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    What People Are Saying

    very useful
  • Angela
  • 12/18/2015
  • Just what we needed for our petrie dishes.
    works fine
  • Elizabeth
  • 10/04/2015
  • This works fine,I just wish it had come with mixing instructions
    Many uses
  • Tumblemark
  • 02/26/2012
  • Adkins is right that the pre-made solution is a better buy, but only if you need a general purpose petri dish filler (just keep it refrigerated or frozen). With dry agar you can make special media for fungi, etc. You can also make electrophoresis gels.

    reward points

    Agar, 6 g, dehydrated

    Ages 12+

    Item# CH-AGAR

    $4.30 in_stock

    In Stock

    Order now to ship Tomorrow. Express shipping is available.
    Product Overview
    Add water to this agar powder and sterilize it if desired for a pure agar base (no nutrients added).

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    • Product Details

      Agar, 6 g, dehydrated

      Add water to this agar powder and sterilize it if desired for a pure agar base (no nutrients added). This container makes about 200 ml agar solution, enough to cover 15 standard 90-100 mm petri dishes (not included).

      This agar can be sterilized in a pressure cooker before pouring into sterile plastic dishes. Use 15 lb. pressure for 15 minutes.

      This agar does not have nutrients added to it; however, since it's an organic substance (made from seaweed), it's a medium that encourages bacteria growth. You can mix a little chicken broth with the agar if you want to add more nutrients.

      Instructions:Mix 1 level teaspoon of dehydrated agar with 100 ml (3/8 cup) of room-temperature water. Bring to a boil while stirring to ensure the agar is completely dissolved. Pour 10-12 ml hot agar in each petri dish, just covering the bottom. Replace the dish top immediately after pouring to prevent contamination. Let dishes stand 1 hour for agar to solidify. This recipe makes 100 ml of nutrient agar solution, enough to cover 7-9 standard 90-100mm petri dishes.

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