Utilization of watermelon pulp for lycopene extraction by response surface methodology.

Area of Science:

• Food Science and Technology
• Natural Product Chemistry
• Process Optimization

Background:

• Watermelon pulp is a rich source of lycopene, a potent antioxidant.
• Efficient extraction of lycopene is crucial for its utilization in food and pharmaceutical industries.
• Optimization of extraction parameters can significantly improve lycopene yield and purity.

Purpose of the Study:

• To optimize the lycopene extraction process from watermelon pulp.
• To determine the ideal conditions for maximizing lycopene yield.
• To apply response surface methodology for efficient extraction parameter determination.

Main Methods:

• Response surface methodology (RSM) was employed to optimize lycopene extraction.
• Independent variables included solvent/meal ratio, number of extractions, temperature, and extraction time.
• Experimental data were analyzed using a second-order model to predict optimal conditions.

Main Results:

• The optimal conditions for lycopene extraction were determined as a 10:1 solvent/meal ratio, four extractions, 50°C, and 16 minutes.
• The developed model showed a high coefficient of determination (R² = 0.986), indicating good prediction accuracy.
• Experimental validation confirmed the efficacy of the optimized extraction parameters.

Conclusions:

• Response surface methodology is an effective tool for optimizing lycopene extraction from watermelon pulp.
• The identified optimal conditions provide a robust protocol for maximizing lycopene recovery.
• This study contributes to the efficient utilization of watermelon by-products for lycopene production.