50 results about "Acetobacter" patented technology

The invention discloses a decay-promoting and carbon-retaining agent and a preparation method, application and a verification method thereof. The decay-promoting and carbon-retaining agent comprises a complex microbial inoculant and a nutrient preparation, the complex microbial inoculant comprises the following substances in parts by weight: 2 parts of aspergillus oryzae, 4 parts of saccharomyces cerevisiae, 3 parts of bacillus subtilis, 2 parts of lactic acid bacteria, 4 parts of Koxime saccharomycetes, 3 parts of acetobacter aceti, 4 parts of aspergillus candidus, 1 part of deuteromycetes and 1 part of arthrobacter; the nutrient preparation comprises the following substances in parts by weight: 5 parts of urea, 2 parts of diammonium phosphate and 1.3 parts of potassium sulfate. According to the method, the method for verifying the effect of mixed application of the straw and the decay-promoting and carbon-retaining agent to the soil is constructed, and the 13C isotope tracing technology is combined to verify the SOC immobilization effect of the decay-promoting and carbon-retaining agent on the soil with different textures, so that the situation that the decay-promoting and carbon-retaining agent with different components can achieve more effective SOC immobilization on the soil with the different textures is obtained, and straw resources are fully utilized.

The invention provides a microbial agent for producing acid through fermentation of organic waste and application of the microbial agent, and relates to the technical field of biology, the microbial agent contains Acetobacter xylinum, Clostridium bovifaecis and Eubacter mucilaginosus, and the microbial agent is prepared from the following raw materials: Acetobacter xylinum, Clostridium bovifaecis and Eubacter mucilaginosus. Studies find that acetobacter burgii, clostridium cow dung and eubacterium mucilaginosus complement each other in the anaerobic fermentation process, the degradation efficiency of organic matters such as carbohydrates and proteins in the organic wastewater / perishable garbage is improved, the yield of volatile fatty acids is remarkably increased, meanwhile, the emission of CO2 is reduced, and the environmental pollution is reduced. The method has the application prospects of organic wastewater / perishable garbage treatment and recycling. When the acid-producing bacterium agent is applied to organic wastewater / perishable garbage, the fermented mixed acid liquid is rich in VFA and can be used as an organic carbon source, and the additional value is higher; when the acid-producing bacterium agent is applied to organic wastewater / perishable garbage, the operation is simple and convenient, the cost is low, biogas slurry treatment links and cost are reduced, the added value of products can be improved, and the acid-producing bacterium agent has an engineering application prospect.

The invention provides a preparation method of composite degradable TIEL aerogel, and relates to the technical field of production of TIEL aerogel. The preparation method of the composite degradable TIEL aerogel comprises the following steps: S1, firstly, preparing a culture medium, and dissolving 20g / L of glucose, 5g / L of yeast extract, 5g / L of peptone, 2.7 g / L of Na2.HPO4, 0.5 g / L of MgSO4. 7H2O and 1.5 g / L of citric acid in deionized water; s2, adjusting the pH value of the culture medium with HCl, then performing high-temperature sterilization treatment on the culture medium, cooling the culture medium to room temperature, inoculating pre-cultured acetobacter aceti into the culture medium, performing static culture for 7 days at 30 DEG C, then repeatedly cleaning the harvested film with deionized water, and removing impurities with an alkaline solution to obtain a fresh bacterial cellulose film. According to the cellulose aerogel, chitosan is introduced as a natural electron donor, so that the triboelectric property of the cellulose aerogel is optimized, and meanwhile, the degradability is kept.

