José de Jesús Ornelas-Paz

José de Jesús Ornelas-Paz
Research Center for Food and Development A.C. | CIAD · Department of Physiology and Technology of Food from Temperate Regions (Cuauhtémoc Unit)

PhD

About

151
Publications
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2,774
Citations
Citations since 2016
75 Research Items
2221 Citations
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400

Publications

Publications (151)
Article
Fire blight is a complex and devastating plant disease caused by the necrotrophic bacterium Erwinia amylovora. One of the main factors that determine the occurrence of the disease is the infective inoculum from the primary sources in the orchard. The most accepted theory asserts that overwintering cankers are the most likely source of the primary i...
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This study describes the preparation and characterization of eggplant peel extract-loaded electrospun gelatin nanofiber and study of its in vitro release. Results obtained by scanning electron microscopy (SEM) and transmission electronic microscopy (TEM) micrograph revealed that eggplant peel extract-loaded electrospun gelatin nanofiber is in nanom...
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In this study, we evaluated thermals, textural and rheological properties of amaranth concentration (AF) on ternary dough system elaborated with wheat flour (WF) and whole wheat flour (WWF). The highest hardness was developed in blends with 50 g/50 g of AF/WF, AF/WWF and 33.3 g/33.3 g/33.3 g of AF–WF–WWF. Lower hardness values were developed with h...
Article
Plants are susceptible to a wide variety of pathogens that can affect their physiology, growth and cause death. Synthetic fungicides are used for fungal control; however, these chemicals can be harmful to the environment and favor the development of resistance; therefore, as a viable alternative, antagonistic fungi, bacteria and actinomycetes can b...
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Streptomyces are recognized as antipathogenic agents and plant-growth-promoting rhizobacteria. The objective of this study was to evaluate the capacities of four antifungal Streptomyces strains to: produce the substances that are involved in plant growth; solubilize phosphates; and fix nitrogen. The effects of the volatile organic compounds (VOCs)...
Article
There is uncertainty about the identity of digestive metabolites of anthocyanins because many are naturally present in foods and/or are formed from other phenolic compounds during the digestive process. Studies using pure anthocyanins are needed to clarify this uncertainty. In this study, selected anthocyanins were purified from common fruits and i...
Article
Light‐emitting diodes (LEDs) are emerging as a clean technology for improving the postharvest preservation of fruits. Mangoes were irradiated with blue LEDs (75 µmol s‐1 m−2) and then stored for 15 days. The fruit quality, including the content of antioxidant compounds and activities of antioxidant enzymes, was evaluated during storage. The treatme...
Article
Melissococcus plutonius is a pathogenic bacterium that affects honeybee brood triggering colony collapse in severe cases. The bacterium causes a European foulbrood (EFB) disease in the honeybee populations, impacting beekeeping and agricultural industries. The pathogenesis, epidemiology, and variants of M. plutonius have been studied, but the virul...
Article
Lupeol, curcumin, and quercetin are naturally occurring compounds present in plants, with some beneficial health effects. In the present study, organogel‐based emulsions (o/w) were obtained from edible oils to increase their bioaccessibility and intestinal permeability. Particle size analysis, rheology test, optical microscopy, in vitro digestibili...
Article
The physicochemical properties, including nutrient and bioactive compound compositions, in fruit of four creole avocados (CA) from Mexico were determined and compared with those of 'Hass' fruit. 'Hass' pulp and some CA pulps contained similar concentrations of lutein, chlorophyll a, β-sitosterol and α-tocopherol. CA pulp contained 3.91-9.55% more o...
Article
The effects of water-oil interfacial activity of candelilla wax (CW), glycerol monopalmitate (GMP), glycerol monooleate (GMO) and polyglycerol-polyricinoleate (PGPR) on the microstructure and rheology of W/O emulsions oleogelled with CW and fully hydrogenated soybean oil (FH) was investigated. The emulsifier with the highest interfacial activity wa...
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This study consisted of determining the effect of Bacillus strains inoculated alone or in combination with phytopathogenic fungi on the production of human health-related compounds and volatile organic compounds (VOCs) in tomato fruits. Seedlings were cultivated under greenhouse conditions and inoculated with B. amyloliquefaciens, B. methylotrophic...
Article
The pulp of ripe fruit of Hass and fourteen Hass type (HT) avocado cultivars was evaluated for phytochemicaland nutrient composition. All HT fruit had similar appearance to that of Hass, however, the ripening rate of most HT fruit was generally faster than that of Hass, with this being an important disadvantage for HT fruit. Six sugars, seven organ...
