53 results about "Gluconacetobacter xylinus" patented technology

The invention discloses a bio-fiber aloe mask and a preparation method thereof. The bio-fiber aloe mask is prepared by injecting an aloe gel extract serving as an active component into a proper quantity of bio-fibers serving as a base material according to a weight ratio and sealing the mixture. The weight of the aloe gel extract is 2-5 times of that of the bio-fibers; and the bio-fibers and the aloe gel extract are matched with each other, so that the biological efficiency of the bio-fibers and the aloe gel extract can be developed to the maximum extent. The bio-fibers are formed by cultivating gluconacetobacter xylinus, placing and fermenting the gluconacetobacter xylinus into a culture medium in which aloe gel juice is used as material liquid, and performing rinsing, drying and die-cutting; the aloe gel extract is prepared by cleaning, shelling, crushing and juicing fresh aloe leaves and extracting polyhydric alcohol; and the bio-fibers can fully adsorb the aloe gel extract, and then the raw materials are bagged and sealed. The raw materials are pure natural foods and have no side effect; the initial effect can be achieved for a short time; and after a user uses the bio-fiber aloe mask for a long time, the good beautifying and skin-caring effects of beautifying, humidifying, removing acnes, removing speckles, controlling oil, sunscreening, changing face, recovering, restraining pores, smoothing skin and the like can be achieved.

The invention discloses a bacteria cellulose producing strain and a method for fermenting the bacteria cellulose by utilizing the same. The strain is gluconacetobacter xylinus BC13 and preserved in China Center for Type Culture Collection (CCTCC) on April 10, 2014, the address of CCTCC is Wuhan Universality of China, and the preservation number is CCTCC No. M2014124. The method for fermenting the bacteria cellulose comprises the following steps of fermenting by alternating the deep layer dynamic way and the shallow layer static way, wherein since the deep layer dynamic fermentation time is relatively short, no flocculent or spherical bacteria cellulose is formed; and completing the fermentation by adopting the shallow layer static way, wherein the final product is the membrane-shaped bacteria cellulose. Compared with the prior art, the method has the advantages that the production period can be obviously shortened, and the yield of the bacteria cellulose can be greatly increased.

The invention discloses a bacterial cellulose fermentation medium and a method for producing bacterial cellulose by utilizing the medium, belonging to the technical field of biology. Every liter of the bacterial cellulose fermentation medium comprises 25-35g of cane sugar, 4-5g of beef extract, 4-5g of disodium hydrogen phosphate, 0.8-1.0g of citric acid, 8-10g of ethanol and the balance of hydrolysate of distillers' grains, wherein the pH value of the fermentation medium is 5.5-6.5. The method for producing the bacterial cellulose by utilizing the medium comprises the following steps: (1) activating and propagating gluconacetobacter xylinus to obtain a gluconacetobacter xylinus seed solution, inoculating the gluconacetobacter xylinus seed solution into the bacterial cellulose fermentation medium for fermentation, thus obtaining bacterial cellulose fermentation liquor; and (2) treating a bacterial cellulose membrane in the bacterial cellulose fermentation liquor to obtain the bacterial cellulose product. The method has the advantages of low cost, simple process, convenient industrial production and the like, the stability and reproducibility are high, the yield of the bacterial cellulose obtained through fermentation is more than 10g / L, and the method is suitable for large-scale production.

The invention discloses a preparation method and application of a nanoscale bacterial cellulose membrane, and belongs to the technical field of comprehensive utilization of fermentation byproducts. The method comprises the following steps of: with pretreated waste bacteria solution or waste bacteria as fermentation raw materials, adjusting the content of nutritional ingredients in a fermentation medium, and inoculating 5-20% activated gluconacetobacter xylinus for static fermentation to obtain the nanoscale bacterial cellulose membrane. Proper treatment is carried out on the obtained bacterial cellulose membrane; a mask nutrient solution is added for low-temperature packaging, so that the beauty mask with a high added value is obtained; the mask is better in fitness and moisture retentiveness than an ordinary non-woven mask; meanwhile, the production cost is greatly reduced; the preparation cost of the mask material can be reduced by at least 99%; the overall production cost is reduced by at least 70%; and the preparation method has great market competitiveness.