The invention discloses a microbial complex microbial inoculant, a preparation method thereof and application of the microbial complex microbial inoculant in red mud treatment, and relates to the technical field of mine ecological restoration. The invention provides a composite microbial inoculant which comprises a microbial inoculant microorganism A, a microbial inoculant microorganism B and a microbial inoculant microorganism C in a weight ratio of (1-3): (1-4): 1, the microbial inoculum microorganism A is at least one of rhizobium, azotobacter, pseudomonas, bacillus, burkholderia and glomus; the microbial inoculum microorganism A is at least one of rhizobium, azotobacter, pseudomonas, bacillus, burkholderia and glomus; the microbial agent microorganism B is at least one of desulfurization vibrio, streptococcus, acetobacter and acidophilic thiobacillus; the microbial agent microorganism C is at least one of agrobacterium, enterobacter, streptomyces and klebsiella. The microbial agent disclosed by the invention can effectively solve the problems of high salt and alkali content of the red mud and heavy metal toxicity, and also can create conditions suitable for plant growth on the red mud, so that the ecological restoration effect is improved.

A method for treating silage to enhance the aerobic stability by increasing the fermentation and stabilization of silage is disclosed. The method comprises treating silage or feed with a composition comprising one or more of a Lactobacillus brevis (Levilactobacillus brevis) strain LB7148, deposited as Patent Deposit No. NRRL B-67991 and Lactobacillus buchneri (Lentilactobacillus buchneri) strain LN7149, deposited as Patent Deposit No. NRRL B-67992, including mixtures or mutant(s) thereof which retain their silage preservative activity and / or or the anti-Acetobacter spp. components produced by LB7148 and LN7149, respectively. The strains of Lactobacillus buchneri (Lentilactobacillus buchneri) and Lactobacillus brevis (Levilactobacillus brevis) disclosed herein have been purified, isolated, and when applied to pre-ensiled plant material found to inhibit the growth of Acetobacter spp. and to improve aerobic stability of silage.

A mixture includes a nickel-containing ore and / or concentrate thereof and an extraction composition including a fermentation broth obtained from an Aspergillus species (spp.), Acetobacter spp., Bacillus spp., Propionibacterium spp., Corynebacterium spp., Rhizopus spp., Clostridium spp., Fusobacterium spp., Pseudomonas spp., Bifidobacterium spp., Saccharomyces spp., Enterobacter spp., Escherichia spp., among others. The extraction composition is configured to selectively solubilize one or more components, such as a magnesium component from the nickel-containing ore and / or concentrate thereof. A method for extracting a metal from a nickel-containing ore and / or concentrate includes selectively solubilizing a magnesium component from the nickel-containing ore and / or concentrate thereof into an extraction composition including the fermentation broth. The method can include extracting a magnesium component from a nickel-containing ore and / or concentrate thereof into an extraction composition, separating the nickel-containing ore and / or concentrate thereof from an extracted magnesium component and broth, separating the broth from the extracted magnesium component, and repeating the extracting. The extracted magnesium component has a purity in a range from 10% to 90%.

The invention belongs to the technical field of microorganisms and fermentation, and discloses a method for synergistically fermenting ginseng powder through bacteria and enzymes, acetobacter aceti, ginseng spice and application, and the method comprises the following steps: (1) preparing a ginseng powder liquid culture medium; (2) inoculating acetobacter aceti and cellulase, and performing liquid fermentation for 24-36 hours; (3) inoculating amylase, and continuously fermenting for 96-120 hours; and (4) after fermentation is finished, supplementing ethanol until the final volume concentration of ethanol is 45-55%, stirring at normal temperature for 24 hours, standing, settling and filtering to obtain supernate, namely the ginseng spice. According to the preparation method, the earthy smell of the traditional ginseng spice can be remarkably reduced by the obtained ginseng spice through technologies such as bacterium-enzyme synergy and specific microbial fermentation metabolism control, meanwhile, the ginseng spice has typical aroma characteristics and is high in suckability, and meanwhile, the product quality of ginseng spice series cigarettes is effectively improved.

