Extraction and separation

The rice germ is separated from the caryopsis during the bleaching refined phases, when the abrasion of the rice peripheral tissues (pericarp) purifies it from the by-product (rice bran). The process of extracting the rice germ from the bran (the rice germ is approximately the 15-20% of the bran) is exclusively of mechanic kind: the product is alimented within a vertical sifter, i.e. a cylindrical device provided with a nylon sifting cloth cloak, against which the bran is projected during a descending trend in a centrifugal way; whilst the bran passes through this cloak, the rice germ, which has kept its typical petal shape, is rejected, arriving to the bottom without extraneous fractions.