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.
In its simplest form, cell culture involves the dispersal of cells in an artificial environment composed of nutrient solutions, a suitable surface to support the growth of cells, and ideal conditions of temperature, humidity, and gaseous atmosphere.n such a system, a researcher can precisely measure the response of the cellâs alterations in culture, prospective drugs, the presence or absence of other kinds of cells, carcinogenic agents, and viruses. Cell cultures and DNA can be established from blood or small fragments of tissue (biopsies).