The invention discloses monascus-nata complex and a preparation method thereof. The monascus-nata complex is prepared by inoculating gluconacetobacter xylinus seed liquid and red kojic rice into a coconut water culture medium for fermentation, wherein the gluconacetobacter xylinus seed liquid is prepared by adding sucrose, (NH4)2SO4, KH2PO4, MgSO4 and yeast extract into coconut water, and taking gluconacetobacter xylinus as a strain; and the red kojic rice is prepared by soaking and steaming long shaped rice, inoculating amaranthine aspergillus for fermentation, drying and crushing. The invention combines various health care functions of high-fiber nata de coco and red yeast rice together, is beneficial to promoting the development of the nata de coco processing industry and has important application values in the aspects of economic benefits, social benefits, and the like.

The invention relates to a carbonized bacterial cellulose-cadmium sulfide composite photocatalytic material as well as a preparation method and application thereof. The photocatalytic material is prepared by using the following methods: 1) inoculating Gluconacetobacter xylinus into a culture medium A, carrying out dynamic culture for 96 hours, collecting a bacterial cellulose product, washing, drying, and further carrying out vacuum freeze drying so as to obtain bacterial cellulose aerogel; 2) dissolving a fixed amount of thiourea and cadmium sulfide into ultrapure water, adding a proper amount of the bacterial cellulose aerogel, and carrying out a hydrothermal reaction at a high temperature and high pressure; 3) carrying out high-temperature calcining on the bacterial cellulose aerogel-cadmium sulfide compound product in a tubular furnace, thereby obtaining the carbonized bacterial cellulose-cadmium sulfide composite photocatalytic material. The preparation method provided by the invention has the advantages of being simple in operation, low in cost, and the like. The obtained carbonized bacterial cellulose-cadmium sulfide composite photocatalytic material can be used as a catalyst in water hydrogen generation of photocatalysis splitting.

A composite of bacterial cellulose and capsules embedded therein is prepared, for example calcium alginate capsules encapsulating functional components being discretely embedded in a matrix of Gluconacetobacter xylinus cellulose. The functional components may be drugs, probiotics or nutrients, such as fungal polysaccharide.

The invention belongs to the technical field of environmental protection and discloses a compound deodorant. The compound deodorant comprises a physical-chemical deodorant with capacity of rapid deodorization and a biological deodorant with capacity of continuous deodorization, wherein the physical-chemical deodorant not only can remove volatilized stink, but also can form a physical film rapidlyto prevent malodorous gas from volatilizing; the biological deodorant is a complex microbial agent prepared from seven bacteria including Saccharomyces cerevisiae, Gluconacetobacter xylinus, Streptococcus thermophiles, Sporolactobacillus inulinus, bacillus coagulans, Aspergillus oryzae and Monascus pilosus, and can inhibit breeding of putrefying bacteria and change metabolic pathways of nitrogen,sulfur and other elements, thereby eliminating the stink fundamentally; the physical-chemical deodorant and the biological deodorant are compounded to realize the rapid and continuous deodorization effect. The compound deodorant adopts a reasonable process, is low in cost and easy to implement and has good environmental benefit and social benefit.

The invention discloses a preparation method of an antibacterial composite bacterial cellulose membrane. The preparation method comprises the following steps: by adopting gluconacetobacter xylinus TJU-S8 as a starting strain, standing for culture to generate bacterial cellulose, and by adopting the bacterial cellulose as a material and combining with chitosan / carboxymethyl chitosan, preparing the composite bacterial cellulose membrane with an antibacterial property and compact fiber structure. The preparation method disclosed by the invention has the advantages that the defect of no antibacterial property of the bacterial cellulose is solved, a preparation process of an antibacterial composite membrane capable of inhibiting growth of escherichia coli and staphylococcus aureus is formed, the antibacterial activity of the bacterial cellulose composite membrane is improved, and a new path is provided for expanding the application field of bacterial cellulose. The antibacterial composite bacterial cellulose membrane obtained by the method is economic and environment-friendly, and is good in antibacterial effect.

