food quality Flashcards
what is quality
quality means fitness for use
why do we process food
Improving food safety
Preserving/enhancing nutrition
Palatability: Taste, flavour, appearance, texture
Storage
Function/Convenience
What should a food product be free from
Pathogenic micro-organisms
Toxic and Carcinogenic compounds
Physical hazards
Allergens (within reason)
What is Food Safety managed through
Hazard Analysis and Critical Control Point (HACCP)
Factors that influence quality
Food safety, nutrition, function, pleasure, symbolic and social, morality,
Nutrience in food provides
Growth, maintenance, and good health
Extrasensory perception (Esp.) important for
Infant foods, fruits and vegetables
How does the factor ‘Function’ influence quality
The consumer must be able to handle the product in a way they like.
Flexibility of applications
Time/convenience
Indirect pleasure form food
The process of cooking, the environment the food is eaten in
Direct pleasure from food
Taste, flavour, texture
Examples of situational foods
Religious or social festivals, time of year, time of day, age, celebratory foods, comfort foods
Examples of self (or community) imposed restrictions under morality
Food origins (free range, organic), Food processing (halal, kosher), restriction on ingredients (vegetarian or vegan, halal, kosher).
Does morality have a lot of overlap with symbolic and social factors – T or F
True
What is a moral effect on others
Climate change, fair trade
Factors that improve and influence quality
Improving food safety, preserving/enhancing nutrition, palatability: (taste, flavour, appearance, texture), storage, function/convenience
criteria used for quality control must be:
quantifiable
discreet
have a direct link to desired quality characteristics
direct measurement on Criteria used for quality control
presence (or absence) of pathogenic bacteria
minimum concentration of key nutrients
texture
direct measurements
colour, pH, water activity
‘critical values’/cut-off points can be determined
experimentally, by legislation, by comparison with other commercial products
quality control systems
the methods by which we ensure a given product or process meets expectations
quality control judgment inspections
possible outcomes…
retroactive…
example …
inspection of every individual final product
possible outcomes - accept, reject, or re-work
retroactive - the decision occurs at the end of the processing
example - fruit sorting
quality control - statistical quality control (SQC)
possible outcomes…
retroactive…
sampling of final product and in-depth evaluation in addition to inspection
possible outcomes - accept, reject - change the processing methods to reduce rejection in the future
retroactive - the decision occurs at the end of the processing before the nest round of processing
quality control - source inspections
possible outcomes…
retroactive…
at every stage of processing every input is verified
possible outcomes - accept, reject, change the processing methods dynamically to actively prevent rejections
proactive - the decisions are actively made to prevent issues occurring
quality control defintion - accuracy vs precision
it does not matter how goof your system is if it is giving you bad results
accuracy - how close a measurement of a value is to its true value AKA trueness –> resolved by better equipment and methods
precision - how close measurements are to something when measured repeatedly are to each other
overcome by - law or larger numbers
