24 results about "Melanoidin" patented technology

The invention discloses a sludge anaerobic acidogenesis strengthening method based on pyrohydrolysis and potassium permanganate synergistic degradation of melanoids. The method comprises the following steps: (1) screening sludge to remove impurities, and then carrying out gravity settling concentration; (2) pyrohydrolysis treatment: high-temperature and high-pressure treatment, pressure relief and cooling; (3) adding potassium permanganate for oxidation, and performing ultrasonic dispersion; (4) anaerobic fermentation: inoculating activated sludge, and controlling fermentation conditions; and (5) separating and extracting the short-chain fatty acid. Through the synergistic effect of pyrohydrolysis and potassium permanganate, melanoids generated in the pyrohydrolysis process are degraded in a targeted mode, the inhibition effect of melanoids on anaerobic microorganisms is eliminated, and meanwhile efficient dissolution of organic matter in sludge is promoted. Nano-manganese dioxide generated by oxidizing potassium permanganate serves as an electron transfer medium, the metabolic activity of acid-producing bacteria is further enhanced, and the acid pickling recovery rate is larger than or equal to 90%. According to the method, the yield of short-chain fatty acid is increased by 65% (as high as 456mg / g VS), high efficiency and environmental friendliness are achieved, and an innovative solution is provided for sludge resourceful treatment.

The invention discloses a method for promoting sludge catalytic cracking and reforming to efficiently produce hydrogen by using sludge pyrohydrolysis byproduct melanin, and belongs to the field of organic solid waste energy recovery. Aiming at the problems that melanin in a high-temperature pyrohydrolysis-pyrolysis process inhibits sludge decomposition, pyrolysis gas components are complex and H2 directional regeneration is difficult, the byproduct melanin in the high-temperature pyrohydrolysis process is extracted and is used for enhancing the pyrolysis gas production efficiency of the pyrohydrolysis sludge. The sludge is subjected to low-temperature pyrohydrolysis treatment, the surface is loose, and the organic matter devolatilization degree is enhanced, so that solid-phase pyrolysis gas production of the pyrohydrolysis sludge is promoted. Furthermore, the melanin-like compound shows excellent reaction catalytic activity due to carboxyl and a nitrogen-containing structure, the optimal effect is achieved when the concentration is 2.5 mg / g DW, the total gas production rate is increased by 6.54%, the melanin-like compound induces pyrohydrolysis sludge cracking mixed gas to generate methane catalytic cracking CH4-> C + 2H2 and catalytic reforming CH4 + CO2-> 2CO + 2H2 reactions, and the hydrogen yield is increased by 35.92% at most. The method effectively solves the engineering bottleneck problems of melanin-like negative effects in the thermal hydrolysis-pyrolysis field and low green energy recovery rate.

To provide a composition that exhibits excellent bacteriostatic performance.SOLUTION: A bacteriostatic composition comprises (A) melanoidin produced from at least one selected from xylose and ribose and at least one selected from phenylalanine and proline as a reaction substrate, and (B) a chelating agent. It is preferable that the chelating agent (B) is at least one selected from citric acid or a salt thereof and condensed phosphoric acid or a salt thereof. It is also preferable that the composition further contains at least one selected from organic acids or salts thereof other than the chelating agent. It is also preferable that the organic acid or a salt thereof is acetate.SELECTED DRAWING: None

The invention relates to the technical field of traditional Chinese medicines, in particular to anti-osteoporosis processed isinglass as well as preparation and application thereof. According to the prepared isinglass provided by the invention, the component M is less than or equal to 5kDa, and the proportion is 63.71%, so that the intestinal absorption efficiency and the bioavailability can be remarkably improved. The invention also provides an application of the processed isinglass in preparation of medicines. The medicines can be used for treating and / or preventing osteoporosis caused by estrogen deficiency, intestinal flora imbalance caused by estrogen deficiency or bone diseases caused by estrogen deficiency. Compared with traditional donkey-hide gelatin, the prepared isinglass is better in molecular weight distribution and richer in Maillard reaction products; compared with swim bladder collagen which is not processed by the preparation method disclosed by the invention, the processed swim bladder collagen disclosed by the invention generates active ingredients such as melanoidins through a Maillard reaction, and the active ingredients are cooperated with amino acids, so that the limitation of traditional glues in anti-osteoporosis application is broken through, and a scientific basis is provided for development of functional bone health products.

