474 results about "Bacillus polyfermenticus" patented technology

The invention discloses a Weissella sinus strain for improving the fermentation flavor of American ginseng and application of the Weissella sinus strain. According to the present invention, through the comprehensive evaluation of a variety of lactic acid bacteria, including the acid production capacity, the chroma regulation and the flavor characteristic analysis, the optimal strain for the American ginseng fermentation is finally screened, and the strain shows the significant flavor regulation advantage. On one hand, characteristic earthy smell substances of American ginseng can be completely degraded, and the bad flavor of the raw materials is effectively improved; on the other hand, a compound with a fruity flavor characteristic can be specifically generated, and a fermentation product is endowed with a remarkable fragrant and sweet flavor. In addition, the strain disclosed by the invention maintains proper acid production capacity and chroma stability, and the flavor quality is remarkably improved on the premise of ensuring the fermentation efficiency. Due to the characteristics, the strain becomes an ideal fermentation strain for developing a high-quality fermented American ginseng product.

The invention discloses a selenium-rich bimorphic actinidia arguta enzyme as well as a preparation method and application thereof, and belongs to the technical field of microbial fermentation. The preparation method of the selenium-rich bimorphic actinidia arguta enzyme comprises the following steps: (1) performing selenium-rich culture on saussurea involucrata to obtain selenium-rich saussurea involucrata; (2) pulping the whole actinidia arguta fruits, performing enzymolysis, inoculating the selenium-rich saussurea involucrata bacteria, and performing fermentation culture; and (3) after the fermentation culture is finished, carrying out solid-liquid separation to obtain the selenium-rich solid-state actinidia arguta enzyme and the selenium-rich liquid-state actinidia arguta enzyme. The selenium-rich saussurea involucrata is used for whole-fruit fermentation of actinidia arguta for the first time, a bimorphic enzyme product is developed, the selenium content in the actinidia arguta enzyme is increased, and the enzyme flavor and antioxidant activity are enhanced. Compared with the prior art, the method has originality in the aspects of fermentation strains, culture modes, product forms and biological functions, and a whole set of processing technology which is simple in process and high in operability is provided.

The invention provides an efficient fermentation production method and application of acid type sophorolipid, and the production method comprises the following steps: (1) in a growth stage, adding a composite nitrogen source and growth factors into a basic culture medium to promote the growth of zymophyte and realize high-density fermentation, the zymophyte being candida utilis subjected to genetic engineering modification; (2) in the product synthesis stage, mixed syrup and vegetable oil are used as carbon sources, and the concentration of glucose in a fermentation tank is maintained at 1-5g / L and the concentration of residual oil is maintained at 1-5g / L by regulating and controlling the material supplementing rate. The fermentation production method provided by the invention solves the problems of slow thallus growth, long fermentation period, low production intensity, uncontrollable product composition, more byproducts, peculiar smell of fermentation tail gas and the like in the existing sophorolipid production process, and has industrial application value.

The invention discloses an Akkermansia massiliensis LTA21F2 strain and an application of the Akkermansia massiliensis LTA21F2 strain, and belongs to the technical field of microorganisms. The strain is preserved in the Guangdong Microbial Culture Collection Center on December 04, 2022, the preservation address is the 5th floor of the building 59, No.100 Courtyard, Xianlie Middle Road, Guangzhou, and the preservation number is GDMCC No: 63035. The Akkermansia massiliensis anaerobic fermentation bacterial liquid provided by the invention is high in viable count and strong in oxygen tolerance, still has a survival rate of more than 90% after being exposed in air for 12 hours, the viable count in a sample is increased by 25.26% after being stressed by 1.5 M H2O2 for 2 hours, and the strain has a section of characteristic sequence which can be used as a specific molecular marker, and has the characteristics of high growth rate, high viable count and the like when being subjected to enlarged culture in a 200L fermentation tank.

