A brain natriuretic peptide (BNP) test measures the amount of the BNP hormone in your blood. BNP is made by your heart and shows how well your heart is working.Normally, only a low amount of BNP is found in your blood.uide. A brain natriuretic peptide (BNP) test measures the amount of the BNP hormone in your blood. BNP is made by your heart and shows how well your heart is working. Normally, only a low amount of BNP is found in your blood.
Bacterial cultures can be preserved for long by suspending in glycerol broth and storing at -20 to -70 degree Celsius. The protocol as below: To 0.85 ml of bacterial culture, add 0.15 ml of sterile glycerol (sterilized by autoclave, final glycerol concentration : 15%, v/v).
The best place to successfully and safely grow bacteria, mold and yeast are in specially shaped glass or plastic dishes called Petri Dishes. Cultures grow best with gentle heat in the range between 70 degrees to 95 degrees Fahrenheit.Cultures will grow at lower temperatures but at a much slower rate.f your dishes are fogged up inside, storing them in the refrigerator overnight before you add your cultures will usually clear enough of the fogging so you can see. Remember, most bacteria, molds and yeast grow well in a moist environment so if there is some drops of moisture inside the dishes this is fine.