Yeast malt broth media constituents (peptone, yeast extract, malt extract; dextrose) and phenyl methane sulfonyl fluoride (PMSF) were purchased from Hi Media laboratories.
All the other medium constituents namely yeast extract, malt extract, peptone and tween 80 were simultaneously optimised.
A 24 central composite rotatable design was used to study the combined effect of the nutritional constituents like yeast extract, peptone, mineral salt and trace metals.
Remarkably, several absorption bands due to beta-glucans, which are major constituents of the yeast cell-wall, fall in this spectral region [ 37].
Mannan, composed mainly of d-mannose, is a major constituent of the yeast cell wall, accounting for approximately 13%% (w/ w) [ 23].
Chitin is a relatively minor constituent of the yeast cell wall comprising 1 to 2% of the cell wall dry weight in S. cerevisiae, C. albicans [ 58, 81, 82].
A 23 factorial central composite experimental design was used to study the combined effect of the nutritional constituents like soybean meal, yeast extract and wheat bran.
It has been suggested that it is the dilution of specific food constituents, i.e. yeast extract, that determines the life span of the fruit fly [ 2], as opposed to a reduction of total calories.
Elementary analyses of media constituents, the enzyme and the yeast biomass gave better insight into carbon and nitrogen fluxes distribution.
The availability of essential elements, coenzymes, nitrogenous constituents, and growth factors in yeast extract might be responsible for the amylase inducing property of the isolate.