The invention relates to a composition containing fermented peony seed oil and application of the composition in skin care products, and belongs to the technical field of skin care products, the composition is composed of 20-25 wt% of fermented peony seed oil, 2-4.5 wt% of a saw palmetto fruit extract, 4 wt% of a bitter melon fruit extract, 1.5 wt% of an abelmoschus esculentus fruit extract, 0.5-1 wt% of an emulsifier and the balance of deionized water, the fermented peony seed oil is prepared through a fermentation process, and fermentation strains comprise lactobacillus plantarum and bacillus licheniformis. The composition containing fermented peony seed oil provided by the invention does not contain chemical components with high irritation or high skin burden, is mild and non-irritant, can effectively improve eczema, has a remarkable effect, and is suitable for being used as an active component to be added into a skin care product.

The invention provides a fermentation composition with an anti-oxidation effect as well as a preparation method and application of the fermentation composition. The composition is prepared by taking ginseng powder, corn stigma and chrysanthemum as fermentation raw materials and saccharomyces cerevisiae and bacillus subtilis as fermentation strains. Experiments show that the fermentation composition has a remarkable anti-oxidation effect, also has typical aroma characteristics, and is full and harmonious in aroma.

The invention discloses a high-efficiency aerobic fermentation corncob-based biological conditioner and application thereof. Aiming at the common problems of unstable carrier effect, poor environmental adaptability, easiness in inactivation of the microbial inoculum, difficulty in continuously exerting efficacy and the like existing in the existing composting microbial inoculum, the agricultural waste corncob with a porous structure and excellent water-retaining and fertilizer-retaining natural characteristics is pretreated and modified; and the immobilized carrier of the aerobic fermentation inoculant with high activity and high stability is constructed. The carrier matrix can be used for efficiently loading and remarkably improving the expanding culture core aerobic fermentation functional flora to prepare a solid biological conditioner. The corncob-based biological conditioner is applied to the composting process of organic solid wastes, promotes the humification process of organic materials, shortens the composting period, improves the fermentation efficiency of the materials, and effectively improves the resource utilization level of the organic solid wastes.

The invention discloses marasmius albus DCY6478 as well as a culture medium and application thereof, and belongs to the technical field of microorganisms. The invention discloses a Marasmilla sp. DCY6478 strain, and the preservation number of the Marasmilla sp. DCY6478 strain is GDMCC (China General Microbiological Culture Collection Center) No.65883. The Marasmilla sp. Experimental verification results show that the culture medium formula most suitable for growth of the white marasmius is prepared from the following components in percentage by weight: 40% of apple sawdust, 36% of corncob, 14% of cottonseed hull, 1% of lime and 1% of gypsum; the fermentation liquor is verified to have an inhibition effect on a plurality of pathogenic bacteria; the DPPH free radical scavenging capacity of the fermented hyphae is verified, the superoxide dismutase activity and catalase activity are both higher than those of sporocarp, and the fermented hyphae can be used as a natural antioxidant source; it is verified that fermented hyphae or sporocarp of the strain have the capacity of secreting amino acid and polysaccharide and producing crude protein, and a new raw material selection is provided for the industries of food, medicine and the like.

The invention belongs to the technical field of food processing, and particularly relates to fermented beef jerky and a preparation method thereof. The preparation method of the beef jerky comprises the following steps: (1) removing fascia and fat from fresh cattle hind leg meat, washing with clear water, and cutting into meat slices; (2) adding table salt, glucose, white granulated sugar and sodium nitrite into the sliced meat, uniformly mixing, adding a fermentation inoculant which comprises staphylococcus calcaratus, pediococcus acidilactici, bifidobacterium bifidum and Witzia ciliaris, and fermenting; and (3) after fermentation, drying and cooling to obtain the fermented beef jerky. Specific strains are selected to form a fermentation inoculant for fermentation, and the prepared fermented beef jerky is high in free amino acid and soluble peptide content, low in nitrite residual quantity, uniform red brown in color and slightly bright in surface, and belongs to high-quality beef jerky.

