The effect of temperature and wax content on the appearance of turbidity in sunflowerseed oil

• Published in: Journal of the American Oil Chemists' Society Vol. 63; no. 10; pp. 1360 - 1363
• Main Authors: Turkulov, J, Dimic, E, Karlovic, D, Vuksa, V
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer-Verlag 01.10.1986; Springer
• Subjects: ACEITES VEGETALES; Applied sciences; Biological and medical sciences; CERAS; Chemical industry and chemicals; CIRE; COLD; COMPOSICION; COMPOSITION; Composition, physical and chemical properties; Exact sciences and technology; Fat industries; Food industries; FRIO; FROID; Fundamental and applied biological sciences. Psychology; HELIANTHUS ANNUUS; HUILE VEGETALE; Oils and fats; OPTICAL PROPERTIES; PLANT OILS; PROPIEDADES OPTICAS; PROPRIETE OPTIQUE; TEMPERATURA; TEMPERATURE; WAXES; Temperature; Vegetable fat; Optical properties; Content; Turbidity; Soybean oil; Physical properties; Wax; Beer haze; Sunflower oil; Wintering; Properties
• ISSN: 0003-021X; 1558-9331
• DOI: 10.1007/bf02679602

Turbidity in refined sunflowerseed oil, caused by the presence of waxes, is a frequent occurrence. As such, it is a special problem in a number of countries where clear packaging is used for this oil. The application of cold test for the determination of sunflowerseed oil clarity is not always satisfactory, as the negative cold test is not a guarantee that the waxes are completely removed and that the oil will remain clear for a longer period. In this study, the threshold value for wax content which would cause turbidity in refined sunflowerseed oil was determined. At the same time, the influence of cooling temperature and wax content on the visible turbidity appearance rate was investigated. The results show that the turbidity threshold for the cold test is 80 mg wax/kg oil, and that the rate of the visible turbidity appearance of the oil depends both on wax content and cooling temperature.