Pellatrici method

In the pellatrici method, the peel oil is removed during the rst step and the fruit juice in the second step (Figure 5.5). In the rst step, the fruit is fed through a slowly turning Archimedean screw-type valve. The screw is covered with numerous spikes that will bruise the oil cells in the... 

FIGURE 5.5 Pellatrici method. The spiked Archimedes screw with lemons, washed with water. 

Neither of these methods, even when used simultaneously, was able to satisfy the increased demand for fruit peel oils at the start of the industrial era. The quantity of fruit processed could be increased, but the extraction methods were time wasting and the oil yields too low. With the advent of the twentieth century, the rst industrial machinery was developed. Today the only sterns of sign cance in use for the industrial production of peel oils can be class ed into four categories sfumatrici machines and speciale sfumatrici, pellatrici machines, food machinery corporation (FMC) whole fruit process, and brown oil extractors (BOEs) (Arnodou, 1991). 

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