The invention relates to a preparation method of composite bacterial cellulose medical dressing, and belongs to the technical field of biological material preparation. According to the method, firstly, saccharomyces cerevisiae, acetobacter aceti and gluconacetobacter xylinus are inoculated into a self made activation culture medium for activation culture; then, activated strains are inoculated into a seed culture medium for culture; then, seed liquid is inoculated into a fermentation tank and is subjected to anaerobic fermentation together with sodium alginate, chondroitin-sulfuric acid and the like; next, an obtained bacterial cellulose membrane is taken out, and thalli and the culture medium are removed; finally, the bacterial cellulose membrane and sanguisorba officinalis extracts are subjected to operation such as freeze drying and buffer solution soaking; the composite bacterial cellulose medical dressing is obtained. The problem that the biological dressing cannot be used for a dry wound is solved; the medical dressing prepared by the invention can penetrate through hard necrotic tissues to enter the wound inside, so that the wound is fast healed; in addition, when the medical dressing acts on cartilage tissues, the cartilage tissue growth can also be promoted.

The invention discloses a preparation method of natural lemon liquid fermented fruit vinegar. The preparation method comprises the steps: picking up lemon fruits, juicing, adjusting the sugar content, heating, insulating heat and cooling; mixing wine yeast, saccharomyces cerevisiae and streptococcus pasteurianus to obtain a mixed strain; transferring the lemon juice to the mixed strain, and fermenting to obtain a fermentation liquid; mixing acetobacter pasteurianus, gluconacetobacter xylinus and glucinacetobacter hansenii to obtain mixed acetic acid bacteria; transferring the fermentation liquid to the mixed acetic acid bacteria and fermenting to obtain lemon fermented vinegar; adding chitosan to the lemon fermented vinegar, clarifying, and sterilizing to obtain the natural lemon liquid fermented fruit vinegar. The acid components of the product are capable of dredging and softening blood vessels, killing bacteria, enhancing human immunity and virus resisting capability, improving digestion system, and cleaning digestive tracts, and have obvious blood fat reducing and health preserving functions; the natural lemon liquid fermented fruit vinegar is high in alcohol and acetic acid content, high in fermentation speed and good in flavor, has special fruit flavor of lemons and also has special flavor of lemon juice fermented fruit vinegar.

The invention discloses a Gluconacetobacter xylinus strain capable of producing free glucuronic acid, belonging to the field of bioengineering. The screened Gluconacetobacter xylinus Q1 strain is collected by China Center for Type Culture Collection on July 23rd, 2014, and the collection number is CCTCC M2014353. The Gluconacetobacter xylinus strain is screened and separated from tea fungus, and can produce glucuronic acid by fermentation by using glucose as the substrate; and the free glucuronic acid content under simple fermentation conditions is 12.96 mg / L or so.

The invention discloses a preparation method of BC (bacterial cellulose) with high deformation resistance. The method comprises the steps as follows: (1) agar in the ratio being 0.05%, 0.15% and 0.2%(W / V) is added to a fluid medium, sterilization is performed at 121 DEG C for 20 min, and a semi-solid medium is prepared; (2) the semi-solid medium is inoculated with gluconacetobacter xylinus, the semi-solid medium is placed in a constant-temperature incubator at 30 DEG C for culture for 5 days, and a BC membrane is produced; (2) the membrane is taken out and washed with water repeatedly for removal of the medium and impurities on the membrane surface, the membrane is soaked in 0.1 mol / L of a NaOH solution until the membrane is milky white and semi-transparent, then, the membrane is washed with distilled water repeatedly, and the pH value of the membrane is neutral through slight press of pH test paper; (3) the BC is pressed to be dried at 80 DEG C for mechanical performance tests. The Young modulus of the BC membrane is enlarged, the larger the Young modulus, the probability of deformation is lower, the application range of the BC is further broadened and the application value is increased with the preparation method, and a foundation is laid for preparation of multiple multifunctional composite materials with excellent performance.

