The most important factor appears to be the difference in tempering temperatures. The melting characteristic of palm stearin is an important quality parameter and depends on its content of different fats. 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. The slip point is the temperature at which the column of the solid begins to rise. Pdf slip melting point estimation of fat blends before. Animal and vegetable fats and oils determination of. This method determines the slip point of a sample and is applicable to such fats as coconut oil, stearin, hydrogenated fats, and hard tallows. Palmbased standard reference materials for iodine value and slip. Melting point m565 slip melting point determination of. Melting point, boiling point, cloud point, and slip.
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. For hydrogenated oils and for some high melting palm stearins, tempering has no effect. 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. Pdf slip melting point estimation of fat blends before and after. The effect of different factors affecting the slip melting point of palm oil has been evaluated. Automatic measurements of of up to six samples simultaneously and observe your measurements via video, or store and replay it for measurement verification. This method is applicable to palm oil and hard fats, including palm. The influence of different tempering temperatures on slip point values is, however, dependent on the nature of the sample. Pdf palmbased standard reference materials for iodine value. This work described study protocols on the production of palmbased standard reference materials for iodine value and slip melting point. Reproducibilities of the mettler dropping point and softening point were considered excellent and for slip point, poor. Factors affecting slip melting point of palm oil products springerlink. Factors affecting slip melting point of palm oil products.
Details of the software products used to create this pdf file can be found in the general info relative. Pdf in this study the relationship between slip melting point smp and fatty acid composition of blends before and. Melting point, boiling point, cloud point, and slip melting point measuerement on the melting point excellence instruments. The slip melting point smp or slip point is one conventional definition of the melting point of a waxy solid. Thirtythree laboratories collaborated in the inter. New melting point excellence systems from mettler toledo. Animal vegetables fats and oils dtermination of melting point in open capillary tubes slip point by quality and standards authority of ethiopia qsae. Slip melting point meaning slip melting point defin. Physical and chemical characteristics of oils, fats, and waxes, champaign, illinois, aocs press, 2006. 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. The melting point of a substance is the temperature at which the material changes from a solid to a liquid state. 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.