68 results about "Moringa pterygosperma" patented technology

The invention discloses a composition for reducing blood pressure, blood sugar and blood fat, and belongs to the technical field of food processing. The moringa oleifera health-care food is prepared from moringa oleifera leaf powder, mulberry leaf powder, wall-broken ganoderma lucidum spore powder, passion fruit powder, prune powder, sea buckthorn powder, roxburgh rose powder, acerola cherry powder, angelica keiskei powder, corn stigma extract, perfume lemon powder, cyclocarya paliurus extract, radix puerariae extract, globe artichoke extract, lecithin, enzymes, OMEGA-3, arabinose and fructo-oligosaccharide. The plant composition which is sour with sweetness and good in taste is prepared by compounding and seasoning all edible raw materials such as glucosyl stevioside / hesperidin, the plant composition has good effects of reducing blood pressure, blood sugar and blood fat, and the adopted raw materials are healthy, non-toxic, easy to obtain, non-toxic to human bodies, especially livers, suitable for popular use and good in application prospect.

The invention relates to the technical field of skin care product raw materials, and particularly discloses a soothing anti-inflammatory composition as well as a preparation method and application thereof. The preparation method of the soothing anti-inflammatory composition comprises the following steps: step 1) mixing saffron crocus, radix sophorae flavescentis, houttuynia cordata, moringa seeds and astragalus membranaceus to obtain a composite raw material; the invention discloses a soothing and anti-inflammatory composition and a preparation method thereof.The soothing and anti-inflammatory composition and the preparation method thereof.The soothing and anti-inflammatory composition has the advantages that soothing, anti-inflammatory and skin barrier repairing effects are further improved.

The invention discloses a composite stable moringa oleifera polysaccharide cadmium-resistant preparation as well as a preparation method and application thereof, and relates to the technical field of cadmium-resistant preparations. The cadmium blocking preparation is composed of moringa oleifera polysaccharide, a compound stabilizer and a phosphate buffer solution, the compound stabilizer is composed of sodium alginate and nano silicon dioxide according to the mass ratio of 1: (1.0-1.5), and the pH value of the preparation is 6.0-7.0. The moringa oleifera polysaccharide is applied to cadmium prevention and control of Chinese cabbages in alkaline cadmium-polluted soil (pH 6.5-7.5), and accurate regulation and control are achieved in a rhizosphere irrigation mode. The sodium alginate-nano silicon dioxide composite stabilizer system synergistically exerts the dual functions of dispersion stability and slow release protection, and ensures that the moringa oleifera polysaccharide keeps activity in the soil environment. The preparation has the advantages of being small in dosage, low in cost, easy and convenient to operate, environmentally friendly and the like, a scientific and feasible technical scheme is provided for safe utilization of cadmium-polluted farmland in the alkaline soil area, and the preparation has important application value and popularization prospects.

The invention discloses a tenuilia microspora NB1-3, a leavening agent and application of the tenuilia microspora NB1-3 in preparation of caragana microspora and moringa oleifera fermented protein feed. The strain is classified and named as nicotiana microspora, and is preserved in the China Center for Type Culture Collection (CCTCC), and the preservation number is CCTCC NO: M 20251872. The core of the method is that crude fibers and antinutritional factors (tannin and phytic acid) in moringa oleifera and caragana microspora are efficiently degraded by utilizing a strong lignocellulose degrading enzyme system of the tenuilia microspora NB1-3, and meanwhile, the crude protein content of the feed is increased. The prepared fermented protein feed is high in crude protein content and low in crude fiber content and meets the protein feed standard, efficient and high-value utilization of woody plant resources such as caragana microphylla and moringa oleifera is achieved, and a new high-quality and economical protein feed source is provided for animal husbandry.