The invention provides a microbial fermentation agent and an application thereof as well as a method for fermenting animal wastes into an organic fertilizer, and relates to the technical field of microbial fermentation. The microbial fermentation agent provided by the invention comprises bacillus subtilis, Bacillus thuringiensis Berliner, Trichoderma reesei Simmons, Gluconacetobacter xylinus, Sporolactobacillus inulinus, Mycobacterium wolinskyi, Klebsiella pneumoniae, Trichothecium roseum and Erwinia. By coordinating and cooperating with one another, the strains form a microbial system that can ferment animal wastes quickly and efficiently without any impact or burden on the environment. The method for fermenting animal wastes into an organic fertilizer, provided by the invention, utilizesthe microbial fermentation agent provided by the invention, and has the advantages of low cost, simple and convenient operation, high speed and efficiency, and easy popularization. In addition, the prepared fermentation product contains rich organic matters and nutrient substances, and can effectively utilize resources to provide an efficient fertilizer for agriculture.

The invention relates to a method for improving the yield of nata de coco. The method comprises the following steps of: mixing naturally fermented coconut water and water, adding sucrose to regulate the Brix sugar degree, regulating the pH value to 3.6-4.0 to form a fermentation solution, and adding (NH4)2SO4, KH2PO4, MgSO4, Vc, UDP-Glucose and Na2SO3 into the fermentation solution; and inoculating 5 percent of gluconacetobacter xylinus culture mother solution to the fermentation solution, standing, culturing for 4 to 6 days, and thus harvesting the nata de coco. The method is simple in process and convenient to operate; by adding the Vc, the UDP-Glucose and the Na2SO3 into the fermentation solution, the antioxidant activity in the fermentation solution can be improved, the oxidative stress of bacterial cells is reduced, the cellulose synthesizing capability of the bacterial cells is effectively improved, and many problems of insufficient raw material supply, low yield of the nata de coco, poor recycling effect of the fermentation solution and the like in production practice are effectively solved; and the method has important economic benefits and social benefits for sustainable development of the nata de coco industry.

The invention discloses an outer power line sheath for a rechargeable battery charger of a battery cart. The outer power line sheath comprises the following raw materials in parts by weight: 60-70 parts of main materials, 1-2 parts of hexahydrophthalic anhydride, 0.5-1.2 parts of cyclohexane peroxide, 1-2 parts of trimethylol propyl triacrylate, 2-6 parts of composite flexibilizer, 85-95 parts offilling reinforcing agent, 1-2 parts of aluminum-zirconium coupling agent, 1-2 parts of stearic acid, 0.1-0.8 part of yttrium oxide, 0.5-1.5 parts of pine tar, 1-2 parts of disproportionated rosin, 1-2 parts of an antioxidant TNP (trinitrophenyl group), and 1-2 parts of an antioxidant BHT (butylated hydroxytoluene), wherein the composite flexibilizer is prepared by the following processes: uniformly mixing a yeast extract, glucose and water; inoculating gluconacetobacter xylinus; dynamically culturing through a shaking table; filtering; washing with water; adding polyvinyl alcohol, ethylene glycol and p-toluenesulfonic acid; adding epoxidized soybean oil and triphenyl phosphorus under nitrogen protection; cooling; and filtering to obtain the composite flexibilizer.

The invention discloses a method for preparing heavy metal removed pea protein from pea starch wastewater by virtue of a fermentation method. The pea starch wastewater is fermented to generate organic acid to chelate primary heavy metals by virtue of gluconacetobacter xylinus, secondary heavy metals in the pea protein are adsorbed by virtue of thalli of the gluconacetobacter xylinus and bacterial cellulose generated by the gluconacetobacter xylinus, and tertiary heavy metals in the pea protein are finally eluted by acid precipitates in a pea protein refining process. According to the method, the pea protein in which heavy metals reach the standard and which are high in protein content is obtained by combining refining of the pea protein from the pea starch wastewater with the fermentation method and three-step removal of the heavy metals in the pea proteins.

