Introduction the api, id 32 and rapid id 32 database update takes into account. The final inoculum was prepared by transferring 700. Evaluation of the api 50chb system for the identification and biochemical characterization of bacillus larvae e carpana, l marocchi, l gelmini to cite this version. Smear fixation was carried out by spreading loopful of isolate on a glass slide and passing it over low flame 3 times. Isolation and identification of cholesterol lowering. The api 50 ch identification system was evaluated for the identification. Confirmation of the identity of lactobacillus species. To be used with 50 300 api 50 ch for the identification of the genus lactobacillus and. Isolation, characterization and identification of lactic. Characterization of lactic acid bacterium i pediococcus. Candida albicans and escherichia coli in mixed culture. Smear was covered with 1% crystal violet, lugols iodine solution and washed with 95% ethanol and stained with 2. To be use with 50 300 api 50 ch for the identification of bacillus and related general, as well as gramnegative rods belonging to the enterobacteriaceae and vibrionaceae families.
The api 50 chl medium was used according to the manuof lab were counted on mrs agar plates after anaerobic incubation in o. Carbohydrate fermentation test api 50 chl identification. Api 50 chl this method for identification of lactobacillus species is based on the fermentation pattern of 49 carbohydrates. Phenotypic and molecular identification of lactobacilli. Api 50 chl medium, intended for the identification of the genus lactobacillus and related genera, is a readytouse medium which allows the fermentation of the. Bacillus et apparentes enterobacteriaceae et vibrionaceae. Comparison of api 50 ch strips to wholechromosomal dna.
Standardized, miniature versions of conventional methods for identifying gramnegative, grampositive and anaerobic bacteria, yeasts, and other clinically significant microorganisms. The wellestablished method for manual microorganism identification to the species level, biomerieuxs api identification products are test kits for identification of gram positive and gram negative bacteria and yeast. Isolation, characterization and identification of lactic acid. Overnight cultures of the isolates grown in 10 ml mrs broth at 30. Pdf biochemical characteristics of lactic acid bacteria. Comparison of api 50 ch strips to wholechromosomal dna probes for identification of lactobacillus species. Further identification of lab strains by sugar fermentation using api 50 chl system biomerieux france. Api 50 ch is used in conjunction with api 50 chl medium ot50410 for the identification of lactobacillus and related genera and with api 50 chbe medium ot50430 for the identification of bacillus and related genera, enterobacteriaceae and vibrionaceae. Besides, the experiment used the api 50 chl kit biomerieux to do biochemical test and identify the strain after treated with hyaluronic acid. Isolation and identification of lactic acid bacteria with. Tests were performed according to the manufacturers instructions.
Biomerieux api the global reference for identification. Api 50 ch api 50 chbe medium enterobacteriaceae 50300 50410 api 50 ch api 50 chl medium lactobacillus 50300 50430 api 50 ch api 50 chbe medium bacillus gram negative identification gram positive identification yeasts anaerobes other api species guide api reference guide ref. The api strips were placed in the incubation boxes, the microtubules were inoculated with the prepared cell suspension and sealed with sterile liquid paraffin. Evaluation of the api 50chb system for the identification.
Lactobacillus species identification, h2o2 production, and. Data analysis was carried out to identify species using the apiweb version 1. This is a ready to use medium which enables the fermentation of 49 carbohydrates on the api 50 ch strip to be studied. Dominant lactic acid bacteria and their antimicrobial. Pdf comparison of api 50 ch strips to wholechromosomal. A program for a personal computer is described which allows quantitative comparison of the results for the utilization of 49 carbohydrates in the api 50 ch test kit with the tabulated values for 37 species of lactic acid bacteria. A suspension is made in the medium with the microorganism. The capability of isolates to fer ment carbohydrate in api 50 chl kit was observed duri ng fermentation. Isolation and identification of cholesterol lowering probiotic bacteria from palm wine.
Characterization of antimicrobial substance produced by. Api 50 chl medium qc set lactobacillus paracasei subsp. The results show that this method is not appropriate for identification of leuconostoc oenos strains isolated from wine of. Labeling quality and molecular characterization studies of. The identification software api lab 50 chl version 5. Api 50 ch kit research strip metabolism of carbohydrates, 10 strips. Using sterile pasteur pipettes, homogenized suspensions of the cells. Carbohydrate sources strains position code tests cm9 cm30 cm70 sm34 m67 e14 1 gly glycerol 2 ery erytrol. C were washed twice with sterile peptone water and the pellets were resuspended in api 50 chl medium, using sterile pasture pipettes. Comparison of api 50 ch strips to wholechromosomal dna probes for identi. Bacillus and related genera, as well as gramnegative rods belonging to the enterobacteriaceae and. Selection and biochemical characterization of lactic acid. Changes in amino acid contents during the fermentation of. Evaluation of numerical analyses of rapd and api 50 ch.
Using sterile pasteur pipettes, homogenized suspensions of the cells in the medium, with subsequent vortex mixing, were transferred into each of the 50 wells on the api 50 ch strips. Api 50 chbe medium is intended for the identification of. Api 50 chbe medium est destine a l identification des. Isolation and identification of probiotics pediococcus. Results api 50 chl identification of probiotic isolates the api 50 chl results confirmed that l.
Additional reagents 70380 zn 2x10g x x x 70402 tda 2x1 ampule. Evaluation of the api 50 chl system for identification of. Pdf on aug 1, 2019, hassan pyar and others published confirmation of the identity of lactobacillus species using. Colonies were suspended in an api 50 chl medium, which subsequently was added to the carbohydratecontaining tubes according to. This work was supported by a grant from the national institutes of health, 1uo147785. L inoculated api 50 chl medium suspensions was measured into the well using sterilized micropipette and covered with 50. Journal of chemical and pharmaceutical research, 2016, 87. The isolates and strains to be identified were cultivated on blood agar plates. Api 50chl test kits bio merieux,france were employed to confirm the. L from the initial bacterial suspension api suspension medium ampoule, 2. The api 50 chl system was assayed to determine its accuracy in classifying some species of lactic acid bacteria isolated from musts and wines. Prevalence and identification of lactobacillus species. Evaluation of the api 50chb system for the identification and biochemical characterization of bacillus larvae. Weissella, a novel lactic acid bacteria isolated from wild.
20 953 129 1400 635 1140 605 749 848 1519 618 1460 1016 1202 212 334 290 944 803 788 1250 1065 180 1073 352 1265 1555 788 637 853 906 631 1447 636 366 1031 736 395 831 1110 1000 1166 950 612 486