Animal and vegetable fats and oils determination of melting point in open capillary tubes slip point animal and vegetable fats and oils determination of melting point in open capillary tubes slip point skip to main content. The melting point of a substance is the temperature at which the material changes from a solid to a liquid state. The iodine value and slip melting point of palm oil, palm olein and palm stearin were determined in accordance to. Animal vegetables fats and oils dtermination of melting point in open capillary tubes slip point by quality and standards authority of ethiopia qsae. Pdf in this study the relationship between slip melting point smp and fatty acid composition of blends before and. For the slip melting points, the consensus values and uncertainties were 35. Mettler toledos excellence melting point systems offer the possibility of measuring melting point and melting range, boiling point, cloud point, and slip melting point. The slip point is the temperature at which the column of the solid begins to rise.
Thirtythree laboratories collaborated in the inter. The influence of different tempering temperatures on slip point values is, however, dependent on the nature of the sample. Reproducibilities of the mettler dropping point and softening point were considered excellent and for slip point, poor. Slip melting point determination of palm stearin palm stearin, the solid fraction of palm oil, is a natural source of hard fat. This work described study protocols on the production of palmbased standard reference materials for iodine value and slip melting point. New melting point excellence systems from mettler toledo. Pdf palmbased standard reference materials for iodine. The slip melting point smp or slip point is one conventional definition of the melting point of a waxy solid. Physical and chemical characteristics of oils, fats, and waxes, champaign, illinois, aocs press, 2006. The effect of different factors affecting the slip melting point of palm oil has been evaluated. Pdf slip melting point estimation of fat blends before. The melting characteristic of palm stearin is an important quality parameter and depends on its content of different fats. This method is applicable to palm oil and hard fats, including palm.
Factors affecting slip melting point of palm oil products springerlink. Palmbased standard reference materials for iodine value and slip. It is determined by casting a 10 mm column of the solid in a glass tube with an internal diameter of about 1 mm and a length of about 80 mm, and then immersing it in a temperaturecontrolled water bath. For hydrogenated oils and for some high melting palm stearins, tempering has no effect. Objective the slip point open tube melting point is an index of temperature at which fat softens or becomes sufficiently fluid to slip or run. Animal and vegetable fats and oils determination of.
Slip melting point meaning slip melting point defin. Slip melting point estimation of fat blends before and after interesterification based on their fatty acid compositions article pdf available in journal of food lipids 103. Melting point, boiling point, cloud point, and slip melting point measuerement on the melting point excellence instruments. The slip point is an index of the temperature at which fat softens and becomes sufficiently fluid to slip in an open capillary tube. Animal and vegetable fats and oils determination of melting point in open capillary tubes slip point 1 scope this international standard specifies two methods for the determination of the melting point in open capillary tubes, commonly known as the slip point, of animal and vegetable fats and oils referred to as fats hereinafter. Melting point, boiling point, cloud point, and slip. Factors affecting slip melting point of palm oil products. Melting point m565 slip melting point determination of. The melting temperature of palm stearin is usually. Scope this method is used in the characterization of palm oil in international trade. This method determines the slip point of a sample and is applicable to such fats as coconut oil, stearin, hydrogenated fats, and hard tallows. The most important factor appears to be the difference in tempering temperatures. Details of the software products used to create this pdf file can be found in the general info relative.
Aacc approved methods of analysis, 11th edition aacc. Automatic measurements of of up to six samples simultaneously and observe your measurements via video, or store and replay it for measurement verification. Pdf slip melting point estimation of fat blends before and after. The slip melting point smp or slip point is one conventional definition of the melting point of.
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