Nutrient Medium Semi-synthetic

Semi-synthetic nutrient medium (SSMS) is an important tool in biotechnology and medicine. It is a combination of synthetic culture media and products of natural origin that are added to it to improve the quality and efficiency of microorganism growth. In this article we will look at the main characteristics, applications and advantages of PSPS.

A semi-synthetic nutrient medium usually consists of two components: a synthetic medium and a product of natural origin. The synthetic medium is a mixture of amino acids, carbohydrates, vitamins and other essential nutrients required for the growth of microorganisms. The natural product added to this medium can be varied, such as blood serum, plant extracts or microorganisms.

Adding a naturally occurring product to a semi-synthetic culture medium provides additional nutrients and growth factors that can improve the growth and development of microorganisms. This can be especially useful when microorganisms are sensitive to certain nutrients or when a higher growth rate is required. In addition, the addition of natural products can increase the resistance of microorganisms to stress factors such as antibiotics or changes in the environment.

The use of semi-synthetic culture media is widespread in various fields, including medicine, biotechnology, nutrition research and ecology. For example, in medicine, semi-synthetic culture media are used to grow bacteria, fungi and other microorganisms that are used to produce drugs, vaccines and diagnostic tests. In biotechnology, semi-synthetic media can be used to cultivate microorganisms used in food production, cosmetics and other industries.

One of the main advantages of a semi-synthetic nutrient medium is its flexibility and adaptability to various conditions. The addition of a product of natural origin allows you to regulate the composition of the medium, adapting it to the specific needs of microorganisms. This makes semi-synthetic media more versatile and effective than synthetic media.

It should also be noted that semi-synthetic media are more environmentally friendly than synthetic media because they do not require the use of synthetic chemicals for production.

**Semi-synthetic nutrient medium** – P.S. of synthetic origin, to which a product of natural origin (blood or serum) is mixed. Nutrient media are required to feed microorganisms during the experiment. Nutrient media are used for growing and propagating bacteria, microscopic algae, fungi, and viruses.

The formation of nutrient media is a complex process, including the accumulation of various components or products, dilution of colloids, filtration and sterilization of solutions. Currently, synthetic washable dry bases are used for the preparation of liquid culture media. When using pyogenic cultures, antigens are added to S.'s composition to prevent their adaptation. Microorganisms differ in their requirements for the composition of the environment. Some can reproduce only on a certain S., others - on various media. There are products of different composition (or density), and therefore they are divided into dense (meat peptone agar, gypsum agar), simple with a minimum number of components (MPA, MPA with chlorella) and combined (hyperonomic). A variety of additives are used as nutritional factors for dense