A Narrative Review of the Sensory and Nutritional Challenges in the Development of Plant-based Meat Analogues View PDF

The development of plant-based meat analogues has garnered significant attention due to increasing consumer demand for sustainable, ethical, and health-conscious food options [1-7]. Central to this development are the sensory and nutritional challenges that must be addressed to produce products that closely mimic traditional meat in both appearance and health benefits. The literature highlights a multifaceted approach involving ingredient functionality, processing technologies, and consumer acceptance to overcome these challenges. One of the primary hurdles in creating convincing plant-based meat analogues is replicating the sensory attributes of animal meat, including texture, flavor, appearance, and mouthfeel [8-13]. Singh et al. [14] emphasize that recent advancements focus on utilizing vegetal proteins to develop novel foods that can emulate these sensory qualities. Similarly, Zhang et al. [15] discussed the importance of consumer acceptance, which hinges on the product’s ability to meet sensory expectations. The challenge lies in achieving a fibrous, meat-like texture, which is often difficult due to the inherent properties of plant proteins (Table 1).

The functionality of ingredients plays a crucial role in addressing these sensory challenges. Kyriakopoulou et al. [16] highlights that key ingredients such as proteins, fibers, and additives are essential for recreating the physical sensations associated with meat. They underline the importance of ingredient functionality, particularly in forming fibrous structures that resemble muscle tissues. Wang et al. [17] further elaborate on the importance of raw material formulation and processing strategies aimed at improving fiber structure formation, which is vital for mimicking the texture of meat. Processing technologies are equally critical in overcoming sensory limitations. Su et al. [18] review the technological challenges faced from the perspective of plant proteins, emphasizing the need for innovative processing methods to shape myofibril-like fibrous structures. Techniques such as extrusion, fermentation, and novel biotechnological approaches are being explored to enhance textural properties. Milcarz and Harasym [19] discuss the promising role of solid-state fermentation in improving the quality of plant-derived proteins, which can contribute to better texture and flavor profiles. These biotechnological interventions aim to produce more realistic meat analogues by modifying protein structures and reducing undesirable flavors.

Flavor development remains a significant challenge, particularly in eliminating off-flavors such as the beany taste often associated with legume proteins. Zhang et al. [15] note that consumer acceptance is heavily influenced by flavor, which must be carefully managed through processing and ingredient selection. The use of biotechnological methods, such as fermentation, has shown potential in mitigating these flavors, as highlighted by Milcarz and Harasym [19], who suggest that fermentation can modify flavor compounds and improve overall palatability. Nutritional equivalence is another critical aspect of plant-based meat analogue development. Mishal et al. [20] focus on formulating meat analogues with similar nutritional profiles to animal meat, emphasizing the importance of balancing macronutrients and essential amino acids. Da Silva et al. [21] further explores the potential of plant proteins, fibers, and antioxidant compounds to enhance the nutritional value of meat analogues. They stress that achieving a nutritionally complete product requires careful selection and processing of ingredients to ensure adequate protein quality and micronutrient content.

The incorporation of functional ingredients such as algae and grape pomace has been explored to enhance both nutritional and functional properties. Matos et al. [22] and Kur?ubi? et al. [23] discuss the potential of algae and grape pomace, respectively, in enriching plantbased products with bioactive compounds, antioxidants, and dietary fibers. These ingredients not only improve nutritional profiles but also contribute to the functional and sensory attributes of meat analogues. Consumer acceptance remains a pivotal factor influencing the success of plant-based meat analogues. Szenderák et al. [24] review consumer perceptions, noting that sensory attributes are among the most significant determinants of acceptance. Hassoun et al. [25] highlight that plant-based foods constitute the largest segment of alternative proteins, yet consumer preferences are shaped by sensory experiences, safety, and perceived health benefits. Therefore, technological innovations aimed at improving sensory qualities are essential for broader market adoption.

Advancements in evaluation methods are also crucial for ensuring product quality. Alam et al. [26] review cutting-edge technologies for assessing food safety, nutritional value, and sensory attributes, which are vital for refining plant-based meat analogue formulations. These evaluation techniques help identify areas needing improvement, ensuring that products meet consumer expectations and safety standards.

In summary, the development of plant-based meat analogues involves overcoming significant sensory and nutritional challenges. Achieving realistic texture and flavor requires sophisticated ingredient functionality and innovative processing technologies such as extrusion and fermentation. Nutritional adequacy demands careful formulation to match the macro- and micronutrient profiles of animal meat, often supplemented with functional ingredients like algae and grape pomace. Consumer acceptance hinges on the product’s sensory appeal, safety, and perceived health benefits, which are being addressed through technological advancements and comprehensive evaluation methods. As research progresses, integrating biotechnological approaches and functional ingredients will likely play a pivotal role in creating plant-based meat analogues that are both appealing and nutritionally complete, paving the way for sustainable and health-conscious food systems.