Optimizing Chickpea Cooking Water (Aquafaba): Enhancing Superior Foaming and Emulsifying Properties Through Concentration Protocols

Aquafaba, the viscous liquid obtained from cooking chickpeas, has gained significant attention in the food industry due to its remarkable foaming and emulsifying properties, positioning it as a promising plant-based alternative to egg whites. This study investigated the effects of reheating on aquafaba’s functional properties, with a focus on its compositional concentration and molecular structural changes. Reheating was found to enhance both foaming and emulsifying capacities, with the most favorable results observed when the remaining liquid ratio was adjusted to 70–50%. Detailed molecular size analysis identified proteins and carbohydrates in the 30–100 kDa range as critical contributors to foam formation and stability. Furthermore, enzymatic treatments revealed that the synergistic interactions between proteins, pectins, and carbohydrates are key to aquafaba’s multifunctionality, enabling it to replicate the desirable properties of egg whites in various food applications. These findings not only advance our understanding of aquafaba’s molecular mechanisms but also demonstrate the potential of reheating as a practical strategy to optimize its properties for a wider range of culinary and industrial uses. This study underscores aquafaba’s versatility and highlights its role as a sustainable, plant-based ingredient capable of meeting the growing demand for vegan and allergen-free food products.