Answer: Yoghurt, a popular fermented dairy product, is manufactured through a series of carefully controlled steps that transform milk into a gel-like consistency with a characteristic tangy flavor. This process relies on specific starter cultures and precise environmental conditions to ensure quality and safety. **Step-by-Step Method of Yoghurt Manufacture** 1. **Standardization of Milk:** The process begins with adjusting the fat and solids-not-fat (SNF) content of the milk to meet specific product...

Answer: The manufacture of Mozzarella cheese involves a unique 'pasta filata' or spun paste method, crucial for its characteristic stretch and melt properties. This process relies heavily on controlled lactic acid fermentation to achieve a specific pH, which chemically alters the casein matrix, making it suitable for stretching. Processed cheese, in contrast, involves blending and melting natural cheeses with emulsifying salts to create a stable, homogeneous product, though it is susceptible to various ...

Answer: The manufacture of ice cream is a complex process involving several critical steps, each contributing significantly to the final quality attributes such as texture, body, stability, and flavour. Understanding these steps and the specific roles of processes like cooling, ageing, and homogenization is essential for producing high-quality frozen desserts. ### Steps in the Manufacture of Ice Cream **1. Ingredient Receiving and Storage:** The process begins with the careful selection and quality as...

Answer: The manufacture of casein, a primary milk protein, is broadly classified into two main types based on the coagulation method: acid casein and rennet casein. Each method yields a product with distinct functional properties. ### Methods of Preparation of Acid Casein Acid casein is produced by lowering the pH of skim milk to its isoelectric point, which is approximately pH 4.6. At this specific pH, the net electrical charge on the casein micelles becomes zero, causing them to aggregate and precipi...

Answer: Membrane processes represent a significant advancement in dairy processing, offering distinct advantages over traditional concentration methods like evaporation, distillation, and centrifugation. These pressure-driven separation technologies utilize semi-permeable membranes to selectively separate components based on molecular size, shape, and charge, allowing for precise fractionation and concentration of milk and whey constituents. ### Advantages of Membrane Processes over Conventional Conce...