The invention provides zero-fat low-sugar yoghourt and a preparation method thereof, the zero-fat low-sugar yoghourt comprises the following raw materials: skimmed milk, a fermentation inoculant, a sweetening agent and a protein product, the fat content of the skimmed milk is less than or equal to 0.3 g / 100mL, the protein content of the skimmed milk is greater than or equal to 6.0 g / 100mL, and the lactose content of the skimmed milk is less than or equal to 4.0 g / 100mL; the fermentation inoculant is composed of pichia kudriavzevii, lactobacillus helveticus and streptococcus thermophilus, and the ratio of the three strains is 2: 1: 5. According to the zero-fat low-sugar yoghourt disclosed by the invention, through selection of specific strains, good stability can be realized under the condition that a thickening agent and a stabilizing agent are not added, the product can be endowed with better oxidation resistance, human body metabolism improving efficacy and immunity regulating efficacy, and a green, clean and healthy yoghourt product is really obtained.

The invention discloses a method for preparing acid sophorolipid, and belongs to the technical field of biological fermentation. According to the method, candida is used as a fermentation strain, a composite carbon source culture medium containing a water-soluble carbon source and an oil-soluble carbon source is adopted, and the content of residual oil is monitored in real time in the fermentation process; when the residual oil content exceeds a threshold value of 5g / L, the emulsifying agent of 0.1 g / L-0. 5g / L is supplemented, and the stirring rotating speed is increased by 20-50rpm, so that the emulsification of an oil phase and the utilization of the thalli on the oil-soluble carbon source are promoted. By accurately controlling the residual oil content in the fermentation process, the proportion of the acidic sophorolipid and the carbon source conversion rate are remarkably increased, the proportion of the acidic sophorolipid is increased to 60% from 30% of a traditional process, the carbon source conversion rate is increased to 65% from 40%, the problems that the increasing means of the proportion of the acidic sophorolipid is single, and the carbon source is wasted are effectively solved, and the method is suitable for industrial production. The method has the advantages of simple process, low cost, environmental protection and the like.

The invention relates to the field of microorganisms and discloses saccharomyces cerevisiae, a fermentation inoculant containing the saccharomyces cerevisiae, application of the saccharomyces cerevisiae and the fermentation inoculant and a method for producing fruit wine. The preservation number of the saccharomyces cerevisiae (Saccharomyces sp.) is CGMCC (China General Microbiological Culture Collection Center) No. 31571. The fermentation inoculant provided by the invention contains the saccharomyces cerevisiae. The invention also provides application of the saccharomyces cerevisiae and the microbial inoculum in production of ethanol and / or wine products. The saccharomyces cerevisiae strain provided by the invention has the properties of high glucose resistance, ethanol resistance, high salt resistance, high acid resistance, sulfur dioxide resistance and the like, has relatively strong ethanol production capacity and ester production capacity, can increase different flavors formed in a wine brewing process, and provides abundant strain resources for improving the flavor of sparkling wine.

The invention belongs to the field of fermentation strain screening, and discloses a high-throughput fermentation strain screening method based on artificial intelligence. Comprising the following steps: acquiring standard strains from a public strain preservation center, separating potential functional strains from edible mushroom residues, utilizing a high-throughput fermentation platform, setting different fermentation conditions, monitoring physical parameters in real time through an online sensor, constructing an artificial intelligence model, and quickly screening out dominant strains through real-time data acquisition and model prediction. Designing an optimization experiment scheme by using an AI performance prediction model, and according to a high-throughput experiment result, carrying out multi-round iterative optimization to obtain a single strain or a composite flora with optimal performance; according to the method, actual edible fungus residues are used as fermentation substrates, multiple groups of repeated experiments are set, strains or composite flora with the optimal performance are screened out, and intelligent screening of high-throughput fermentation strains is achieved.

