachidonic acid content and low protein content; gG-type materials exhibit high erucic acid, high thioglycoside, low oleic acid, low linoleic acid, high arachidonic acid and high protein content. Individuals with excellent quality characters can be rapidly screened in early generations, and the long process of character identification after plant maturation in traditional breeding is avoided.

The invention provides a method for accurately regulating and controlling the light-emitting wavelength of a mixed halide pure red light perovskite quantum dot, and belongs to the technical field of photoelectric display, and the method specifically comprises the following steps: preparing a first precursor solution based on cesium carbonate, preparing a second precursor solution based on PbI2 and ZnI2, and respectively heating; injecting oleic acid and oleylamine into the second precursor solution, heating, injecting the first precursor solution into the second precursor solution, cooling, heating again, injecting hydrobromic acid to obtain a mixed halogen perovskite quantum dot coarse solution, and centrifuging for multiple times to obtain a CsPbI3-mBrm quantum dot solution. The bromine source is introduced after the quantum dots are formed, accurate regulation and control of the light-emitting wavelength of the pure red light perovskite quantum dots are achieved, the light-emitting requirement of high-color-purity red light is met, and the quantum dots are one of ideal choices of high-efficiency photoelectric devices and display technologies in the future.

The invention relates to a high-performance reactive asphalt cold patch mixture and a preparation process thereof. The mixture comprises a sulfonated fatty acid diluent, a graded aggregate, an atomic layer deposition (ALD) modified basalt aggregate and a solid waste-based composite curing agent. The sulfonated fatty acid diluent is prepared by sulfonating oleic acid, linoleic acid and palmitic acid through sulfamic acid, the sulfonation degree is 15-20%, and the sulfonated fatty acid diluent contains an epoxy three-membered ring structure; the 3-5mm aggregate is used as a transition layer to block the caking path of the fine aggregate; the basalt aggregate is subjected to TDMAT and TMA alternate deposition to form a Ti < x > Al < gamma > O < 2 > nano film; the curing agent comprises calcium strontium sulphoaluminate minerals, a titanium gypsum-carbide slag compound and magnesium-loaded lithium slag. During preparation, the modified aggregate, the sulfonated diluent and the curing agent are mixed at normal temperature. The problems that a traditional cold repairing material is poor in low-temperature fluidity and weak in interface bonding are solved, the viscosity at-20 DEG C is smaller than or equal to 450 mPa.s, the 7-day strength is larger than or equal to 5.2 kN, and the cold repairing material is suitable for low-temperature emergency repairing.

Disclosed herein is a method for producing a lipid or oil in a plant, the method comprising genetically modifying the plant to express a plurality of heterologous proteins selected from PaWRI1, PaWRI2, PaDGAT1, or PaPDAT1, or variants thereof. The expression of the plurality of heterologous proteins in the genetically modified plant may result in a change in the nutrient profile of the plant relative to non-genetically modified plants of the same species. Also disclosed herein is a method for producing fatty acid and triacylglycerol content in plant non-seed tissue. Further disclosed herein is a method for producing a genetically modified plant.

The present application relates to the technical field of peanut oil extraction, and particularly relates to a method for extracting peanut oil with high oleic acid and original flavor, comprising the following steps: S1, screening: screening the peanut raw material subjected to peeling treatment by using a vibrating screening device to screen out impurities in the peanut raw material, so as to obtain peanut raw material; S2, pretreatment: sequentially subjecting the screened peanut raw material to three-stage low-temperature gradient drying, and using infrared auxiliary dehydration, and controlling the total water content at 3%-4%; the method for extracting peanut oil with high oleic acid and original flavor, by adding starch-chitosan composite liquid, the starch-chitosan composite liquid is compounded by natural ingredients and strengthened by nano structure, realizing multiple functions of antioxidation, bacteriostasis and physical barrier, while retaining the original flavor of peanut oil, significantly improving the stability of oleic acid, and having clear technical effect and industrialization potential.