The invention discloses an ethanol-tolerant and acetic-tolerant acetobacter pasteurianus strain and application thereof in production of fruit vinegar. The invention provides an acetobacter pasteurianus CL247, the classification name of the acetobacter pasteurianus is Acetobacter pasteurianus, the acetobacter pasteurianus is preserved in China General Microbiological Culture Collection Center (CGMCC) on March 21, 2025, the preservation number is CGMCC No.33924, and the preservation address is Institute of Microbiology, Chinese Academy of Sciences, No. 3, Beichen West Road, Chaoyang District, Beijing. The acetobacter pasteurianus CL247 has the characteristics that the acid yield in 72 hours is greater than or equal to 49 g / L, and the acetobacter pasteurianus CL247 can tolerate 7% acetic acid and 18% ethanol. An efficient, tolerant and stable strain solution is provided for fruit vinegar production, the industry is promoted to be upgraded from'low-efficiency discontinuous' to'efficient continuous', and remarkable technical innovation and economic value are achieved.

This invention belongs to the field of vinegar brewing technology, and provides a multi-strain co-fermentation selenium-enriched active probiotic functional vinegar and its preparation method. Jujube enzymatic hydrolysate, malt juice, and ultrafine powder of Astragalus-Codonopsis compound traditional Chinese medicine are mixed in a certain proportion, and sodium selenite is added. Alcoholic fermentation is carried out using Saccharomyces cerevisiae CGMCC 34906. After alcoholic fermentation, acetic acid and lactic acid fermentation is carried out using a compound inoculum of Lactobacillus plantarum and Acetobacter pasteurization. After fermentation, the mixture is centrifuged, filtered, sterilized, post-ripened, blended, and sterilized. Active selenium-enriched Lactobacillus plantarum microcapsules are added, resulting in a double enhancement of selenium enrichment and active probiotics, yielding a selenium-enriched active probiotic functional vinegar. The vinegar is reddish-brown in color and has a complex aroma of jujube and malt fermentation, along with the aroma of traditional Chinese medicine. It has a mellow and pure sour taste with a long aftertaste. The flavor is rich and pleasant; total selenium ≥ 0.10 mg / L, and the number of viable lactic acid bacteria ≥ 10. 7 CFU / mL, polysaccharides ≥60.00 mg / 100 mL, saponins ≥2.50 mg / 100 mL.

The invention discloses Acetobacter peach and application thereof in prevention and treatment of postharvest diseases, and belongs to the technical field of microorganisms and the field of biological prevention and treatment of postharvest diseases. The Acetobacter persici NM-1 disclosed by the invention has an antagonistic effect on telosporium roseum and alternaria alternata, and has a remarkable prevention and treatment effect on postharvest diseases of apples such as red rot and black spot. The invention provides a biocontrol bacterium resource for prevention and treatment of apple red rot and black spot.

The invention discloses a method for enhancing the flavor of sea buckthorn fruit vinegar through synergistic fermentation of multiple strains combined with medicinal and edible raw materials. Wickerhamomyces anomalus YCJP320 with clear hereditary characteristics and proprietary intellectual property rights (CGMCC No. 33925, which can produce esterifying enzyme at high yield and increase aroma components such as ester components) and acetobacter pasteurianus CL247, CGMCC No. 33924, which can resist 18% ethanol and 7% acetic acid, and can produce acid efficiency are respectively used for alcoholic fermentation and acetic fermentation, and then fermentation is carried out, so that the fermentation efficiency is improved. According to the fermentation production process of the sea buckthorn fruit vinegar, ganoderma lucidum post-prebiotics, phellinus linteus post-prebiotics and medicinal and edible raw materials (astragalus membranaceus, dogwood and cinnamon) are used as fermentation culture medium components for nutrient enrichment, so that directional regulation and control of flavor substances and functional components of the sea buckthorn fruit vinegar are realized.

This invention discloses a strain of *Pediococcus pentosaceus* RL-10 and its application in bio-acidification rice soaking and bacterial cellulose production, belonging to the field of microbial technology. The preservation number of *Pediococcus pentosaceus* RL-10 is CCTCC NO: M 20252428. This invention is the first to use *Pediococcus pentosaceus* as a strain for bio-acidification rice soaking. Using rice soaking water as a production substrate, *Acetobacter Hansenulatus* and strain RL-10 are co-cultured in situ to produce bacterial cellulose loaded with antimicrobial peptides. Under certain process conditions, acidification of rice soaking by strain RL-10 can rapidly increase acidity and shorten soaking time. The bacterial cellulose production process of this invention is simple and low-cost; verification shows that the bacterial cellulose prepared by the method of this invention has high yield and good antibacterial activity, meeting the requirements of large-scale industrial production.

