cdso specification

Crude degummed soybean oil is a crucial intermediate product in the soybean oil refining process.

CDSO

Crude degummed soybean oil specification:

Physical Characteristics:

Appearance: Clear, light yellow liquid

Odor: Neutral

Taste: Neutral 

Chemical Characteristics:

Free Fatty Acid (as oleic acid): Maximum 1.25%

Moisture and Impurities: Maximum 0.1%

Phosphorus Content: Maximum 200 ppm

Un-saponifiable Matter: Maximum 1.5%

Fatty Acid Composition:

Saturated Fatty Acids: Maximum 15%

Monounsaturated Fatty Acids (MUFA): Around 24% - 30%

Polyunsaturated Fatty Acids (PUFA): Around 55% - 62%

Impurities:

Insoluble Impurities: Maximum 0.05%

Lecithin Content: Typically around 2.5% - 3.5%

Other Characteristics:

Iodine Value: 120 - 143

Density: Approximately 0.918 - 0.922 g/cm³ at 25°C

Refractive Index: Around 1.470 - 1.475 at 25°C

Flash Point: Minimum 250°C 

Grading specifications for crude degummed soybean oil (CDSO) can vary depending on industry standards and specific requirements. Here's a typical grading specification for CDSO:

Grade A: High-Quality CDSO

Free Fatty Acid (as oleic acid): ? 0.5%

Moisture and Impurities: ? 0.1%

Phosphorus Content: ? 10 ppm

Un-saponifiable Matter: ? 0.5%

Lecithin Content: ? 2%

Fatty Acid Composition:

Saturated Fatty Acids: ? 10%

Monounsaturated Fatty Acids (MUFA): 20% - 25%

Polyunsaturated Fatty Acids (PUFA): 60% - 65%

Other Characteristics:

Iodine Value: 120 - 140

Density: 0.918 - 0.922 g/cm³ at 25°C

Refractive Index: 1.470 - 1.474 at 25°C

Flash Point: ? 250°C

Grade B: Standard Quality CDSO

Free Fatty Acid (as oleic acid): ? 1%

Moisture and Impurities: ? 0.3%

Phosphorus Content: ? 20 ppm

Un-saponifiable Matter: ? 1%

Lecithin Content: ? 3%

Fatty Acid Composition:

Saturated Fatty Acids: ? 12%

Monounsaturated Fatty Acids (MUFA): 18% - 24%

Polyunsaturated Fatty Acids (PUFA): 58% - 64%

Other Characteristics:

Iodine Value: 110 - 130

Density: 0.917 - 0.923 g/cm³ at 25°C

Refractive Index: 1.468 - 1.476 at 25°C

Flash Point: ? 240°C

Grade C: Lower Quality CDSO

Free Fatty Acid (as oleic acid):> 1%

Moisture and Impurities: > 0.3%

Phosphorus Content: > 20 ppm

Un-saponifiable Matter: > 1%

Lecithin Content: > 3%

Fatty Acid Composition:

Saturated Fatty Acids: > 12%

Monounsaturated Fatty Acids (MUFA): < 18%

Polyunsaturated Fatty Acids (PUFA): < 58%

Other Characteristics:

Iodine Value: < 110

Density: > 0.917 g/cm³ at 25°C

Refractive Index: < 1.468 at 25°C

Flash Point: < 240°C

Conclusion

 It combines the benefits of crude soybean oil with improved stability due to the removal of phospholipids. Its versatility makes it valuable in both food and industrial applications. As with any agricultural product, considerations around allergens, processing, and sustainability are important for consumers and manufacturers.