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Food Flavors & Quality. Food Expectations. Color – quality factor Relates to quality We expect meat to be red Bananas to be yellow – not brown! Naturally occurring pigments affect food color. Food Expectations. Texture – quality factor Gum to be chewy Crackers to be crisp - PowerPoint PPT Presentation
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Food Flavors & Quality
Food Expectations Color – quality factor
• Relates to quality• We expect meat to be red• Bananas to be yellow – not brown!• Naturally occurring pigments affect food
color
Food Expectations Texture – quality factor
• Gum to be chewy• Crackers to be crisp• Refers to qualities felt with fingers, tongue
& teeth• Changes in texture usually due to water
status
Food Expectations Size & shape – quality factor
• Expect foods to have certain sizes & shapes• Easily measured• Fruits & vegetables graded by size & shapes
How Do We Taste? Tongue – taste buds – help perceive
flavor 4 main tastes
• Bitter• Sour• Salty• Sweet
Lifesaver Activity
Sensory Science Part of food science Dedicated to finding ways to help
humans accurately describe the flavors & other sensory properties of food (scent)
Flavor – quality factor People differ in preferences
Measure Taste Best method – use taste panels –
professionals or customers Other evaluation methods used –
chemical & mechanical
Quality Standards Help ensure food quality Types
• Research – setup by company• Trade – setup by members of an industry• Government – some mandatory, some
optional All help to provide common language
for all involved Quality standards by USDA http://www.ams.usda.gov/AMSv1.0/standards
Quality Control Manufacturing plants usually have
some type of internal, formal, quality control • Inspection duties• Lab tests• Oversee sanitation• Guide research & development
http://www.youtube.com/watch?v=mT-5sEDse3E
Classroom Taste Tests Tomorrow we are going to set up
blind taste tests to see if we can taste the difference between brand name & generic foods.
This is similar to how consumers would do a taste test for a company.
http://www.youtube.com/watch?v=v7lw_vhxtNc
http://www.youtube.com/watch?v=_0TsqVKmjAw
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