An effective ostrich oil bleaching technique using peroxide value as an indicator

Area of Science:

• Biochemistry
• Food Science
• Cosmetic Science

Background:

• Ostrich oil is widely used in cosmetics and pharmaceuticals.
• Rancidity negatively impacts ostrich oil quality, necessitating effective refining.
• Optimizing the bleaching process is crucial for therapeutic applications.

Purpose of the Study:

• To establish an effective method for bleaching crude ostrich oil.
• To identify optimal bleaching conditions using peroxide value as a refinement indicator.

Main Methods:

• Evaluation of natural earth clay, bentonite, and acid-activated clay for bleaching efficacy.
• Incubation of ostrich oil at 150°C for 1 hour.
• Comparison of nitrogen trap technique with continuous nitrogen flow.

Main Results:

• Natural earth clay demonstrated superior bleaching performance compared to bentonite and acid-activated clay.
• A 90% reduction in peroxide value was achieved after 1 hour of incubation at 150°C.
• The nitrogen trap technique proved as effective as continuous nitrogen flow and is more cost-effective.

Conclusions:

• Natural earth clay is an effective bleaching agent for ostrich oil.
• Optimized conditions (1 hour at 150°C) significantly reduce peroxide value.
• The nitrogen trap technique offers a cost-effective method for refining ostrich oil for therapeutic use.