Abstract
AbstractPreliminary experiments designed to ascertain whether extracts of seaweed afford suitable media for the propagation of yeasts are described. Various extracts from seaweeds as well as carbon‐rich compounds isolated from seaweeds have been used as media or as media supplements for the cultivation of 46 strains of yeast, representing a wide range of yeast genera. Further, the effects of variations in. the environmental conditions upon such cultures have been studied. In general, extracts from Laminaria cloustoni (frond) were found to afford the most suitable media, and Candida krusei, Candida solani, Nadsonia fulvescens, Pichia membranaefaciens and Oospora lactis were the most prolific yeasts. Aeration of the cultures tended to increase the yield. No appreciable increase in yield was obtained when yeasts were cultivated in media prepared from seaweed treated with 0.1 and 1.0 N‐hydrochloric acid.
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