The invention relates to a mixed fermentation strain used for fermentation of biological cellulose, wherein the mixed fermentation strain comprises gluconacetobacter xylinus, zymomonas mobilis, bifidobacterium and / or lactobacillus acidophilus. The ratio of the gluconacetobacter xylinus to the zymomonas mobilis to the bifidobacterium and / or lactobacillus acidophilus is (10-20):(7-15):(3-8), preferentially 17:11:5. The strains are subjected to activation culture before use. The ratio of the strains is the volume ratio of a seed solution obtained through activation and then expanding culture. The mixed strains mutually benefit and form a symbiotic situation. The time for the formation of a biological cellulose gel membrane is prolonged, the conversion rate of a carbon source to a reducing sugar is improved, and the capability of producing the membrane through the fermentation of the biological cellulose is greatly improved.

The invention discloses a method for screening special acetic bacteria strains in Fujian red rice vinegar, which relates to the table vinegar. The method comprises the following steps: taking red rice wine as a carbon source to concentrate special acetic bacteria for the Fujian red rice vinegar; preliminarily screening the special acetic bacteria strains for the Fujian red rice vinegar; re-screening the special acetic bacteria strains for the Fujian red rice vinegar and comparing the acid production capability of different preliminarily-screened strains, wherein the strains which can produce acid rapidly in a culture medium in which the concentration of ethanol is higher than 4% are the special acetic bacteria strains for the Fujian red rice vinegar. The strains are Y5052 and Y5072. As authenticated, the Y5052 and the Y5072 are both gluconacetobacter xylinus. The method adopts two key techniques, one i adding the red rice wine to concentrate target strains in yeast, and the other one is adoption of a culture medium slab containing high-concentration methanol so that the acetic bacteria strains form a transparent hydrolysis ring on the slab, so that the success rate of the screening is increased. Due to adoption of a concentration method of adding the red rice wine in the yeast and a screening method of adding the high-concentration methanol into the slab, the screening process can be simplified and the screening efficiency can be improved.

The present invention discloses a cactus and ginkgo enzyme and a preparation method thereof, and belongs to the technical field of fermented food. The ginkgo and cactus are used as raw materials; andanaerobic fermentation is carried out by using saccharomyces cerevisiae, lactobacillus plantarum and gluconacetobacter xylinus as fermenting microorganisms. The enzyme prepared by the method has a free radical scavenging rate of 90% or more and a SOD enzyme of 460 U / mL, can enable beneficial components in the raw materials to be dissolved out more, enables the total flavonoid content to reach 3,679 mg / L or more, and has very good health-care functions.

The invention relates to an environmentally-friendly bio-cellulose mask matrix and a preparation method thereof. The environmentally-friendly bio-cellulose mask matrix is prepared by the following method: 1) taking fresh clean banana peel, adding water and crushing the mixture in a crusher into pulp, conducting aerobic fermentation and filtering to obtain a desired banana peel extract; 2) using the banana peel extract as a medium, moving the medium into a mold, inoculating gluconacetobacter xylinus and culturing to obtain a bio-cellulose mask matrix. The banana peel is developed and utilized as the main nutrient in the microbial culture medium innovatively, fully exploits the potential value of the banana peel, and utilizes waste resources to reduce waste of resources and turn the waste into treasure. The production process can effectively reduce the energy consumption and environmental pollution in the existing mask production process, and create higher economic benefits.

The invention discloses a method for preparing an antibacterial ecological composite board. The method comprises the following steps: grinding bamboo wood, and drying so as to obtain a prefabricated material; adding cellulose gel into the prefabricated material, adding polyethylene glycol and water for uniform mixing, raising the temperature, maintaining the temperature, and cooling; adding titanium dioxide, disproportionated rosin and a polyurethane adhesive for uniform mixing, paving and pre-pressing in a mold, molding, and naturally airing, so as to obtain the antibacterial ecological composite board. The cellulose gel is prepared by the following process steps: uniformly mixing beef extract, corncob powder, glucose and water, inoculating gluconacetobacter xylinus, performing dynamic culture in a shake table, filtering, and washing, so as to obtain the cellulose gel. The prepared antibacterial ecological composite board is excellent in antibacterial property, high in product density and difficult to crack.

