A particular type of bacteria can under optimal conditions double every 19 minutes. Imagine that just after a 6 L culture became saturated with bacteria, a researcher poured the saturated culture into an amount of fresh culture that was three times the initial amount of culture (e.g., 5 L original culture is poured into 15 L of fresh culture). How long would it take for this total volume of culture to become saturated again, assuming that optimal conditions prevailed and that no cells died? Enter your answer to the nearest minute.
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