Which risk increases transiently when a bioreactor's impeller shears long-chain alginate molecules?

💡 Explanation

Impeller shear causes alginate bond breakage by hydrodynamic forces; this generates smaller polymeric fragments. Because the smaller molecules' increased surface area causes higher instantaneous oxygen consumption via oxidative degradation, the dissolved oxygen drops transiently; therefore lower oxygen happens; rather than the other options under these conditions.

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