111 results about "Xylose" patented technology

The application discloses a method for preparing bacterial cellulose by using supernatant after protein extraction from distiller's grains and application thereof. The method comprises the following steps: S1, performing protein extraction treatment on a distiller's grains hydrolysate to obtain supernatant after protein extraction from the distiller's grains, then mixing the supernatant with a Henley-Schramm culture medium, adjusting the pH value to 5.5-6.8 to obtain a compound culture medium; S2, inoculating a Komagataeibacter xylinus seed liquid into the compound culture medium, performing shallow static culture, collecting a surface bacterial cellulose membrane, and performing purification to obtain the bacterial cellulose. It is found by experiments that, under the same compound ratio, the yield of the bacterial cellulose prepared by using the supernatant after protein extraction from the distiller's grains is higher than that of the bacterial cellulose prepared by directly using the distiller's grains hydrolysate without protein extraction, and the crystallinity of the obtained bacterial cellulose product is also higher. The preparation process is simple, and can provide an effective way for low-cost industrial production of the bacterial cellulose and efficient utilization of distiller's grains waste.

The application discloses a preparation method of bio-modified wheat bran containing xylo-oligosaccharide, and comprises the following steps: fermenting wheat bran by using mixed strains and composite enzymes; wherein the mixed strains comprise lactic acid bacteria, Saccharomyces cerevisiae and Bacillus licheniformis; and the composite enzymes comprise cellulase and xylanase. The preparation method provided by the application effectively reduces the contents of crude fiber and neutral detergent fiber in the wheat bran, increases the contents of crude protein and xylo-oligosaccharide in the fermented wheat bran, which are beneficial to the growth and development of animals, and improves the nutritional value of the wheat bran, so that the proportion of the wheat bran in feed application can be increased, and the addition amount of corn and soybean meal can be reduced.

A cultivation method for improving the quality and yield of black fungus using hydrogen-rich water involves spraying a hydrogen-rich water composition three times during mycelial culture, spraying it every two days during primordium differentiation, and spraying it daily during fruiting body enlargement. The hydrogen-rich water composition comprises hydrogen-rich water, xylose, humic acid, gelatin, hydroxypropyl cellulose, and deionized water. This invention effectively solves the problems of poor hydrogen concentration stability and hydrogen volatilization in hydrogen-rich water by adding functional components such as gelatin, hydroxypropyl cellulose, xylose, and humic acid to the hydrogen-rich water, thus extending the time of hydrogen concentration stability and its effect. By using the above-mentioned hydrogen-rich water composition during the mycelial growth and primordium differentiation stages of black fungus, the microenvironment for black fungus growth is comprehensively optimized, resulting in increased yield, improved quality, and enhanced marketability. This provides an effective way to cultivate superior black fungus varieties.

The present disclosure provides genetically engineered microorganisms for the simultaneous fermentation of pentose and hexose sugars, for example, glucose and xylose. The microorganisms can be modified to express AtSWEET polypeptides, LST1 polypeptides, mutants thereof, homologs thereof or combinations thereof. Also provided are methods of co-fermenting hexose and pentose sugars, methods of increasing the conversion of lignocellulosic biomass via microbial fermentation, and methods of generating biofuel.

This invention discloses a method for extracting xylose syrup from corn cobs, relating to the field of xylose production. The invention includes equipment for extracting xylose syrup from corn cobs, comprising: a sieving machine for removing dust and fine debris from the corn cobs; and a drum-type washing machine for cleaning the dust and debris from the corn cobs. This invention, through a specially designed soaking device and a timed control system, precisely controls the absorption amount, allowing for more complete hydrolysis of hemicellulose in the corn cob particles into xylose. This reduces incomplete reactions or side reactions caused by insufficient or excessive absorption. The process eliminates the need for frequent manual intervention and can automatically perform detection at preset time intervals, significantly saving labor and time costs. Because the weight of dilute sulfuric acid absorbed by the corn cob particles can be precisely controlled, the reaction conditions for each batch are more consistent, thus ensuring the stability and consistency of the xylose syrup product quality.

