Products are categorised into various types based on their relation with microbial growth. There are three types of products. The first is Growth associated products then followed by Non-Growth associated products and Mixed mode product formation. In growth associated products, product is formed along with the growth of the microbial cells and product concentration is almost directly proportional to microbial growth rate. Innovations are new idea, device or process. Innovations are the application of better solutions that meet new requirements, inarticulated needs or existing market needs.