Structural and mechanical anisotropy in plant-based meat analogues

Area of Science:

• Food Science and Technology
• Materials Science
• Biotechnology

Background:

• Growing demand for plant-based meat alternatives necessitates understanding their structure-property relationships.
• Consumer acceptance hinges on mimicking the texture of traditional animal meat.
• Sustainable food production requires effective texturization of plant proteins.

Purpose of the Study:

• To investigate the correlation between structural and mechanical anisotropy in plant-based meat analogues.
• To understand how processing parameters and protein content influence meat analogue texture.
• To provide insights for developing plant-based meats that closely resemble animal meat.

Main Methods:

• High moisture extrusion cooking was used to produce plant-based meat analogues.
• Scanning small-angle X-ray scattering (sSAXS) and scanning electron microscopy (SEM) analyzed structure.
• Tensile and dynamic mechanical testing evaluated mechanical properties.

Main Results:

• Structural and mechanical anisotropy were observed in the meat analogues.
• Anisotropy indexes increased with higher protein content.
• Texture and structure were directly linked to mechanical properties.

Conclusions:

• Plant-based meat analogue anisotropy can be tuned by adjusting protein content.
• Findings enable the development of meat analogues with desired textures.
• This research supports sustainable dietary shifts while maintaining eating habits.