網頁2024年4月24日 · Prepare agar powder by placing it in the microwave with the appropriate amount of water. The label should provide specific directions although 6.9 grams to 500 … 網頁2024年1月6日 · Create a time series exposing the agar to the air, closing the lids and sealing at one minute, five minutes, ten minutes, then at ten-minute intervals. Close and seal the last two plates after one hour and two hours respectively. Place the agar plates somewhere safe and watch for a week or two.

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網頁2002年8月1日 · Sterilization of Escherichia coli. Escherichia coli (MN522) was suspended at 2×10 4 cells per ml in aqueous 0.9 wt.% NaCl solution. The suspension was treated for 5 … 網頁Sterilizing glass jar using microwave is quick and easy instead of the usual oven ways. Wash and clean the jar thoroughly before sterilization. Wet the glass jars and cook on … bright stars charlotte nc

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網頁2024年7月20日 · Soak the plastic: Soak the plastic container in a bleach-water solution that has about 5 to 10 percent bleach in it.This will ensure that the plastic is completely sterilized.Since disinfecting with bleach won’t take very long, the amount of time needed to soak is quite little.It is possible to heat plastic by running it through a hot ... 網頁2024年3月19日 · With the remaining solution (about 100ml) still stirring, add 2 grams of agar powder. The next step will require you to apply heat to the mixture. Before you do this, however, you should be aware that agar has a strong tendency to boil over when it reaches 100 ⁰ C. Someone in your group should be watching the flask at all times once you see … 網頁2009年10月4日 · You must also add a food source at a dillution of around 4%-5% (by water weight). A very simple recipe: 100mL water (distilled is best) 15gm Agar powder. 5gm … bright stars breastfeeding pillow