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    The factors which effect the growth of bacteria in food are intrinsic as well as extrinsic. Among these the most important ones are the intrinsic factors which are already inherent in the food such as Ph, moisture content, nutrient content, the presence of antimicrobial substances and biological structure of food etc. All of these factors determine the growth of bacteria because different types of bacteria require different growth conditions. If the growth conditions for bacteria are favored, then that bacterium can grow and multiply in the food leading to food spoilage such as changes in color, texture and smell of food. The one most important factor for any bacterium can only be defined by knowing the species of that specific bacterium. For some bacteria, moisture is the most important factor, whereas for some other bacteria, pH plays a pivotal role in their growth. Generally speaking, we can say that temperature or moisture is the first important factor that we see while providing a suitable environment for that specific bacterium to grow.

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