This invention discloses a method for preparing Rehmannia glutinosa pulp with high retention of all its components after nine steaming and nine sun-drying processes, belonging to the technical field of deep processing of traditional Chinese medicine and preparation of functional foods. Using Rehmannia glutinosa processed through nine steaming and nine sun-drying processes from authentic Huai Rehmannia glutinosa as raw material, this method addresses industry pain points such as the inability to dry-crush candied Rehmannia glutinosa, low efficiency of traditional extraction methods, easy loss of heat-sensitive active ingredients, and difficulty in retaining all components. It adopts wet pulping instead of dry crushing and pioneers a three-stage progressive cell-wall breaking process of "enzymatic hydrolysis → ultrasound → microwave," achieving a synergistic effect of gentle biological cell-wall breaking, physically enhanced crushing, and low-temperature solubilization. Combined with vacuum low-temperature extraction, post-fermentation with probiotics, and low-temperature concentration, the entire process avoids membrane separation, protein removal, and purification of individual components. The finished product achieves a polysaccharide extraction rate of 90%–96%, a total retention rate of ≥65% for catalpol and rehmannia glycoside D, an increase of over 30% in melanoidin content, a decrease of over 25% in 5-HMF content, and an increase of over 13% in in vitro antioxidant activity. The process is gentle and controllable, suitable for large-scale industrial production.

The invention belongs to the technical field of extraction and purification of natural active substances, and discloses an anti-inflammatory active melanoidin based on black American ginseng as well as a preparation method and application of the anti-inflammatory active melanoidin, and the black American ginseng melanoidin with anti-inflammatory activity is obtained by performing separation and purification by utilizing the metal chelating property of the melanoidin. The content of the anti-inflammatory active melanoidins is 63.29-73.52 g / 100g, the molecular weight distribution range is 4.6 * 10 < 2 >-2.49 * 10 < 4 > Da, the average molecular weight is 17.46 kDa, and the anti-inflammatory active melanoidins are of uniform rod-shaped and sheet-shaped structures. A skeleton in the black American ginseng melanoidin with anti-inflammatory activity is rich in C = O, C-N and N-H groups, characteristic absorption peaks of amide, carboxyl and the like appear at 1600cm <-1 > of a separated product, the influence of the separated product on LPS-induced Caco-2 colon cancer cells is researched through an in-vitro cell experiment, and a research result shows that the melanoidin isolate has a relatively remarkable anti-inflammatory effect.

The application discloses a method for identifying high-temperature Daqu based on near-infrared spectroscopy technology in the field of food detection technology, which comprises the following steps: 1) collecting Maotai-flavor high-temperature Daqu samples and collecting near-infrared spectrum data of the samples; 2) accurately quantifying the melanoidin content of the samples; 3) establishing a melanoidin identification model of near-infrared spectroscopy technology combined with a partial least squares method; 4) collecting near-infrared spectrum data of unknown samples, inputting the data into the model of step (3), obtaining melanoidin content data of the samples, and determining the Daqu type of the unknown samples according to the numerical range of the content data falling into which black, white or yellow Daqu. The application establishes a correlation model of near-infrared spectrum information and melanoidin information by the partial least squares method, and then predicts the melanoidin content of unknown samples by the near-infrared spectrum data, and further identifies the Daqu type (black Daqu, yellow Daqu and white Daqu).

The present invention relates to a method for fermenting coffee beans using Bacillus subtilis isolated during the fermentation process of Gochujang. Conventional fermented coffee has primarily utilized fermentation methods employing lactic acid bacteria or yeast, but these methods have faced issues such as difficulty in achieving uniform fermentation and inability to maintain taste consistency. The present invention provides a novel method for manufacturing fermented coffee that enhances umami flavor, increases digestibility and absorption rates, and strengthens antioxidant effects by applying Bacillus subtilis isolated from Gochujang to the fermentation of coffee beans. This method proceeds by: 1) inoculating the surface of coffee beans with a Bacillus subtilis strain and fermenting them for 72 hours at 37°C and 80% humidity; 2) washing and drying the fermented beans, followed by low-temperature roasting at 200°C; and 3) undergoing an aging process to form an optimal flavor. Through this process, the acidity and bitterness of the coffee are controlled, and umami is increased to provide a smoother and deeper flavor. Furthermore, the antioxidant components (polyphenols, melanoidins, etc.) generated during the fermentation process are increased, thereby enhancing health benefits. In addition, caffeine content can be controlled, and the effects of beneficial bacteria that support gut health can also be expected. This invention can be applied to various forms, such as premium fermented coffee, instant coffee, and cold brew, and can create a differentiated functional coffee market through the convergence of the fermented food and coffee industries.

