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Entrapment in calcium alginate beads of the marine diatom, Haslea ostrearia, was successfully used for stock-culture managment and afterwards the sowing of ponds for the greening of oysters. After storage during almost 2 months, viable and cultivable cells were recovered from beads by dissolving alginate matrix but an original way lies in directly introducing beads in ponds and promoting natural cell...
A new cell immobilization technique using polyvinyl alcohol crosslinked with sodium nitrate was developed. This new technique can simultaneously eliminate the agglomeration of PVA beads and the toxicity of boric acid caused by the PVA-boric acid and PVA-orthophosphate methods. Alcaligenes eutrophus was immobilized using four different PVA entrapment processes. The stability, swelling, relative mechanical...
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