The invention belongs to the technical field of ink, and particularly relates to flash watercolor ink and a preparation method thereof. The raw materials comprise water, PEG, a dispersing agent, aluminum shimmering powder, a penetrating agent, a suspending agent, acrylic resin, a mildew preventive and dye. Wherein the suspending agent comprises at least one of a bacterial cellulose suspension, a modified bacterial cellulose suspension and microcapsule powder, the bacterial cellulose suspension is obtained by fermenting acetobacter aceti, and the modified bacterial cellulose suspension is obtained by modifying the bacterial cellulose suspension. The preparation method comprises the following steps: weighing the raw materials in parts by weight; adding water, PEG, a dispersing agent and a penetrating agent into a stirring container, and uniformly stirring to obtain a liquid phase; adding acrylic resin into the liquid phase, continuously stirring, adding a suspending agent, stirring, adding aluminum glittering powder, dye and a mildew preventive, adjusting the pH, uniformly stirring, and adjusting the viscosity to obtain the glittering watercolor ink. The ink disclosed by the invention is not easy to generate dead precipitation and mildew, and can be used for writing smoothly.

The invention relates to the technical field of microorganisms, and particularly discloses application of acetobacter orientalis T1-1 in preparation of glycyrrhetinic acid. The invention discloses a high-yield strain of glycyrrhetinic acid, namely acetobacter orientalis T1-1, and the yield of the glycyrrhetinic acid can reach 1.62%-2.09% after the glycyrrhiza is fermented by the acetobacter orientalis T1-1. Compared with fermentation of a control strain, the yield of a target product can be increased by 67%-386%. On the basis, the invention provides the preparation method of the glycyrrhetinic acid, the preparation method has the advantages of short fermentation period, high target product yield, low energy consumption, mild preparation conditions and easiness in control, and can be used for green, efficient and industrial production of the glycyrrhetinic acid, and the prepared glycyrrhetinic acid can be further applied to the fields of foods, medicines, daily chemicals and the like.

The application belongs to the technical field of bioengineering, and discloses a gene engineering bacterium of acetobacter pasteurii with high temperature resistance, a construction method and application thereof. Acetobacter pasteurianus The gene engineering bacterium is constructed by using the acetobacter pasteurii (ATCC 10137) as a starting strain and knocking out the transposase gene in the genome of the acetobacter pasteurii (ATCC 10137) by a homologous recombination method. TnsR The gene engineering bacterium with high temperature resistance is obtained. TnsR The deletion of the gene is beneficial to maintaining the stability of the genome, so that the strain can maintain better growth and metabolic capacity under high-temperature pressure. Experimental results show that the biomass, survival rate and acetic acid yield of the gene engineering strain under the condition of 40 DEG C high temperature are significantly better than those of the wild-type strain. When the gene engineering strain is applied to traditional solid-state food vinegar brewing, the yield of organic acids such as acetic acid is significantly improved, the content of ester flavor substances is greatly improved, and the flavor quality of food vinegar is effectively improved. The application provides an effective technical means for solving the problem that high temperature in summer leads to abnormal fermentation and yield reduction of food vinegar.

The invention relates to the technical field of strain breeding, in particular to acetobacter xylinum and application thereof. According to the invention, after ARTP mutagenesis treatment and screening, domestication is carried out through domestication culture media with different xylose concentrations, so that the acetobacter xylosus capable of efficiently utilizing xylose is obtained. The strain is classified and named as acetobacter xylinus, the strain number is P2-A1, the strain is preserved in the China General Microbiological Culture Collection Center (CGMCC) on December 4, 2024, and the preservation number is CGMCC No.32895. The invention further discloses a preparation method of the acetobacter xylinus strain. The acetobacter xylosus can efficiently utilize xylose to ferment and produce bacterial cellulose, and the utilization efficiency of xylose is improved. Compared with the original strain, the original strain hardly consumes xylose, and the bacterial cellulose yield of the acetobacter xylosus P2-A1 is increased by 93.59%.

