2024 journal article

Colloidal and interfacial properties of spray dried pulse protein-blueberry polyphenol particles in model dispersion systems

FOOD CHEMISTRY, 457.

By: Y. Lin n, N. Cheng n, Y. Jiang n, M. Grace n, M. Lila n, R. Hoskin n, H. Zheng n

author keywords: Protein-polyphenol interactions; Pulse protein; Food ingredients; Functionality
Source: Web Of Science
Added: November 12, 2024

The phytochemical composition and physicochemical attributes of polyphenol-enriched protein particle ingredients produced with pulse proteins (e.g. chickpea protein, pea protein, and a chickpea-pea protein blend) and polyphenols recovered from wild blueberry pomace were investigated for colloidal and interfacial properties. Anthocyanins were the major polyphenol fraction (27.74-36.47 mg C3G/g) of these polyphenol-rich particles (44.95-62.08 mg GAE/g). Dispersions of pea protein-polyphenol particles showed a superior phase stability before and after heat treatment compared to the chickpea pea protein-polyphenol system. This observation was independent of the added amount of NaCl in the dispersion. In general, at quasi equilibrium state, pulse protein-polyphenol particles and parental pulse protein ingredients showed similar oil-water interfacial tension. However, pea protein-polyphenol particles demonstrated a reduced diffusion-driven oil-water interfacial adsorption rate constant compared to the parental pea protein ingredient. Overall, the obtained results suggest application potential of pea protein-polyphenol particles as a functional food/beverage ingredient.