Milk and Microbial Growth | Free Online Course | Alison

Milk and Microbial Growth

Learn about the constituents of milk and how various techniques are used in preventing microbial growth in diary foods.

Food Technology
Free Course
This free online course on constituents of milk and microbial growth explains in detail whey proteins and their structure. You will learn about the different types of carbohydrates present in milk. You will also be able to differentiate between the major and minor constituents of milk. By the end of this course, you will become familiar with factors that combine to determine which microbes grow in a particular food and at what rate.
  • Duration

    3-4 Hours
  • Assessment

  • Certification

  • Responsive

  • Publisher






View course modules


This course begins by explaining whey proteins and how they have well developed secondary, tertiary and quaternary structures. You will learn about how antibodies (proteins) manufactured by the body help to fight against foreign substances known as antigens.You will also learn about a special type of antibody known as immunoglobulin. Immunoglobulin are  the most abundant type of antibodies found in all body fluids and they protect against bacterial and viral infection.

This course explains in detail the different types of carbohydrates available in milk and their composition. You will learn about dry milk and how it contains a very high percentage of lactose. You will also learn about the low composition of iron in milk and how iron present in milk is not sufficient for human needs. This course does a great job in explaining the relationship between the nutrients components of milk and how additives are used in preserving the nutritional value of milk. 

At the end of this course, you will be equipped with great knowledge of how some foods contain natural antimicrobial chemicals that inhibit growth of microorganisms responsible for spoilage. You will also be better informed about how the rate of microbial growth in milk is greatly influenced by storage temperature and the nutrients in food that determine which organisms can grow in the food.

Start Course Now

Learning Outcomes

Upon successful sompletion of this course, you will be able to

  • Explain whey proteins and how they have secondary, tertiary and quaternary structure
  • Describe immunoglobulins as antibodies that are synthesized in response to specific antigens 
  • Describe the carbohydrates that are in milk such as lactose, glucose, galactose and glycoconjugates 
  • Describe the  major and minor constituents of milk
  • Describe the functions of milk and enzymes in diary products 
  • List and explains the several types of enzymes present in the body
  • Describe the potential technological significance of few enzymes in milk
  • Explain the factors that influence growth of microorganisms in food 
  • Describe the multiplication of microbes and how it is affected by characteristics of food 
  • Distinguish between intrinsic and extrinsic factors of microbial growth


All Alison courses are free to enrol, study and complete. To successfully complete this Certificate course and become an Alison Graduate, you need to achieve 80% or higher in each course assessment. Once you have completed this Certificate course, you have the option to acquire an official Certificate, which is a great way to share your achievement with the world. Your Alison Certificate is:

Ideal for sharing with potential employers - include it in your CV, professional social media profiles and job applications
An indication of your commitment to continuously learn, upskill and achieve high results
An incentive for you to continue empowering yourself through lifelong learning

Alison offers 3 types of Certificates for completed Certificate courses:

Digital Certificate - a downloadable Certificate in PDF format, immediately available to you when you complete your purchase
Certificate - a physical version of your officially branded and security-marked Certificate, posted to you with FREE shipping
Framed Certificate - a physical version of your officially branded and security-marked Certificate in a stylish frame, posted to you with FREE shipping

All Certificates are available to purchase through the Alison Shop. For more information on purchasing Alison Certificates, please visit our FAQs. If you decide not to purchase your Alison Certificate, you can still demonstrate your achievement by sharing your Learner Record or Learner Achievement Verification, both of which are accessible from your Dashboard. For more details on our Certificate pricing, please visit our Pricing Page.



    You have received a new notification

    Click here to view them all