The relationships among composition, melting point, titer and solid fat index of beef tallow and its respective liquid and solid fractions obtained by industrial dry fractional crystallization are determined. The relationships between composition and titer do not permit one to distinguish beef tallow from the fractionated ones of the same melting range. On the other hand, the relationships between melting point and titer are different: the oleomargarines have melting points lower than their corresponding titers, and those of the beef tallow and oleostearins are higher. The fractionated fats have different contents of oleic and stearic acids compared with the unfractionated ones, but their percentage of palmitic acid does not vary remarkably. The dilatometric curves are displaced in a parallel relationship without important changes in their shape.
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Marı́a A. Grompone (1989) studied this question.
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