Low-alcohol yeast strain discovered

3rd March, 2014 by Rupert Millar

Australian scientists have discovered a natural yeast strain which can reduce alcohol levels by up to 1.5%.

yeastAccording to the Wine Spectator, the team at the Australian Wine Research Institute have isolated a yeast strain which proved capable of reducing alcohol levels in Shiraz by 1.4% and 0.9% in a Chardonnay.

The strain is called Metschnikowia pulcherrima and it was picked out from around 40 different strains and is usually present during normal fermentations.

However, while it may be of interest to producers wishing to lower the alcohol content in their wines and not use genetically modified yeasts, the new strain (also called AWRI 1149) has its problems too.

It was the most successful culture the team created when it came to fermenting sugar but it is not able to fully ferment a wine and dies leaving residual sugars behind.

This necessitates the use of the more normal Saccharomyces cerevisiae to create a dry wine – raising the alcohol level in the process and negating the reduction in alcoholic content gained by using M. pulcherrima.

Senior research scientist, Cristian Valera, admitted that more work was required.

Leave a Reply

Your email address will not be published. Required fields are marked *

Subscribe to our newsletters

Job vacancies

Commercial/Sales Manager

Crush Wines Ltd
Bremhill/Home office, GB

Wine Buyer

Adnams
Southwold, UK

Sales Manager - Scotland

Eurowines Ltd
Scotland

Sales Manager - North-West England

Eurowines Ltd
North-West England, UK

Sales Manager - London

Eurowines Ltd
London, UK

Key Account Manager - Grocery

Australian Vintage Limited
London (Croydon), UK

Key Accounts Manager - Impulse

Australian Vintage Limited
London (Croydon), UK

Business Development Manager

Regency Wines Ltd
North Devon & Somerset, UK

Sales Manager - North East England

Eurowines Ltd
Within 15-20 mile radius of York, UK

National Account Manager

Ehrmanns Wines
London, UK

London Account Manager

The Drinks Club
London, UK

London Sales Executive

Gourvid Limited
London and Greater London, GB

Logistics Administrator

Speciality Drinks Ltd
Park Royal, London, UK

Head of Sales - Hush Heath Estate

Hush Heath Estate
Kent/ London, UK

London Sales Executive

VDS UK Ltd
London, UK

The Global Merlot Masters 2017

Deadline : 2nd May 2017

db Awards 2017

Deadline : 28th April 2017

The Global Organic Masters 2017

Deadline : 2nd May 2017

The Global Sparkling Masters 2017

Deadline : 12th May 2017

Click to view more

Global Chardonnay Masters 2016

Now in its fourth year, the competition will identify the best Chardonnay from all around the world in every price range.

Rioja Masters 2016

Now in its fifth year, the competition will recognise and reward the finest Riojas on the world stage.

Fortified Masters 2016

Now in its third year, The Fortified Masters will reward the best fortified wines on offer.

The Global Malbec Masters 2016

the drinks business is proud to announce the inaugural Global Malbec Masters 2016.

Click to view more