Lecture 19 Flashcards
What the general nutritional value that beverages have?
Depends on beverage
○ Generally adds liquid cals
○ Ca in milk
○ Flavanols in coffee tea and cocoa
What are the 3 ways to treat water?
Distillation
-Heated to steam and then condensed leaving behind minerals and other impurities
Reverse osmosis
-froced through membranes to remove impurities
Ozonation
-ozone gas used for disinfection instead of chlorine
What are the 2 most common treatments to remove salt water?
Reverse osmosis
Distillation
What is the basis for most beverages?
water
- hydrating
- cal free
Why is water treated?
Is important for taste and health
What is water used for in the body?
Lubricating joint
protecting spinal cord, hydration and removal of waste from body
body temp
Why is carbonated drinks safe?
Protect against bacterial spoilage during storage
What is the difference between seltzer, club soda tonic water and sparkling water?
Carbonated water= seltzer but can be sold with sweetener
Club soda= carbonated water with sodium carbonate and potassium carbonate
Tonic water: flavoured with quinine (used to treat malaria) and has sugar
Sparkling: carbonated water
How can a beverage be functional?
Some potential functional (health) benefit beyond basic needs
- electrolyte
- vitamin
- antioxidants
- Ca
- Energy
What is a TMA and how does it work?
Temporary marketing authorization
-Canadian regulations limit what can be put in a beverage or food may need a TMA if not permitted in the FDR
What is the benefit off electrolyte or isotonic beverages?
Prevent dehydraition and quick energy source
Same osmotic pressure as human blood for rapid absorption
K Na Mg
Meant for high performance , vigorous activity
How many carbs to functional beverages have?
6-8%
What is the purpose of energy drinks?
Increase mental awareness and concentration
What are the consequences of drinking energy drinks?
High heart rate
high BP
tremors
can risk dehydration if you are exercising
What nutrients do energy drinks have?
Caffeine 200-400ppm caffeine -180mg/serving B vitamins Ginseng Guarana Ribose Carnitine Taurine
What things are you not allowed to add to energy drinks?
Cannot add folic acid or vitamin A but various vitamins minerals amino acids at specified levels in accordance with TMA
What % of juice does it have to be to be considered juice?
100%
-anything less is a drink, labeled cocktails
What do some drinks have added to them?
Add flavour, gums for body/mouthfeel
Pasteurization and aseptic and HPP
Reduce pH for flavour and preservation
How do you make wine?
Controlled yeast fermentation
What gives wines different flavours?
Terroir (where grapes are grown) Temperature Rain/sun Pests Disease Yeast used Fermentation process Skin on/off and for how long Stainless steel vs oak cask/aging
How is white wine made?
White wine not made from green grapes, just less grape skin has come into contact with it
What is the alcohol content of wine?
10-14%
What produces the alcohol in wine?
• Yeast acts on sugar and produce alcohol and carbon dioxide
Whats the difference between white red and rose?
White wine will have skins removed
Red will remain with skins on
Rose will have a shorter time with the skins