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pH and Acidity in Food Science: Difference, Food Safety, Titratable Acidity, Fermentation and Shelf Life Control In food science, pH and acidity are not just laboratory terms. They are core control points that affect food safety, flavor, texture, fermentation, preservation, processing behavior and shelf life. A food technologist, quality officer, food safety inspector, dairy analyst, beverage processor or student cannot fully understand food quality without understanding these two concepts. Many people use pH and acidity as if they mean the same thing. This is a common mistake. They are related, but they are not identical. pH tells how active the acidity is. Titratable acidity tells how much total acid is present. This difference is very important in food analysis. A product may have a low pH, but its total acid content may not be very high. Another product may have the same pH but a stronger sour taste because it contains more total acid. This is why both pH and titratable acidi...

 Macronutrients in Food Science: Carbohydrates, Proteins, Fats, Digestion, Energy Value and Food Product Development Introduction Macronutrients are nutrients required by the human body in large amounts. They are important not only for human nutrition, but also for food chemistry, food processing, product formulation, nutrition labeling and consumer health education. The three major energy yielding macronutrients are: Carbohydrates Proteins Fats Water is also required by the body in large amounts and is sometimes discussed with macronutrients. However, water does not provide energy. Its importance is linked with hydration, temperature regulation, digestion, transport of nutrients and many essential body functions. For food science students and food technologists, macronutrients should not be understood only as diet components. They are also functional food ingredients. They affect texture, taste, mouthfeel, viscosity, shelf life, processing behavior, label declaration, ...

Food Extrusion Technology: How Heat, Pressure, Shear, and Moisture Transform Raw Materials into Modern Food Products Every puffed snack, breakfast cereal, pasta shape, TVP chunk, pet food kibble, or instant baby food powder carries a hidden engineering story. Behind its shape, crunch, density, texture, and shelf stability is one of the most powerful technologies in food manufacturing: extrusion . Extrusion is not simply a machine operation. It is a controlled food transformation system where raw material chemistry, moisture, heat, pressure, mechanical shear, screw design, die geometry, drying, and packaging work together to create a finished product. For food technologists, extrusion is important because it connects food science with real industrial production. What is food extrusion? Food extrusion is a continuous thermo mechanical process in which a prepared food mixture is forced through a barrel by one or two rotating screws. Inside the barrel, the material is mixed, compressed...