Principles of preservation
What are the 4 principles?
Tempreture control
Restricting Moisture
Exclusion of Air
Control of pH levels
What are the most common food preservation techniques used in the olden times?
Salt, Oil, and suagr
What are flow process charts?
A graphic representation of a production process relating to production and manufacturing of a specific product.
What is a unit operation?
A unit operation is a basic step that changes food form like heating or mixing
What is quality management?
Can be defined as a set of policies, processes, and procedures required to plan/execute a safe and reliable food supply for consumers.
What principle is correlated with these numbers 0-14?
What is the easiest form of food preservation?
Dry salting
Explain food transportation flow charts
Food Produced → Packaged → Transported → Delivered
What are the production systems?
Small scale, Manuel, Large Scale, Automated/ Computerised
This food additive is commonly used to prevent food from spoiling and is often found in canned vegetables.
Salt
What principle is present in aerobes if they are not stored correctly?
Exclusion of Air
What is pickling usually combined with?
Fermentation, canning, and refridgeration.
What food management system are flow charts closely linked?
HACCP
Which unit operation is used to separate solid food particles from liquids, commonly seen in juice production?
Filtration
A natural or synthetic additive that enhances food flavor by mimicking the taste of natural ingredients. Often found in processed foods and beverages.
Flavour Enhancer
Is drying an example of temperature control or Exclusion of air?
Temperature control
What are the causes of food deterioration and spoilage
chemical, physical and enzymatic changes, microbial activity or environmental factors
What are the 7 symbols' meanings used in flow charts?
Operation, inspection, decision, transportation, delay, n storage
What is the difference between small-scale and large-scale production?
Small-scale is handmade in small batches for local markets. Large-scale uses machines for fast, consistent mass production.
This additive is often used to sweeten food and is found in many sugar-free or low-calorie products.
Aspartame
Which principle is harder to achieve?
Exclusion of air
What is freeze drying?
Is a process that replaces oxygen with gasses to extend shelf-life.
Name the flow chart process of making bread
Flour + Water + Yeast
↓
Mixing Ingredients
↓
Kneading Dough
↓
Proofing/Rising
↓
Shaping
↓
Baking
↓
Cooling
↓
Packaging
One unit operation in milk processing and explain its function?
Pasteurisation - Milk is heated to a specific temperature to kill harmful bacteria, then quickly cooled. This makes milk safe to drink and extends its shelf life.
This substance is used to prevent food from spoiling by inhibiting the growth of microorganisms and is commonly found in cured meats.
Sodium Nitrite