The invention discloses a fertilizer for indoor potting asparagus fern. The fertilizer comprises the following raw materials in parts by weight: 100-110 parts of main ingredient, 20-40 parts of fermented rape seed cake, 5-15 parts of alternanthera philoxeroides, 10-20 parts of pond sludge, 2-8 parts of corn straw powder, 3-8 parts of molasses powder, 2-4 parts of mushroom dreg, 0.01-0.02 part of gluconacetobacter xylinus, 0.01-0.03 part of yeast, 1-2 parts of guar gum, 1-2 parts of microcrystalline cellulose, 1-2 parts of potato starch and 2-4 parts of microelements. The main ingredient comprises the following components in parts by weight: 40-50 parts of urea compound, 10-18 parts of sodium nitrate, 15-25 parts of zinc ammonium phosphate, 4-12 parts of potash magnesium sulphate fertilizer and 10-20 parts of animal bone meal. The urea compound is prepared according to the following steps: mixing cottonseed protein, maleic anhydride and glycerol; feeding into a ball mill for milling; adding water and uniformly mixing; adding fused urea and uniformly stirring; adding stearic acid; raising temperature and stirring under nitrogen shield; and cooling and drying, thereby acquiring the urea compound.

The invention discloses a bacterial cellulose fermentation medium and a method for producing bacterial cellulose by utilizing the medium, belonging to the technical field of biology. Every liter of the bacterial cellulose fermentation medium comprises 25-35g of cane sugar, 4-5g of beef extract, 4-5g of disodium hydrogen phosphate, 0.8-1.0g of citric acid, 8-10g of ethanol and the balance of hydrolysate of distillers' grains, wherein the pH value of the fermentation medium is 5.5-6.5. The method for producing the bacterial cellulose by utilizing the medium comprises the following steps: (1) activating and propagating gluconacetobacter xylinus to obtain a gluconacetobacter xylinus seed solution, inoculating the gluconacetobacter xylinus seed solution into the bacterial cellulose fermentation medium for fermentation, thus obtaining bacterial cellulose fermentation liquor; and (2) treating a bacterial cellulose membrane in the bacterial cellulose fermentation liquor to obtain the bacterial cellulose product. The method has the advantages of low cost, simple process, convenient industrial production and the like, the stability and reproducibility are high, the yield of the bacterial cellulose obtained through fermentation is more than 10g / L, and the method is suitable for large-scale production.

The invention relates a special high glucose culture medium for fermentation of biological cellulose, wherein the high glucose culture medium contains 15-25wt% of reducing sugar. When the high glucose culture medium is used for fermentation of the biological cellulose, an adopted fermentation strain is a mixed strain and comprises gluconacetobacter xylinus, zymomonas mobilis, bifidobacterium and / or lactobacillus acidophilus. After the three strains are used, the content of the reducing sugar in the culture medium is greatly improved to about 15-25wt% from the commonly less than 10wt%, the time for the formation of a biological cellulose gel membrane is prolonged, the conversion rate of a carbon source to the reducing sugar is improved, and the capability of producing the membrane through the fermentation of the biological cellulose is greatly improved.

The invention discloses a microbial composite soil conditioning fertilizer which is prepared from the following raw materials in parts by weight: 10 to 25 parts of monoammonium phosphate, 15 to 30 parts of urea, 25 to 35 parts of potassium chloride, 0.5 to 3 parts of manganese chloride, 0.5 to 2 parts of calcium hydrophosphate, 15 to 25 parts of gluconacetobacter xylinus, 20 to 30 parts of bacillus amyloliquefaciens and 25 to 35 parts of sphingobacterium thalpophilum. According to the microbial composite soil conditioning fertilizer disclosed by the invention, the stalk decomposing speed is quickened by adding microbial agents of the gluconacetobacter xylinus, the bacillus amyloliquefaciens and the sphingobacterium thalpophilum; thus, crop nutrient absorption and utilization are improved.By means of adding metal manganese ions and calcium ions, permeability of microbial cells is improved, and nutrient absorption is facilitated; thus, decomposition of the microbial agents of the gluconacetobacter xylinus, the bacillus amyloliquefaciens and the sphingobacterium thalpophilum to the stalks is improved. In addition, an experiment process shows that when the three microbial agents of the gluconacetobacter xylinus, the bacillus amyloliquefaciens and the sphingobacterium thalpophilum are simultaneously added, the decomposing speed of the microbial agents to the stalks can be optimal.

