mutations - brewing & distilling center · 2019-11-06 · mutations. american ale ii 1272...
TRANSCRIPT
MUTATIONS
MUTATIONS
YEAST CELL:
• 500 YEAST SPECIES
• 1000’S OF STRAINS
• 100’S OF BREWING STRAINS
BREWERS YEAST:
• 16 CHROMOSOMES
• (WILD YEAST 32 CHRMS)
• 6K GENES
MUTATIONS
• DNA
• CHROMOSOME
• GENE
Sexual- Plants
- Fungi (wild yeasts)
- Animals
- Some Protists
A + B = AB
Cell Reproduction- 2 types
Asexual- Bacteria
- Brewing/Distilling Yeast
- Some Protists
MUTATIONS
MUTATIONS
ASEXUAL REPRODUCTION
GOAL?
MUTATIONS
DNA:
• FUNCTION?
• “DOUBLE HELIX”
• 4 DNA BASES
• BASE-PAIRING RULE
MUTATIONS
FIRST STEP OF CELL REPRODUCTION:
DNA REPLICATION =
MAKE COPIES OF DNA USING
BASE-PAIRING RULE
https://www.youtube.com/watch?v=9
kp9wiYMQUU
MUTATIONS
MUTATION, DEFINTION:
MISTAKE IN THE BASE-PAIRING RULE
DURING DNA REPLICATION
FACTORS THAT INCREASE MUTATION RATE:
1. INCREASE RATE OF REPLICATION
2. STRESSES
3. CHEMICALS & UV LIGHT
MUTATIONS
MUTATIONS:
• BASIS FOR EVOLUTION
• RANDOM AND BY CHANCE
• CAN BE CONTROLLED
NEW BREEDS
NEW YEAST STRAINS
MUTATIONS
American Ale II 1272
60-72°
Slightly nutty, soft, clean and tart finish
American Ale 1056
60-72°
Well balanced. Ferments dry, finishes soft
California Ale V WLP051
66-70°
Produces a fruity, full-bodied beer
California Ale WLP001
68-73°
Clean flavors accentuate hops; very versatile.
Denny’s Favorite 50 1450
60-70°
Can be used for almost any beer style. Accentuates malt,
caramel, or fruit character.
Northeast Ale ECY29
65-70°
A unique ale yeast with an abundance of citrusy esters accentuating American style hops.
Yeast Strains (Mutations):
MUTATIONS
RESULTS OF ACCIDENTAL BREWING YEAST MUTATIONS?
HOW CAN WE DECREASE CHANCES OF YEAST MUTATIONS?