Effect of enzymatic interesterification on the melting point of tallow‐rapeseed oil (LEAR) mixture
Pirkko Forssell, Riitta Kervinen, Maija Lappi, P. Linko, Tapani Suortti, Kaisa Poutanen
Journal of the American Oil Chemists Society
Abstract
To reduce the melting point of a tallow‐rapeseed oil mixture, the triglyceride composition of the mixture was altered by enzymatic interesterification in a solvent‐free system. The interesterification and hydrolysis were followed by melting point profiles and by free fatty acid determinations. The degree of hydrolysis was linearly related to the initial water content of the reaction mixture. The rate of the interesterification reaction was influenced by the amount of enzyme but not much by temperature between 50 and 70°C. The melting point reduction achieved by interesterification depended on the mass fractions of the substrates: the lower the mass fraction of tallow, the larger the reduction of the melting point.
Extracted Claims
2 claims extracted from this paper into the knowledge graph
enzymatic interesterification reduces melting point of tallow-rapeseed oil mixture
“The melting point reduction achieved by interesterification depended on the mass fractions of the substrates: the lower the mass fraction of tallow, the larger the reduction of the melting point.”
enzymatic interesterification is influenced by amount of enzyme
“The rate of the interesterification reaction was influenced by the amount of enzyme but not much by temperature between 50 and 70°C.”