The invention relates to a beauty and skin care enzyme and a preparation method thereof. According to the invention, fruits and traditional Chinese medicines are used as main fermentation raw materials, the fruits and the traditional Chinese medicines are crushed and mixed with fermentation strains, and active substances in each raw material are effectively retained through two-stage fermentation, filtration separation and freeze-drying treatment, SOD and sea buckthorn flavone contained in sea buckthorn fruits have the skin care effects of resisting oxidation and promoting collagen synthesis, and the sea buckthorn fruits have the skin care effects of resisting oxidation and promoting collagen synthesis. Salidroside contained in the rhodiola rosea has the skin care effects of resisting light aging and fatigue, astragalus polysaccharide and astragaloside contained in the astragalus membranaceus can repair a barrier and enhance immunity, ophiopogonin and polysaccharide contained in the radix ophiopogonis have the effects of preserving moisture and resisting saccharification, and hesperidin and nobiletin contained in the pericarpium citri reticulatae have the effects of resisting oxidation and adjusting grease secretion. The obtained compound enzyme has the effects of resisting oxidation, resisting inflammation and preserving moisture, has activity, stability and transdermal efficiency, and can be used in skin care products such as anti-oxidation essence, repair masks, late-up cream and the like.

The invention discloses a straw decomposition bacterium, a fermentation bacterium agent and a straw stacking decomposition method, and relates to the technical field of biology. The invention relates to a straw decomposing bacterium (Ureibacillus masliensis) UM-1, which is preserved in the China Center for Type Culture Collection, the preservation number is CCTCC NO: M20242457, the preservation date is November 7, 2024, and the strain has a 16S rDNA sequence as shown in SEQ ID NO: 1. The invention also discloses a fermentation bacterial agent containing the straw decomposition bacteria (Ureibacillus masliensis) UM-1, and a straw stacking decomposition method. The invention also discloses a fermentation bacterial agent containing the straw decomposition bacteria (Ureibacillus masliensis) UM-1. The straw decomposing bacterium (Ureibacillus massiliensis) UM-1 provided by the invention has the capability of degrading cellulose, hemicellulose and lignin, and has a good decomposing effect on rice straws and wheat straws.

The invention relates to a herbal acne-cleaning composition as well as a preparation method and application thereof, and belongs to the technical field of cosmetics. The invention relates to a herbal acne-removing composition. The composition comprises the following components in parts by weight: 1-3 parts of honeysuckle flower extract, 4-6 parts of mangnolia officinalis bark extract, 0.1-1 part of dandelion extract and 2-5 parts of fermentation extract, a fermentation strain used in the fermentation extract is lactobacillus fermentum, the preservation number of the lactobacillus fermentum is CGMCC No.21381, and fermentation substrate powder comprises amur cork powder and white willow bark powder. The herbal acne-removing composition disclosed by the invention has a remarkable acne-removing effect, and is mild and non-irritant.

The invention belongs to the technical field of microorganisms, and discloses saline-alkaline tolerant halomonas and application thereof. The Franzmannia qiaohouensis is separated from rhizosphere soil of broom corn millet in saline-alkali soil, the strain number is STM-122, the preservation number is CGMCC No.36349, the classification status is clear through 16S rRNA (ribosomal ribonucleic acid) gene sequence identification and phylogenetic analysis, and the Franzmannia qiaohouensis has the functions of dissolving phosphorus and producing EPS (expandable polystyrene), auxin and siderophore. Through bacterial suspension seed soaking treatment, the germination potential and germination rate of broom corn millet seeds under saline-alkali stress can be remarkably improved, and the indexes of seedling root length, plant height and the like are promoted to be improved; meanwhile, the invention provides a complete preparation method of the bacterial strain fermented bacterial fertilizer, and the viable count of the obtained fermented bacterial fertilizer is greater than or equal to 1 * 10 < 8 > CFU / g. The method can enrich salt-tolerant microbial resources, and provides technical support for planting broom corn millet and other crops in saline-alkali soil.