The invention discloses a method for improving the survival rate of probiotics based on cell membrane regulation and control. The method comprises the following steps: adding a lipid component in a probiotic culture process and / or adding the lipid component as a protective agent after probiotic culture, the lipid component added in the probiotic culture process comprises cytidine diphosphate diacylglycerol and / or stearic acid; the lipid component added as the protective agent after culture comprises cardiolipin and / or oleic acid. The method breaks through the research category of a traditional optimized freeze drying process (such as a protective agent and parameters), and key lipid molecules directly related to resistance are screened out through a lipidomics means and establishment of a screening method of stress resistance related lipid molecules; through a dual mode of supplementing key lipid components and precursor substances thereof, the tolerance of the strain is improved from the metabolic level, and the freeze-drying resistance and the survival rate of the strain are remarkably improved.

The invention provides low-viscosity high-wear-resistance vehicle engine oil and a preparation method thereof, and belongs to the technical field of engine oil. According to the preparation method, an ionic liquid group is introduced through a reaction, a nano interlayer compound is constructed by combining surface modification of a metal-ionic liquid complex and silicon dioxide nanoparticles, and a microcapsule structure is formed through coating of a urea-formaldehyde prepolymer; the ionic liquid group provides a low friction coefficient and thermal stability, the silicon dioxide nanoparticles provide physical isolation and wear-resistant protection, and the microcapsules realize controlled release and dynamic repair of the lubricating components; a skeleton polymer is prepared through a reaction of polyamidoamine and epoxy chloropropane so as to provide abundant active sites, and oxidation resistance is improved through a synergistic effect of the skeleton polymer, hindered phenol and calixarene; by combining oleic acid modified nanoparticles, the dispersity and the wear resistance are enhanced, and meanwhile, dynamic protection is provided on a friction interface; the synergistic effect prolongs the service life of the engine oil and improves the high-temperature stability of the engine oil.

The invention relates to the technical field of nutritional foods, and particularly discloses a nutritional composition for improving muscle functions and application. The nutritional composition for improving the muscle function, provided by the invention, is prepared from the following components in parts by mass: 40 to 60 parts of 1, 3-dioleic acid-2-palmitic acid triglyceride and 20 to 70 parts of 1-oleic acid-2-palmitic acid-3-linoleic acid triglyceride. A specific amount of OPO and OPL are compounded, and the two components have a synergistic effect, so that the exercise amount and the ATP content of an organism are remarkably increased, sarcopenia is relieved by improving energy metabolism, the muscle function is improved, and the food has a wide application prospect in the field of food and is worthy of popularization and application. The food can be used in health-care food, formula food for special medical purposes, infant formula food or special diet food.

The invention relates to a multi-element compound corrosion inhibitor for offshore CO2 oil displacement as well as a preparation method and application of the multi-element compound corrosion inhibitor. The invention relates to a multi-element compound corrosion inhibitor for offshore CO2 oil displacement, which is characterized by comprising 8 to 10 weight percent of oleic acid imidazoline quaternary ammonium salt, 8 to 10 weight percent of oleic acid imidazoline lauric acid amide, 4 to 6 weight percent of potassium iodide, 4 to 6 weight percent of octylphenol polyoxyethylene ether, 4 to 6 weight percent of dodecyl dimethyl tertiary amine, 4 to 6 weight percent of assistant A, 4 to 6 weight percent of assistant B and the balance of absolute ethyl alcohol. According to the multi-element compound corrosion inhibitor for offshore CO2 oil displacement as well as the preparation method and the application of the multi-element compound corrosion inhibitor, the multi-element compound corrosion inhibitor contains a plurality of components and can effectively inhibit CO2 corrosion at a high temperature.

The invention discloses a low-rank coal composite flotation reagent and a preparation method and application thereof, and belongs to the technical field of coal flotation of mineral processing. The agent specifically comprises a composite collecting agent and a composite foaming agent, and the composite collecting agent comprises kerosene, n-dodecane, oleic acid, dimer acid, sodium stearate, terpilenol, diethyl phthalate, alkylphenol ethoxylates, span-80, trioctyl phosphate and 2-ethylhexanol. The composite foaming agent is prepared from the following components: terpilenol, terpenic oil, sec-octyl alcohol and sodium alpha-olefin sulfonate. Compared with a traditional single flotation reagent combination, the composite flotation reagent has a remarkable effect in fine coal flotation, and particularly when coal with the particle size smaller than 0.5 mm is treated, the flotation efficiency, the clean coal yield and the combustible body recovery rate can be effectively improved. More importantly, the medicament is stable at normal temperature, the layering phenomenon is avoided, the long-term effectiveness is ensured, and the medicament has extremely high industrial application potential.

