dc.creator | Idrovo Encalada, Alondra Mariela | |
dc.creator | Pérez, Carolina Daiana | |
dc.creator | Alzate Calderón, Paola Carolina | |
dc.creator | Zukowski, Enzo Fernando | |
dc.creator | Gerschenson, Lia Noemi | |
dc.creator | Rojas, Ana Maria Luisa | |
dc.creator | Fissore, Eliana Noemi | |
dc.date.accessioned | 2021-11-25T05:22:13Z | |
dc.date.accessioned | 2022-10-15T06:08:41Z | |
dc.date.available | 2021-11-25T05:22:13Z | |
dc.date.available | 2022-10-15T06:08:41Z | |
dc.date.created | 2021-11-25T05:22:13Z | |
dc.date.issued | 2019-09 | |
dc.identifier | Idrovo Encalada, Alondra Mariela; Pérez, Carolina Daiana; Alzate Calderón, Paola Carolina; Zukowski, Enzo Fernando; Gerschenson, Lia Noemi; et al.; High-power ultrasound pretreatment for efficient extraction of fractions enriched in pectins and antioxidants from discarded carrots (Daucus carota L.); Elsevier; Journal of Food Engineering; 256; 9-2019; 28-36 | |
dc.identifier | 0260-8774 | |
dc.identifier | http://hdl.handle.net/11336/147371 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/4353519 | |
dc.description.abstract | A useful pectin-enriched fraction (PEF) extracted through high-power-ultrasound (HPUS) pretreatment and sodium carbonate was efficiently obtained from discarded carrots. Formerly, the effect of HPUS-power intensity and time (A: 40 min-2.08 W/cm 2 ; B-E: 5–20 min ≈ 10 W/cm 2 ) on carrot powder (CP) used for PEF-isolation, was investigated. Reducing carbohydrates-, cell-wall neutral sugars- (NS), uronic acids- (UA) of pectins, and protein releases increased with HPUS-energy. CP had antioxidant capacity, containing α- and β-carotene, lutein, α-tocopherol. Only HPUS B-E treatments (≈10 W/cm 2 ) were capable to produce matrix disruption, promoting polymers’ release. CP pretreated through selected E-treatment (20 min; ≈10 W/cm 2 ) followed by 0.1M-Na 2 CO 3 (1 h-stirring) extracted the whole pectin content of CP (UA = 14.0%). PEFs were orange, with co-extracted antioxidants. More substituted (1.27 NS/UA ratio) three lower molecular weights’ components of HPUS-PEF produced higher Newtonian viscosity before shear-thinning, and calcium-crosslinked gels with lower elastic modulus (G’ = 12Pa). Sustainable HPUS/Na 2 CO 3 method isolated efficiently an antioxidants-carrying PEF useful as functional food additive. | |
dc.language | eng | |
dc.publisher | Elsevier | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0260877419300998 | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.jfoodeng.2019.03.007 | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.subject | ALPHA-TOCOPHEROL | |
dc.subject | CALCIUM-CROSSLINKED GELS | |
dc.subject | CAROTENES | |
dc.subject | DISCARDED CARROTS | |
dc.subject | POWER INTENSITY | |
dc.subject | ULTRASOUND-EXTRACTED PECTIN-FRACTION | |
dc.title | High-power ultrasound pretreatment for efficient extraction of fractions enriched in pectins and antioxidants from discarded carrots (Daucus carota L.) | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:ar-repo/semantics/artículo | |
dc.type | info:eu-repo/semantics/publishedVersion | |