Formulation development and characterization of plant-based alternatives to pâté using forest ingredients

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Abstract
Due to the expanding global population and environmental concerns about meat production from livestock, there is a great demand for alternative ingredients. Beech achene (BA) and sessile oak acorn (SOA) were recently proposed as protein- and carbohydrate-rich novel food ingredients. This study used their roasted kernels to develop and characterize four formulations of spreadable vegetable paste (with 10% BAK, 10% SOAK, 5% SOAK + 5% BAK, and control-just with roasted sunflower kernel). The substitution of sunflower kernel with 10% BAK caused a decrease in the energy value of vegetable paste, while 10% SOAK and 5% SOAK + 5% BAK, an increase. Syneresis was higher in formulations with forest ingredients, most notably in those containing BAK. The SOAK also caused a decrease in the pH of vegetable pastes that included it. All forest formulations had a large total colour difference compared to the control sample, driven by its intensity decrease (less in that with BAK than in the other two). The acceptance rate was reasonable for all formulations, although the overall score was significantly lower (slightly liked) in the vegetable paste formulated only with BAK than in the others (moderately liked); thus, the consumer’s purchase intention too (only 4.9% for that with 10% SOAK). Formulation with 10% BAK had a higher hardness, adhesiveness, gumminess, and chewiness than the others, while that with the 5% SOAK and 5% BAK mixture showed the most robust network structure. In conclusion, BA and SOA kernels are suitable for manufacturing plant-based alternatives to pâté if used in proper concentrations. Graphical abstract
Funding Information
  • Ministry of Research, Innovation and Digitization (PN–III–P2–2.1–PED–2019–5346)

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