A novel steviol glycoside has been demanded. According to one aspect of the present invention, there is provided a compound represented by formula (1) (wherein (i) R1 represents Xyl(1-2)Glc1- and R2 represents Glc(1-2)Glc1-; or (ii) R1 represents Glc(1-2)Glc1- and R2 represents Glc(1-2)[Xyl(1-3)]Glc1- wherein Glc represents glucose and Xyl represents xylose), or a salt or hydrate thereof.

The application discloses a genetically engineered bacterium for efficiently producing itaconic acid by using corn stalk hydrolysate and application thereof, and belongs to the technical field of gene recombination and metabolic engineering. The genetically engineered bacterium for efficiently producing itaconic acid by using corn stalk hydrolysate is characterized by the following aspects: taking a strain BW08 as a starting strain, heterologously expressing a homocentric acid decarboxylase gene CAD, deleting an isocitric acid dehydrogenase gene Icd, heterologously expressing a xylose acid dehydrase gene XD, a 2-keto-3-deoxy-xylose acid dehydrase gene KDXD and an alpha-ketoglutaric acid semialdehyde dehydrogenase gene KGSADH, and heterologously expressing a citric acid synthase gene gltA. In the fed-batch fermentation, the yield of itaconic acid of the genetically engineered bacterium reaches 68.6 g / L, and the conversion rate reaches 0.6 g / g (total sugar). The genetically engineered bacterium can efficiently metabolize corn stalk hydrolysate to produce itaconic acid.

The invention discloses a method for preparing a lignin alkali solution and alkali cellulose by utilizing lignocellulose and application of the lignin alkali solution and the alkali cellulose. The method provided by the invention comprises the following steps: step 1, carrying out puffing treatment on a lignocellulose raw material to obtain a puffed material; 2, washing the puffed material with water, and carrying out solid-liquid separation to obtain a liquid phase containing xylose and a solid phase material containing lignin and cellulose; step 3, adding a fermentation strain capable of generating ethanol and a sugar source into the xylose-containing liquid phase for fermentation to obtain fermentation liquor, and separating ethanol from the fermentation liquor; 4, the solid-phase material containing lignin and cellulose is dried, and water obtained through optional drying is used for washing in the step 2; 5, adding alkali liquor and ethanol into the solid-phase material containing lignin and cellulose for reaction, and performing solid-liquid separation to obtain an ethanol-containing lignin alkali solution and alkali cellulose; and 6, carrying out ethanol recovery on the ethanol-containing lignin alkali solution to obtain a lignin alkali solution, and reusing the optionally recovered ethanol to the step 5. According to the method, the newly developed saccharomyces cerevisiae strain is used for converting the byproduct xylose liquid in the lignocellulose pretreatment process into the ethanol, and the ethanol is used for preparing the alkali cellulose, so that efficient cyclic utilization of resources is realized, and the production cost is reduced.

The present application relates to the field of agricultural biotechnology and plant disease control technology, and specifically discloses a composition for preventing and controlling rape root rot, a preparation method and application thereof. The composition is prepared by fermentation of the following components in parts by weight: tea seed cake 10-30 parts, oyster shell powder 20-30 parts, waste molasses 10-20 parts, brewer's yeast powder 1-5 parts, xylo-oligosaccharide industrial residue 1-3 parts, and a composite fermentation agent containing lactobacillus plantarum, bacillus coagulans and propionic acid-producing propionibacterium 1-3 parts. The fermentation process adopts a two-stage pH control timing inoculation process: in the first stage, brewer's yeast is inoculated; in the second stage, the composite fermentation agent is inoculated under acidic conditions, and through synergistic metabolism, the sugar source is efficiently converted into a short-chain fatty acid composite system mainly composed of lactic acid and propionic acid. The prevention and control effect on rape root rot is significantly improved, and the composition also has the functions of improving soil and promoting crop growth, and has the advantages of high efficiency, environmental protection and multi-effect combination.

