from Sigma-Aldrich
Co. LLC., USA. The analytical-grade reagents and chemicals, namely,
sodium chloride, sodium acetate, glucose, yeast, extract, peptone,
tryptone, di-potassium phosphate, monopotassium phosphate, glycerol,
sodium carbonate, sodium bicarbonate, sodium potassium tartrate, sodium
sulfate, copper sulfate, ammonium molybdate, trifluoroacetic acid
(TFA), Coomassie Brilliant Blue G-250, and sodium arsenate were purchased
from Himedia Pvt. Ltd., India. The xylan substrate was purchased from
Carbosynth, UK, and rye arabinoxylan from Megazyme, Ireland.