. The world's commercial products [microform] : a descriptive account of the economic plants of the world and of their commercial uses. Plant products; Produits naturels; Produits végétaux; Natural products; Botanique agricole; Botany, Economic. .tfuKr>:^^^»^':^ 372 The World's Commercial Products y niai/f KHiin (sci- pp. 51-2). TIicsl- vii'kl about tliirty-livi' per cfiit. of a fairly thick, litjlit yrllow oil used for the .same p\irposrs , cotton sci'd oil. NON-DRYIXG OILS ; The f^'coiiiaijliical (listrii)iiti(in and characteristics of the olive tree (Oldi curopaca, hax'
. The world's commercial products [microform] : a descriptive account of the economic plants of the world and of their commercial uses. Plant products; Produits naturels; Produits végétaux; Natural products; Botanique agricole; Botany, Economic. .tfuKr>:^^^»^':^ 372 The World's Commercial Products y niai/f KHiin (sci- pp. 51-2). TIicsl- vii'kl about tliirty-livi' per cfiit. of a fairly thick, litjlit yrllow oil used for the .same p\irposrs , cotton sci'd oil. NON-DRYIXG OILS ; The f^'coiiiaijliical (listrii)iiti(in and characteristics of the olive tree (Oldi curopaca, hax'e l)ei'n described on p. 27(->. The olive (lowers in North Africa, in Italy, and the South of Spain in March or April ; tlie fruits mature in about v'ii;;ht months, and tlie princii)al harvest falls in the months of Dii'euiber and January, or later. It is extremely impor- tant to K^itl'i'i' tliL- fruit \viien just ripe. .IS at this it contains the largest amount of oil. To obtain oil of the linest (piality, not only should the oli\is be (Mcked bv hand, but the oil >houl(l be expiessed within a day or two after picking. In addition to the oil contained in tlii' fruit or pericarj), the Sei-ds also contain ,i certain |)roportion of oil. Tlie fruits are generally crushed entire in an edge-runner mill or in a roller mill, although the oil is obtained by crushing the tlesh alone, win i; the fruit is reduced to a pulp or â â ; The marc is |)acked in circular baskets made of es]),irto grass, or in bags bound with horsehair bands. A jiress is hlled with a number of tlii'se baskets or separated In' wooden or i)erforaled plat, s, that ;e llie i)res-ure. while ali.)wnig the oil to pass iougli. The pre-e-, ar.' of various kinds, some being hand-lever or screw presses, while the larger ones are hydrauhc. In anv case the lirsl pressure is a light one. as thereby a pure, clean oil is obi .in.'d as - ViiLun ; The pnu
Size: 1094px × 2284px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotanyeconomic, booky