The invention discloses a moringa oleifera peptide-based cadmium blocking agent and application thereof. The preparation is composed of moringa oleifera peptide (the mass volume concentration is 30-120 mg / L), a compound stabilizer (the mass volume concentration is 20-60 mg / L) and a phosphate buffer solution, the compound stabilizer is composed of sodium alginate and nano silicon dioxide according to the mass ratio of 1: (1.0-1.5), and the pH value of the preparation is 6.0-7.0. The moringa oleifera peptide is innovatively applied to cadmium prevention and control of Chinese cabbages in northern alkaline cadmium-polluted soil (pH is 6.5-7.5), accurate regulation and control are achieved in a rhizosphere irrigation mode, a sodium alginate-nano silicon dioxide composite stabilizer system synergistically plays the dual functions of dispersion stability and slow release protection, and it is ensured that the moringa oleifera peptide keeps activity in the soil environment. The preparation has the advantages of being small in dosage, low in cost, easy and convenient to operate, environmentally friendly and the like, a scientific and feasible technical scheme is provided for safe utilization of cadmium-polluted farmlands in northern alkaline soil areas, and the preparation has important application value and popularization prospects.

The application provides an oral instant tablet containing Morinda citrifolia oil, which comprises the following components in parts by mass: Morinda citrifolia oil microemulsion 10 parts, carrier 30-40 parts, coating material 2-4 parts, and disintegrating agent 2-5 parts. The coating material is selected from Aeroperl and / or Sylysia; the carrier is selected from one or more of microcrystalline cellulose MCC PH101, microcrystalline cellulose MCC PH102, starch and lactose; and the disintegrating agent is selected from carboxymethyl starch sodium and / or low-substituted hydroxypropyl cellulose. The microemulsification technology is used to wrap the essential oil to reduce the volatilization of the essential oil; the microemulsion is made into a tablet to cover the acidity, increase the compliance of the public, and realize the form change of the Morinda citrifolia oil microemulsion from liquid to solid. The application studies and prepares the oral instant tablet containing Morinda citrifolia oil, which not only solves the inherent defects of traditional dosage forms, but also provides a more convenient taking mode compared with common tablets.

The invention relates to a degerming and anti-mite finishing agent for down feather and a preparation method of the degerming and anti-mite finishing agent, and belongs to the technical field of down feather processing.The degerming and anti-mite finishing agent is prepared from, by weight, 8-12 parts of plant antibacterial liquid, 2-4 parts of dimethyl diallyl ammonium chloride, 1-3 parts of polyethylene glycol and 40-50 parts of water, the plant antibacterial liquid is a mixed liquid of silver birch juice and a moringa seed extract, and the moringa seed extract is obtained by mixing moringa seeds and sugarcane according to the mass ratio of 1: (4-6) and fermenting. According to the sterilizing and anti-mite finishing agent for the down feather and the preparation method of the sterilizing and anti-mite finishing agent, the silver birch juice and the moringa seed extract are contained in the finishing agent, and after the finishing agent acts on the down feather, the antibacterial property, the filling power and the moisture resistance of the down feather can be effectively improved, so that the down feather can maintain a long-acting antibacterial effect.

The present invention relates to a method for obtaining a specific protein hydrolysate from Moringa oleifera seed cake. The present invention also relates to a protein hydrolysate from Moringa oleifera seed cake and its use as a medicament. Finally, the present invention relates to a pharmaceutical or dermatological composition comprising an effective amount of a protein hydrolysate from Moringa oleifera seed cake as an active agent, for its use as a medicament for treating fibrotic diseases and inflammatory conditions, treating cancer, treating bacterial or viral infectious diseases, and treating genetic drift and pathologies associated with skin pigmentation.

A system for the manufacture of pharmaceutical formulations for the treatment of diabetes and diabetic neuropathy, comprising: a) an extraction unit for producing an ethanolic extract from shade-dried leaves of Moringa oleifera Lam. and Bacopa monnieri Linn., and defatting the dried, crushed leaves with petroleum ether to remove lipids and chlorophyll; b) a fractionation unit configured to fractionate the ethanolic extract with ethyl acetate to obtain the ethyl acetate fraction; c) a phytosome preparation unit for the production of phytosomes using antisolvens precipitation technology, wherein the phytosome preparation unit comprises the following: • an ultrasonic device for sonicating a mixture of ethyl acetate fraction and phosphatidylcholine, • a heating device configured to heat the sonicated mixture below 40 °C, and • a condensation device configured to condense solvents into a complex film; and d) a formulation unit configured to incorporate the phytosomes into pharmaceutical dosage forms.