The invention relates to application of compound bacteria in reducing the content of reducing sugar in apple juice and a product, and belongs to the field of food fermention.The compound bacteria are composed of a triple compound strain and a single strain, and an application method comprises first-stage fermentation and second-stage fermentation, the first-stage fermentation comprises the following steps: transferring apple juice with the sugar content mass ratio of 5-20% into a container, adding a triple composite strain, and carrying out sealed fermentation at 25-35 DEG C for 1-5 days to obtain a first-stage fermentation solution; the second-stage fermentation comprises the following steps: adding single strain acetobacter aceti into the first-stage fermentation liquor, and carrying out second-stage fermentation for 20-25 days to obtain final fermentation liquor; filtering and sterilizing to obtain low-sugar apple juice; according to the method, the mass ratio of reducing sugar in the apple juice can be reduced by 95% or above.

This invention discloses a method for preparing rum with high total ester content. The method includes the following steps: pretreating molasses; preparing a first fermentation medium using the pretreated molasses; expanding the culture of fissile yeast seed liquid in the first fermentation medium to obtain fissile yeast fermentation broth; continuously adding the pretreated molasses to the fissile yeast fermentation broth, culturing to obtain a fermentation product, wherein the residual sugar content of the fermentation product is controlled at 0.5-2%; preparing a second fermentation medium using the pretreated molasses; inoculating the fermentation bacteria into the second fermentation medium, culturing to obtain a fermentation broth; the fermentation bacteria include at least one of Clostridium acetic acid and Acetobacter pasteurella; adding the fermentation broth to the fermentation product, culturing to obtain a mash; continuously distilling the mash, using a kettle heating method for three-part distillation, mixing the second fraction with oak shavings, and aging; obtaining the base spirit, which is then blended to obtain rum with high total ester content. This method can produce mash with high alcohol content and high ester content in a short time.

The invention provides a composition containing acetobacter saxatilis and pantoea azototrophicus and application of the composition. The composition provided by the invention comprises acetobacter sativus or progeny thereof and pantoea azototrichum or progeny thereof; the registration number of the acetobacter breviscapus in the China General Microbiological Culture Collection Center (CGMCC) is CGMCC No.36149; the registration number of the nitrogen-fixing pantoea in the China General Microbiological Culture Collection Center (CGMCC) is CGMCC No.36150. The invention further discloses a preparation method of the nitrogen-fixing pantoea. The acetobacter sativus and the nitrogen-fixing pantoea or the composition of the acetobacter sativus and the nitrogen-fixing pantoea can be used for reducing emission of nitrogen-containing gas in the livestock breeding process and the livestock manure (normal state and composting) treatment process, and has a good application prospect.

The present invention discloses a method for hydrolyzing and coupling soapstock by biological method to jointly produce fatty acids and biogas, which comprises the following steps: Step 1: Mix materials, control the temperature and carry out aerobic fermentation. The materials include soapstock, acetic acid bacteria, methanobacterium and water. During the acidification of soap, the hydrolysis of oil by lipase is coupled to generate crude fatty acids. The water layer rich in organic matter is discharged into fermentation tank B, and the oil layer (crude fatty acids) is discharged into tank C. Step 2: Anaerobic fermentation is carried out in fermentation tank B. After the gas production is completed, the temperature is raised to denature and inactivate the microorganisms. Then, centrifugation is carried out to separate the solid phase, oil phase and water phase. The solid phase and water phase are used for ecological organic fertilizer, and the oil phase is merged into the crude fatty acid tank C. Step 3: After the crude fatty acids are heated, dehydrated and dried, rectification is carried out to obtain the finished fatty acids. The operation of the present invention is simple, the cost is low, it is environmentally friendly, and fatty acids, biogas and ecological organic fertilizer are obtained respectively, further improving the production benefit. The production process is safe and reliable and is convenient for popularization and application.

