Abstract

PRIEBE, G. P. S.  and  GUTTERRES, M.. Olein production from pre-fleshing residues of hides in tanneries. Lat. Am. appl. res. [online]. 2012, vol.42, n.1, pp.71-76. ISSN 0327-0793.

Olein production from the residue constituents of hide pre-fleshing is carried out through the unit operations of extraction and subsequent fractionation of the fatty material (tallow). The residue was characterized and the content of fatty matter (31.83% by mass) revealed a high potential for its reuse. By the extraction/ digestion of tallow assays were carried out to quantify the effect of factors such as the presence of agitation, temperature and extraction time in terms of the efficiency of the extraction operation and acidity index of the tallows obtained. The oils were characterized according to the acidity index, iodine index, saponification index, water content, volatile matter content and fractions of saturated and unsaturated fatty acids. The oil composition was quantified using gas chromatography.

Keywords : Olein; Tallow Extraction And Fractionation; Tannery Waste; Pre-Fleshing Solid Waste; Design Of Experiments.

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