IMMOBILIZATION OF CITRATE-PRODUCING YARROWIA-LIPOLYTICA CELLS IN POLYELECTROLYTE COMPLEX CAPSULES

Microcapsules prepared from sodium cellulose sulfate and poly(dimethyl diallylammonium chloride) have been shown to be well suited for encaps ulation of biological objects. The citrate-accumulating yeast Yarrowia lipolytica was immobilized using this method without severe lass of v itality and catalytic activity. The encapsulated cells had an average productivity of 0.125gl(-1) h(-1). The yield was 0.45g acid g(-1) gluc ose. I;he immobilized biocatalyst lost the catalytic activity, but was still able to divide after 2,000 h use.