The invention discloses a hermetia illucens breeding feed based on waste mushroom sticks. The hermetia illucens breeding feed comprises mushroom stick residues and eutrophic balls which are uniformly dispersed, 0.2-2% by mass of a compound microbial agent is uniformly added into the mushroom stick residues; the compound microbial agent is prepared from 25 to 35 parts of bacillus subtilis, 15 to 25 parts of lactic acid bacteria, 13 to 17 parts of actinomycetes, 13 to 17 parts of saccharomycetes, 8 to 12 parts of photosynthetic bacteria and 8 to 12 parts of bacillus aceticus; the eutrophic ball comprises a ball core and a ball shell, the ball core comprises mushroom stick powder, bacillus aceticus, bacillus subtilis, a microelement additive, pregelatinized starch and carboxymethyl cellulose which are uniformly mixed, and the ball shell comprises starch and brown sugar which are uniformly mixed. The invention further discloses a preparation method of the hermetia illucens culture based on the waste mushroom sticks, a hermetia illucens culture method and a fecula treatment method. The black soldier fly breeding feed based on the waste mushroom sticks is high in biotransformation rate; the closed-loop ecological cycle of the mushroom stick residues, the insect protein and the organic fertilizer is realized.

The invention provides calcium modified bacterial cellulose and application thereof in low-salt water livestock meat paste, and belongs to the technical field of food processing. The calcium modified bacterial cellulose is obtained by taking calcium gluconate as a carbon source and carrying out in-situ fermentation on gluconacetobacter xylinum in a liquid culture medium through an ion coordination method. According to the calcium-modified bacterial cellulose disclosed by the invention, on the premise of maintaining the flavor and texture of the water livestock meat paste product, the salt addition amount and content of the water livestock meat paste product can be reduced, and the salty taste perception and the overall quality of the water livestock meat paste can be improved. The invention provides a new strategy for developing healthier and low-salt meat paste products produced by water livestock.

An air pressure control system in a fermentation tank for table vinegar production comprises an air pressure control box, an air pump is arranged at the top in the air pressure control box, an air outlet of the air pump is communicated with the top of the fermentation tank through a pipeline, a through groove is formed in the bottom of the air pressure control box, and the top of the fermentation tank is communicated with the top of a vinegar liquid storage tank through a pipeline. A vent electronic valve is arranged on a communicating pipeline between the top of the fermentation tank and the bottom of the vinegar liquid storage tank, the bottom of the fermentation tank is communicated with one end of a discharge pipe, the other end of the discharge pipe is communicated with the top of the vinegar liquid storage tank, a discharge electronic pump and a discharge electronic valve are arranged on the discharge pipe, and the discharge electronic pump is communicated with the discharge electronic valve. An electronic barometer communicated with the interior of the fermentation tank is arranged on the fermentation tank, and a control panel is arranged on the air pressure control box. The air pressure in the fermentation tank can be automatically controlled, so that the oxygen content in the fermentation tank is ensured, manual treatment is not needed, the operation is simple, and the growth efficiency and production safety of acetobacter aceti in the fermentation tank can be ensured.

The invention discloses acetobacter Indonesii with low fusel oil yield and an application of the acetobacter Indonesii. The strain of the Acetobacter indicum X3 is preserved in the China Center for Type Culture Collection (CCTCC), the preservation date is July 15, 2025, and the preservation number is CCTCC NO.M20251613. The strain of the Acetobacter indicum X3 has the advantages that the strain of the Acetobacter indicum X3 is preserved in the China Center for Type Culture Collection (CCTCC), and the preservation number is CCTCC NO.M20251613; the acetobacter strain is obtained by separating and purifying mash of the rice-flavor liquor, fusel oil in the rice-flavor liquor can be reduced by 14.2%, the acetobacter seed solution and distiller's yeast of the rice-flavor liquor are prepared into mixed yeast to be applied to brewing of rice-flavor raw liquor, the total acid content in a produced liquor body reaches 0.35 g / L and is increased by 66.7% compared with that of a production control group, and the production cost is reduced. The total ester content reaches 0.35 g / L and is improved by 47.8% compared with that of a control group, and the flavor purity and the comprehensive score of a wine body are optimal through sensory evaluation.

