In the sports protein beverage market, the demand for plant-based substitutes is rising. Sunflower press-cake, a protein-rich by-product, offers a compelling alternative to traditional options like soy, pea, or rice proteins. With its natural allergen-free composition, sunflower proteins are suitable for individuals with soy or nut allergies, broadening the market of allergen-free protein products. This study focuses on the characterisation of micronized dehulled sunflower press-cake (DSPC) and preliminary explores its valorization in a protein-rich beverage. Micronization treatment was applied to the DSPC, since the reduction in particle size positively influences sensory attributes. The comprehensive analysis of micronized industrial DSPC revealed a high protein content (44.35 g/100 gDB), elevated polyphenol levels (33.75 mgGAE/gDB) and positive outcomes in water and oil holding capacities. However, proteins showed low in vitro digestibility (42.82%) and poor solubility (~10%). Additionally, the high phytate content (5.00 g/100 g) prompted consideration for nutritional implications, whether positive or negative. From the analysis of the volatile profile, the diverse array of compounds revealed the absence of off-odours typically formed during autoxidation. In view of the potential application within a functional beverage formulation intended for athletes, four aqueous dispersions, featuring two different percentages of micronized DSPC (25% and 16% w/v) and pH levels (6.5 and 3.5), were prepared and tested for rheological properties.

Unveiling the potential of micronized dehulled sunflower presscake: a breakthrough in sustainable plant-based protein-rich sport beverages / F. Girotto, M. Merlino, G. Giovanelli, C. Condurso, L. Piazza. - In: INTERNATIONAL JOURNAL OF FOOD SCIENCE & TECHNOLOGY. - ISSN 0950-5423. - (2024), pp. 1-13. [Epub ahead of print] [10.1111/ijfs.17208]

Unveiling the potential of micronized dehulled sunflower presscake: a breakthrough in sustainable plant-based protein-rich sport beverages

F. Girotto
Primo
;
G. Giovanelli;L. Piazza
Ultimo
2024

Abstract

In the sports protein beverage market, the demand for plant-based substitutes is rising. Sunflower press-cake, a protein-rich by-product, offers a compelling alternative to traditional options like soy, pea, or rice proteins. With its natural allergen-free composition, sunflower proteins are suitable for individuals with soy or nut allergies, broadening the market of allergen-free protein products. This study focuses on the characterisation of micronized dehulled sunflower press-cake (DSPC) and preliminary explores its valorization in a protein-rich beverage. Micronization treatment was applied to the DSPC, since the reduction in particle size positively influences sensory attributes. The comprehensive analysis of micronized industrial DSPC revealed a high protein content (44.35 g/100 gDB), elevated polyphenol levels (33.75 mgGAE/gDB) and positive outcomes in water and oil holding capacities. However, proteins showed low in vitro digestibility (42.82%) and poor solubility (~10%). Additionally, the high phytate content (5.00 g/100 g) prompted consideration for nutritional implications, whether positive or negative. From the analysis of the volatile profile, the diverse array of compounds revealed the absence of off-odours typically formed during autoxidation. In view of the potential application within a functional beverage formulation intended for athletes, four aqueous dispersions, featuring two different percentages of micronized DSPC (25% and 16% w/v) and pH levels (6.5 and 3.5), were prepared and tested for rheological properties.
By-product upcycling; dehulled sunflower press-cake; micronization; plant proteins; sport beverages; sustainable nutrition
Settore AGR/15 - Scienze e Tecnologie Alimentari
   ON Foods - Research and innovation network on food and nutrition Sustainability, Safety and Security – Working ON Foods
   ON Foods
   MINISTERO DELL'UNIVERSITA' E DELLA RICERCA
2024
23-mag-2024
Article (author)
File in questo prodotto:
File Dimensione Formato  
Girotto et al. 2024.pdf

accesso riservato

Descrizione: Original Article
Tipologia: Publisher's version/PDF
Dimensione 355.33 kB
Formato Adobe PDF
355.33 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/1052890
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact