• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A micro-organism of the Beggiatoa type is cultured with agitation under aerobic conditions in an aqueous nutrient medium and the biomass and/or the culture medium is collected. The micro-organism used may be obtained from baregine. The bacteriostatic substance produced may be used for skin massages or as an ingredient for a cosmetic product, for example for the skin.
    公开号:SU1090263A3
    申请号:SU792836784
    申请日:1979-10-31
    公开日:1984-04-30
    发明作者:Мэйард Франсуа；Шеферд Давид
    申请人:Сосьете Де Продюи Нестле С.А.(Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the microbial industry and concerns the production of biomass microorganism. with bacteriostatic activity. The purpose of the invention is to create a method for producing biomass of microorganisms of the Beggiatoa type, which has bacteriostatic activity. This goal is achieved by the fact that in the method of obtaining biomass of microorganisms of the Beggiatoa type, which has bacteriostatic activity, the cells of the microorganisms of the Beggiatoa strain NCIB 11418, NCIB 11419 NCIB 11420, NCIB 11421, NCIB 11422, NCIB 1G423, NCIB 11424 or NCIB 1J42 are homogenized, and they are used to make homogenized patterns. aerobic conditions at 16–24 hours at pH 6.6 in a liquid nutrient medium and biomass and / or culture liquid are collected. Microorganisms of the Beggiatoa type are preferably obtained from barrezhin. A sample of barrezh is placed on an agar-agar nutrient medium, holding the strain out of the strain. 6–16 hours at 5–50Ps, the section with the strands of the microorganism Beggiatoa, free from contamination, is separated, the area is placed on the same nutrient medium, incubated, separated and transplanted 2-3 times, eight strains deposited in The National Breeding Bacteria Collection (NCIB) in Aberdeen, Scotland, numbered NCIB 11418-11425. Agar-agar nutrient medium contains 1-4 g of yeast extract and 10-20 g of agar per 1 l of water. The method is carried out as follows. The culture of the microorganism Beggiatoa is homogenized and cultured in a liquid nutrient medium containing 1-4 g of yeast extract 0.1-0.3 g of calcium chloride and 0.21 g of sodium or ammonium acetate per 1 l of water. To preserve the culture in the culture process on Wednesday. You can add 5-20 IU / mg catalase. Cultivation is carried out at t 5-36 h at pH 6-8. Preferably, the cultivation is carried out for 8-10 hours at 30-40 ° C and neutral pH. The obtained target product can be lyophilized. 1. Strain excretion, Example, taken from the National Fresh Alo-Be-Bein Hydropathic Hospital, the barrel is placed in the center of a Petri dish containing the medium prepared according to the recipe: Yeast extract (Difco), r2 Agar (Bakto-Difco), g Filtered thermal water, Distilled water, ml of 4aiilKy Petri is placed for 30 hours in a drying oven at. The contents are then examined under a microscope at a low magnification in order to detect the presence of the characteristic spiral structure of Beggiatoa, which is a gliding mobile of these microorganisms, some of which are visible to the naked eye. Microscopic analysis also detects areas with seemingly free of contaminants of Beggiatoa. One of these areas is cut out with a sterile scalpel and applied to a clean agar plate of the same composition as in the first case. At the same time, the surface with Beggiatoa threads is placed on the clean surface of a new agar plate. The incubation is continued again for 24 hours at 30 ° C. The cutting, transplanting and incubating operations are repeated two more times. The result is a pure culture of Beggiatoa, Example 2. Preservation of the strains. In the manner described in example 1, eight strains were selected. They differ from each other in the diameter of the filaments, the speed of their sliding and the shape of the formed on the agar colonies. They are successfully preserved by three different methods: short-term, medium-long and long-term. 2.1, Method of short-term conservation. The plate is stored in a refrigerator at 4 ° C, sealing the Petri dish. The strain is moved every ten days, for agar is prone to drying, 2.2. Preservation of average duration. A semi-liquid medium of the following composition is prepared: Yeast extract, g 2 Calcium chloride, g O 1 Sodium acetate, g Agar, g Filtered thermal water. After sterilization, fungal catalase is added to the medium in quantities of 10 international units / liter. The catalase solution is pre-sterilized in a cold state on a milliport filter. The size of the micropores is 0.22 µm. A small die, agar containing Beggiatoa, is placed in a tube with 10 m of medium. Incubation is carried out at 30 C. Beggiatoa develops in the upper part of the tube. Tpy6j y can be kept for three weeks at 30 C. Therefore, the cultures are moved at the rate of 0.1 ml per tube. 2.3. Long term storage method. Prepare for 24 hours a culture in a stirred medium as described in Example 1. Then centrifuge the precipitate washed with sterile Ringer's solution, vymorsshivayut and lyophilized. The composition may be stored for several months in a refrigerator in a well-closed container. After rehydration, fragments of threads are capable of development. Example 3. The cultivation of strains. 