Screening for extracellular enzymatic activity
in yeast and yeast-like strains
The EEA profiles of yeast and yeast-like strains are given in
Tables 1 and 2.
More than 26% of A. pullulans strains demonstrated
the ability to hydrolyse starch, while this ability was
observed in only a few ascomycetes and basidiomycetes
(Tables 1 and 2).
More than 81% of basidiomycetes and 34% of A. pullulans
strains were positive for EsA (Tables 1 and 2). The use of
chemically different esters (Tween 80 or Tween 60) did not
produce significant differences in EsA profiles.
More than 60% of ascomycetes and 43% of A. pullulans
isolates exhibited LipA (Tables 1 and 2). All lipolytic strains
hydrolysed either tributyrin or triolein indifferently.
Approximately one-third of basidiomycetes exhibited
caseinolytic activity; this character was expressed almost
exclusively by Cryptococcus sp. and Pseudozyma sp. isolates
(Table 2). In particular, 83% of Pseudozyma antarctica
strains were caseinolytic (Table 2). Only half of caseinolytic
basidiomycetes were able to hydrolyse gelatine.