LAPSE:2020.0990
Published Article
LAPSE:2020.0990
Valorization of Globe Artichoke (Cynara scolymus) Agro-Industrial Discards, Obtaining an Extract with a Selective Effect on Viability of Cancer Cell Lines
September 23, 2020
Globe artichoke (Cynara scolymus L.) is considered one of the most significant sources of phenolic antioxidants in nature. However, more than 60% of its total volume is discarded for consumption purposes, making available an abundant, inexpensive and profitable source of natural antioxidants in the discarded fractions. Polyphenolic antioxidants from a South American variety of artichoke agro-industrial discards (external bracts and stems) were obtained by mild extraction processes. Best results were achieved at 40 °C, 75% of ethanol and 10 min of reaction, obtaining 2.16 g gallic acid equivalent (GAE)/100 g of total phenolic compounds (TPC) and 55,472.34 µmol Trolox equivalent (TE)/100 g of antioxidant capacity (oxygen radical absorbance capacity (ORAC)). High-performance liquid chromatography (HPLC) analyses determined that caffeoylquinic acids comprise up to 85% of the total polyphenolic content, and only around 5% are flavonoids. Inulin content in the artichokes residues was recovered (48.4% dry weight (dw)), resulting in an extract with 28% of inulin in addition to the aforementioned antioxidant capacity. The artichoke discard extract in a concentration of 500 mg/L produced a strong decrease in Caco-2 and MCF-7 cancer cell lines viability, whereas healthy fibroblasts maintained their viability when the extract was concentrated at 1500 mg/L. These results suggest that the artichoke extract presents a good anti-proliferative potential effect on Caco-2 and MCF-7 cells.
Record ID
Keywords
antioxidant activity, artichoke discards, Caco-2, inulin, MCF-7, polyphenols
Suggested Citation
Noriega-Rodríguez D, Soto-Maldonado C, Torres-Alarcón C, Pastrana-Castro L, Weinstein-Oppenheimer C, Zúñiga-Hansen ME. Valorization of Globe Artichoke (Cynara scolymus) Agro-Industrial Discards, Obtaining an Extract with a Selective Effect on Viability of Cancer Cell Lines. (2020). LAPSE:2020.0990
Author Affiliations
Noriega-Rodríguez D: Departamento de Química Analítica y Alimentaria, Universidade de Vigo, Circunvalación ao Campus Universitario, 36310 Vigo, Pontevedra, Spain
Soto-Maldonado C: Centro Regional de Estudios en Alimentos Saludables, Av. Universidad 330, Curauma-Placilla, Valparaíso 2373223, Chile [ORCID]
Torres-Alarcón C: Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, Av. Brasil 2085, Valparaíso 2362803, Chile
Pastrana-Castro L: International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal
Weinstein-Oppenheimer C: Escuela de Química y Farmacia, Facultad de Farmacia, Universidad de Valparaíso, Av. Gran Bretaña 1093, Valparaíso 2360102, Chile
Zúñiga-Hansen ME: Centro Regional de Estudios en Alimentos Saludables, Av. Universidad 330, Curauma-Placilla, Valparaíso 2373223, Chile; Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, Av. Brasil 2085, Valparaíso 2362803, Chile
Soto-Maldonado C: Centro Regional de Estudios en Alimentos Saludables, Av. Universidad 330, Curauma-Placilla, Valparaíso 2373223, Chile [ORCID]
Torres-Alarcón C: Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, Av. Brasil 2085, Valparaíso 2362803, Chile
Pastrana-Castro L: International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal
Weinstein-Oppenheimer C: Escuela de Química y Farmacia, Facultad de Farmacia, Universidad de Valparaíso, Av. Gran Bretaña 1093, Valparaíso 2360102, Chile
Zúñiga-Hansen ME: Centro Regional de Estudios en Alimentos Saludables, Av. Universidad 330, Curauma-Placilla, Valparaíso 2373223, Chile; Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, Av. Brasil 2085, Valparaíso 2362803, Chile
Journal Name
Processes
Volume
8
Issue
6
Article Number
E715
Year
2020
Publication Date
2020-06-20
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr8060715, Publication Type: Journal Article
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LAPSE:2020.0990
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doi:10.3390/pr8060715
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Version History
[v1] (Original Submission)
Sep 23, 2020
Verified by curator on
Sep 23, 2020
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v1
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https://psecommunity.org/LAPSE:2020.0990
Original Submitter
Calvin Tsay
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