Abstract
MEASUREMENTS of C02 in the brine of eight closed-top cucumber fermentation tanks were made throughout the active fermentation period. Methods for collecting brine samples from different locations in closed-top tanks and physical variations of their purging system are discussed. When N2 purging was maintained at the nominal rate of 1.13 m3/h, excessive C02 concentrations were not detected. At reduced purging rates potentially damaging levels of C02 did develop and a high incidence of cucumber bloating was observed, particularly in the upper sections of the tanks. The results also confirm that the tendency for bloating is inversely related to depth below the brine surface.
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