Low-alcohol yeast strain discovered

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Your email address will not be published.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 *

Please note that comments are subject to our posting guidelines in accordance with the Defamation Act 2013. Posts containing swear words, discrimination, offensive language and libellous or defamatory comments will not be approved.

Subscribe to our newsletters

Customer Service & Operations Administrator

Marussia Beverages UK Ltd
London, UK

Marketing Director

Fishers Gin
London, UK

Sales Account Manager

Berkmann Wine Cellars
London, UK

Sales and Brand Manager

The Duchess Virgin Gin & Tonic
London, UK

Brands Sales Executive

Woolf Sung Ltd
London, UK

International Logistic Manager

Wine Source
London, UK

Sales Scotland

Liberty Wines
Scotland, UK

Sales Manager

Stilnovisti
London, UK

Prosecco Springs

London,United Kingdom
26th Apr 2018

Spirits & More

Rome,Italy
19th May 2018

db Awards 2018

London,UK
23rd May 2018
Click to view more

The Global Malbec Masters 2017

the drinks business is proud to announce the inaugural Global Malbec Masters 2017

The Global Sparkling Masters 2017

the drinks business is thrilled to announce the launch of The Global Sparkling Masters.

Click to view more