Towards the Optimization of Microwave-Assisted Extraction and the Assessment of Chemical Profile, Antioxidant and Antimicrobial Activity of Wine Lees Extracts.
2022
Autori:
Tagkouli, DimitraTsiaka, Thalia
Kritsi, Eftichia
Soković, Marina
Sinanoglou, Vassilia J.
Lantzouraki, Dimitra Z.
Zoumpoulakis, Panagiotis
Tip dokumenta:
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
Wine lees, a sub-exploited byproduct of vinification, is considered a rich source of bioactive compounds, such as (poly)phenols, anthocyanins and tannins. Thus, the effective and rapid recovery of these biomolecules and the assessment of the bioactive properties of wine lees extracts is of utmost importance. Towards this direction, microwave-assisted extraction (MAE) factors (i.e., extraction time, microwave power and solvent/material ratio) were optimized using experimental design models in order to maximize the (poly)phenolic yield of the extracts. After optimizing the MAE process, the total phenolic content (TPC) as well as the antiradical, antioxidant and antimicrobial activity of the extracts were evaluated. Furthermore, Fourier transform infrared spectroscopy (FTIR) was employed to investigate the chemical profile of wine lees extracts. Red varieties exhibited higher biological activity than white varieties. The geographical origin and fermentation stage were also considered as critical factors. The white variety Moschofilero presented the highest antioxidant, antiradical and antimicrobial activity, while Merlot and Agiorgitiko samples showed noteworthy activities among red varieties. Moreover, IR spectra confirmed the presence of sugars, amino acids, organic acids and aromatic compounds. Thus, an efficient, rapid and eco-friendly process was proposed for further valorization of wine lees extracts.
Ključne reči:
Antimicrobial activity; Antiradical activity; Design of experiment (DoE); Infrared (IR) spectroscopy; Microwave-assisted extraction (MAE); Phenolic compounds; Wine leesIzvor:
Molecules (Basel, Switzerland), 2022, 27, 7, 2189-
DOI: 10.3390/molecules27072189
ISSN: 1420-3049
PubMed: 35408586
WoS: 000780675900001
Scopus: 2-s2.0-85127846695
URI
https://www.mdpi.com/1420-3049/27/7/2189http://www.ncbi.nlm.nih.gov/pubmed/35408586
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=PMC9000764
http://radar.ibiss.bg.ac.rs/handle/123456789/4951