| 摘要 |
The procedure, in which a container (2) is filled with washed and ground olives and mixed to concentrate the oil droplets prior to extraction, includes a stage in which the oxygen content of the gas phase in the container is maintained at a predetermined level by the injection of one or more inert gases into the upper part of the container. Alternatively, the container can be filled with a gas phase first before adding the olive pulp. In either case, the volume of oxygen in the gas phase is set at between 6 and 12 per cent by volume, measured by probes (3) inside the container. The gases are fed into the container through pipes (11, 12) with valves (8, 9) linked to the probes via a control unit (5).
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