| dc.creator | Riquelme, Sebastian | |
| dc.creator | Sáez, Vania | |
| dc.creator | Escobar, Danilo | |
| dc.creator | Vergara, Carola | |
| dc.creator | Fuentealba, Cecilia | |
| dc.creator | Bustamante, Luis | |
| dc.creator | Von Baer, Dietrich | |
| dc.creator | Jara, Paola | |
| dc.creator | Lamperti, Liliana | |
| dc.creator | Mardones, Claudia | |
| dc.date | 2019-07-25 | |
| dc.date.accessioned | 2019-11-13T15:11:54Z | |
| dc.date.available | 2019-11-13T15:11:54Z | |
| dc.identifier | http://www.jcchems.com/index.php/JCCHEMS/article/view/1206 | |
| dc.identifier.uri | https://revistaschilenas.uchile.cl/handle/2250/112755 | |
| dc.description | Dietary supplements have become the key to complement deficiencies in the occidental diet and therefore to reduce the incidence of oxidative stress related diseases. A bench-scale extraction procedure was studied to obtain a valuable product rich in phenolic compounds and antioxidant capacity from Pinot Noir grape cane enhanced by storage. Extraction solvent, cane-size, solid:liquid ratio, temperature, and extraction time, were systematically evaluated in order to obtain a natural functional product. Complete chemical characterization of a Pinot Noir grape cane extract produced under bench scale process is presented for the first time. Phenolic profiles of the extracts were characterized by HPLC-PDA-MS/MS and minerals by ICP-OES. Proteins, carbohydrates and lignins were also evaluated. The main phenolic compounds in the final product were stilbenoids, flavan-3-ols, procyanidins, and flavonols, with 6.53%, 4.84%, 2.11%, and 0.25%, respectively on a dry matter basis. Other chemical constituents were carbohydrates (27%), minerals (1%) and lignins (38.7%). The antioxidant capacity of the product was demonstrated using chemical assays (TEACABTS/CUPRAC and ORAC-FL) and endothelial cells model. The extract produced under the described bench scale process using grape cane enhanced by storage have a chemical composition and protecting capacities to be used in functional foods industry. | en-US |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | Sociedad Chilena de Química | en-US |
| dc.relation | http://www.jcchems.com/index.php/JCCHEMS/article/view/1206/310 | |
| dc.rights | Copyright (c) 2019 Journal of the Chilean Chemical Society | en-US |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/4.0 | en-US |
| dc.source | Journal of the Chilean Chemical Society; Vol 64 No 2 (2019): Journal of the Chilean Chemical Society | en-US |
| dc.source | 0717-9707 | |
| dc.source | 0717-9324 | |
| dc.subject | Stilbenoids | en-US |
| dc.subject | Procyanidins | en-US |
| dc.subject | Grape canes | en-US |
| dc.subject | Bench-scale extraction | en-US |
| dc.subject | Antioxidant capacity | en-US |
| dc.title | BENCH-SCALE EXTRACTION OF STILBENOIDS AND OTHER PHENOLICS FROM STORED GRAPE CANES (VITIS VINIFERA): OPTIMIZATION PROCESS, CHEMICAL CHARACTERIZATION, AND POTENTIAL PROTECTION AGAINST OXIDATIVE DAMAGE | en-US |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