The invention relates to the technical field of microorganisms, and particularly discloses a metagen as well as a preparation method and anti-inflammatory application thereof. The method for preparing the metagen comprises the following steps: (1) carrying out solid-state fermentation by taking bacillus amyloliquefaciens CAU X1 with the preservation number of CGMCC (China General Microbiological Culture Collection Center) No.26769 and bacillus coagulans B2 with the preservation number of CGMCC No.26767 as zymophyte together, so as to obtain a fermentation product, wherein the bacillus amyloliquefaciens CAU X1 and the bacillus coagulans B2 are used as zymophyte together, and the bacillus amyloliquefaciens CAU X1 and the bacillus coagulans B2 are used as zymophyte together; (2) extracting the fermentation product by using a water-soluble solvent, centrifuging to take supernatant, and freeze-drying to obtain powder; or extracting the fermentation product by using an organic solvent, centrifuging and taking the supernatant, and volatilizing the organic solvent to obtain the extract. The metagen provided by the invention has anti-inflammatory activity, can improve bacterial enteritis, can play roles in resisting inflammation, regulating body immunity, optimizing intestinal flora structure and improving bacterial enteritis, can be used for medicines or feed additives, and has a good application prospect.

The invention discloses a preparation method and application of recombinant human-like collagen. The recombinant human-like collagen is fusion protein of collagen and elastin. The preparation method comprises the following steps: taking constructed escherichia coli engineering bacteria, inducing expression of human-like collagen through high-density fermentation, performing high-pressure homogeneous cell disruption after tubular centrifugal collection of fermented thalli, performing acid regulation, flocculating and settling of cell debris and host protein, and controlling pH and conductivity of feed liquid to obtain the human-like collagen. Through ion exchange chromatography purification and ultrafiltration concentration replacement, a human-like collagen stock solution with the liquid phase purity of more than 98% is obtained, and the total yield is more than 75%. Through cell biological activity detection and analysis, the purified human-like collagen has remarkable biological activity of promoting cell migration and adhesion. The whole preparation process developed by the invention is simple and convenient in process, high in yield, easy to amplify and suitable for industrial production of the recombinant human-like collagen, and the prepared protein raw material can be widely applied to the fields of medical beauty and biological medicine.

The invention discloses double-milk-source fermented milk of double-peak camel milk and brown milk and a preparation method of the double-milk-source fermented milk, and the preparation method comprises the following steps: mixing raw materials: mixing the double-peak camel milk and the brown milk according to a mass ratio to obtain double-milk-source mixed milk; pretreatment: sequentially carrying out homogenization treatment and heat treatment on the double-milk-source mixed milk; strain inoculation: inoculating the pretreated double-milk-source mixed milk with a fermentation strain, wherein the fermentation strain comprises a core strain and an auxiliary strain; the core strains are lactobacillus and streptococcus thermophilus which have tolerance to antibacterial components of the camel milk, and the core strains contain strains capable of producing exopolysaccharides. Through scientific matching of lactobacillus, streptococcus thermophilus and specific auxiliary strains which have tolerance to antibacterial components of the camel milk, the inhibition effect of natural antibacterial components such as lysozyme and lactoferrin in the camel milk on conventional strains is successfully overcome.

The invention discloses a preparation process of metabiotics and functional application of the metabiotics for relieving constipation, and relates to the technical field of microorganisms. The invention provides a preparation method of a bifidobacterium animalis subsp. Lactis LIHUO 01-containing metagen, which comprises the following steps: separately inoculating bifidobacterium animalis subsp. Lactis LIHUO 01 or compounding with probiotics to inoculate in a fermentation culture medium for culturing to obtain a fermentation bacteria solution, and carrying out thermal inactivation to obtain the bifidobacterium animalis subsp. Lactis LIHUO 01-containing metagen. The fermentation medium comprises skimmed milk, soybean meal and water, the mass ratio of the skimmed milk to the soybean meal to the water is (5-30): (1-25): (78-90), and the prepared bifidobacterium animalis subsp. Lactis LISUO 01 metabolite can significantly improve the content of tryptophan metabolites, can effectively relieve constipation and has a wide application prospect.

The invention relates to the technical field of microorganisms, in particular to bacillus licheniformis, a fermentation agent containing the bacillus licheniformis, a preparation method of the fermentation agent, organic fertilizer, a preparation method of the organic fertilizer and a planting method of crops. The preservation number of the bacillus licheniformis is GDMCC No: 66520. The strain is only added as a zymophyte to compost the agaricus bisporus residues, so that the quick decomposition of the agaricus bisporus residues can be realized. And the decomposed product has a good promotion effect on crops, especially tomatoes.

