RT journal article
T1 Profiling the Volatile and Non-Volatile Compounds along with the Antioxidant Properties of Malted Barley
A1 El Mansouri, Fouad
A1 El Farissi, Hammadi
A1 Cacciola, Francesco
A1 Esteves da Silva, Joaquim C. G.
A1 Palma Lovillo, Miguel
A1 El Majdoub, Yassine Oulad
A1 Trovato, Laura
A1 Mondello, Luigi
A1 Khaddor, Mohamed
A1 Brigui, Jamal
A2 Química Analítica
K1 GC–MS
K1 HPLC–MS analysis
K1 fermentation
K1 malted barley seeds
K1 antioxidant activity
AB In this work, the stability of antioxidant compounds in malting barley seeds before and after the production of the final products is reported. In this reflection, the findings revealed that the process of fermentation had a significant impact on antioxidant activity. In vitro, antioxidant capacities were evaluated using DPPH free radical scavenging assay. The results obtained from the spectrophotometric analysis showed that the lowest inhibition value was observed in the samples that were obtained by the classical fermentation process (ABC) and the samples of non-alcoholic beer obtained by the thermal process (NABT), with free radical inhibition capacity values of 8.50% and 5.50%, respectively. The samples of hopped wort (HW) and malted barley seeds extract (BSE) showed very high antioxidant activity with free radical inhibition capacity of 14% and 12.60%, respectively. The obtained extracts were analyzed by gas chromatography and high-performance liquid chromatography, both combined with mass spectrometry detection (GC-MS, HPLC-MS). GC-MS analysis of the SPME extraction showed the presence of 29 compounds with isopentyl alcohol in major concentration (18.19%) in the alcoholic beer; on the other hand, the HPLC-DAD-ESI/MS analysis of the ethyl acetate extract showed the presence of 13 phenolic compounds. Interestingly, the degradation of 3-Hydroxyphloretin 2'-O-glucoside in the final products of the non-alcoholic beers was found. Finally, the FTIR analysis was also employed in order to detect the type of efficient groups present in the extracts.
PB MDPI
SN 2297-8739
YR 2022
FD 2022-05
LK http://hdl.handle.net/10498/27232
UL http://hdl.handle.net/10498/27232
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 13-nov-2026