Growth of microorganisms in food is dependent on various parameters. The factors influencing the growth of microorganisms are physical, chemical and biological in nature. The factors can be generally classified as intrinsic and extrinsic factors. They decrease the nutritive value and wholesomeness of food. Hence, the knowledge of the factors that favor or inhibit growth of microorganisms is essential to an understanding of the principles of food spoilage or preservation. The various factors that affect the growth of microbes are given as follows, Nutrients and other constituents in food, acidity, water content, biological structure, availability of oxygen, and physical and environmental factors etc. Producing various metabolites that give bad odor or taste. However, growth of microbes in food is not always harmful, sometimes it is beneficial. For example; Many microbes are inoculated in food to make various fermented food products. Many factors affect growth and activity of microorganism in food.

Shivangi Ojha

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