The utility model discloses a morinda citrifolia enzyme stock solution centrifugal device relates to centrifugal device technical field, including the bottom plate, the upper end of bottom plate is fixedly equipped with the protective shell, the inside of protective shell is fixedly equipped with the storage ring plate, the outer wall of protective shell is equipped with the suction pipe in the penetrating way, the upper end of bottom plate is fixedly equipped with the pump body, a special-shaped pipe is fixedly installed at the liquid inlet end of the pump body, and a centrifugal mechanism is arranged in the protective shell. And the centrifugal mechanism comprises a power system, a centrifugal barrel is arranged at the upper end of the storage circular ring plate, and a stable circular ring seat is fixedly mounted at the top end of the interior of the protective shell. The morinda citrifolia enzyme stock solution continuous centrifugation device can conduct continuous centrifugation on the morinda citrifolia enzyme stock solution, so that it is not needed to shut down to take out samples after each time of centrifugation is completed, the morinda citrifolia enzyme stock solution can be continuously centrifuged, continuous and automatic production can be achieved, and the production efficiency is prevented from being limited.

The invention provides a traditional Chinese medicine composition and a preparation method and application thereof, and belongs to the technical field of traditional Chinese medicine compositions. The traditional Chinese medicine composition comprises the following raw materials in parts by weight: 2-4 parts of spina date seeds, 1-3 parts of cordyceps sobolifera sporocarp, 2-4 parts of poria cocos, 2-4 parts of eucommia male flowers and 1-3 parts of moringa oleifera leaves. The semen ziziphi spinosae for nourishing heart, tonifying liver, calming heart and tranquilizing mind is used as a monarch drug; the cordyceps sobolifera sporocarp for dispelling wind and heat, arresting convulsion and relieving spasm and the poria cocos for clearing damp, promoting diuresis, tonifying spleen and calming heart are used as ministerial drugs; eucommia staminate flowers capable of tonifying liver and kidney, calming heart and promoting sleep and moringa oleifera leaves capable of arresting convulsion and soothing nerves are used as adjuvant and conductant drugs, the whole prescription is simple and special in medicine effect and exact in curative effect, and has the effects of soothing nerves and promoting intelligence, calming and tranquilizing and improving sleep.

The invention provides debittered and high-nutrition moringa seed bread and a preparation method thereof, and relates to the technical field of food. The method comprises the following steps: firstly, performing germination treatment on moringa seeds to activate an enzyme system in the moringa seeds and improve the nutritional value and bioavailability; beta-cyclodextrine is used for debitterizing the germinated moringa seeds, and the beta-cyclodextrine can form an inclusion compound with substances such as bitter taste in the moringa seeds, so that the bitter taste is effectively shielded, and the mouth feel is improved. Moringa oleifera seeds are used as a raw material to be added in the bread making process, conventional components such as flour, yeast, water and seasonings are combined, and through the steps of fermentation, shaping, baking and the like, a bread product which not only retains the original flavor of bread, but also has the high nutrition and debitterizing effects of the moringa oleifera seeds is obtained. The moringa seed bread not only enriches the taste and nutritional value of the bread, but also provides a delicious and healthy food choice for consumers, conforms to the development trend of healthy food, provides a new way for development and utilization of moringa seed resources, and has important market promotion value.

