Plant-based fish analogues vs. fish: Assessment of consumer perception, acceptance, and attitudes

Abstract

Plant-based fish is developed to mimic the taste, texture, and appearance of fish. Despite being the fastest-growing segment in plant-based analogues sales, it remains a niche product due to several hindrances, including sensory and nutritional issues. This study assessed consumer perception, attitudes and acceptance drivers of plant-based canned tuna involving 165 consumers who evaluated for liking and described through the Check-All-That-Apply method five plant-based and three animal-based samples. Consumers’ food neophobia level, food related lifestyles and food frequency consumption of a series of plant-based and animal-based products were investigated as potential explanatory variables in drivers of acceptance. Generalised linear models showed that plant-based samples scored very low (<40 VAS score), while animal-based products were well accepted (63.6 – 75.2). Principal Coordinate Analysis revealed that pink colour, tuna/fish flavour, and dryness characterised tuna samples and contributed positively to liking, while unappealing appearance, off-flavour, legume/vegetable flavour, bitterness, gelatinous and gumminess, characterised plant-based samples and contributed negatively to liking. Agglomerative hierarchical analysis identified two consumer clusters differing in liking for plant-based fish analogues. One cluster (27 % of consumers) showed significantly higher liking scores for all plant-based samples, a higher consumption of plant-based analogues and seemed more careful when buying food, both regarding its nutritional composition and its naturalness than the other cluster. This study suggests that the exploitation of plant-based ingredients (textured soy, pea and wheat proteins) affects all sensory dimensions of plant-based canned tuna and highlights the importance of sensory optimisation in the development of plant-based alternatives to meet consumer preferences.