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Food oral processing, digestion & perception FPE
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From an engineering perspective the digestive tract..
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Is a series of bioreactors and separation units.
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Terms in this set (51)
From an engineering perspective the digestive tract..
Is a series of bioreactors and separation units.
From an engineering perspective the stomach..
Is a receptacle, grinder, mixer and a pump that controls the digestion process. Also, it is a flexible volume reactor (5-40L).
Gastric juice (colourless)
- Lowers pH: breaks down food and kills bacteria
- Contains pepsin: protein break down
- Contains lipase: start fat break down
In vitro digestion models: static mono compartment model (RP Singh)
Simple set up containing a beaker with gastric juice. Dissolving a food product in the beaker for a certain amount of time he would measure the weight (measure for penetration).
Typical disintegration profiles (and there food groups) are:
- Exponential: canned beans, ham, candy
- Sigmoidal: fruits and raw carrots
- Delayed sigmoidal: dry foods such as peanuts, almonds and fried dough products
