Sensory features introduced by brewery spent grain with impact on consumers’ motivations and emotions for fibre-enriched products

Ana Curutchet, Maite Serantes, Carolina Pontet, Fatima Prisco, Patricia Arcia, Gabriel Barg, Juan Andres Menendez, Amparo Tárrega

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The aim of this work was both to formulate three different fibre-enriched products by the addition of Brewery Spent Grain (BSG), and to evaluate the impact of this fibre enrichment on sensory quality, acceptability, and purchase intention under blind conditions. BSG was incorporated into bread, pasta, and chocolate milk at levels of 8.3%, 2.8%, and 0.35% (w/w), respectively. The fibreenriched products and their regular counterparts were evaluated together by consumers through a CATA questionnaire, the EsSense 25 Profile, an overall acceptability rating, and a purchase intention ranking. Although fibre-enriched bread and chocolate milk ranked lower in overall acceptability compared with their counterparts, no significant difference was found for fibre-enriched pasta (p > 0.05). Purchase intention did not differ significantly for both bread and pasta (p > 0.05), yet the reasons for purchasing them differed significantly (p < 0.05). Consumers recognised the fibre enrichment in these two products and, therefore, were willing to partially compromise on sensory attributes. The fibre-enriched chocolate milk, nonetheless, scored significantly (p < 0.05) lower in purchase intention than the control. This work demonstrates that the effect of BSG addition is product-specific, and that fibre perception makes consumers feel more confident.

Original languageEnglish
Article number36
JournalFoods
Volume11
Issue number1
DOIs
StatePublished - Dec 2021

Keywords

  • Acceptability
  • BSG
  • Brewery
  • By-product
  • Sensory
  • Valorisation

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