Phenols recovered from olive mill wastewater as natural booster to fortify blood orange juice.
Food Chem
; 393: 133428, 2022 Nov 01.
Article
en En
| MEDLINE
| ID: mdl-35696952
ABSTRACT
In the present study, a tangential membrane filtration system was applied to recover phenols from olive mill wastewater. The obtained concentrates were characterised for physico-chemical traits, antioxidant activity and antimicrobial effects. Results indicated that the highest concentration of hydroxytyrosol (7203.7 mg/L) was detected in the concentrate obtained by reverse osmosis, which also showed the highest antioxidant and antimicrobial activity. Moreover, the same concentrate was added, at different ratio, up to 4250 v/v, into a commercial blood orange juice. The fortified juice with the addition of the concentrate, up to 2250 v/v ratio, did not show off-flavour and off-odour compared to the control. Furthermore, after 60 days of refrigerated storage, the fortified juice exhibited a hydroxytyrosol content still complying with the daily intake recommended by EFSA health claim. The obtained results can be industrially useful in producing orange juice added with a natural antioxidant concentrate as a 'clean label' ingredient.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Olea
/
Citrus sinensis
/
Antiinfecciosos
Idioma:
En
Revista:
Food Chem
Año:
2022
Tipo del documento:
Article