The invention belongs to the technical field of functional food, and particularly relates to a compound oral liquid beneficial to maintaining the healthy level of blood pressure and a preparation method thereof.The compound oral liquid is prepared from, by weight, 4-12 parts of Shanxi mature vinegar, 3-12 parts of folium cortex eucommiae and 3-12 parts of folium apocyni veneti. The traditional Chinese medicine composition contains various antihypertensive active substances such as melanoidins and ligustrazine, two traditional Chinese medicinal materials such as folium cortex eucommiae and folium apocyni veneti which have an antihypertensive effect are matched, the traditional Chinese medicinal materials are rich in antihypertensive components such as flavonoid and phenolic acid, the optimal proportion is obtained through multiple tests, and the efficacy of cooperatively promoting and maintaining the blood pressure health level is achieved. A series of complications caused by hypertension are relieved, the healthy level of blood pressure can be maintained and tends to be stable, and the three components have a remarkable synergistic interaction effect according to the prescription range and the preparation method disclosed by the patent.

The invention relates to the technical field of seafood soy sauce, in particular to seafood soy sauce and a preparation method thereof, and the seafood soy sauce comprises the following raw materials: defatted soybeans, wheat, edible salt, compound strains, dried scallop and kelp concentrated soup, a seafood flavor base material, lutein microcapsules and a yeast extract. After the shrimp heads are subjected to enzyme hydrolysis, small molecule peptides and amino acids can be generated; under a weak alkaline condition, the products are subjected to a Maillard reaction with xylose or glycine to generate high-boiling-point flavor substances such as pyrazines and furanones, so that the heat resistance of the products is remarkably improved; in addition, melanoidins and reducing ketone in the Maillard reaction product have the effect of scavenging free radicals, lipid oxidation can be effectively inhibited, and therefore the retention rate of flavor substances of the soy sauce is increased. A compact hydrophobic barrier is formed through a zein-pectin composite wall material, the oxygen barrier rate is effectively improved, and the xanthophyll keeps relatively high activity in an acid environment in combination with an optimized spray drying process, so that the activity loss in a storage process is reduced.

The present invention relates to a composition comprising a laccase and optionally a serine protease, and to the use of said composition in the treatment of melanin and / or phenolic organic compounds, for example as a laundry composition, a cleaning composition, a whitening cosmetic composition.

The invention belongs to the technical field of biology and medicine, and discloses a black ginseng-based metabolic syndrome intervening melanoidin and a preparation method and application thereof.The black ginseng is used for preparing the metabolic syndrome intervening melanoidin, black ginseng powder subjected to heat-moisture treatment is subjected to alcohol extraction, and a black ginseng extract is obtained; and purifying the crude extract through macroporous resin and a sephadex column to obtain the melanoidin isolate. The melanoidins basically comprise melanoidins, water, ash, protein, fat, total sugar and reducing sugar, the average molecular weight is changed from 11.2 * 10 < 3 > Da to 9.33 * 10 < 3 > Da, and the molecular weight distribution range is 4.1 * 10 < 3 > Da to 2.28 * 10 < 5 > Da. The melanin can be used as a functional ingredient to be added into meal replacement powder and solid beverages and is used for body weight management and blood sugar regulation; the composition can also be used as an auxiliary treatment preparation for patients with diabetes and obesity; meanwhile, an anti-aging skin care product can be developed based on the anti-oxidation characteristic.

Provided is activated carbon that is suitable for purifying drinking water or its raw water and exhibits high PFAS adsorption performance. [Solution] Activated carbon that satisfies the following (1) to (3). (1) Melanoidin decolorization performance is 50% or more and 90% or less (2) Bulk ratio is 10 cc / g or more and 100 cc / g or less (3) The specific surface area based on the N2 adsorption isotherm at -196°C is 1000 m 2 / g or more 1800m 2 / g or less

The invention belongs to the technical field of livestock and poultry by-product processing, and particularly relates to a method for treating fishy smell of livestock and poultry products. According to the method, melanoidin is adopted to treat livestock products. According to the method, the fishy smell of the livestock product is directionally masked by using the natural small molecule water dissolved melanoidins and combining with the pulsed electric field, so that the fishy smell of the livestock product can be well masked, the functionality of the livestock product is enhanced, and the method has relatively high innovativeness and industrial application value.

