Online Encyclopedia

COLZA OIL

Online Encyclopedia
Originally appearing in Volume V06, Page 748 of the 1911 Encyclopedia Britannica.
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COLZA OIL, a non-drying oil obtained from the seeds of Brassica campestris, var. oleifera, a variety of the plant which produces Swedish turnips. Colza is extensively cultivated in France, Belgium, Holland and Germany; and, especially in the first-named country, the expression of the oil is an important industry. In commerce colza is classed with rape oil, to which both in source and properties it is very closely allied. It is a comparatively inodorous oil of a yellow colour, having a specific gravity varying from 0.912 to 0.920. The cake left after expression of the oil is a valuable feeding substance for cattle. Colza oil is extensively used as a lubricant for machinery, and for burning in lamps.
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