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Quinoa protein extract: an effective alternative for the fining of wine phenolics

Pino‐Ramos, Liudis L ; Peña‐Martínez, Paula A ; Laurie, V. Felipe

Journal of the science of food and agriculture, 2022-11, Vol.102 (14), p.6320-6327 [Periódico revisado por pares]

Chichester, UK: John Wiley & Sons, Ltd

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  • Título:
    Quinoa protein extract: an effective alternative for the fining of wine phenolics
  • Autor: Pino‐Ramos, Liudis L ; Peña‐Martínez, Paula A ; Laurie, V. Felipe
  • Assuntos: Catechin ; Cereals ; Color ; fining ; Gelatin ; Legumes ; Phenolic compounds ; phenolics ; Phenols ; Potatoes ; Proteins ; Quinoa ; quinoa protein ; red wine ; tannin ; Tannins ; Turbidity ; Wine ; Wines
  • É parte de: Journal of the science of food and agriculture, 2022-11, Vol.102 (14), p.6320-6327
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    USDOE
  • Descrição: BACKGROUND Lately, there has been an increasing interest in using plant‐derived proteins for wine phenolic fining. Proteins extracted from cereals, potatoes, and legumes have been proposed as effective fining agents, but only those from pea, wheat, and potatoes have been approved for their use in wine. This work aimed at determining the fining ability of quinoa (Chenopodium quinoa Willd.) protein extracts (QP), compared to commercial fining agents, on red wines. RESULTS The trials compared the performance of QP (30 and 50 g/hL), two potato protein extracts and gelatin, at two different contact times (48 and 96 h), using Petit Verdot, Malbec, and Cabernet Sauvignon wines. Turbidity, total phenolics, precipitable tannins, catechins, and color characteristics were determined. QP reduced the turbidity of all wines in a similar way to commercial fining agents. Both doses of QP significantly reduced tannins and other phenolic measures, including color intensity reductions, in a similar way to commercial fining agents. CONCLUSION QP behaved as an effective fining agent that deserves further studies in order to improve its performance and advance its characterization. © 2022 Society of Chemical Industry.
  • Editor: Chichester, UK: John Wiley & Sons, Ltd
  • Idioma: Inglês
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