The invention discloses a preparation method of bio-based modified silicone oil, which comprises the following steps: uniformly mixing vegetable fat, allyl polyether and siloxane, heating to 100-120 DEG C, adding a catalyst, and reacting while stirring to obtain the bio-based modified silicone oil, the vegetable fat is selected from one or more of vegetable oleic acid methyl ester to vegetable oleic acid decyl ester. According to the bio-based modified silicone oil disclosed by the invention, conventional silicone oil is modified by adopting vegetable fat, so that the environment-friendly performance is improved, and meanwhile, the bio-based modified silicone oil is applied to a polyurethane material, and the related performance of the polyurethane material can be effectively improved; meanwhile, the allyl polyether is added, so that the compatibility and the stability of the system can be further improved.

This invention provides a safe, environmentally friendly and solvent free method for dispersing graphene into polymeric compositions. In this process solid particles of graphene in a fatty acid matrix are mixed into the polymeric composition. The use of these solid graphene containing particles does not create dust while being mixed into the polymer and can much more easily be mixed into the polymer. Since fatty acids, such as stearic acid, palmitic acid, and oleic acid, are frequently incorporated into the polymeric formulations used in making a wide variety of products, this technique also offers a good method for introducing the fatty acid into the polymeric formulation. In such fatty acid containing polymeric formulations this technique also offers the advantage of not introducing unwanted solvents or agents into the formulation.

The present application belongs to the technical field of polyester oil agent, and particularly relates to a smoothing agent for polyester FDY spinning oil agent. The smoothing agent for polyester FDY spinning oil agent comprises the following components in parts by weight: 20-30 parts of fatty acid ester; 15-20 parts of polyether modified oleic acid; and 10-15 parts of modified amino silicone oil. The smoothing agent provided by the present application comprises the components of fatty acid ester, polyether modified oleic acid and modified amino silicone oil, the polyether modified oleic acid and the modified amino silicone oil help to improve the comprehensive performance of the smoothing agent, endow the smoothing agent with excellent smoothness, wettability and high-temperature resistance, and are used in the polyester FDY oil agent, have high oil film strength, can also improve the antistatic performance and the flame retardant performance of the oil agent, and are suitable for being specially used in flame-retardant polyester fully drawn yarn oil agent.

The invention belongs to the technical field of natural products, and provides application of fucoxanthin in preparation of oral anti-alopecia drugs. Animal experiments find that long-term high-fat diet can lead to large-piece shedding of hair accompanied by skin inflammation, and fucoxanthin has a treatment effect on high-fat diet induced mouse back hair shedding and skin inflammation, can obviously relieve high-fat diet induced subcutaneous cholesterol crystal accumulation and sebaceous gland cell hypertrophy, and has the effects of preventing and treating the high-fat diet induced mouse back hair shedding and skin inflammation and preventing and treating the high-fat diet induced mouse back hair shedding and the high-fat diet induced sebaceous gland cell hypertrophy. And skin epidermal hyperplasia and cuticle thickening induced by high fat diet can be improved. Besides, cell experiments also find that fucoxanthin intervention can reduce oleic acid infiltration of the hair follicle stem cells and reduce oleic acid induced death and apoptosis of the hair follicle stem cells, and prove that fucoxanthin has a protection effect on the hair follicle stem cells, has low toxic and side effects on cells and animals as a natural algae extract, and has a good application prospect. Good clinical application prospects are realized.

The invention discloses a preparation method of fermented peony seed oil. The fermentation process is optimized, different strains such as lactic acid bacteria, saccharomycetes and bifidobacteria are innovatively combined for multiple times of fermentation, and the lactic acid bacteria and saccharomycetes mixed strains are used for primary fermentation, so that components are preliminarily decomposed, and the viscosity is reduced; a bifidobacterium strain is used for secondary fermentation, so that the components are further optimized. After fermentation, supercritical CO2 extraction and freezing purification are performed to obtain the high-quality peony seed oil. According to the process, the content of monounsaturated fatty acid oleic acid in the peony seed oil is increased to 80.06%, the content of polyunsaturated fatty acid linoleic acid and linolenic acid is reduced, the product stability is improved, the skin feeling is fresh and cool when the peony seed oil is used, the permeation rate is increased, the DPPH free radical scavenging rate is increased, and the peony seed oil has an anti-eczema effect.

