Sesame oil (til oil) is prized for its flavour and is used both as a cooking oil and a specialty oil. Refined sesame oil grades require careful bleaching to reduce colour and impurities. This guide outlines how activated bleaching earth is applied.
Sesame Oil's Bleaching Needs
Crude sesame oil contains pigments, phospholipids and oxidation products. Refined grades need these reduced to achieve a light colour and stable product. Activated bleaching earth adsorbs the colour bodies and residual phospholipids after degumming and neutralisation.
Dosage Guidance
Sesame oil typically uses 0.6–1.5% bleaching earth depending on crude quality and the grade being produced. Bleach Master's high surface area supports efficient colour removal at controlled dosage.
Antioxidant Considerations
Sesame oil naturally contains antioxidants (sesamol, sesamin) that contribute to its stability. Bleaching is managed to remove impurities and trace metals without unnecessary over-processing, balancing clarity against the oil's natural robustness.
Filtration and Yield
Consistent bleaching earth gives clean, fast filtration and low oil retention, protecting yield in this higher-value oil.
Consistent Supply
Umiya Minerals supplies Bleach Master to sesame oil processors with reliable, batch-controlled quality.
Frequently Asked Questions
How much bleaching earth does sesame oil need?
Usually 0.6–1.5% by weight of oil, depending on crude colour and grade. A high-activity earth keeps dosage and oil losses low.
Does bleaching reduce sesame oil's natural antioxidants?
Bleaching targets colour bodies, phospholipids and trace metals. With controlled dosage, the oil's natural antioxidant content is largely preserved; excessive over-bleaching should be avoided.
What conditions are used to bleach sesame oil?
Typically 90–105°C under vacuum for 20–30 minutes, adjusted to the grade and crude quality.
Is the same bleaching earth suitable for sesame and other oils?
Yes. A quality activated bleaching earth works across sesame and other edible oils with appropriate dosage adjustments.
Need Activated Bleaching Earth for Your Refinery?
Contact Umiya Minerals for product samples, technical data sheets, and bulk pricing. We supply pan-India from Bhuj, Gujarat.