The invention discloses a moringa oleifera branch polyphenol extract as well as an extraction method and application thereof, and belongs to the technical field of plant extraction. The preparation method comprises the following steps: firstly, mixing proline and lactic acid to obtain an extraction solvent, then uniformly mixing the extraction solvent with moringa oleifera branches, carrying out ultrasonic extraction, and carrying out solid-liquid separation to obtain a liquid which is the polyphenol extract. The method for extracting the moringa oleifera branch polyphenol by using the compound solvent formed by the proline and the lactic acid is green and environment-friendly, the extracted product is rich in polyphenol, meanwhile, the proline and the lactic acid are contained as feed additives, protein synthesis can be promoted, the growth performance can be improved, sustainable and green breeding production is achieved, and the moringa oleifera branch polyphenol is suitable for large-scale production. And animal health and breeding benefits are improved.

This utility model relates to a composition of a powdered shortbread confection (polvoron) with malunggay (Moringa oleifera) leaf powder. Conventional powdered shortbread confection formulations are primarily composed of toasted flour, powdered milk, sugar, and butter. The present utility model provides a composition incorporating powdered malunggay (Moringa oleifera) leaf together with all-purpose flour, powdered milk, white sugar, butter, margarine, and vanilla flavoring to produce a nutritionally enriched powdered shortbread confection. The composition is prepared by drying and pulverizing malunggay leaves, toasting the flour, thoroughly mixing the ingredients, molding the mixture into compact pieces, chilling until firm, and individually wrapping the finished product. The utility model provides an alternative powdered shortbread confection utilizing the nutritional properties of malunggay in a convenient food product suitable for human consumption.

The invention relates to the technical field of natural product extraction, and particularly discloses a method for microwave-assisted extraction of glucosinolate monomers in moringa oleifera. The moringa seed glucosinolate monomer 4-(alpha-L-rhamnosyl) benzyl glucosinolate is obtained by taking moringa seeds as a raw material and adopting a microwave-assisted method for extraction, an extraction method for separation and a macroporous adsorption resin adsorption-desorption method for purification. According to the method, the moringa seed glucosinolate monomer can be obtained without using a high performance liquid chromatograph, a liquid chromatograph-mass spectrometer and other expensive instruments, the extraction efficiency is high, the energy consumption is low, the elution solvent is green and environment-friendly, and the operation is simple and convenient.

The invention belongs to the technical field of development of plant-derived bioactive peptides, and discloses a preparation method and application of a moringa seed antihypertensive polypeptide. Moringa seed polypeptide with the activity of inhibiting angiotensin converting enzyme (ACE) is separated and purified from moringa seed crude protein, nine moringa seed ACE inhibitory peptides with brand-new sequences and the effect of reducing blood pressure are finally obtained through structural identification, activity screening and solid-phase synthesis, sequence modification is conducted on polypeptide PLVRRAIY with the highest activity, and the trypsin enzymolysis resistance of the polypeptide PLVRRAIY is improved. Molecular level and animal experiments show that both the original peptide PLVRRAIY and the modified peptide PPVQQAIY have significant ACE inhibitory activity and antihypertensive effect, the trypsin degradation resistance of the modified peptide in the gastrointestinal tract environment is enhanced, the stability is significantly improved, and a new resource is provided for development of natural antihypertensive polypeptide drugs.

The utility model is applicable to the technical field of moringa oleifera leaf preservation, and provides a refrigeration device convenient for moringa oleifera leaf preservation, which comprises a base plate, and a refrigeration box is fixed at the top of the base plate and is used for preserving and refrigerating moringa oleifera leaves; the rotatable placing frame is arranged in the refrigerating box, and a plurality of net baskets capable of being pulled and detached are arranged on the placing frame and used for containing horseradish tree leaves; the refrigerating machine is fixedly mounted at the top of the refrigerating box; and the air outlet pipe is fixedly installed in the refrigerating box, and the air inlet end of the air outlet pipe is fixedly communicated with the cold air output end of the refrigerating machine. According to the cold storage device facilitating preservation of the moringa oleifera leaves, the containing frame can be driven by the driving mechanism to rotate, so that the moringa oleifera leaves at different positions have the opportunity to make contact with cold air, and the problem that cold air is difficult to penetrate through densely-stacked leaves in a traditional stacking and cold storage method is solved.

