Encarna Gómez-Plaza

Encarna Gómez-Plaza


Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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24 April 2024 in Foods
Verified
Journal Article
Open access
PDF file
PPPaula Pérez Porras
Paula Pérez Porras
ABAna Belén Bautista-Ortín
Ana Belén Bautista-Ortín
LMLeticia Martínez-Lapuente
Leticia Martínez-Lapuente
Zenaida Guadalupe MínguezZenaida Guadalupe Mínguez
Zenaida Guadalupe Mínguez
BABelén Ayestarán
Belén Ayestarán
EGEncarna Gómez-Plaza
Encarna Gómez-Plaza
The disruptive effect exerted by high-power ultrasound on grape cell walls enhances phenolic extraction, improving chromatic characteristics during red wine maceration. However, short maceration times may, sometimes, hinder this enhancement, and this effect could be attributed to the suspended cell wall material formation facilitated by sonication. This suspended material, having a strong affinity for phenolic compounds, can lead to their precipitation and elimination during subsequent vinification stages and, consequently, a significant portion of extracted phenolic compounds may not contribute to the final phenolic composition of the wine, impacting its chromatic features. To demonstrate this effect, sonicated grapes of two different varieties were vinified with No modified process that eliminated part of this suspended material. Results confirm our hypothesis; that is, the lack of positive outcomes in some cases is due to phenolic compound adsorption on suspended material.