The invention belongs to the technical field of lubricating oil manufacturing, and relates to composite lubricating oil used in an aluminum rolling process, which comprises the following components in parts by mass: 94-96 parts of base oil, 0.5-1.5 parts of an oiliness agent, 0.5-0.8 part of an extreme pressure anti-wear agent, 0.5-1.5 parts of a wear-resistant antioxidant, 0.5-2 parts of oleic acid diethanolamide and 0.5-1 part of an antirust agent. On the basis of the prior art, nano-sheet molybdenum disulfide is introduced and added into 2-aminoterephthalic acid and nickel nitrate to react to prepare a modified metal organic framework, then carnosic acid is grafted through an amide reaction to prepare the wear-resistant antioxidant, and a protective film can be formed on a friction interface through a sheet structure of molybdenum disulfide, so that the friction coefficient is reduced; the wear resistance is improved; a compact passive film is formed on the surface of aluminum metal through the synergistic effect of the extreme pressure anti-wear agent and the wear-resistant antioxidant, and the corrosion resistance and wear resistance of the composite lubricating oil used in aluminum plate rolling are improved.

The present invention relates to the field of cell culture, and particularly to a serum-free induction adipogenic differentiation medium for fish stem cells and its application. It is composed of a basal medium and a combination of cell culture cofactors; the basal medium is one of DMEM and DMEM / F12 medium; the combination of cell culture cofactors consists of oleic acid, soybean lecithin, vitamin C phosphate, β-cyclodextrin, transferrin, saikosaponin A, bakuchiol, dehydroabietic acid, and phenyl lactic acid. By adding the combination of cell culture cofactors, the present invention replaces the serum in the traditional adipogenic induction differentiation medium for preadipocytes and the core component dexamethasone IBMX in the traditional adipogenic differentiation "cocktail", and obtains a medium suitable for serum-free induction adipogenic differentiation of fish stem cells, which not only solves the bottleneck problems of the prior art, but also provides reliable technical support for the large-scale production of cell-cultured fish meat.

The invention relates to the technical field of flotation, and discloses a spodumene flotation reagent and a preparation method thereof, and the spodumene flotation reagent comprises sulfonated oleic acid, phosphonic acid modified oleic acid hydroximic acid, peroxyoleic acid soap, fatty acid polyoxyethylene ether, polyether amine and an alcohol compound. According to the flotation reagent provided by the invention, the phosphonic acid modified oleic hydroximic acid is introduced, so that the phosphonic acid modified oleic hydroximic acid and spodumene can form a stable chelate on the basis of retaining the collecting property of carboxylic acid groups, and the problem of poor selectivity caused by single addition of oleic acid can be avoided; and by introducing sulfonated oleic acid, fatty acid polyoxyethylene ether and polyether amine, the collecting capacity of metal ions on the surface of spodumene can be enhanced, and flotation is facilitated.

The invention belongs to the technical field of catalysts, and discloses a catalyst for preparing high-purity oleic acid as well as a preparation method and application of the catalyst. According to the catalyst for preparing the high-purity oleic acid, a SiO2 molecular sieve serves as a carrier, Pd and Pt serve as active components, and the molar ratio of Pd to Pt is 3: 2-4: 1. According to the invention, by controlling the carrier, the active component and respective dosages, the prepared catalyst can perform selective hydrogenation on vegetable oil containing linoleic acid and / or linolenic acid to obtain high-purity oleic acid.

The invention discloses a nanometer emulsion based on a citrus extract and a preparation method of the nanometer emulsion. The nano-emulsion takes citrus pectin as a main chain, gallic acid, ascorbic acid-phosphate and oleic acid are sequentially grafted, the oleic acid is lipophilic, the rest is hydrophilic, and the amphiphilic pectin can form the whitening nano-emulsion which can be stably stored for a long time. The natural citrus extract is used for replacing traditional synthetic components, has the anti-oxidation, whitening and anti-inflammatory effects, can reduce the skin sensitivity risk, and conforms to the green beauty makeup trend; meanwhile, the oil phase is anchored by a hydrophobic block, steric hindrance is formed by a hydrophilic block, the stability of the emulsion is remarkably improved, and the shelf life is prolonged to 24 months; phenolic acid and ascorbic acid contained in the traditional Chinese medicine composition can effectively scavenge free radicals, inhibit tyrosinase activity, reduce melanogenesis and reduce release of a proinflammatory factor IL-6; the composition is low in cost, environment-friendly, suitable for the fields of cosmetics and medicines and wide in market prospect.

