Perature, etc) to inhibit microbial growth is called hurdle technology hurdle technology is becoming an increasingly popular preservation strategy the kinetics of microbial growth are covered in the third part of the chapter all four phases of the microbial growth curve are important to food microbiologists. Start studying nutritional factors that influence microbial growth learn vocabulary, terms, and more with flashcards, games, and other study tools.
Factors affecting microbial growth many factors affect bacterial growth but the most important ones are: water -- bacteria need water to dissolve the food they use for energy and growth water allows the food to get into the cells, is used for the many chemical reactions necessary for life and growth, and allows waste products to escape. Bakari a mrutu makuru nyarobi nutrition as a factor affecting microbial growth introduction: introduction nutrition is the provision, to cells and organisms, of the materials necessary to support life.
Growth factors are organic compounds such as amino acids , purines , pyrimidines , and vitamins that a cell must have for growth but cannot synthesize itself organisms having complex nutritional requirements and needing many growth factors are said to be fastidious. The influence of environmental factors on growth microbial growth is greatly affected by chemical and physical nature of their surroundings instead of variations in nutrient levels and particularly the nutrient limitation. Bacteria have a minimum, optimum, and maximum temperature for growth and can be divided into 3 groups based on their optimum growth temperature: psychrophils, mesophils, thermophils, or 172: factors that influence bacterial growth - biology libretexts.
Sometimes bacteria are referred to as individuals or groups based on their patterns of growth under various chemical (nutritional) or physical conditions for example, phototrophs are organisms that use light as an energy source anaerobes are organisms that grow without oxygen thermophiles are organisms that grow at high temperatures.
Growth factors growth factor: a compound that is necessary for certain bacterium to grow when a bacterium cannot synthesize certain things such as amino acids or vitamins on their own, the growth medium they are in must contain the necessary material in order for them to grow.
Factors affecting the microbial growth the influence of environmental factors on growth as bacteria shows divers food habits, it also exhibits diverse response to the environmental conditions growth and death rates of microorganisms are greatly influenced by number of environmental factors such as solutes and water acidity. Nutritional factors that influence microbial growth last updated on sat, 11 aug 2018 | causative agent growth of any bacterium depends not only on a suitable physical environment, but also an available source of chemicals to use as nutrients.