Cholesterol-Lowering Fiber. The dietary fiber in guava helps protect your heart by promoting healthy cholesterol levels. High LDL cholesterol is a risk factor for heart disease, and consuming dietary fiber helps reduce blood LDL cholesterol levels, according to the Linus Pauling Institute.uava is a source of antioxidants, which help protect your heart. A 2-ounce guava fruit provides 125 milligrams of vitamin C, or 208 percent of the daily value. Individuals with a higher consumption of vitamin C have a lower risk of developing coronary heart disease, according to the Linus Pauling Institute.
Types of Cell Culture Contamination The two main forms of cell culture contamination are chemical and biological. Chemical cell culture contamination refers to the adulteration of a cell culture with nonliving substances that have a negative impact on the culture system.
This event is assessed by the clinical microbiologist by examining a Gram stain of the sputum. More than 25 squamous epithelial cells at low enlargement indicates salivary contamination. When a sputum specimen is plated out, it is best to get the portion of the sample that most looks like pus onto the swab. If there is any blood in the sputum, this should also be on the swab. Microbiological sputum samples are usually used to look for infections by Moraxella catarrhalis, Mycobacterium tuberculosis, Streptococcus pneumoniae, and Haemophilus influenzae. Other pathogens can also be found.