The invention discloses saccharomyces cerevisiae NJ-LK12 as well as a fermentation inoculant and application thereof. The preservation number of the saccharomyces cerevisiae NJ-LK12 is CCTCC (China Center For Type Culture Collection) NO: M20241342. The fermentation inoculant comprises a saccharomyces cerevisiae NJ-LK12 seed solution or a combination of the saccharomyces cerevisiae NJ-LK12 seed solution and a lactobacillus plantarum ZR-LK11 seed solution; wherein the preservation number of the lactobacillus plantarum ZR-LK11 is CCTCC (China Center For Type Culture Collection) NO: M20241342. Saccharomyces cerevisiae NJ-LK12 is obtained through screening, meanwhile, a liquid-solid combined deep fermentation technology is fully utilized, a fermentation microbial inoculum composed of composite saccharomyces cerevisiae and / or lactobacillus plantarum and a bacillus subtilis KC seed solution is used for fermentation of flaxseeds, production raw materials are sufficient, the production process is simple, the production cost is low, and storage and use are convenient.

The invention relates to the technical field of feed production, in particular to an azolla filliculoidas fresh leaf fermented feed which comprises the following components in parts by weight: 70 parts of azolla filliculoidas silage sections, 20 parts of a composite carrier matrix, 5 parts of a natural anti-caking and toxin adsorbent, 7 parts of functional liquid, 10 parts of an energy and flavor synergist and 2 parts of zymophyte. Functional liquid is converted into chitosan oligosaccharide through ultrasonic treatment, and long-chain chitosan is broken into high-solubility chitosan oligosaccharide; through cold plasma activation, an active functional group is grafted on the surface of a chitosan oligosaccharide molecule to form a nanoscale compact protective film; the protective film can inhibit pollution of aerobic mould and saccharomycetes after unsealing, prolong the shelf life of the feed, reduce loss of volatile fatty acids and flavor substances generated by fermentation, and maintain the nutritional value and palatability of the feed.

The invention relates to the technical field of skin care product raw materials, and particularly discloses an antibacterial and antipruritic plant composition as well as a preparation method and application thereof. The preparation method of the antibacterial and antipruritic plant composition comprises the following steps: step 1) putting sanguisorba officinalis roots, pericarpium zanthoxyli fruits, gentiana australis, dracocephalum dracocephalum, artemisia capillaris and dogwood into water, and putting zymophyte for fermentation to obtain a fermented compound; (2) adding an ethanol water solution into the fermentation compound, heating, extracting, filtering, and taking filtrate to obtain a compound extracting solution; 3, the composite extracting solution is concentrated and dried, and the bacteriostatic and antipruritic plant composition is obtained, zymophyte is a compound of Weissella herlentini and zymozygous yeast.The bacteriostatic and antipruritic plant composition has the advantage that the bacteriostatic and antipruritic effect is further improved on the premise that low irritation is kept.

The invention belongs to the technical field of microorganisms, and particularly relates to a pseudomonas TaRb6 capable of preventing diseases and promoting growth and application of the pseudomonas TaRb6. The TaRb6 strain provided by the invention belongs to a potential new species of pseudomonas, and the preservation number of the TaRb6 strain is CGMCC (China General Microbiological Culture Collection Center) No.36131. The strain TaRb6 and a fermentation inoculant prepared from the strain TaRb6 have good disease prevention and growth promotion functions on plants; the bacterial inhibition rate of sterile fermentation liquor of the strain TaRb6 on fusarium pseudograminearum reaches 46.54%-62.82%, and the bacterial colony diameter of the fusarium pseudograminearum can be reduced by 61.38% through metabolized volatile organic compounds of the strain TaRb6. After the TaRb6 bacterial suspension is used for seed soaking treatment of wheat, the incidence rate of wheat basal stem rot can be remarkably reduced, and the growth vigor of wheat can be promoted. In addition, the strain TaRb6 has broad-spectrum antibacterial ability, and the antibacterial rate of the strain TaRb6 on pathogenic bacteria of fusarium, botrytis cinerea, apical cyst and xanthomonas reaches 47.23%-67.02%.