Aqueous gel, its use in cosmetics and process to reduce the sticky effect felt during its application. Aqueous gel comprising from 0.5% wt to 5.0% wt of a crosslinked anionic polyelectrolyte (PA) comprising from 5.0% mol to 95.0% mol of monomeric units from 2-methyl-2-((1-oxo-2-propenyl)amino)-1-propanesulfonic acid partially or totally salified as an alkali salt or ammonium salt, from 4.9% mol to 90.0% mol of monomeric units of N,N-dialkylacrylamide and from 0.1% mol to 5.0% mol of monomeric units from a monomer of formula CH2=C(CH3)-C(=O)-O-(CH2-CH2-O-)n-R5; from 0.5% mass to 9.5% mass, either of an alkanol of formula R1-OH, or of a mixture of alkanols of formula R1-OH; or of a composition (C) of alkyl polyglycosides represented by the formulas R1-O-(G)xH, in which G represents either the remainder of glucose or the remainder of xylose and x represents a decimal number between 1.05 and 2.05;either a mixture (M) of said alkanol of formula R1-OH or of said mixture of alkanols of formula R1-OH and of said composition (C); from 0.0% mass to 3.0% mass one or more cosmetic active ingredients and the quantity of water necessary to make up to 100% mass in which the mass ratio (RM) having as numerator the mass of the alkanol(s) of formula R1-OH, or the mass of said composition (C) or the mass of said mixture (M) and as denominator, the mass of said cross-linked anionic polyelectrolyte (PA), is greater than or equal to 1 and less than or equal to 10; cosmetic skin care process using said aqueous gel; use, either of said alkanol of formula R1-OH, or of a mixture of alkanols of formula R1-OH, or of said composition (C) or of said mixture (M), with a view to reducing or eliminating the sticky effect felt when applying to the skin an aqueous gel comprising said anionic polyelectrolyte (PA);process for reducing or eliminating the sticky feeling experienced when applying an aqueous gel comprising said anionic polyelectrolyte (PA) to the skin by modifying its composition before application to the skin, by adding either the alkanol(s) of formula R1-OH, or said composition (C), or said mixture (M).;

This application discloses a method for preparing Bosein. The method includes the following steps: mixing 1-C-(β-D-xylanosyl)-acetone, an alcohol solvent, an inorganic acid / base, and a reducing agent; reacting the mixture; filtering; desalting; decolorizing; and distilling to obtain Bosein with a purity of over 98%. The isomer ratio of the Bosein is in the range of (β, S) / (β, R) of 99:1 to 30:70. The isomer ratio is controllable, the operation is simple, and the obtained Bosein has a wide range of isomer ratios and good chemical purity.

The application discloses a kind of recombination of Pseudomonas putida for producing L-lactic acid using whole-component lignocellulose hydrolysate and its construction method and application, belong to the field of metabolic engineering.The application uses Pseudomonas putida KT2440 as chassis, realizes carbon flow to pyruvic acid convergence and prevents product degradation by knocking out aceEF 、 ppsA And lldD Gene;By in-situ replacement, introduce optimized Lactobacillus plantarum ldhL1 Reconfiguration L-lactic acid synthesis pathway;By integration xylD-yjhH Tandem expression cassette enables xylose utilization;And by quorum sensing promoter P Rox306 Overexpression maeB Realize funnel conversion of lignin monomer.The application innovatively uses lignin derivatives in hydrolysate as natural donor of endogenous acetyl-coenzyme A, makes up lethal growth defect caused by knocking out aceEF The engineering bacteria of the application realize the synchronous high-efficiency conversion of glucose, xylose and aromatic monomer under the condition of not adding exogenous auxiliary carbon source and chemical inducer, which greatly reduces the industrial fermentation cost.

