p3-preservatives

Question 1

Sulphur dioxide

Answer 1

• gas-powder-liquid
• antioxidant and antimicrobial
• ph dependanr- - molexcular 0,5-0,8 ppm
• affordable, easy to use, quick effect
• origin sintetic or volcanic-bio
• regulatted 100ppm organic
• limited for cans
• allergen
• pungen-Leo erazo-others +hygeen

Question 2

Low SO2 implication

Answer 2

Relevabce (healthd, natural wine, legal limit)
Risks
- quality and self life
-operational cost
-recell-rederm
Consideration for producers
hygeeen-filtration- other additives
filtration
o2 management-(raking inert gas, dry ice)
_types/styles of wine
-Recomendations: pilot tastung, consumer feedback, QA/QC

Question 3

velcorine

dmdc-

Answer 3

• anitbacteria-prevents referm RS
• careful dossage-toxic
• 0,1$/bt
• 125ppm normally - max 200
• not organic-Carl Jun
• Prohibited in some countries

Question 4

K sorbate

Answer 4

• antiseptic
• pre bottling
• 150ppm
• RS, cans BIB- complementary
• no taste
• no effective for B
• better if >12%

Question 5

ascrobic-vit C

Answer 5

• natural perception
• only for oxidation not animicrobial

Question 6

other

Answer 6

chitosan- brett (in barrel)
expensive 270$/kg 5ppm