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Unique Natural Saccharomyces Cerevisiae Found In New Zealand
- Sep 28, 2018 -

The researchers looked at a naturally fermented yeast from the Kumeu River winery.Dr Matt Goddard, who led the study, said: "we identified nearly 100 different yeast strains during the fermentation process, many of which are genetically distinct from the rest of the world."Natural fermentation-dependent yeasts are natural, not artificially added, commercial yeasts, and Kumeu winery in west Oakland is one of New Zealand's wineries that makes wine using natural fermentation.Generally speaking, wines made by natural fermentation.


The researchers looked at a naturally fermented yeast from the Kumeu River winery.Dr Matt Goddard, who led the study, said: "we identified nearly 100 different yeast strains during the fermentation process, many of which are genetically distinct from the rest of the world."


Natural fermentation-dependent yeasts are natural, not artificially added, commercial yeasts, and Kumeu winery in west Oakland is one of New Zealand's wineries that makes wine using natural fermentation.Generally speaking, wines made by natural fermentation are of high quality, but until now, the origin of these yeast remains a mystery.


Goddard said: "the variety of yeast naturally fermenting at Kumeu is surprising.We want to know where these yeasts come from."Further genetic analysis showed that the yeast strains in the winery contained six different forms, did not interbreed, and they were not associated with commercial yeast strains.In addition, the from:winechina.com winery did not find any saccharomyces cerevisiae before the grapes were harvested, so the yeast that would later naturally ferment should have come from outside.


Based on this inference, scientists took samples from vineyards in the nearby valley of Matua and for the first time found that parts of the yeast strain of the natural fermentation process reside in local soil, bark and flowers.Although yeast does not move from place to place on its own, further tests have shown that it can be spread by insects, such as bees, to another site.


In addition, new oak barrels imported from France by the winery have been confirmed as one of the sources of the yeast mentioned above. These new oak barrels contain a large amount of yeast, many of which are related to the yeast subgroup naturally fermented by Kumeu winery.


Dr Goddard said: "" studies have shown that geography plays a decisive role in the biology of the wine bacteria, and New Zealand has a large number of unique wine yeasts.We will also do a lot of research to prove that New Zealand's unique wine yeasts will be a powerful tool for distinguishing the flavors of New Zealand wines.

SEP.28, 2018