This invention belongs to the field of microbial metabolic engineering and industrial biotechnology, and relates to an engineered *Pichia pastoris* strain utilizing xylose as the sole carbon source, its construction method, and its applications. Specifically, it involves reconstructing the xylose assimilation pathway within the host strain by introducing genes for the XI-XK pathway, the non-oxidative phase of the PPP pathway, and the PK-PTA pathway into the *Pichia pastoris* host strain, thus obtaining the engineered strain; or, culturing the above-obtained engineered strain in a culture system utilizing xylose as the sole carbon source to obtain an engineered *Pichia pastoris* strain with xylose as the sole carbon source; or, optimizing key gene targets and / or metabolic pathways of the above-obtained engineered strain or the engineered *Pichia pastoris* strain with the sole carbon source to obtain an engineered strain. This invention provides a method for obtaining a *Pichia pastoris* strain capable of using xylose as the sole carbon source, which enhances the xylose assimilation pathway through metabolic reconstruction, thereby improving xylose utilization.

This invention relates to the field of sports nutrition food technology, and discloses a multivitamin formula and its preparation method, comprising the following components in parts by weight: 1.8-2.2 parts of mannose oligosaccharide, 1.8-2.2 parts of galacose oligosaccharide, 9-11 parts of xylooligosaccharide, 6.5-7.5 parts of fructooligosaccharide, 8.5-9.5 parts of maltitol, 1.8-2.2 parts of erythritol, 2.8-3.2 parts of galacose-mannan, 1.8-2.2 parts of stachyose, 13-15 parts of inulin, 38-42 parts of resistant dextrin, 0.20-0.24 parts of vitamin C, 0.45-0.55 parts of silicon dioxide, 0.010-0.014 parts of vitamin B1, and vitamin B2. 0.005-0.007 parts, folic acid 0.0009-0.0011 parts, γ-aminobutyric acid 0.45-0.55 parts, tyrosine 3.8-4.2 parts, magnesium lactate 3.8-4.2 parts; This invention forms a complex prebiotic system by simultaneously adding eight kinds of dietary fiber / oligosaccharides: resistant dextrin, inulin, xylooligosaccharide, fructooligosaccharide, galactooligosaccharide, mannose, galactomannan, and stachyose, which comprehensively regulates the intestinal flora and promotes the production of short-chain fatty acids.

This invention belongs to the field of biomedical technology, specifically disclosing a blood sugar-lowering probiotic and its application. The strain is Staphylococcus xylose (S. xylose). Staphylococcus xylosus. BC100, deposited on December 12, 2025, at the China General Microbiological Culture Collection Center (CGMCC) with accession number CGMCC No. 37053, located at Institute of Microbiology, Chinese Academy of Sciences, No. 3, Courtyard 1, Beichen West Road, Chaoyang District, Beijing. Compared with existing technologies, the fermentation broth of *Staphylococcus xylose* strain BC100 provided by this invention has the effect of inhibiting α-amylase and α-glucosidase activities. Furthermore, the fermentation broth of this strain combined with fruit enzymes exhibits even better inhibitory effects, particularly when combined with lemon enzymes and apple enzymes. This strain can be used to develop oral or other products for lowering blood sugar and has significant application value.

The application discloses a silage fermentation accelerator based on enzyme and bacteria cooperation and a preparation method thereof, and belongs to the technical field of feed preparation, and comprises the following steps: S1: taking sterilized selenium-rich wheat bran and sterilized yeast hydrolysate as carriers, mixing cellulase, xylanase, ferulic acid esterase, phytase and tannase to prepare a composite carrier enzyme; mixing composite bacteria powder and selenium-rich yeast powder to prepare an active mixture; mixing xylo-oligosaccharide, betaine and vitamin E to prepare active material to be embedded; S2: taking chitosan and sodium alginate as a skeleton, mixing N-isopropyl acrylamide, ammonium persulfate and N,N'-methylene bisacrylamide, and in-situ polymerizing to construct a temperature-sensitive hydrogel, and then performing dialysis, freeze-drying and grinding to prepare a temperature-sensitive embedding liquid; S3: rotating and shearing the active material to be embedded and the temperature-sensitive embedding liquid to prepare embedding suspension liquid to be sprayed, and then performing continuous spray embedding to prepare temperature-changing microcapsule particles, namely the silage fermentation accelerator based on enzyme and bacteria cooperation; and the application promotes silage fermentation.

