Products

Spak AY-50 is specially recommended in formulations containing Sodium Sulfate. The commonly used surfactant of the same family e.g. Sodium Dioctyl Sulphosuccinate exhibits poor performance in presence of sodium sulfate. For example, 0.02% Spak AY-50 will reduce surface tension of 15% sodium sulfate solution to 26 dyne/cm where as sodium dioctyl sulphosuccinate will be salted out under these conditions. Similarly Spak AY-50 shows better tolerance to Ca ions than Sodium Dioctyl Sulphosuccinate.

SPAK DD-40 (Conc) is a blend of an anionic surfactant and a fatty acid ester. The former acts as a defoamer i.e. kills the foam formed and the latter acts as an antifoam i.e. reduces foam formation tendency. SPAK DD-40 (Conc) very well suits the fermentation system and has no adverse effect on yeast vitality and cell count. It is fully biodegradable and will not pose any problem in the effluent treatment plant. The fatty acid ester has a high molecular weight and will not distill off and contaminate the end product. Foam can be a disaster in fermentors because it frequently results in loss of production. In a biotechnology system the conditions for foam production are always potentially present. Many organisms generate proteins, which are released into the surrounding medium. The proteins and the CO2 liberated generate foam in the fermentation system. SPAK offers a specially developed product SPAK DD-40 (Conc) a blend of an antifoam and defoamer to suppress this foam.