1. Standardize Milk . Milk is often standardized before cheese making to optimize the protein to fat ratio to make a good quality cheese with a high yield . 2. Pasteurize/Heat Treat Milk . Depending on the desired cheese, the milk may be pasteurized or mildly heat-treated to reduce the number of spoilage organisms and improve the environment for the starter cultures to grow.
An opportunistic infection is an infection caused by bacterial, viral, fungal, or protozoan pathogens that take advantage of a host with a weakened immune system or an altered microbiota (such as a disrupted gut flora).Many of these pathogens do not cause disease in a healthy host that has a normal immune system.n opportunistic infection is an infection caused by bacterial, viral, fungal, or protozoan pathogens that take advantage of a host with a weakened immune system or an altered microbiota (such as a disrupted gut flora). Many of these pathogens do not cause disease in a healthy host that has a normal immune system.
Infections that take advantage of weakness in the immune defenses are called opportunistic.. The phrase opportunistic infection is often shortened to OI.. The rates of OIs have fallen dramatically since the introduction of antiretroviral therapies. However, OIs are still a problem, especially for people who have not been tested for HIV.