This invention relates to the field of microbial technology, specifically to a xylose-oxidizing achromobacterium and its application in matcha tea cultivation and quality improvement. The xylose-oxidizing achromobacterium provided by this invention... Achromobacter xylosoxidans JHMC Fb2318, with accession number CCTCC NO:M 20251855 and accession date of August 19, 2025, shows that foliar spraying of this strain on tea trees during seedling cultivation and planting under low light and shading conditions can promote root formation and increase the survival rate of cuttings under low light conditions; increase the weight of 100 buds and the length of buds under low light conditions; increase the content of chlorophyll a, chlorophyll b, and total chlorophyll; and decrease the chlorophyll a / b ratio. It also increases the amino acid content and decreases the caffeine content in matcha made from tea trees, demonstrating its potential application in matcha production.

The present application relates to a kind of one-pot two-step catalytic xylose preparation gamma-pentyl lactone method, belong to biomass energy chemical technology field.The present application uses xylose as substrate, in anaerobic environment, using catalyst Hβ-30 catalyzes xylose reaction conversion into furfural, catalyst Hβ-30 catalyst is removed from reaction liquid to obtain furfural crude solution;With furfural crude solution as second reaction substrate solution, cellulose carbon modification Zr / β catalyst and isopropyl alcohol solvent are added into furfural crude solution, in anaerobic environment, catalytic furfural is efficiently converted into gamma-pentyl lactone.The present application can be directly prepared from xylose one-pot two-step method gamma-pentyl lactone, avoid the separation and purification of unstable intermediate product, with the characteristics of high degree of integration of catalytic system, gamma-pentyl lactone yield is high.

The present application relates to the technical field of feed additive, in particular to a kind of microbial oligosaccharide synergistic feed additive and preparation method thereof, by mass percentage, 0.5%-5% complex microorganism, 1%-10% complex oligosaccharide, 0.2%-0.8% nutrition enhancer and the rest are composed of composite carrier;The complex microorganism is composed of bacillus licheniformis and lactobacillus plantarum, and the mass ratio of the two is 2:1, 3:1 or 5:2;The complex oligosaccharide is at least composed of chitosan oligosaccharide and xylo-oligosaccharide in a mass ratio of 1:1;The composite carrier is at least composed of soybean meal, bran and corn flour, and the mass ratio of the three is 10:8:0.5, 10:9:0.8 or 10:10:1;The complex oligosaccharide is at least composed of chitosan oligosaccharide and xylo-oligosaccharide in a mass ratio of 1:1.The microbial oligosaccharide synergistic feed additive and preparation method provided by the present application effectively solve the technical problems of poor synergistic effect, low stability and low utilization rate of existing microbial oligosaccharide feed additive, and the overall technical effect is remarkable.