The invention relates to the technical field of biological medicine, and particularly discloses an acer truncatum seed oil soft capsule for relieving fatigue caused by staying up late, which comprises a capsule core and a capsule skin, the capsule core is prepared from the following raw materials in parts by weight: 10-20 parts of acer truncatum seed oil, 5-12 parts of a moringa oleifera leaf extract, 3-8 parts of a tribulus terrestris extract, 3-5 parts of a ginseng extract and 3-5 parts of a rhodiola rosea extract; the capsule skin is xanthan gum and / or gelatin; the weight ratio of the capsule core to the capsule skin is 1: (0.3-0.5); the invention also provides a preparation method of the acer truncatum seed oil soft capsule. The acer truncatum seed oil soft capsule provided by the invention has good effects of refreshing mind and relieving staying-up fatigue, and can meet the urgent demand of modern people on safe and efficient staying-up fatigue relieving products.

The invention discloses an all-round nutritional health-care food dominated by moringa oleifera, and relates to the technical field of health-care foods. Moringa oleifera, lucid ganoderma, American ginseng, sea red rice, black glutinous rice, triticale, buckwheat, black corn, millet, sorghum rice, coix seed, gordon euryale seed, black bean, black sesame, peanut, purple sweet potato, purple yam, pachyrhizua angulatus, black fungus, black mulberry fruit, poria cocos, lotus seed, endothelium corneum gigeriae galli, astragalus membranaceus, lotus root and okra. The moringa oleifera is used as a leading material, multiple natural food materials such as the lucid ganoderma and the American ginseng are combined, and the medicinal materials are added, so that the taste and flavor of the product are enriched, and the nutritional value and the health benefits of the product are improved. The expression form and the eating convenience of the product are fully considered. The powdery product is convenient to carry and eat, and is suitable for people with fast-paced life; and the solid state can be further processed into different foods according to needs, so that taste preferences and diet requirements of different consumers are met.

The utility model discloses a morinda citrifolia enzyme stock solution extraction separator, and relates to the technical field of separators, the morinda citrifolia enzyme stock solution extraction separator comprises a bottom plate and a centrifugal separator, the upper end opening of the centrifugal separator is fixedly provided with a feeding pipe, the upper end of the feeding pipe is fixedly provided with a feeding hopper, and the upper end of the centrifugal separator is provided with a discharging mechanism; and the discharging mechanism comprises a special-shaped plate and a round push plate, a supporting frame is fixedly installed at the lower end of the special-shaped plate, a servo motor is fixedly installed at the upper end of the supporting frame, a seesaw is movably installed in a protruding part of the upper end of the special-shaped plate, and a double-disc assembly is rotatably installed in the special-shaped plate. According to the morinda citrifolia enzyme extraction device, fibers or pulp which is not completely crushed in a morinda citrifolia enzyme stock solution can be prevented from being blocked in the feeding pipe, the reduction of the processing speed of the morinda citrifolia enzyme stock solution is prevented, the extraction efficiency is not influenced, and the normal operation of equipment is not influenced.

The present invention relates to the use of a protein extract of ungerminated, de-oiled seeds of Moringa oleifera as an anti-pollinator.The present invention further relates to a protein extract of ungerminated, de-oiled seeds of Moringa oleifera for use in the treatment and / or prevention and / or reduction of the manifestations of pollen allergy and / or the symptoms and / or signs associated with pollen allergy.

