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NCYC 3995

Saccharomyces cerevisiae

Pre 2011 Name Saccharomyces cerevisiae

Equivalent Strain Designations Unknown

Depositor Sigmund Gjernes, Voss, Norway via Lars Marius Garshol.

Deposit Date August 2014

Habitat Traditional Norwegian Kveik Brewing yeast culture, Voss, Norway.

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Saccharomyces cerevisiae

Aerobic Utilisation and Growth

Glucose +
Galactose +
Sorbose -
Sucrose +
Maltose +
Cellobiose -
Trehalose Latent
Lactose -
Melibiose -
Raffinose +
Melizitose +
Inulin -
Soluble Starch -
Xylose -
L Arabinose -
D Arabinose -
Ribose -
Rhamnose -
Ethanol +
Glycerol -
Erythritol -
Ribitol -
Galactitol -
Mannitol -
Sorbitol -
A M D Glucoside Weak/Latent
Salicin -
Lactic Acid +
Succinic Acid -
Citric Acid -
Inositol -
Gluconolactone Latent
Glucosamine -
Methanol -
Xylitol -

Strain Information

Information Mixed culture containing at least 3 closely related strains (see NCYC 3996, 3997 and 3998) as determined by DNA Fingerprint analysis.
Highly aromatic yeast culture producing beers with a strong orange peel aroma. Reported as producing a high quality beer with no sour taste.
Suitable for fermentations at temperatures of 38 to 44 degrees centigrade. Will continue to ferment until all available sugars are used. Reported as producing alcohol levels of 5-7% for short fermentations and 12-14% after long fermentations.
Order as an active culture supplied from liquid nitrogen to maintain the strain ratios of the original deposit.
Depositor Sigmund Gjernes, Voss, Norway via Lars Marius Garshol.
Deposit Name Saccharomyces cerevisiae
Month of deposit August
Deposit Year 2014
Habitat Traditional Norwegian Kveik Brewing yeast culture, Voss, Norway.
Equivalent Strain Designations No
Reference No

Physical Characteristics

Optimum Temperature Unknown
Miniumum Temperature Unknown
Maximum Temperature Unknown


Shape Short-Oval to Oval
Min Broth Breadth (µm) 6
Max Broth Breadth (µm) 8
Min Broth Length (µm) 7
Max Broth Length (µm) 10
Min Agar Breadth (µm) 6
Max Agar Breadth (µm) 9
Min Agar Length (µm) 8
Max Agar Length (µm) 11
Arrangement Single and in pairs
Colour on Agar Cream
Surface on Agar Slightly Shiny
Texture on Agar Slightly Rough
Deposit in Broth Non-flocculent + Lumpy
Ring in Broth Absent
Ring Colour N/A
Pellicle in Broth Absent
Pellicle Appearance N/A
Pellicle Habit N/A

Cell Division

Budding Multipolar
Fission Absent

Filamentous Growth

Pseudomycelium Absent
Pseudomycelium Branch N/A
Pseudomycelium Form N/A
Blastospores N/A
Blastospore Shape N/A
Blastospore Location N/A
Blastospore Habit N/A
True Mycelium Absent
Clamp Connections N/A

Asexual Spores

Ballistospores Absent
Arthrospores Absent
Endospores Absent
Chlamydospores Absent

Sexual Spores

Ascospores Present
Ascospore Shape Round
Ascospore Wall Smooth
Ascospore No Per Ascus 2-4
Ascus Shape Oval
Conjugation Absent
Teliospores Absent
Teliospore Shape N/A


Assay Unknown
Salt Tolerant 10% Weak/Latent
Killer Unknown
Plasmid Unknown

Semi-Anaerobic Fermentation

Glucose +
Galactose +
Sucrose +
Maltose +
Cellobiose -
Trehalose -
Lactose -
Melibiose -
Raffinose +
Melizitose Latent
Inulin -
Soluble Starch -
Xylose -
A M D Glucoside -

Aerobic Utilisation and Growth - Sole Sources of Nitrogen

NH4 2SO4 +
KNO3 -
Ethylamine -
Cadaverine -
Lysine -


Vitamin Free Growth Unknown
Cyclohex 100ppm -
Cyclohex 1000ppm -
50% Glucose Growth +
60% Glucose Growth -
Lipolytic -
Acid Production -
37c Growth +
40c Growth Weak
Arbutin Hydrolysis -
Urease Activity -
Starch Production -
Acid Tolerant -