Patricio Orellana-Palma

Dr. Patricio Orellana-Palma

Escuela de Nutrición y Dietética, y Centro Integrativo de Biología y Química Aplicada, Universidad Bernardo O'Higgins, Santiago, Región Metropolitana, Chile
orcid

Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 August 2015 in Innovative Food Science & Emerging Technologies
Verified
Journal Article
Closed access
GPGuillermo Petzold
Guillermo Petzold
Jorge MorenoJorge Moreno
Jorge Moreno
PLPaz Lastra
Paz Lastra
KRKaterin Rojas
Katerin Rojas
Patricio Orellana-PalmaPatricio Orellana-Palma
Patricio Orellana-Palma

1 August 2016 in Innovative Food Science & Emerging Technologies
Verified
Journal Article
Closed access
GPGuillermo Petzold
Guillermo Petzold
Patricio Orellana-PalmaPatricio Orellana-Palma
Patricio Orellana-Palma
Jorge MorenoJorge Moreno
Jorge Moreno
ECElisabeth Cerda
Elisabeth Cerda
PPPaula Parra
Paula Parra

1 December 2020 in Food Science and Technology
Verified
Journal Article
Open access
PDF file
NCNidia Casas-Forero
Nidia Casas-Forero
Patricio Orellana-PalmaPatricio Orellana-Palma
Patricio Orellana-Palma
GPGuillermo Petzold
Guillermo Petzold
This study investigated the impacts of centrifugal block freeze concentration (CBFC) and evaporation processes on physicochemical properties, bioactive compounds and antioxidant activity applied to fresh blueberry juice. After three concentration cycles, the solutes were approximately 3.6 times to the initial condition (12 °Brix) and the final color (ΔE*>4.7) was darker than the fresh juice. In all cycles, CBFC obtained higher bioactive compound concentration than evaporation, with values, in the last cycle, close to 610 mg GAE/100 mL, 57 mg M3G/100 mL and 279 mg CEQ/100 mL for total polyphenol, anthocyanin and flavonoid content, respectively, causing a retention over 70%. Similarly, as the cycles progressed, DPPH assay presented values from 1916 to 5700 μmol Trolox equivalents/L, which were higher than those reported by the treatment at high temperatures (1916 to 4600 μmol Trolox equivalents/L), resulting in good antioxidant activity in the cryoconcentrates achieved at low temperatures. Moreover, a significant correlations between CIELab parameters, bioactive compounds and antioxidant activity were observed. Thus, CBFC is an interesting and novel technique to preserve important quality properties from fresh fruit juices.

1 December 2017 in Food Bioscience
Verified
Journal Article
Closed access
Patricio Orellana-PalmaPatricio Orellana-Palma
Patricio Orellana-Palma
GPGuillermo Petzold
Guillermo Petzold
MGMaría Guerra-Valle
María Guerra-Valle
MAMarianela Astudillo-Lagos
Marianela Astudillo-Lagos

4 January 2022 in Antioxidants
Verified
Journal Article
Open access
PDF file
MVMaría Estuardo Guerra Valle
María Estuardo Guerra Valle
Patricio Orellana-PalmaPatricio Orellana-Palma
Patricio Orellana-Palma
GPGuillermo Petzold
Guillermo Petzold
Helicobacter pylori (H. pylori) infection affects more than half of the world’s population, and thus, about 10 to 20% of people with H. pylori suffer from peptic ulcers, which may ultimately lead to gastric cancer. The increase in antibiotic resistance and susceptibility has encouraged the search for new alternative therapies to eradicate this pathogen. Several plant species are essential sources of polyphenols, and these bioactive compounds have demonstrated health-promoting properties, such as the gut microbiota stimulation, inflammation reduction, and bactericidal effect. Therefore, this review aims to discuss the potential effect of plant-based polyphenols against H. pylori and their role in the gut microbiota improvement.

1 November 2017 in Food and Chemical Toxicology
Verified
Journal Article
Closed access
Patricio Orellana-PalmaPatricio Orellana-Palma
Patricio Orellana-Palma
GPGuillermo Petzold
Guillermo Petzold
LPLissage Pierre
Lissage Pierre
JPJosé Manuel Pensaben
José Manuel Pensaben