The invention belongs to the technical field of polyester oil, and particularly relates to a smoothing agent for polyester FDY spinning oil. The smoothing agent for the polyester FDY spinning oil comprises the following components in parts by weight: 20-30 parts of fatty acid ester; 15-20 parts of polyether modified oleic acid; 10-15 parts of modified amino silicon oil; the smoothing agent provided by the invention comprises the fatty acid ester, the polyether modified oleic acid and the modified amino silicon oil, the polyether modified oleic acid and the modified amino silicon oil are beneficial to improving the comprehensive performance of the smoothing agent, the smoothing agent is endowed with excellent smoothness, wettability and high temperature resistance, and when the smoothing agent is used in a polyester FDY oiling agent, the oil film strength is high, and the lubricating property is good. The antistatic property and the flame retardant property of the oiling agent can be improved, and the oiling agent is suitable for being specially used for the flame-retardant polyester fully-drawn yarn oiling agent.

The invention belongs to the technical field of cosmetics, and particularly relates to a mask formula and a processing method thereof, the mask formula takes natural active ingredients as a core, and multiple skin care advantages are realized through scientific proportioning and an innovative process. A film forming system adopts a sodium alginate and hydroxypropyl methylcellulose compounding technology to form an air-permeable film, so that the air-permeable film can be tightly attached to the skin to promote absorption, and the skin stuffiness feeling of a traditional mask is avoided; cold-pressed camellia-seed oil is selected as a matrix, high-content oleic acid of the cold-pressed camellia-seed oil is highly matched with a sebum structure, and a bionic lipid barrier is formed by matching with ceramide, so that the water locking and repairing capability is remarkably improved. Microencapsulated nicotinamide and concentrated portulaca oleracea extract are creatively applied in an active system to achieve synergistic interaction, the microencapsulated nicotinamide continuously whitens skin and fades spots through a slow release technology, and the concentrated portulaca oleracea extract contains flavonoid compounds to accurately relieve inflammation and reduce sensitivity risks.

The invention relates to the technical field of oil gas well tracing monitoring, in particular to a preparation method and application of an oil gas well tracing monitoring magnetic nano tracer agent. Comprising the following steps: dissolving FeCl3, FeSO4. 7H2O and doped metal salt in water, and introducing N2 to remove oxygen; the initial reaction temperature is 85 DEG C, rapidly adding ammonia water, reacting to generate Fe3O4 nanoparticles, doping elements, reducing the temperature to 60 DEG C, and firstly adding sodium citrate for primary carboxyl modification; adding a mixed solution of oleic acid and PEG twice; the pH value of the reaction system is controlled to be 9.5-10.5 in the whole process. The method has the beneficial effects that the doping amount is remarkably increased, the doping amount of doped elements is multiple times of that in the prior art, and the detection sensitivity is remarkably improved; in addition, oleic acid / PEG composite modification is adopted instead of single citric acid modification, so that the tracer is kept stably dispersed in high-salinity formation water; the superparamagnetism facilitates magnetic separation and recovery, and is suitable for harsh formation conditions.

The present invention relates to an artificially manipulated unsaturated fatty acid biosynthesis-associated factor and use thereof to increase the content of a specific unsaturated fatty acid of a plant body. More particularly, the present invention relates to a system capable of artificially controlling unsaturated fatty acid biosynthesis and a plant body produced thereby, which include an artificially manipulated unsaturated fatty acid biosynthesis-associated factor to control unsaturated fatty acid biosynthesis and a composition capable of artificially manipulating the factor. In a specific aspect, the present invention relates to artificially manipulated unsaturated fatty acid biosynthesis-associated factors such as FAD2, FAD3, FAD6, FAD7 and FAD8 and / or an unsaturated fatty acid biosynthesis controlling system by an expression product thereof.