Journal
FOODS
Volume 11, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/foods11091280
Keywords
faba bean protein isolate; faba bean protein concentrate; high moisture extrusion; fibrous protein structure; meat analogue
Categories
Funding
- Strategic Research Council at the Academy of Finland [327698]
- Academy of Finland (AKA) [327698, 327698] Funding Source: Academy of Finland (AKA)
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This study found that using faba bean protein ingredients can produce meat analogues with a fibrous structure. Increasing the content of faba bean protein isolate (FPI) increases the hardness, gumminess, chewiness, and cutting strength of the meat analogues, resulting in darker color and decreased water absorption capacity. Increased feed water content (FWC) has a weaker and opposite effect on these properties.
Faba bean is a potential ingredient due to its high protein yield and its possible cultivation in colder climate regions. In this study, meat analogues made from faba bean protein isolate (FPI) and concentrate (FPC) blends were produced using high moisture extrusion. The aim of this study was to investigate the effect of the FPI content (FPIc), feed water content (FWC), and temperature of the long cooling die (LT) during extrusion on the mechanical and physicochemical properties as well as on the structure of the meat analogues. Increased FPIc resulted in higher values in hardness, gumminess, chewiness, and cutting strengths as well as in darker colour and decreased water absorption capacity. The effect of increased FWC on these properties was weaker and the opposite. Images from microtomography revealed that higher FPIc led to a less organised fibrous structure. In conclusion, fibrous structures can be achieved by utilising a mixture of faba bean protein ingredients, and a higher FPC content seemed to promote fibre formation in the meat analogue.
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