The invention relates to acetobacter breviscapus GJ1-4, a microbial agent of the acetobacter breviscapus GJ1-4 and application of the acetobacter breviscapus GJ1-4 in promoting acidification of kitchen waste and biogas production, and belongs to the technical field of microorganisms The Acetobacter cereus GJ1-4 is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC No.32450, the preservation date is October 31, 2024, and the address of the preservation institution is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing. The invention further provides application of the acetobacter breviscapus GJ1-4 in promotion of acidification and biogas production of kitchen waste. The acetobacter breviscapus GJ1-4 provided by the invention can efficiently grow in a pH range of 4.0-9.0, has the characteristics of efficient acid production, high ammonia nitrogen resistance and good culture, and can effectively promote acidification of kitchen waste and production of biogas.

A mixture includes a nickel-containing ore and / or concentrate thereof and an extraction composition including a fermentation broth obtained from an Aspergillus species (spp.), Acetobacter spp., Bacillus spp., Propionibacterium spp., Corynebacterium spp., Rhizopus spp., Clostridium spp., Fusobacterium spp., Pseudomonas spp., Bifidobacterium spp., Saccharomyces spp., Enterobacter spp., Escherichia spp., among others. The extraction composition is configured to selectively solubilize one or more components, such as a magnesium component from the nickel-containing ore and / or concentrate thereof. A method for extracting a metal from a nickel-containing ore and / or concentrate includes selectively solubilizing a magnesium component from the nickel-containing ore and / or concentrate thereof into an extraction composition including the fermentation broth. The method can include extracting a magnesium component from a nickel-containing ore and / or concentrate thereof into an extraction composition, separating the nickel-containing ore and / or concentrate thereof from an extracted magnesium component and broth, separating the broth from the extracted magnesium component, and repeating the extracting. The extracted magnesium component has a purity in a range from 10% to 90%.

The invention discloses Acetobacter cacteus and application thereof, a fermentation method of vinegar and a flavor modifier, and relates to the technical field of microorganisms, the Acetobacter cacteus is named as Acetobacter cacteus JJ-1, the preservation number of the Acetobacter cacteus JJ-1 is CCTCCNO: M 20242128, the preservation time is September 30, 2024, and the preservation number of the Acetobacter cacteus JJ-1 is CCTCCNO: M 20242128. The preservation address is China Center for Type Culture Collection. The acetobacter cocoa JJ-1 has higher acid production capacity in the presence of exogenous selenium, and compared with vinegar without selenium, the fermented vinegar has better flavor.

The present invention relates to a novel strain of Acetobacter pasterianus and a method for producing rapid fermented vinegar using the same. More specifically, the invention relates to an Acetobacter pasterianus S25 strain (accession number: KFCC11970P) having 16S ribosomal DNA containing the nucleotide sequence indicated by SEQ ID NO. 1, capable of rapid acetic acid fermentation, thereby shortening the acetic acid fermentation period while exhibiting excellent flavor, and a method for producing rapid vinegar with excellent flavor using the same.

The present application belongs to the field of microorganism and fermentation technology, and discloses a method for synergistically fermenting ginseng powder by bacteria and enzymes, and fructobacillus, ginseng spice and application. The method comprises the following steps: (1) preparing ginseng powder liquid medium; (2) inoculating fructobacillus and cellulase, and liquid fermentation for 24-36 hours; (3) inoculating amylase, and continuing fermentation for 96-120 hours; (4) after the fermentation is completed, supplementing ethanol to a final volume concentration of 45%-55%, stirring at room temperature for 24 hours, standing and settling, and filtering to obtain supernatant, which is ginseng spice. Through the synergistic fermentation of bacteria and enzymes and the specific microbial fermentation metabolism control technology, the ginseng spice obtained by the present application can significantly reduce the earthy smell of traditional ginseng spice, has typical aroma characteristics, has strong absorbability, and effectively improves the product quality of ginseng spice series cigarettes.