Comparative analysis of microwave and ultrasound extraction techniques for valorizing almond milk byproducts

What if the leftover pulp from almond milk could be turned into a treasure trove of health-boosting compounds? A new study reveals that microwave extraction beats ultrasound in unlocking the hidden potential of almond okara.

Almond milk production leaves behind a nutrient-rich byproduct called okara, often discarded or underused. But this fibrous pulp is packed with bioactive compounds, especially polyphenols—natural antioxidants with potential health benefits. The challenge? Extracting them efficiently and sustainably.

Key Points

• Ultrasound beats conventional extraction for polyphenols.
• Microwave outperforms both, becoming the top method.
• Optimizing power, time, and ratio boosts yields.