3.1. Graft. A small cube of agar with a 5 mm face size was cut out from a plate prepared as described in Example 1. One cubic was placed in a 500 ml flask containing 100 ml of the following medium: Yeast extract, g4 Calcium chloride, g0.2 Ammonium acetate, t1 FROM 4 "LRT Thermal Water, ml 1000 This medium has a pH of 6.6. The flask is placed on an orbital bag rotating at a speed of 150 rpm with a turning radius of 1.25 cm. Here the flask remains for 16 hours at a temperature .. The resulting culture is homogenized using a bashalka for 1530 minutes under sterile conditions. The homogenized culture will be grafted. 3.2. Cultivation. 5 ml of the above-described grafting is placed in a 500 MP flask containing 100 ml of the same medium that was used to prepare the grafting. The flask is incubated for 24 hours with an orbital stirrer. Obtain 0.8 g of dry matter Beggiatoa per 1 l of culture. Repeat the operation with different strains No. 11418-11425 and, varying conditions in addition to the limits, obtain yields ranging from 0.5 to 2 g of Beggiatoa in dry form per 1 liter of culture. 3.3. Growth regulation. Every 2 hours, a culture sample is taken and homogenized with a stirrer. The optical density at 600 nm is determined on a spectrophotometer. The homogenized sample precipitates very slowly and this ensures reliable reading of the results. This confirms the direct dependence of growth on the number of cells. 3.4.Definition of dry weight. The classical method of drying in the oven does not give results, due to the high water content. Therefore, it is necessary to dry at least 400 ml of the culture by lyophilization. 3.5. Determination of bacteriostatic activity. Beggiatoa is a strictly azrobic microorganism, and the oxygen concentration in the test tubes is insufficient for it. The test was carried out in flasks, stirring, thereby increasing the oxygen supply. Three series of 50 ml cones are prepared, each containing 18 ml of nutrient broth. The flasks of the first and second series are inoculated each with 4 ml of a 24-hour culture of the pathogenic strain. Three pathogenic strains were used: Pseudomonas aeruginosa ATCC 10145, Esehericfiia coli ATC 11755 and Staphylococcus aureus ATCC 12600 Bacteriostatic product samples were prepared, the centrifugal culture obtained according to Example 3-n, 2, but for 8 h. suspension in the volume of saline solution, equal to the volume of the solution that pops up at the center “by fouling. Saline containing biomass and floating material is divided into 2 ml samples.
    In flasks of the 1-ii series, add 2 ml of physiological saline containing homogenized biomass. In flasks of the 2-n series, add 2 ml of saline alone.
    In flasks of the 2nd series, not inoculated with pathogenic material, add 2 ml of physiological saline solution containing homogenized biomass.
    The flasks are incubated at 37 ° C on an orbital stirrer and the optical density is measured at 600 hours and 16 hours later. As a result of measuring the optical density of the series 1.2 3, the corresponding parameters A, B and C. The difference A – C, subtracted from B, then divided by B and multiplied by 10 determines the bacteriostatic activity of biomass as a percentage of inhibition. In the same way, the bacteriostatic activity of the floating material is determined, and 2 ml of the floating homogenized material are added to the cones of the first and third series containing biomass, together with about 2 types of saline. The results are summarized in table. 1. Example 4 (comparative). For comparison, the method described in Example 3, p. 5 determines the bacteriostatic activity of natural barrein. The% inhibition was after 16 hours of incubation for P.aeruginosa, S.aureus, and E.coli, respectively, 100, 83, and 96. In other words, the bacteriostatic activity of the biomass of this invention was almost as strong as that of Barizhin. Example 5 (strains NCIB 1141 11425). Strains were allocated as described in example 1. In table. 2 shows the optical density of these strains obtained 5, 10 and 24 hours after cultivation of each strain under the conditions described in Example 3, item 2 and the bacteriostatic activity of the biomass obtained with respect to three three strains of P.aeruginosa, S.aureus and r.ccli. Morph | .hpogi. Strain NCIB 1KI8. On agar: forms cpugmy isolated colonies with a diameter of 8-15 mm with a white center and transparent edges, when viewed in a microscope (x 100): - the colony is formed by burying visible spirals surrounded by compacted material- in liquid culture: homogeneous culture , when examined in the microscope (x 100): long filaments 80 1.8 microns, sometimes formed by short well visible 1M11 bacilli, aggregation is absent, very few refrains of 10 inches of inclusions.