The invention discloses a preparation method of natural lemon liquid fermented fruit vinegar. The preparation method comprises the steps: picking up lemon fruits, juicing, adjusting the sugar content, heating, insulating heat and cooling; mixing wine yeast, saccharomyces cerevisiae and streptococcus pasteurianus to obtain a mixed strain; transferring the lemon juice to the mixed strain, and fermenting to obtain a fermentation liquid; mixing acetobacter pasteurianus, gluconacetobacter xylinus and glucinacetobacter hansenii to obtain mixed acetic acid bacteria; transferring the fermentation liquid to the mixed acetic acid bacteria and fermenting to obtain lemon fermented vinegar; adding chitosan to the lemon fermented vinegar, clarifying, and sterilizing to obtain the natural lemon liquid fermented fruit vinegar. The acid components of the product are capable of dredging and softening blood vessels, killing bacteria, enhancing human immunity and virus resisting capability, improving digestion system, and cleaning digestive tracts, and have obvious blood fat reducing and health preserving functions; the natural lemon liquid fermented fruit vinegar is high in alcohol and acetic acid content, high in fermentation speed and good in flavor, has special fruit flavor of lemons and also has special flavor of lemon juice fermented fruit vinegar.

The invention belongs to the field of biological materials, and in particular relates to a simple and fast method for producing PHB / bacterial cellulose composite materials, comprising: 1) cultivation of Ralstonia eutropha bacterial liquid; 2) cultivation of Gluconacetobacter xylinus bacterial liquid: 3) taking Ralstonia eutropha bacteria The solution is added to the basic culture solution containing Gluconacetobacter xylinus cells, dynamic culture and static culture are carried out, the bacteria solution is collected, and the bacterial cellulose / PHB composite product is extracted. The method of the invention can produce the required composite material by directly adding an appropriate amount of Ralstonia eutropha bacterial liquid in the cultivation process of Gluconacetobacter xylinus, and the method has the advantages of simple operation, low cost, mild condition, environment friendly and the like.

The invention discloses a preparation process of a chili sauce with a long shelf life and used for steamed fish heads with diced hot red peppers. The preparation process comprises the following steps:mixing yeast extract, glucose and water, conducting uniform stirring, inoculating the obtained mixture with gluconacetobacter xylinus, performing dynamic culturing in a shaker, conducting filtration,conducting washing with water, adding polyethylene glycol and pre-treating red peppers, conducting uniform mixing, adding water 3-6 times as much as the mixed mixture, conducting steaming until a moisture content is 35-45% by weight, and conducting filling, vacuum sealing and pasteurization to obtain the chili sauce with the long shelf life and used for steamed fish heads with diced hot red peppers. The invention contains no preservative, is not easy to oxidize, has a good mouth feel, rich nutrients, a simple process, and is convenient for practical operations.

The invention discloses monascus-nata complex and a preparation method thereof. The monascus-nata complex is prepared by inoculating gluconacetobacter xylinus seed liquid and red kojic rice into a coconut water culture medium for fermentation, wherein the gluconacetobacter xylinus seed liquid is prepared by adding sucrose, (NH4)2SO4, KH2PO4, MgSO4 and yeast extract into coconut water, and taking gluconacetobacter xylinus as a strain; and the red kojic rice is prepared by soaking and steaming long shaped rice, inoculating amaranthine aspergillus for fermentation, drying and crushing. The invention combines various health care functions of high-fiber nata de coco and red yeast rice together, is beneficial to promoting the development of the nata de coco processing industry and has importantapplication values in the aspects of economic benefits, social benefits, and the like.