The invention discloses a preparation method and application of a recombinant A-type botulinum toxin, and aims to industrially produce the recombinant A-type botulinum toxin by utilizing the preparation method of the recombinant A-type botulinum toxin provided by the invention. The method comprises the following steps: firstly, constructing genetically engineered bacteria capable of heterologously expressing a botulinum toxin A gene in host bacteria by virtue of a genetic engineering means, then accumulating recombinant botulinum toxin A in a strain by virtue of the genetically engineered bacteria through high-density fermentation, collecting fermented thalli, crushing and purifying to obtain the recombinant botulinum toxin A, and finally, preparing the recombinant botulinum toxin A by virtue of the recombinant botulinum toxin A. And adding an auxiliary poising agent and a protective agent to prepare a liquid agent or a freeze-drying agent to obtain the recombinant A-type botulinum toxin for injection. According to the technical scheme, the complete recombinant botulinum toxin A with the purity as high as 99.9% is obtained, the yield is as high as 7000000 U / L, and the complete recombinant botulinum toxin A has no obvious difference from natural botulinum toxin A in structure and function and can be applied to multiple fields such as medical treatment, medical beauty and military affairs.

The invention provides a fruit juice fermentation inoculant, fermented guava juice and a preparation method, and belongs to the technical field of fermented beverages. The invention provides a compound fermentation inoculant capable of fermenting fruit juice, the compound fermentation inoculant is composed of lactobacillus plantarum and lactobacillus fermentum, the fermentation inoculant is applied to fermentation of guava fruit juice, beta-glucosidase secreted in the fermentation process can hydrolyze combined polyphenol substances in guavas, and then the guava fruit juice is fermented. The antioxidant is converted into high-activity antioxidants such as quercetin and gallic acid in a free state, so that the content of free phenol is increased by about 2 times, and the scavenging rate of DPPH free radicals is increased by more than 40%. The fermentation is carried out in an oxygen-free environment, the retention rate of vitamin C can reach 80% or above, the low pH value at the fermentation end point and organic acid jointly inhibit pathogenic microorganisms, and the product stability is guaranteed. Therefore, the guava juice prepared from the compound fermentation inoculant maximally releases the natural nutritional potential of guavas.

The invention belongs to microbial fermentation, and particularly relates to rhizobium massa and application of rhizobium massa in preparation of selenium-rich beta-1, 3 / alpha-1, 3-glucan fermentation liquor. The preparation method comprises the following steps: inoculating rhizobium pustatae of which the Latin name is Rhizobium push and the preservation number is CGMCC (China General Microbiological Culture Collection Center) No.34553 into a sterile fermentation culture medium containing inorganic selenium, and carrying out aerated fermentation, thereby obtaining the selenium-enriched rhizobium pustatae. The method solves the problems that in the prior art, a fermentation strain is low in tolerance to selenium element, the capacity of converting inorganic selenium into organic selenium is weak, and the like, and has the advantages that the product yield and the fermentation liquor viscosity are high, and the selenium content in the selenium-rich beta-1, 3 / alpha-1, 3-glucan product is high.

The invention relates to the field of microbial fermentation food, and discloses application of lactobacillus plantarum, a prune fermentation product, a preparation method of the prune fermentation product and a prune fermentation strain. A strain of lactobacillus plantarum with better performance is obtained from the nature, the preservation number is CCTCC NO: M 20242280, and after the lactobacillus plantarum is used for fermenting the prune subjected to enzymolysis, compared with other fermentation strains and fermentation products without fermentation strains, the obtained fermentation product has the advantages that the fermentation yield is increased, and the yield is increased. The pancreatic lipase inhibition rate and the cholesterol micelle solubility inhibition rate are remarkably improved, and the compound shows extremely excellent activity of improving blood fat. The invention not only provides an effective, time-saving and energy-saving preparation process method of the prune fermented product, but also provides a wide foundation for further application of the prune.