    Strain NCI.B 11419. On agar: forms isolated white colonies with a diameter of 4-8 mm with blurred edges; radially, thick filaments extending from the center of the colony spread radially, but not reaching the edges: when viewed in a microscope (x 100), the edges of the colony are formed by compressed helical threads: in liquid culture: homogeneous culture, when viewed in a microscope (x 100) : isolated, very short filaments 3.6–0.9 µm, separated very clearly by constrictions; there are no refractive inclusions, aggregates are observed. Strain NCTB11420. On agar: forms flat, isolated opaque colonies with a diameter of 2-5 mm with scalloped edges when viewed in a microscope (x 100): colonies are formed from fragments of filaments forming poorly developed spirals, in liquid culture: homogeneous — culture, when viewed in a microscope ( x 400):. filaments are missing long bacilli 9-1.4 µm with a small amount of refracting inclusions. Strain NCIB 11421. On agar: forms individual colonies with a diameter of 4-7 mm with blurred edges, similar to the colonies formed by the strain NCIB 11419, but more white, the edges of the colonies are transparent: when viewed in an ultrasonic scan (x 100): there are no visible spirals in liquid culture: homogeneous culture, when examined under a microscope (x 400): the picture is close to that observed for the 1l420i strain; there are no threads: long bacilli 18-1.4 µm containing some amount of refractive inclusions. Units are missing. Strain NCIB 11422. On agar: an isolated colony never forms, covering all the gaps with transparent mooid threads when examined and microscopic (x 100): yarns formed by many files in liquid culture; . homogeneous culture at the sixth hour, several small aggregates, when viewed under a microscope (x 400): long, separated filaments of size from 90. 1.4 to 1.4-1.8 µm, the filaments are divided into long units by clearly visible constrictions of very few refractive inclusions. Strain NCIB 11423. On agar: resembles strain NCIB 11422; there are no isolated colonies, dense mycoid filaments are visible; when viewed under a microscope (x 100): the threads are more clearly defined because they are formed from a larger number of filaments; in liquid culture: it has the form of large flakes (aggregates), when viewed in a microscope (x 400): the filaments are much shorter than that of strain 11422 and are separated by well-defined narrow segments, length 9-10 18 m very quickly, later 5h, appear with refractive inclusions. Strain NCIB 11424. On agar: resembles strain NCIB 11423, there are no isolated colonies: mycoid filaments when viewed in a microscope (x 100): filaments formed by a large number of filaments in liquid culture: large flakes (aggregates)} are formed when examined in microscope (x 400): filament length 140 1.8 microns, forming long, bunches; visible constrictions absent: late development
    Table 2 (10 hours later) of refractive inclusions. Strain 11425. On agar: forms opaque isolated colonies 2-6 mm in diameter, when examined in a microscope (x 100): colonies formed from isolated cells that create compressed helix: in liquid culture: homogeneous culture when viewed in a microscope ( x 400): homogeneous short filaments 4 1.4 microns, few refractive L1X inclusions. The use of the invention allows for the production of biomass on an industrial scale, whereas Barejina in natural conditions Loluchsya very slowly and in small quantities, which does not allow to meet the needs of medicine and cosmetic industry. Table 1 Inhibition of pathogenic microorganisms Activity (% inhibition of Pathogenic oxidation) biomass agent of the emerged material P.aerugino-7041 S.aureus10045 E.coli7011
    0.91 0.95 0.95 0.95 0.75
    1090263
    114230,360 0,496 0,378
    114240,217 0,737 0,587
    114250,395 0,981 0,838
    10 Continued tabl. 2
    73 87 25
    57 80 27
    100 91 90
    权利要求:
    Claims (1)
    [1]
    METHOD FOR PRODUCING BIOMASS OF MICROORGANISMS OF TYPE BEGGIATOA Possessing Bacteriostatic Activity, namely, that the cells of microorganisms of the strain Beggiatoa NCIB 114Ί8,
    NCIB 11419, NCIB 11420, NCIB 11421, NCIB 11422, NCIB 11423, NCIB 11424 or NCIB 11425 are homogenized, the homogenate is cultured under aerobic conditions at 30 G for 16-24 hours at pH 6.6 in a liquid nutrient medium and biomass and / or culture is selected liquid.
    § ω c>
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