Food Quality

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Shelf life defined as?
Period of time during which the food product will a) remain safe b) be certain to retain desired sensory, chemical, physical and microbiological charactersitics an c) comply with label decloratio of nutritional data nder recomended condi (IFST, 1993)
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Importance of determination of shelf life?
Food safety, commercial consideration, retailer supplier listing policy, consumer percpetion of the brand and product
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When should shelf life be determined
NPD / new forumation / new processes
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Initial shelf life stage
Desk
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Preliminary shelf life determination
NPD kitchen
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Confirmed shelf life determination
Pilot Plant
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Routine shelf life
Product testing in retail enviroment
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Shelf life of a product is a ...
characterisitc of the particular food, how it was processed and its packaging
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Intrinisic factors
ph, water, product formulation, product make up, oxygen, raw materials
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Extrinsic factors
Processing, packaging, good hygiene, storage and interaction between intriniic and extrinsic factors. Also, consumer handling and commercial considerations
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Cusees of food spoilage
chemical and biological, physical, spoilage by microrganisms, macor-organisms and product damage
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Direct approach
Actually storing the products in a controlled enviroment and minitoring the products for quality shelf life
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Indirect approach
Are used to estimate and predict the shelf life of perishable foods, involves using mathmatically modelling to validate food models
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Steps in shelf life in direct
Before the product goes on to the market, determine what types of microorganisms and spoilage or become unsafe, decide what tests, plan the shelf life, and determine the shelf life and continue to monitor once the product is on the market
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Indirect approaches
CIMSCEE, preservation index, resistance / capacity method, predictive food microbiology,
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CIMSEE
he Comite´ des Industries des Mayonnaises et Sauces Condimentaires de la Communaute´ Économique Européenne (CIMSCEE) has provided guidance on a safety value, Σs, for a microbiologically safe product preserved using acetic acid (Anonymous, 1993).
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Other cards in this set

Card 2

Front

Importance of determination of shelf life?

Back

Food safety, commercial consideration, retailer supplier listing policy, consumer percpetion of the brand and product

Card 3

Front

When should shelf life be determined

Back

Preview of the front of card 3

Card 4

Front

Initial shelf life stage

Back

Preview of the front of card 4

Card 5

Front

Preliminary shelf life determination

Back

Preview of the front of card 5
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