The present invention discloses a medicated and edible homologous formula food for improving qi deficiency constitution and its preparation process, belonging to the technical field of functional foods. This formula food uses multiple medicated and edible homologous raw materials such as Ganoderma lucidum, Codonopsis pilosula, Astragalus membranaceus, Lentinula edodes, Poria cocos, Dolichos lablab, etc., and adds prebiotic components such as fructo-oligosaccharide, xylo-oligosaccharide, inulin, etc. It strictly follows the compatibility principle of monarch, minister, assistant and guide, and scientifically formulates the prescription in combination with the law of generation, restriction, control and transformation of zang-fu organs, qi and blood. The present invention solves the problems that existing foods for improving qi deficiency constitution have weak qi-tonifying power, incomplete conditioning, and do not consider the secondary blood deficiency, blood stasis and qi stagnation caused by qi deficiency. It realizes qi-tonifying while taking into account soothing the liver and regulating qi, nourishing blood and harmonizing blood, promoting digestion and relieving stagnation, and regulates the intestinal flora through prebiotics to promote the generation of primordial qi in the lung and the generation and transformation of qi and blood. The preparation process adopts water decoction extraction, concentration and drying, and then compounding with prebiotics, and can be made into beverages or solid beverages. The process is simple and suitable for industrial production. The raw materials are all both medicinal and edible products, and long-term consumption has a significant effect on improving qi deficiency constitution.

This application relates to a method for extracting xylose and glucose from straw sugar raw materials. The method includes: S1. Filtering the straw sugar raw materials obtained by enzymatic hydrolysis through a microfiltration membrane to obtain a straw sugar clear liquid; S2. Filtering the straw sugar clear liquid obtained in S1 through a nanofiltration membrane to obtain a straw sugar nanofiltration membrane clear liquid; S3. Subjecting the straw sugar nanofiltration membrane clear liquid obtained in S2 to decation treatment, decolorization treatment, and reverse osmosis concentration treatment to obtain a first processed liquid; S4. Subjecting the first processed liquid to electrodialysis desalination treatment and a second concentration treatment sequentially, or directly subjecting the first processed liquid to a second concentration treatment to obtain a second processed liquid; S5. Subjecting the second processed liquid to ion exchange treatment and a third concentration treatment sequentially to obtain a third processed liquid; S6. Chromatographically separating the third processed liquid in a chromatographic system to obtain a first extract rich in glucose and a second extract rich in xylose. This method yields a refined glucose mixture and xylose crystals with high yield and low conductivity, suitable for use in fermentation production, food additives, etc.

This invention is a method for the graded utilization of all components of Arundo donax through segmented fiber crushing. This method, through the coordinated design of front-end and back-end processes, systematically couples customized agronomic front-end processes, differentiated component separation paths, and a shared environmentally friendly purification platform to achieve the joint production of multiple series of high-value products from a single Arundo donax raw material. The method includes the following steps: customized production and supply of targeted raw materials; differentiated separation and pretreatment of whole-plant components; and high-value conversion of components based on the shared purification platform: high-value conversion of leaves to obtain high-purity Arundo donax flavonoids and Arundo donax leaf powder; separation and derivatization of the three culms to obtain xylose / syrup and high-purity lignin, as well as further derivatization to prepare various bio-based chemicals and bio-based materials, including lactide, polylactic acid resin, nanocellulose, and bamboo-based plastic composite materials. This invention achieves efficient, clean, and high-value utilization of all components of Arundo donax, forming a complete industrial chain.

This invention discloses a reagent kit and method for the joint detection of glucose, cellobiose, and xylose in cellulose hydrolysate, belonging to the field of biomass conversion and analytical detection technology. The method includes the following steps: setting up three types of detection channels: a glucose oxidase detection channel that specifically responds to the glucose component; a β-glucosidase-glucose oxidase combined detection channel that responds to the total signal of glucose and cellobiose; and a pyranose oxidase detection channel that simultaneously responds to the combined signals of glucose, cellobiose, and xylose. Enzymatic colorimetric reactions are performed on the cellulose hydrolysate sample and the multi-component gradient standard solution in the three types of detection channels, respectively. A ternary linear calibration model is constructed based on the absorbance data of the three types of channels of the multi-component gradient standard solution. This method provides a rapid, low-cost, and highly specific detection method for glucose, cellobiose, and xylose in cellulose biomass hydrolysate, and has practical application value.

