Jaime Ortíz

ORCID: 0000-0002-4176-9065
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About
Contact & Profiles
Research Areas
  • Meat and Animal Product Quality
  • Edible Oils Quality and Analysis
  • Aquaculture Nutrition and Growth
  • Seaweed-derived Bioactive Compounds
  • Phytochemicals and Antioxidant Activities
  • Antioxidant Activity and Oxidative Stress
  • Postharvest Quality and Shelf Life Management
  • Water Resource Management and Quality
  • Protein Hydrolysis and Bioactive Peptides
  • Echinoderm biology and ecology
  • Plant Physiology and Cultivation Studies
  • Free Radicals and Antioxidants
  • Food Chemistry and Fat Analysis
  • Phase Equilibria and Thermodynamics
  • Essential Oils and Antimicrobial Activity
  • Turtle Biology and Conservation
  • Food Industry and Aquatic Biology
  • Plant and soil sciences
  • Magnetic and Electromagnetic Effects
  • Horticultural and Viticultural Research
  • Algal biology and biofuel production
  • Environmental and Cultural Studies in Latin America and Beyond
  • Potato Plant Research
  • Moringa oleifera research and applications
  • Fatty Acid Research and Health

University of Chile
2015-2025

Perot Museum of Nature and Science
2015-2017

Universidad del Valle
2003-2015

Universidad Surcolombiana
2015

Universidad de Santiago de Chile
2013

Universidad Politécnica de Madrid
2011

Abstract The nutritional composition of the edible seaweeds Codium fragile , Gracilaria chilensis and Macrocystis pyrifera was determined, including amino acid fatty contents along with tocol carotenoid contents. results indicated that three algae C. G. M. showed a high range protein (13.7–10.8%), (1879.6–1417.7 mg/100 g dry algae) low content in lipids (0.7–15.0%). most abundant acids were linolenic, oleic, linoleic acid. δ‐Tocopherol α‐tocopherol (677.8 453.5 µg/g lipid, respectively)...

10.1002/ejlt.200800140 article EN European Journal of Lipid Science and Technology 2009-01-20

Abstract For many marine species, locations of key foraging areas are not well defined. We used satellite telemetry and switching state‐space modeling ( SSM ) to identify distinct by Kemp's ridley turtles Lepidochelys kempii tagged after nesting during 1998–2011 at Padre Island National Seashore, Texas, USA PAIS ; N = 22), Rancho Nuevo, Tamaulipas, Mexico RN 9). Overall, traveled a mean distance 793.1 km (±347.8 SD) sites, where 24 31 showed area fidelity (FAF) over time 22 in , 2 Mexico)....

10.1002/ece3.594 article EN cc-by Ecology and Evolution 2013-05-28

'Hass' avocado is the most important variety cultivated worldwide. In Chile alone, there are nearly 40,000 ha, distributed between IV and VI regions, with production areas located close to both coast hills. Given increasing competitiveness of fruit export markets, quality organoleptic attributes a key issue in consumer acceptance. The avocados related many attributes, especially oil content firmness (among others), these influenced by storage, growing environmental conditions, as well stage...

10.1016/j.sajb.2015.10.006 article EN cc-by South African Journal of Botany 2016-01-27

For many marine species, locations of migratory pathways are not well defined. We used satellite telemetry and switching state-space modeling (SSM) to define the corridor by Kemp's ridley turtles (Lepidochelys kempii) in Gulf Mexico. The were tagged after nesting at Padre Island National Seashore, Texas, USA from 1997 2014 (PAIS; n = 80); Rancho Nuevo, Tamaulipas, Mexico 2010 2011 (RN; 14); Tecolutla, Veracruz, 2012 2013 (VC; 13); Shores, Alabama, during (GS; 1). lies nearshore waters with...

10.1016/j.biocon.2015.12.014 article EN cc-by-nc-nd Biological Conservation 2015-12-29

Pumpkin seeds are often discarded due to limited awareness of their benefits, yet they yield an oil rich in monounsaturated, polyunsaturated, and saturated fatty acids, with notable levels oleic acid (>30 %) linoleic (>50 %). The also contains nutritionally valuable unsaponifiable components, qualifying it as a functional food. Culinary ingredients like merkén clove, used various dishes, offer additional properties. This study examines the effect heat treatment on profile oxidative stability...

10.1016/j.fochx.2025.102272 article EN cc-by-nc Food Chemistry X 2025-02-01

The addition of natural compounds as additives in fish products is increasingly important to prevent or delay their deterioration. Nowadays, most the used on seafood are synthetic, and safety being questioned. aim this research was compare effects different seaweeds extracts lipid sensory quality parameters canned Atlantic salmon ( Salmo salar ) muscle. For purpose, four were tested: cochayuyo, sea lettuce, ulte, red luche covering liquids against a standard, without seaweed extract. each...

10.1002/ejlt.201300239 article EN European Journal of Lipid Science and Technology 2013-12-18

A biorefinery process was developed for a freeze-dried pomace of calafate berries (Berberis microphylla). The consisted extraction lipophilic components with supercritical CO2 (scCO2) and subsequent the residue pressurized mixture ethanol/water (1:1 v/v). scCO2 extracted oil from pomace, while liquid generated crude extract rich in phenols fiber, proteins minerals. Response surface analysis suggested optimal conditions 60 °C, 358.5 bar 144.6 min to obtain lipid yield 11.15% (d.w.). dark...

10.3390/antiox12020323 article EN cc-by Antioxidants 2023-01-30

This study examines the extraction of oil from cold-press rapeseed cake using Supercritical CO2(SC-CO2). The effects pressure (20, 30, and 40 MPa), temperature (40, 50, 60 ºC), time (60, 90, 120 min) on yield composition (tocopherols carotenoids) were studied response surface design. results indicated that influenced most oil, followed by time. Extraction had no effect composition. did not affect tocopherol concentration to a great extent, whereas in its carotenoid concentration. A...

10.1590/s0104-66322012000300016 article EN Brazilian Journal of Chemical Engineering 2012-09-01

Stevia ( rebaudiana Bert.) is a relevant source of natural phenolic compounds with antioxidant and antimicrobial properties. The aim this study was to evaluate the potential protective effect crude stevia extracts on quality shelf‐life salmon Salmo salar ) paste. For this, polyphenol obtained by water extraction, ethanol/water extraction supercritical CO 2 ethanol were evaluated in preserving Salmon paste stored under refrigerated conditions (5°C) for 21 days, being primary, secondary, total...

10.1002/ejlt.201600467 article EN European Journal of Lipid Science and Technology 2017-06-06

Salmon paste contains nutritious components such as essential fatty acids (EPA, DHA), vitamin E and astaxanthin, which can be protected with the addition of red algae extracts. Phenolic extracts were prepared an ethanol: water mixture (1:1) from seaweeds Gracilaria chilensis, Gelidium chilense, Iridaea larga, Gigartina chamissoi, skottsbergii radula, obtained Pacific Ocean. Most had a high content protein (>7.2%), fiber (>55%) β-glucans (>4.9%), all expressed on dry weight basis....

10.3390/antiox10071108 article EN cc-by Antioxidants 2021-07-11
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