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Results for “alcoholic fermentation”
Showing 1–12 of 134 results
134 results — page 1 of 12
Factors that affect alcoholic fermentation
The alcoholic fermentation of grape juice is affected by the yeast strain, sugar concentration, alcohol concentration, fermentation temperature, presence of oxygen, concentration of assimilable nitrogen, vitamins and minerals, survival factors, preservatives, carbon dioxide and volatile acidity.
By Charl Theron · 7 min read
Towards a circular economy in winemaking - re-utilisation of yeast lees
Researchers explored the feasibility of using processed yeast lees generated during alcoholic fermentation as a nutrient supplement in subsequent fermentations.
By Karien O'Kennedy · 5 min read
The advantages and disadvantages of spontaneous fermentation
Irrespective of origin, cultivar, style or prize winners, all wines share one common factor, namely alcoholic fermentation. The sugar present in the grapes must be converted to alcohol and carbon dioxide, which requires yeast. The yeast can be received with the grapes or it can be added as pure…
By Charl Theron · 5 min read
Microbial monitoring and sanitation practices in wine cellars
Proper sanitation practices in wine cellars prevent the development of undesirable micro-organisms. Although the alcohol concentration of wines limits the micro
By Charl Theron · 7 min read
The myth of natural winemaking
A myth can be defined as a popular viewing of a natural process. If grapes are consequently left to ferment without any additives to form wine, it can be seen a
By Sandile · 4 min read
Traditional and alternative methods to monitor wine fermentations
The purpose of this article is to illustrate the potential contribution of infrared spectroscopy to the monitoring of wine fermentations.
By Hélène Nieuwoudt · 10 min read
Beer, ale, cider & stout: which laws apply? Know the Acts
Liquor Products Act (60 of 1989) regulates the production, composition and labelling of all liquor products – products for drinking purposes with an alcohol con
By Annalize · 4 min read
Resolutions adopted by OIV
The 14th General Assembly of the International Organisation of Vine and Wine (OIV), which met on 28 October 2016 in Bento Gonçalves (Brazil), adopted a total of
By OIV · 7 min read