The application discloses a preparation method of CaO-based bifunctional material, the CaO-based bifunctional material and application thereof. The preparation method comprises the following steps: adopting impregnation, hydrothermal synthesis or sol-gel method, blending or reacting carbon capture metal precursors, catalyst metal precursors, auxiliary metal precursors, xylose, glycine and urea to form a mixture; and then calcining the mixture in air at 400-900 DEG C for 2-6 hours to obtain the CaO-based bifunctional material. The application has the advantages of high CO2 adsorption capacity and fast conversion rate, and can basically keep the capture time, so that efficient and convenient ICCU-methanation is realized.

This application belongs to the field of fish protein gelatin preparation technology, specifically relating to a method for preparing high-purity fish protein gelatin and its deodorization process. Pretreated fish scales are soaked in a citric acid solution to remove calcium. The soaked fish scales are then added to water and sheared to obtain a fish protein gelatin extract. Solid-liquid separation is performed, followed by drying to obtain high-purity fish protein gelatin. This extract is then dissolved in water with xylose and mixed thoroughly, followed by freeze-drying. The resulting freeze-dried sample undergoes superheated steam-assisted glycosylation. After glycosylation, the glycosylated fish protein gelatin is dissolved to obtain deodorized fish protein gelatin. This invention achieves efficient extraction and deep deodorization of fish protein gelatin through an integrated process of low-temperature high-speed shearing and superheated steam-assisted glycosylation, significantly improving product purity and providing a feasible technical foundation for the industrial application of fish protein gelatin in high-end fields such as food, pharmaceuticals, and cosmetics.

The application discloses a processing method for reducing heterocyclic amines in barbecue meat while maintaining characteristic flavor, and belongs to the technical field of food processing. The application solves the technical problems of high heterocyclic amine generation in the high-temperature roasting process of the existing barbecue method and insufficient flavor caused by simply reducing the temperature. The method comprises the following steps: soaking fresh meat pieces in a phosphate buffer solution containing glucose oxidase and catalase for low-temperature treatment after the fresh meat is cut into pieces; preparing a flavor precursor coating liquid composed of xylose, cysteine, glycine, peanut oil and water and performing high-speed shear emulsification treatment; immersing the drained meat pieces in the coating liquid to make the surface uniformly adhere; and then placing the coated meat pieces in a far-infrared oven for roasting while inserting a probe type thermometer to monitor the center temperature. The application is mainly used in the field of barbecue meat processing and can effectively reduce the generation of heterocyclic amines while effectively maintaining the characteristic flavor of the roasted meat.

The present application relates to pulping and papermaking technical field, specifically to a kind of hydrogen peroxide reinforced alkali extraction preparation super bamboo bleach pulp method.The present application research finds that in super bamboo kraft pulp bleaching process, sodium hydroxide, hydrogen peroxide and bleaching reaction time and xylose dissolution amount between there is a significant correlation, constructs hydrogen peroxide reinforced alkali extraction-xylose dissolution amount model, provides powerful tool for regulating bleaching condition in actual production process, further improves the scientificity and practicality of research.

This invention discloses a cat food with added plant-derived organic selenium and its function of regulating intestinal flora, as well as a method for preparing the same. The cat food is based on a standard cat food formula and fortified with probiotics, prebiotics, and plant-derived organic selenium. The probiotics are added at a concentration of 60–80 × 10⁹ CFU / kg, comprising 3–4 strains. The prebiotics include inulin, fructooligosaccharides, and xylooligosaccharides, with inulin at 0.3–0.4%, fructooligosaccharides at 0.1%, and xylooligosaccharides at 50 mg / kg. The total selenium content in the cat food is 0.4–0.5 mg / kg, of which organic selenium accounts for 80–90%. Through the synergistic effect of probiotics, prebiotics, and plant-derived organic selenium, this cat food can improve the intestinal flora structure of cats, promote the growth of beneficial bacteria, enhance digestion, absorption, and immune regulation, and has good safety and application prospects.