The invention relates to a composition containing i) a DPP-4 inhibitor selected from an extract of dandelion (Taraxacum officinale), an extract of white mulberry (Morus alba), an extract of bitter melon (Momordica charantia), a hydrolysate of yeast (Saccharomyces cerevisiae), an extract of garlic (Allium sativum), an extract of grape (Vitis vinifera), an extract of turmeric (Curcuma longa), an extract of horseradish tree (Moringa oleifera) and an extract of fenugreek (Trigonella foenum-graecum); and ii) a GLP-1 analogue selected from a hydrolysate of yeast (Saccharomyces cerevisiae), a white mulberry (Morus alba) extract, a yerba mate (Ilex paraguariensis) extract, an Arabica coffee (Coffea arabica) extract, a purslane (Portulaca oleracea) extract, a bitter melon (Momordica charantia) extract, a lager flower (Lagerstroemia speciosa) extract, an apple (Malus domestica) extract, a cinnamon (Cinnamomum verum) extract and a fenugreek (Trigonella foenum-graecum) extract; and iii) a GLP-1 secretion enhancer selected from inulin, gum arabic, an extract of bitter melon (Momordica charantia), an extract of purslane (Portulaca oleracea), an extract of common barberry (Berberis vulgaris), an extract of Arabica coffee (Coffea arabica), an extract of Siberian angelica (Angelica dahurica), an extract of turmeric (Curcuma longa) and an extract of fenugreek (Trigonella foenum-graecum), where at least one ingredient is selected from each group i)-iii) and a total of at least three different ingredients are selected.

The utility model belongs to the technical field of beverage bottle, especially relates to a beverage bottle for moringa oleifera beverage, including bottle body and bottle lid, the bottle lid is connected in the bottle body top, the bottle body inside and bottom are provided with supplementary adjusting mechanism, supplementary adjusting mechanism sets up in the bottle body inside. The beverage bottle for moringa oleifera beverage, through set up supplementary adjusting mechanism, through the rotation knob drive connecting rod and adjusting ball rotation, thereby adjust the size of the coincident area of flow channel and through -hole, and further adjust the outflow of beverage, thereby adapt to different age groups use, avoid the old or child due to beverage outlet flow rate, lead to choke to.

The invention provides a method for extracting fresh moringa oleifera leaf protein by adding lactobacillus plantarum for fermentation, which comprises the following steps: cutting fresh moringa oleifera leaves into sections as raw materials to extract and process leaf protein, and sequentially carrying out the procedures of pretreatment, pulping, leaf pulp separation, fermentation, centrifugal separation, freeze drying and the like to realize complete extraction of the moringa oleifera leaf protein. The processing process is safe, simple and convenient, byproducts can be recycled for the second time, no waste is generated, and the method is environment-friendly and pollution-free; the leaf protein concentrate extraction rate can reach 59.25%, the protein content can reach 54.42%, and the leaf protein feed is a high-quality protein feed.

The invention relates to the related technical field of moringa oleifera leaves, and discloses a method for reducing the uric acid level of a hyperuricemia mouse by a moringa oleifera leaf extract and determining the mechanism of the moringa oleifera leaf extract, and the method comprises the following steps: S1, preparing the moringa oleifera leaf extract: obtaining moringa oleifera leaf alcohol extracts with different concentrations; s2, establishing an animal model: randomly grouping mice; s3, performing a drug intervention experiment: performing intragastric administration on the moringa oleifera leaf extract in different doses to a hyperuricemia mouse, and continuously performing administration for 7 days; s4, biochemical index detection: sampling the mice, and detecting related index data of each group of mice; s5, data analysis: verifying the effect of the moringa oleifera leaf extract. According to the method, toxic and side effects are remarkably reduced, and research proves that the moringa oleifera leaf extract has good safety characteristics. The natural component structure reduces the risk of causing anaphylactic reaction, and the influence on liver and kidney functions is obviously smaller than that of chemically synthesized drugs. And no serious adverse reaction is caused after long-term use, so that a safer treatment choice is provided for gout patients.

The invention belongs to the technical field of medicines, and particularly relates to a group of butyrylcholine esterase (BChE) inhibitors with high selectivity and a screening method thereof, in particular to two BChE specific inhibitors, namely methyl 4-hydroxybenzyl carbamate and moringa seed extract, which are screened from a moringa seed extract. The invention also relates to application of the BChE specific inhibitor in preparation of drugs for preventing or treating Alzheimer's disease. The invention provides a brand new strategy for efficiently screening the anti-Alzheimer disease medicine.

