Cholesterol Removal from Whole Egg by Crosslinked β-Cyclodextrin

Area of Science:

• Food Science
• Biochemistry
• Chemical Engineering

Background:

• High cholesterol content in eggs poses health concerns.
• Beta-cyclodextrin (β-CD) is a potential agent for cholesterol complexation.
• Optimizing β-CD application and recyclability is crucial for practical use.

Purpose of the Study:

• To optimize cholesterol removal from whole eggs using crosslinked β-CD.
• To investigate the recyclability and efficiency of the crosslinked β-CD over multiple cycles.

Main Methods:

• Optimization of parameters including β-CD concentration, temperature, time, mixing speed, and centrifugation speed.
• Testing the efficacy of the optimized conditions for cholesterol removal.
• Evaluating the yield and cholesterol removal efficiency during repeated recycling of β-CD.

Main Results:

• Optimal cholesterol removal conditions identified: 25% crosslinked β-CD, 40°C, 30 min, 1,200 rpm, and 2,810×g centrifugation.
• Achieved 92.76% cholesterol removal under optimal conditions.
• Crosslinked β-CD maintained over 80% removal efficiency for up to three recycling cycles, with yields between 86.66% and 87.60%.

Conclusions:

• Crosslinked β-CD is an effective agent for significant cholesterol reduction in whole eggs.
• Recycling of crosslinked β-CD is feasible but limited due to interactions with egg proteins, impacting long-term efficiency.