The Internet belongs to everyone. Let’s keep it that way.

Protect Net Neutrality
Loading presentation...

Present Remotely

Send the link below via email or IM


Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.



No description

Jossie Tan

on 5 November 2014

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of T

The Chemistry of Wine Making
by Josephine Priscilla
What is Wine?
Alcoholic beverage made from fermented grapes or other fruits
What's inside the wine?
Aroma compounds
Crushing & Destemming
The grapes are removed from the stems and gently crush to break the skin. Sulfur dioxide is added in this stage to prevent oxidation and inhibit microbial activity

*Enzymes may also be added to break down the cell walls and aid the release of juice
The juice extraction process depends on the type of wines to be used, but always involves
squeezing the berries. After pressing the juice is allowed to stand to separate the solids.
If necessary the juice may be clarified by filtration or centrifugation.
The juice is innoculated with live yeast, which then carries out the fermentation reaction :

C6H12O6 → 2C2H5OH + 2CO2
Unwanted solids, salts and microorganisms are removed through a variety of physical processes
Biochemical reaction of fermentation
organic acids and trace amounts of organic acids, phenolics, vitamins, minerals and nitrogenous compounds
Aim :
to pick the grapes at their optimum composition
The Process
Advantages and Disadvantages of Drinking Wine
Advantages :
Prevent heart attack
Skin care
Help the digestion
It slows the brain activity
Cause a serious disease (e.g. destruction of liver, high blood pressure, obesity)
The right dose to drink wine
12 oz. of regular beer
5 oz. of wine
1,5 oz. (a shot) of 80 proof liquor
Dairy Science Food Technology. (2012). The Science and Technology of Wine Making. Retrieved from and-technology-of-wine-making.html
Grain and Grape. (2012). Red Wine Making. Retrieved from
The Human Touch of Chemistry. Wine Making A Chemical Process. Retrieved from
The Science Behind Food. The Red Wine Benefits and Disadvantages. Retrieved from
Time. (2009). When does social drinking become at risk drinking? Retrieved from
Thank You for your attention!
- Wine is an alcoholic beverage that made from fruits especially grapes
- Wine contains water, carbs and other organic acids
- There are 5 processes of wine making, harvesting, crushing, pressing, fermenting and purification
Full transcript