The application discloses a method for synergistically hydrothermally treating sludge based on tea dregs and organic acid, which comprises the following steps: mixing sludge, organic acid and tea dregs, hydrothermally treating the obtained mixed slurry, and dehydrating to obtain filtrate and mud cake. The method for synergistically hydrothermally treating sludge based on tea dregs and organic acid can significantly reduce the hydrothermal reaction temperature under the synergistic action of tea dregs and organic acid, and can effectively inhibit the generation of refractory organic matters such as melanoidins while effectively improving the dewatering performance of sludge under the synergistic hydrothermal treatment of organic acid and tea dregs, so as to facilitate the reduction and resource utilization of sludge. Therefore, by fully utilizing the characteristics of organic acid and tea dregs and synergistically hydrothermal treatment technology, efficient, environment-friendly, resourceful and low-cost treatment of sludge can be realized, and the method has the advantages of low reaction temperature, high treatment efficiency, low energy consumption, good dewatering effect, green environmental protection and the like, and has a wide application prospect and popularization value.

A method for efficient hydrogen production from sludge by means of catalytic cracking and reforming promoted by sludge thermal hydrolysis by-product melanoidins, relating to the field of energy recovery from organic solid waste. In view of the problems in high-temperature thermal hydrolysis-pyrolysis processes that melanoidins inhibit sludge decomposition, the composition of pyrolysis gas is complex, and the directional regeneration of H2 is difficult, in the present invention, by-product melanoidins in a high-temperature thermal hydrolysis procedure are extracted to enhance the efficiency of gas production from cracking of thermally hydrolyzed sludge. The sludge is subjected to low-temperature thermal hydrolysis treatment, so that the surface is loose and the degree of organic matter devolatilization is enhanced, thereby promoting gas production from solid-phase cracking of thermally hydrolyzed sludge. Furthermore, melanoidins demonstrate superior reaction catalytic activity due to carboxyl groups and nitrogen-containing structures and achieve the best effect at 2.5 mg / g DW. The total gas production is increased by 6.54%. The melanoidins induce, in mixed gas from the cracking of thermally hydrolyzed sludge, a methane catalytic cracking reaction CH 4®C+2H 2 and a catalytic reforming reaction CH 4+CO 2®2CO+2H 2. The hydrogen yield is increased by at most 35.92%. The present invention effectively solves the engineering bottleneck problems of negative impact of melanoidins and low green energy recovery in the field of thermal hydrolysis-pyrolysis.

This invention discloses a method for preparing a seedling substrate for co-fermentation of baijiu lees and pomelo peel straw waste, which includes the following steps: (1) targeted exfoliation of pomelo peel essential oil and enrichment of nanocellulose; (2) micropore activation of baijiu lees; (3) stepwise depolymerization of straw; (4) multiphase micro-oxygen gradient co-fermentation; (5) in-situ bridging of melanoidins and triple network gelation; (6) biomimetic loading and granulation. This invention uses subcritical water targeted exfoliation and enzymatic microfluidic flow to not only precisely remove the antibacterial pomelo peel essential oil, but also convert it into highly active nanocellulose. Nanocellulose acts as a micro-reinforcing steel in subsequent steps, greatly enhancing the three-dimensional network strength of the substrate and preventing substrate collapse during seedling cultivation. It also eliminates the traditional practice of adding large amounts of alkali to neutralize and destroy nutrients. By utilizing the dynamic switching of the micro-oxygen fermentation stage, oxygen consumption is used to inhibit miscellaneous bacteria in the early stage, and the micro-oxygen environment is cleverly used to activate Lactobacillus plantarum in the middle stage. Lactic acid produced by Lactobacillus plantarum is used as a substrate and finally converted into propionic acid.

This application provides an efficient method for preparing black garlic, comprising: (1) peeling and washing the garlic; (2) soaking the garlic in a seaweed extract solution; (3) pre-treating the garlic at low temperature; (4) subjecting the garlic to high temperature and high humidity; and (5) drying the garlic. The method can maintain the content of sulfur-containing compounds such as alliin during the browning process and produce melanoidins with enhanced antioxidant properties.

