A5016945919- Postharvest Quality and Shelf Life Management
- Plant Physiology and Cultivation Studies
- Plant Stress Responses and Tolerance
- Phytochemicals and Antioxidant Activities
- Berry genetics and cultivation research
- Cephalopods and Marine Biology
- Horticultural and Viticultural Research
- Botanical Research and Applications
- Plant responses to elevated CO2
- Pomegranate: compositions and health benefits
- Meat and Animal Product Quality
- Plant Gene Expression Analysis
- Plant Surface Properties and Treatments
- Plant biochemistry and biosynthesis
- Fermentation and Sensory Analysis
- Food composition and properties
- Food Drying and Modeling
- Antioxidant Activity and Oxidative Stress
- Polysaccharides and Plant Cell Walls
- Microbial Inactivation Methods
- Plant and soil sciences
- Medicinal Plants and Bioactive Compounds
- Leaf Properties and Growth Measurement
- Plant Molecular Biology Research
- Plant Micronutrient Interactions and Effects
Pontificia Universidad Católica de Valparaíso
2025
Centro de Estudios Científicos
2019-2024
University of Valparaíso
2014-2023
Instituto de Investigaciones Agropecuarias
2012-2019
Valparaiso University
2015
University of Talca
2009-2013
Universidad de La Frontera
2003
Fleshy fruits are characterized by having a developmentally and genetically controlled, highly intricate ripening process, leading to dramatic modifications in fruit size, texture, color, flavor, aroma. Climacteric such as tomato, pear, banana, melon show ripening-associated increase respiration ethylene production these processes well-documented. In contrast, the hormonal mechanism of development non-climacteric fruit, strawberry, grape, raspberry, citrus, is not well characterized....
Fragaria chiloensis is characterized for having great aroma and flavor properties. Using headspace-SPME different volatile compounds were identified quantified during development ripening of the fruit. The headspace was dominated by esters, butyl acetate, ethyl butanoate hexanoate being most abundant in fully ripe As esters are important synthesized through alcohol acyltransferases (AAT), a full-length cDNA (FcAAT1) isolated from F. fruit which displayed three motifs characteristic AATs....
Mountain papaya ( Vasconcellea pubescens ) is a climacteric fruit that develops strong and characteristic aroma during ripening. Esters are the main volatile compounds produced by fruit, most of them dependent on ethylene. As esters synthesized through alcohol acyltransferases (AAT), full-length cDNA (VpAAT1) was isolated displayed motifs plant acyltransferases. The sequence cloned expressed in yeasts, obtaining functional enzyme with high AAT activity toward formation benzyl acetate....
Preharvest applications of methyl jasmonate (MeJA) have been shown to improve post-harvest fruit quality in strawberry fruit. However, the effectiveness consecutive field at different phenological stages on reinforcement antioxidant capacity remains be analyzed. To determine best response (Fragaria × ananassa 'Camarosa') numbers and timing MeJA applications, we performed three differential preharvest treatments (M1, M2, M3) consisted successive 250 μmol L-1 flowering (M3), large green (M2...
The raspberry (
The effects of salt on the quality fruits were investigated in order to compare impact key fruit properties cultivated domesticated tomato species (Solanum lycopersicum) and its wild halophyte relative Solanum chilense. To this end, cherry plants (S. lycopersicum var. cerasiforme) from accession LA4107 chilense) maintained for 112 days absence or presence NaCl (40 80 mM) nutrient solution. Among others, salinity decreased weight increased total soluble solid (TSS) S. but not antioxidant...
Red raspberries are valued for their color, flavor, and health-promoting organic compounds, which may be affected by increased temperatures due to climate change. This work aimed provide new information on the response of raspberry cv. “Heritage” thermal increase its impact fruit quality perceived flavor. The study was conducted during two seasons in locations with contrasting agroclimatic conditions. A zone high background (central orchard) low (southern were studied. treatments three...
The effect of saline stress (NaCl, 40, 80 and 160 mmol L−1 NaCl) on growth, plant water status leaf antioxidant enzyme activities was investigated in a commercial cultivar cherry tomato (Solanum lycopersicum var. cerasiforme L.) wild-related species collected salt-affected area North Chile chilense Dun.). Salt applied nutrient solution at the vegetative stage during 40 days. highest NaCl concentration reduced shoot relative fresh dry weight cultivated S. but had less impact chilense. Both...
Arrayan and peumo fruits are commonly used in the traditional medicine of Chile. In this study, concentration extracts halving bacterial viability biofilms formation disruption drug-sensitive drug-resistant strains Staphylococcus aureus Pseudomonas aeruginosa was determined. The chemical composition analyzed by high-resolution liquid chromatography coupled with mass spectrometry (U-HPLC/MS). arrayan extract (Inhibitory IC50 0.35 ± 0.01 mg/mL) more effective than (IC50 0.53 0.02 inhibition S....
The raspberry (Rubus idaeus) is an important fruit crop; however, its accelerated softening a critical postharvest problem, even at low temperatures. Its has been partially associated with the endogenous production of ethylene from receptacle during ripening. To understand relationship between and quality beginning ripening process, physiological parameters were evaluated ‘Heritage’ cultivar. Two storage assays, 0 °C 10 °C, carried out independent groups fruits attached to their white stage...
The raspberry (Rubus idaeus L.) fruit is characterized by its richness in functional molecules and high nutritional value, but the rate of softening limits quality during postharvest. Raspberry drupelets have a particular ripening regulation, depending partially on effect ethylene produced from receptacle. However, possible role abscisic acid (ABA) modulation parameters unclear. This study quality-associated hormonal contents development two seasons. showed typical changes ripening: drastic...
SUMMARY Farmers around the world are concerned about effects of human-induced salinity on crop yield and quality. Therefore, researchers actively testing wild relatives cultivated plants to identify candidates improve performance under salt stress. A study was conducted understand stress (Sodium chloride, NaCl) tomato species ( Solanum lycopersicum var. cerasiforme L.) a relative chilense Dun.) from Northern part Chile. Plants were hydroponically controlled environmental conditions for 112...
Abstract The objective of this research was to explore the advantages apple slices dehydration (cv. Granny Smith) using a Refractance Window (RW) with and without osmotic as pretreatment compared conventional hot‐air drying considering quality attributes such color texture. For pretreatment, were osmotically dehydrated coupled moderate electric field (9.3 V/cm) sucrose solution (45°Brix) at 40°C until an A w = 0.95 achieved. Then, (with pretreatment) RW 55, 75, 95°C 55°C control. results...
Pomegranate (Punica granatum) is a non-climacteric fruit with high antioxidant content in arils and peels, of which 92% are anthocyanins tannins. However, it susceptible to chilling injury (CI), physiological disorder concentrated the peel, can affect organoleptic quality fruit. To understand effects modified atmosphere ethylene responses stress on composition fatty acids peel under CI conditions, exogenous treatments (0.5, 1.0, 1.5 μg L-1), 1-methylcyclopropene (1-MCP; 1 μl packaging (MAP:...