The invention provides a method for extracting selenium-containing moringa oleifera tannin from selenium-rich moringa oleifera leaves, and relates to the technical field of natural product extraction, the method comprises the following steps: (1) pretreatment of moringa oleifera leaves, (2) soaking in an alcoholic solution, (3) extraction, and (4) adsorption and elution. According to the method, the selenium-containing moringa oleifera tannin is extracted from the selenium-rich moringa oleifera leaves, the method has the advantages of being simple in process, easy to operate, high in extraction purity and the like, and the selenium-containing moringa oleifera tannin substance in which selenium and moringa oleifera tannin coexist can be extracted through the method.

The invention discloses a preparation method of a moringa seed oil liposome composition, which comprises the following steps: weighing cholesterol, lecithin, moringa seed oil and TW-80, adding absolute ethyl alcohol, carrying out ultrasonic dissolution, carrying out rotary evaporation to remove an organic solvent to form a lipid film, then adding water for activation, carrying out ultrasonic treatment until the formed solution is uniform in texture, and drying to obtain the moringa seed oil liposome composition. The liposome compound containing the moringa seed oil is obtained. The invention further discloses application of the moringa seed oil liposome composition in cosmetics. According to the invention, a lipidosome wrapping process is combined, the moringa seed oil raw material is optimized and innovated, the problems of insufficient deep processing technology and the like in extraction and application of active substances of the moringa seed oil raw material are solved, and the moringa seed oil lipidosome with tightening and anti-wrinkle effects is obtained. The application of vegetable oil components in the formulas of toning lotion, water essence and the like is improved, the sticky and greasy skin feeling of the vegetable oil is improved, the effects of the raw materials are reflected to the maximum extent, and the development of the moringa oleifera industry is driven while the market requirements are met.

The invention provides a moringa oleifera leaf flavone-chitosan composite fruit and vegetable fresh-keeping agent and a preparation method thereof, relates to the technical field of agricultural product storage and fresh-keeping, and aims to solve the problem that a composite fresh-keeping agent taking natural active ingredients as main raw materials is lacked in the prior art. The method comprises the following steps: step 1, extracting, filtering, centrifuging and freeze-drying flavone in moringa oleifera leaves through ultrasonic assistance to obtain a moringa oleifera leaf flavone crude extract; step 2, preparing the moringa oleifera leaf flavone crude extract into a solution, and then separating and purifying moringa oleifera leaf flavone to obtain moringa oleifera leaf flavone; and step 3, adding the moringa oleifera leaf flavone into the chitosan solution, fully stirring, and performing ultrasonic treatment to obtain the moringa oleifera leaf flavone-chitosan composite preservative. The moringa oleifera leaf flavone-chitosan composite fresh-keeping agent disclosed by the invention is used for fresh-keeping of fruits and vegetables.

The invention provides preparation of an H2O2 response type compound enzyme preparation and application of the H2O2 response type compound enzyme preparation in pre-preparing minced fillet products. The compound enzyme preparation is prepared from maltodextrin, glucose, a rosemary extract, sulfonated moringa seed shell polyphenol, glucose oxidase and moringa peroxidase through low-temperature mixing and spray drying. The preparation is added into minced fillet, and the minced fillet is subjected to ultrahigh pressure treatment for primary physical sterilization; h2O2 generated by high-pressure stress microorganisms activates glucose oxidase and catalyzes glucose to generate a large amount of H2O2 to realize signal amplification, so that moringa oleifera peroxidase is activated to catalyze polymerization of sulfonated moringa oleifera seed shell polyphenols, and a potent bactericide is generated in situ for secondary chemical sterilization; and the residual trace H2O2 can trigger the cascade reaction again to provide third long-acting protection, so that the texture, flavor and nutrition of the surimi are effectively maintained, and the shelf life is remarkably prolonged.