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87results about How to "Inhibit lipid oxidation" patented technology

Method for performing tenderization treatment on yak meat by using fresh ginger and kiwifruit compounding juice, and detection method of yak meat treated by the same

The present invention relates to a method for performing a tenderization treatment on yak meat by using a fresh ginger and kiwifruit compounding juice, and a detection method of the yak meat treated by the method, and belongs to the technical field of food processing and detection. The method concretely comprises: 1) respectively and sequentially carrying out cleaning, peeling and block cutting on fresh ginger and fresh kiwifruit, respectively adding equal mass double distilled water, and sequentially carrying out homogenate and filtration, wherein the supernatants are the fresh ginger juice and the kiwifruit juice; 2) taking longest muscle on the back of a yak after slaughter 1-2 h, injecting the fresh ginger juice and kiwifruit juice compounding juice, carrying out vacuum package, and placing in an environment with a temperature of 2-8 DEG C to store for 14-21 days to obtain the tenderized yak meat product. Detection results of various physical and chemical indicators such as pH value, a thiobarbituric acid reactant, Warner-Bratzler shear force, meat color, cooking loss, and oxygen content in metmyoglobin show that: with the treatment method, tenderness of the yak meat can be effectively improved, and lipid oxidation of the yak meat can be effectively inhibited so as to significantly improve eating quality of the yak meat.
Owner:SICHUAN UNIV

Nano lipidosome containing green tea extractive, and preparation method thereof

A preparation method for a nano lipidosome containing a green tea extractive belongs to the field of chemistry. The nano lipidosome comprises the green tea extractive, soya lecithin and cholesterol; the preparation method comprises the following steps: proportionally dissolving soya lecithin and cholesterol in chloroform to obtain a mixed solution, obtaining a transparent film through reduction vaporization, adding a phosphate buffer salt solution containing the green tea extractive, rotating till the film is dissolved, removing the remaining solvent, and performing ultrasonic processing to obtain a nano lipidosome suspension containing the green tea extractive. According to the invention, encapsulation efficiency and average particle diameter are taken as the indexes, the process parameters and the optimal prescription in preparation of the nano lipidosome containing the green tea extractive are determined through single factor experiments and orthogonal experiments. Compared with a collagen membrane added in a common green tea extractive, oxidation resistance stability, mechanical property, water and light resistance, and hydrophobicity of the collagen film added in the nano lipidosome containing the green tea extractive and prepared through the method are all improved, so that relatively good effects of food protection and environmental pollution reduction can be achieved.
Owner:FUZHOU UNIV

Natural antioxidative compound pickling agent and preparation method and application thereof

The invention discloses a natural antioxidative compound pickling agent and a preparation method and application thereof. The pickling agent comprises the following components in percentage: 30-60% ofsugar beet extract, 20-40% of salty essence, 10-15% of rosemary extract, 7-10% of onion powder and 3-5% of D-sodium isoascorbate. A specific preparation process comprises the following steps: (1) preparation of the sugar beet extract; (2) preparation of the salty essence: performing anticoagulation, diluting and centrifuging to obtain a hemoglobin solution, mixing and reacting the hemoglobin solution with histidine, tyrosine and chitosan oligosaccharide, and performing freeze drying to obtain the powdered salty essence; and (3) preparation of the onion powder; and mixing the raw and auxiliarymaterials proportionally to obtain the compound pickling agent applied to processing of meat products. The pickling agent conforms to the ideas of high edible safety and no toxic and side effects, the addition amount of the pickling agent to the meat products is 0.1-0.6% to achieve the effects of oxidation resistance, color development, bacteriostasis and flavor enhancing, and the safety of the meat products can be effectively ensured.
Owner:ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES

Polypeptide natto powder and preparation method thereof

The present invention discloses polypeptide natto powder. The polypeptide natto powder comprises the following components in parts by weight: 30-40 parts of selenium-enriched natto powder, 10 parts of fruit powder, 4-6 parts of soybean polypeptide powder, 9-12 parts of chicken egg white polypeptide powder, 4-7 parts of whey polypeptide powder and 12-14 parts of konjac flour. A method manufacturing the polypeptide natto powder is as follows: selenium-enriched soybeans are soaked in water, the soaked soybeans are cooked for 22-30 minutes, after the cooking, the cooked soybeans are cooled to 40 DEG C, bacillus natto at an inoculation amount of 1%-5% is inoculated into the cooled soybeans to be subjected to a fermentation, then the fermented soybeans are placed at 0 DEG C for 12 hours to prepare nattos, the nattos are freeze-dried to remove water content, the freeze-dried nattos are primarily crushed using a crusher into 60 meshes, then the crushed nattos are then crushed using an ultra-fine crushing homogenizer, and the crushed nattos are screened using a 180 mesh vibrating screen to prepare the natto powder. The selenium-enriched natto powder, fruit powder, soybean polypeptide powder, chicken egg white polypeptide powder, whey polypeptide powder and konjac flour are mixed and the mixture is prepared into the polypeptide natto powder. The polypeptide natto powder has a good thrombolytic effect and at the same time can inhibit thrombosis recurrence to a certain extent.
Owner:北京中科卓尔生物科技有限公司

