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).
If you have lactose intolerance, you might find yogurt with live cultures easier to digest, since the bacteria produce lactase, the enzyme that breaks down lactose. Kefir and buttermilk are other dairy foods containing active cultures of lactic acid bacteria.actic acid bacteria ferment foods, which lowers the pH level and prevents harmful bacterial growth. In some cases, such as certain types of yogurt, fermented foods contain live bacteria cultures that might have beneficial intestinal effects.