Question

Scientific name of the yeast used in wine production is

• A. Saccharomyces cerevisiae
• B. Propionibacterium shermanii
• C. Lactobacillus bulgaricus
• D. Lactococcus lactis

Answer 1

The correct option is A Saccharomyces cerevisiae

There are different forms of yeast used for the production of fermented products in industries. Saccharomyces cerevisiae is a type of budding yeast also known as brewer’s or baker's yeast and has been the key ingredient in baking, wine making and brewing for centuries. This yeast is able to ferment sugar into carbon dioxide and alcohol and that is why they are used in the baking and brewing industries.

Propionibacterium shermanii is a bacterium which produces propionic acid and carbon dioxide in their anaerobic metabolism of sugars which makes the holes and flavour in the Swiss cheese.

Yoghurt is made from fermentation of lactose in whole milk by a rod shaped bacteria Lactobacillus bulgaricus.
Butter the sweet and sour cream made from the milk is churned in the presence of bacterium like Streptococcus lactis and Leuconostoc citrovorum.