The invention discloses transparent coffee and a preparation method thereof. The preparation method comprises the following steps: (1) baking coffee beans: baking raw coffee beans at 220-240 DEG C for 14-18 minutes to obtain cooked coffee beans; (2) crushing coffee beans: cooling the cooked coffee beans to room temperature, and crushing the cooled coffee beans with a crusher until the particle size is 0.2-0.3 mm to obtain coffee powder; (3) extraction: mixing the coffee powder with the passion fruit juice diluent according to a mass ratio of 1: (12-20), and extracting at 60-100 DEG C for 10-50 minutes to obtain a coffee and passion fruit mixed solution; (4) filtering: removing residues in the coffee and passion fruit mixed liquid by using a filter screen of 195-205 meshes or a centrifugal machine of 495-505 rpm / min to obtain a coffee extracting solution; and (5) reduced pressure distillation: putting the extracting solution into a rotary evaporator, and distilling for 10-50 minutes at the temperature of 40-80 DEG C, the pressure of 0.05-0.15 MPa and the speed of 70-190 rpm / min to obtain the transparent coffee. Coffee powder is extracted through passion fruit juice diluent, reduced pressure distillation is conducted, the content of melanoidins in coffee extract is reduced, a large number of pigments are removed, meanwhile, a large number of caffeine and passion fruit flavor substances can be reserved, and transparent coffee with the passion fruit flavor and the coffee flavor is obtained.

The application discloses a kind of 10-30 kDa melanoidins in soy sauce directional color protection method, belong to food processing technical field.The defects that present soy sauce color protection technology targeting is poor, safety is low, product flavor is easily damaged, and insufficient adaptability, the application is added 0-0.1% mountain warehouse son oil or / and 0-0.5% chitosan in the post-processing stage of soy sauce brewing, chitosan molecular weight is 1-20 kDa, wherein 10-12 kDa color protection effect is optimal;While preferred process sequence is: after adding mountain warehouse son oil stirring evenly, then add chitosan.The application is by specific component raw material synergy and exclusive feeding process timing, and 10-30 kDa melanoidins in soy sauce is protected directionally.The method process is simple, safety is high, and it is suitable for low-salt solid, solid and dilute fermentation, high-salt dilute and other multi-class soy sauce, can effectively stabilize soy sauce color, significantly improve soy sauce finished product sensory quality and shelf stability, with good industrial application prospect.

The application discloses a sludge anaerobic acid production strengthening method based on synergistic degradation of melanoid-like substances by thermal hydrolysis and potassium permanganate, which comprises the following steps: (1) screening and removing impurities from sludge, and then performing gravity sedimentation and concentration; (2) thermal hydrolysis treatment: high-temperature and high-pressure treatment, pressure relief and cooling; (3) adding potassium permanganate for oxidation, and combining with ultrasonic dispersion; (4) anaerobic fermentation: inoculating active sludge, and controlling fermentation conditions; and (5) separating and extracting short-chain fatty acids. The application realizes the synergistic effect of thermal hydrolysis and potassium permanganate, targets the degradation of melanoid-like substances generated in the thermal hydrolysis process, eliminates the inhibition of the melanoid-like substances on anaerobic microorganisms, and promotes the efficient dissolution of organic matters in sludge. The nano manganese dioxide generated by potassium permanganate oxidation serves as an electron transfer medium, further strengthens the metabolic activity of acid-producing bacteria, and the pickling recovery rate is greater than or equal to 90%. The method makes the yield of short-chain fatty acids increase by 65% (up to 456 mg / g VS), has high efficiency and environmental protection, and provides an innovative solution for sludge resource treatment.

The present disclosure pertains to a process for the preparation of graphite-like carbon material from melanoidins comprising: a. extracting melanoidins from food products waste material, isolating the melanoidin and b. Pyrolyze the extracted and isolated melanoidin at a temperature of 500 to 1200°C, at inert atmosphere. The resulting material is used as hard carbon material and as a precursor for graphite, graphene, graphene carbon quantum dot material, carbon nanotubes, graphitic carbon nitride quantum dots, graphene oxide or combinations thereof.

The present application relates to the field of hexitol preparation, and discloses a catalyst with alcohol dehydration and cyclization functions and application thereof. The catalyst and method provided by the present application can significantly improve the selectivity of isosorbide and inhibit the generation of melanoidins in the process of preparing isosorbide from sorbitol.

A method for inhibiting melanoidin formation in a yeast propagation process, the method provides for adding a treatment composition to a molasses substance present in a yeast propagation process, wherein the treatment composition comprises a lecithin. A composition for a yeast propagation process, the composition having a lecithin, and a molasses substance.