In this study an artisanal “Porter style” beer has been enriched with diverse natural bioactive substances, following all-grain brewing method. Common beer generally contains a poor content of phenolic acids which confers a low antioxidant power and nutritional value, also due to the presence of ethanol. However in this work we aimed to enrich beer with different flavonoids and other food supplements like taurine, resveratrol and caffeine, thus enhancing its nutritional value and energizing properties. A series of flavonoid/phenol-enriched artisanal beers have been prepared, then sample of each has been tested in vitro to evaluate antioxidant activity, chelating power and enzymatic inhibition capacity. Beer samples were also analysed with HPLC-DAD system to determinate flavonoid and phenol contents. Results show increased nutritional values and significant antioxidant properties in comparison with not-fortified beer as control .

Artisanal fortified beers: brewing, enrichment, HPLC-DAD analysis and preliminary screening of antioxidant and enzymatic inhibitory activities

G. Scioli;A. Della Valle;M. Locatelli;A. Tartaglia;A. Cichelli;A. Stefanucci
;
A. Mollica
2022-01-01

Abstract

In this study an artisanal “Porter style” beer has been enriched with diverse natural bioactive substances, following all-grain brewing method. Common beer generally contains a poor content of phenolic acids which confers a low antioxidant power and nutritional value, also due to the presence of ethanol. However in this work we aimed to enrich beer with different flavonoids and other food supplements like taurine, resveratrol and caffeine, thus enhancing its nutritional value and energizing properties. A series of flavonoid/phenol-enriched artisanal beers have been prepared, then sample of each has been tested in vitro to evaluate antioxidant activity, chelating power and enzymatic inhibition capacity. Beer samples were also analysed with HPLC-DAD system to determinate flavonoid and phenol contents. Results show increased nutritional values and significant antioxidant properties in comparison with not-fortified beer as control .
File in questo prodotto:
File Dimensione Formato  
manuscript_draft R1.pdf

accesso aperto

Tipologia: Documento in Pre-print
Dimensione 555.07 kB
Formato Adobe PDF
555.07 kB Adobe PDF Visualizza/Apri
1-s2.0-S2212429222001808-main.pdf

Solo gestori archivio

Tipologia: PDF editoriale
Dimensione 1.28 MB
Formato Adobe PDF
1.28 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11564/777027
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 7
  • ???jsp.display-item.citation.isi??? 6
social impact