Valorization of Peach Fruit and Wine Lees through the Production of a Functional Peach and Grape Juice
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Publication date
2024-04-02ISSN
2304-8158
Abstract
The valorization of agri-food products not only represents important economic and environmental benefits but can also be a source of potentially profitable, functional, and safe ingredients.
This study aimed to valorize peach fruit and wine lees (WL) by producing functional juice. WL
were incorporated at different concentrations (1.5 and 2%; w:w) in unpasteurized peach and grape
juice and subsequently stored under refrigeration (5 ◦C). The antimicrobial activity of WL in peach
and grape juices was assessed against Listeria monocytogenes and Saccharomyces cerevisiae as well as
physicochemical, nutritional microbiological, and sensory acceptability. The maximum addition of
WL to the juice (2%) showed a significant inhibitory effect against L. monocytogenes (4-log reduction)
and increased the content of total soluble solids (TSS) (10%), total polyphenol content (TPC) (75%),
and total antioxidant activity (AOX) (86%). During storage, AOX, TPC, TSS, pH, and titratable acidity
(TA) remained stable. A significant correlation was observed between TPC and AOX. Total mesophilic
aerobic bacteria and yeast counts increased during storage. Fifty-seven percent of tasters (n = 26)
rated the functional juice positively. Thus, these agri-food products could be useful for producing
functional juices with a longer shelf life, contributing to their valorization.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
633 - Field crops and their production
Pages
22
Publisher
MDPI
Is part of
Foods
Citation
Prieto-Santiago, Virginia, Ingrid Aguiló-Aguayo, Francisca Isabel Bravo, Miquel Mulero, and Maribel Abadias. 2024. “Valorization of Peach Fruit and Wine Lees through the Production of a Functional Peach and Grape Juice.” MDPI. Multidisciplinary Digital Publishing Institute. April 2. https://www.mdpi.com/2304-8158/13/7/1095.
Grant agreement number
MICINN/Programa Estatal de generación del conocimiento y fortalecimiento científico y tecnológico del sistema I+D+I/PID2019-104269RR-C31/ES/Productos innovadores a base de frutas y uva para aumentar el consumo de frutas, promover la salud y reducir los residuos de alimentos/ALLFRUIT4ALL
MINECO/Programa Estatal de I+D+I orientada a los retos de la sociedad/RTC-2017-6044-2/ES/Desarrollo y validación de una bebida funcional para el control de la presión arterial/HYPERGRAPES
FEDER/ / /EU/ /
MINECO/Programa Estatal de promoción del talento y su empleabilidad en I+D+I/RYC-2016-19949/ES/ /
Program
Postcollita
This item appears in the following Collection(s)
- ARTICLES CIENTÍFICS [2756]
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/