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ATCC 700699 is a microbial culture medium that supports the growth of a wide range of microorganisms, including bacteria, yeast, and fungi. It is composed of a mixture of nutrients, vitamins, and growth factors that provide the necessary components for the cultivation of diverse microbial species.

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2 protocols using atcc 700699

1

MRSA Reference Strain Preparation

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Reference strains of methicillin-resistant Staphylococcus aureus (MRSA) used in this study were ATCC 33591, ATCC 43300 and ATCC 700699 purchased from the American Type Culture Collection (ATCC, Manassas, VA, USA). Two clinical MRSA strains (BD 15358 and BD 16876) used in the assays were obtained from the Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur. All test bacteria were cultured overnight to a logarithmic phase of growth at 37 °C in Mueller-Hinton broth (MHB; Merck, NJ, USA) medium prior to the assays. Bacterial suspension from overnight cultures was adjusted using MHB medium to an optical density (OD) at λ 625 nm of 0.08–0.13, determined using a spectrophotometer, which corresponds to 106 colony forming units (CFU)/mL. For culture stock maintenance, strains were grown on Mueller-Hinton agar (MHA; Merck, NJ, USA) and cell suspensions prepared in 20 % (v/v) glycerol were stored at −80 °C.
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2

Antimicrobial and Biofilm Assays

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Pseudomanas aeruginosa, VRSA, MSSA and MRSE strains were obtained from the American Type Culture Collection (ATCC 700699, ATCC10145, ATCC 25,923 and ATCC 51,625, respectively; Manassas, VA, USA). A. baumannii and MRSA strains were obtained from the culture collection of the Göteburg University (CCUG; Gothenburg, Sweden) (CCUG 61,012 and CCUG 60578). S. epidermidis was obtained from the Belgian Co-ordinated Collections of Microorganisms (Belgium) (LMG 10474; Gent, Belgium).
For antimicrobial testing inoculums were prepared in Luria-Bertani Broth (LB; ThermoFisher Scientific, Waltham, MA, USA) and for biofilms assays in Tryptic Soy Broth (TSB, Biokar Diagnostics, Beauvais, France).
For cell-based assays human keratinocytes (HaCat) were obtained from Cell Line Services (Oppenheim, Denmark). For assays cells were cultured, at 37 °C in a humidified atmosphere of 95% air and 5% CO2, using Dulbecco’s Modified Eagle’s Medium (DMEM) with 4.5 g/L glucose, L-glutamine without pyruvate (Lonza, Verviers, Belgium) containing 10% foetal bovine serum (FBS, Biowest, Nuaillé, France) and 1% (v/v) Penicillin-Streptomycin-Fungizone (Lonza, Verviers, Belgium).
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