Osmophiles

Osmophilic organisms grow similarly to halophiles (salt-loving) in habitats with low water activity . The growth-limiting factor here is high sugar concentrations. You protect yourself against the high osmotic pressure through the synthesis of compatible solutes . Almost all osmophilic organisms can be assigned to the yeast .

Osmophilic yeasts play an important role as spoilage agents in the sugar and confectionery industry. They can be attacked by honey, fruit syrups, fruit juice concentrates, liquid sugar, pickling sheets, and in extreme cases also marzipan and shoe polish . These yeasts include: Saccharomyces rouxii ; Saccharomyces bailii ; Saccharomyces. bisporus var. mellis ; Saccharomyces cerevisiae , Debaryomyces .

literature

• AD Brown: Microbial Water Stress Physiology , John Wiley & Sons, Chicester, UK, 1990, ISBN 0-471-92579-9