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Table 1 Composition of non-supplemented DW medium

From: Efficient growth of Kluyveromyces marxianus biomass used as a biocatalyst in the sustainable production of ethyl acetate

Parameter Value
Sugars (88% lactose, 12% galactose) 78 g/L
Total N content (Kjeldahl analysis) 403 mg/L
Ammonium-N 106 mg/L
Urea-N 43 mg/L
Nitrate-N 4 mg/L
Nitrite-N <1 mg/L
Organic nitrogen (except urea-N) 250 mg/L
Proteina 1,560 mg/L
Sulfate-S 78 mg/L
Phosphate-P 410 mg/L
Potassium 2,600 mg/L
pH value 5.7 to 6.0
  1. Concentrated and partially demineralized sweet whey permeate was diluted with the same volume of water and autoclaved for 15 min at 121°C; precipitates were settled, and the upper clear phase was analyzed.
  2. aAccording to the EC Nutrition Labelling Rules Directive 90/496/EEC, organic N multiplied by 6.25.