A5022614264- Essential Oils and Antimicrobial Activity
- Phytochemicals and Antioxidant Activities
- Bee Products Chemical Analysis
- Insect and Pesticide Research
- Postharvest Quality and Shelf Life Management
- CO2 Reduction Techniques and Catalysts
- Chalcogenide Semiconductor Thin Films
- Electrocatalysts for Energy Conversion
- Electrochemical sensors and biosensors
- Quantum Dots Synthesis And Properties
- Chemical Analysis and Environmental Impact
- Traditional and Medicinal Uses of Annonaceae
- Ionic liquids properties and applications
- Phytochemistry and Biological Activities
- Microbial Fuel Cells and Bioremediation
- Botanical Research and Applications
Pontificia Universidad Católica de Chile
2018-2024
Monofloral Ulmo honey is a very appreciated product in the international market but more information needed order to support their health properties. Total phenolic and flavonoid contents, antioxidant capacity antibacterial activity of monofloral (Eucryphia cordifolia) samples were determined. The contained between 176 208 mg gallic acid eq (GAE)/100 g for total content (TPC) 43–90 Quercetin eq/100 (TFC). ranged 91 152 mM Trolox/g 28–49 DPPH ABTS assays, respectively. All extracts from...
SERS substrates with silver nanosheets (AgNS) on a copper surface were synthesized. A quantitative analysis of the pesticide imidacloprid was then performed by applying PLSR chemometric model.
Abstract Developing copper‐based electrocatalysts that favor high‐value multi‐carbon oxygenates is desired, given their use as platform chemicals and a direct fuel for transportation. Combining CO‐selective catalyst with copper shifts the selectivity of CO 2 electroreduction toward C products. Herein, we developed reduced graphene oxide (rGO)‐modified nanocube electrocatalyst could shift towards ethanol (Faradaic efficiency 76. 84 % at −0.9 V vs. reversible hydrogen electrode (RHE))....
Chilean beekeeping is characterized by a variety of honey types, some unique due to high participation native plant species where nectar collected bees. For the first time flavonoids, phenolic compounds, and antioxidant capacity in honeys Azara integrifolia petiolaris, commonly known as corcolén honeys, have been determined. The results showed content total phenol (between 48.79 153.30 mg GAE/100 g honey), while flavonoid ranged between 8.80 12.33 QE/100 honey. ORAC-FL assay values varied...
Cryptocarya alba is an important tree species in the Chilean sclerophyllous forest. Its leaves and bark are used traditional medicine to treat liver diseases rheumatism. Analyses of essential oil (EO) show serious discrepancies, information on other constituents limited. The aerial biomass individual trees from 3 wild populations, some old trees, farmed saplings were analyzed ( n = 132). EO profiles studied by gas chromatography/mass spectrometry (GC/MS). alkaloidal polyphenol compositions...
Nalca is an edible rhubarb-type plant from the southern of Chile; with studies focussing on petiole chemical and biological properties. This work evaluated for first time antibacterial capacities three organs nalca against Escherichia coli, Staphylococcus aureus Pseudomonas aeruginosa. Petiole (P), root (R) flower (F) ethanolic extracts at different concentrations (25, 50, 100 mg/mL) were by means agar diffusion assay MIC. The result showed that activities are bacteria concentration...