[
    {
        "medium_id": "J84",
        "compound": "GAM broth",
        "g_l": 59,
        "mmol_l": null,
        "optional": "no"
    },
    {
        "medium_id": "J84",
        "compound": "Agar",
        "g_l": 2,
        "mmol_l": 5.94654,
        "optional": "no"
    },
    {
        "medium_id": "J84",
        "compound": "Distilled water",
        "g_l": null,
        "mmol_l": null,
        "optional": "no"
    }
]