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In a continuous reactor, the medium contains 40 g.l-1 of maltose and the medium flow rate is 10 litres per hour and the effluent contains 20 g.l-l of lactate. What is the productivity of lactate production from this reactor?

50 g maltose.l-1
50 g lactate.l-1
200 g maltose.l-1
200 g lactate.l-1

Correct Answer: 200 g lactate.l-1

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