Procyanidine-polysaccharide novel natural solid combined bacteriostatic agent as well as preparation method and application thereof

The invention discloses a procyanidine-polysaccharide novel natural solid combined bacteriostatic agent as well as a preparation method and an application thereof, the combined bacteriostatic agent is prepared from procyanidine and polysaccharide according to a certain proportion, and the preparation method comprises the following steps: A, taking the procyanidine and the polysaccharide according to the proportion; B, putting the procyanidine and the polysaccharide into a mixing container, and uniformly mixing to obtain a mixture; C, adding distilled water into the mixture, uniformly mixing, and standing in a dark place to obtain a compound; and D, drying the obtained compound at low temperature under reduced pressure to obtain the novel natural solid combined bacteriostatic agent. Meanwhile, the invention further relates to the application of the natural solid combined bacteriostatic agent in food preservation and health food. The addition of the polysaccharide reverses the adverse effect of the procyanidine on promoting the growth of pathogenic bacteria at low concentration, improves the antibacterial property of the procyanidine, is simple and convenient in preparation method and stable in state, and integrates the advantages of the procyanidine and the polysaccharide, so that the combined bacteriostatic agent can replace antibiotics and preservatives to be applied to food preservation and health food.
Owner:HUBEI UNIV OF TECH

Preparation method of tea polyphenol-containing acne removing and repairing essence

The invention discloses a preparation method of tea polyphenol-containing acne removing and repairing essence, and belongs to the technical field of essence preparation. The preparation method comprises the following steps: preparing a tea polyphenol extract, preparing a water-phase solution, emulsifying, cooling and the like. Tea polyphenol is a water-soluble substance, has the effects of removing facial grease, astringing pores, removing acnes, diminishing inflammation and sterilizing and is capable of blocking ultraviolet rays and removing free radicals induced by the ultraviolet rays, so that normal functions of melanocytes are protected, formation of melanin is inhibited, meanwhile, generation of lipid oxidation is inhibited, and chromatosis is relieved; liquorice root has the effectsof clearing heat, detoxifying, resisting bacteria and diminishing inflammation, is particularly suitable for skin which has acnes and is often inflamed and has the effects of pacifying and calming, removing facial acnes and effectively preventing acnes and pimples from appearing; chamomile has the effects of disinfecting, resisting the bacteria, relieving sensitive skin and durably protecting theskin from being interfered by whelks and pimples.
Owner:WUHU YANGZHAN NEW MATERIAL TECH SERVICE CO LTD

Natto refined flour and making method thereof

The invention discloses natto refined flour. The natto refined flour comprises the following components in parts by weight: 30-40 parts of natto flour, 18-24 parts of tomato powder, 7-10 parts of fruit powder, and 12-14 parts of konjaku flour. A method for making the natto refined flour comprises the following steps of impregnating soybeans in water, then cooking the impregnated soybeans at 121 DEG C for 22-30 minutes, cooling the cooked soybeans to 40 DEG C, performing inoculating with natto bacillus according to the inoculum concentration being 1-5%, pushing the soybeans inoculated with the natto bacillus into a fermenting room, performing fermentation, and then enabling the fermented soybeans to be placed at the temperature of 0 DEG C for standing for 12 hours, so as to prepare natto; performing freeze drying on the natto, removing moisture, performing primary crushing with a crusher until 60-mesh powder is obtained, performing crushing with a superfine comminution homogenizing machine, and then performing screening with a 180-mesh vibrating screen so as to obtain the natto flour; and placing the natto flour, the tomato powder, the fruit powder and the konjaku flour in a multidimensional mixing machine, performing mixing for 20-30 minutes, controlling the temperature to be 38 DEG C, performing dehumidification at 38 DEG C, and performing drying so as to prepare the natto refined flour. The natto refined flour has favorable thrombolysis effects, and besides, the recurring of thrombosis can be restrained to a certain extent.
Owner:北京中科卓尔生物科技有限公司
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