Article
Full-text available
The bacterium Melissococcus plutonius is the etiologic agent of the European foulbrood (EFB), one of the most harmful bacterial diseases that causes the larvae of bees to have an intestinal infection. Although EFB has been known for more than a century and is practically present in all countries where beekeeping is practiced, the disease has been l...
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Fungi and oomycetes are important plant pathogens that constantly attacked plants, thus compromising the production of foods worldwide. Streptomyces strains might be useful to control fungal pathogens by different mechanism. The in vitro antagonistic activity of non-volatile and volatile metabolites from four Streptomyces strains was evaluated over...
Article
Dried fruit pulp and oil from avocado fruit (Persea americana, Cv Hass) at five different ripening stages were digested in vitro to determine the bioaccessibility of several fat-soluble bioactive compounds (FSBC). Viscosity, particle size, ζ-potential and lipolysis were evaluated and related to the bioaccessibility of the tested compounds. Fatty ac...
Article
The peels of ripe fruit of ‘Hass’ and ‘Hass’ type (HT) avocado cultivars were evaluated for phytochemical composition and other attributes. Peels represented from 8.78 to 14.11% of fruit weight. Their color ranged from homogeneous black to black with very small greenish spots. The oil content in the peels was low. Twelve fatty acids were identified...
Article
The gelation process, elasticity, and mechanical recovery after shear were studied in mixed oleogels of ethylcellulose (EC), monoglycerides (MG), and candelilla wax (CW). EC oleogels produced without MG showed grainy texture due to incomplete dissolution of crystalline fractions of raw EC in the vegetable oil (150 °C). These fractions were eliminat...
Article
Insects are considered as alternative sources of chitosan; however, studies about the functional film-forming properties of insect chitosan are scarce. Insect chitosan films were made from Tenebrio molitor and Brachystola magna and were compared with commercial chitosan of different molecular weight (Mw). Mechanical properties (tensile strength, TS...
Article
Se realizó la microencapsulación por coacervación compleja de extractos de higo en tres etapas de madurez, utilizando dos complejos: Proteína de Soya Aislada con Goma Arábiga (SPI/GA) y Gelatina con Goma Arábiga (G/GA) como material de pared. La estabilidad de las cápsulas se evalúo en términos de la presencia de compuestos fenólicos, la actividad...
Article
Full-text available
Phenolic compounds are secondary metabolites synthesised in response to biotic or abiotic stress in plants. This stress-induced increase in phenolic compound concentrations is generally activated by internal levels of abscisic acid (ABA). The exogenous application of ABA or calcium chloride on grapevines is also known to increase grape yield and al...
Article
Full-text available
Lupeol, is naturally occurring compound present in plants, with some beneficial health effects. In the present study, organogel-based emulsions (o/w) were obtained from canola oil. Particle size analysis, rheology test, optical microscopy, and permeability of nutraceuticals by cell culture and UPLC-MS/MS were done. Particle hydrodynamic diameters o...
Article
This work reports a strategy to design a craft banana beer recipe using the Giant Dwarf cultivar to obtain juice for usage as an adjunct, providing an important source of carbon, aroma, and flavor in the final product. To evaluate the proposed method, 18 different formulations were tested, 9 of which were carbonated with sucrose and 9 with banana j...
Article
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The aim of this study was to evaluate the effectiveness of chitosan–tomato plant extract (C-TPE) edible coating (EC) on the physicochemical, microbiological, sensory, and antioxidant capacity changes of pork during storage. Edible coatings prepared with chitosan 1%, acetic acid 1%, glycerol, and TPE (0.1% and 0.3%) were tested. Slices of pork were...
Article
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The fall armyworm (FAW), Spodoptera frugiperda (Lepidoptera: Noctuidae), is the most important pest of maize in many countries. Entomopathogenic viruses mainly Baculoviruses family are excellent biological control agents and therefore a viable alternative for managing this pest. The aim of this study was to determine the biological activity of eigh...
Article
Gelation of vegetable oils with candelilla wax (CW) and saturated triacylglycerols (TAGs) is a promising strategy for engineering fat-based foods, cosmetics, and drug delivery systems. n-hentriacontane (C31) defines, to a large extent, the thermal properties of CW. Therefore, the phase behavior and microstructure of binary mixtures of C31 and trimy...
Article
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p>El objetivo del estudio fue aislar y caracterizar hongos y bacterias antagonistas de la rizosfera de huertos de aguacate de Xalisco, Nayarit, México, capaces de inhibir el crecimiento in vitro de aislados de Fusarium oxysporum . En 2018, se recolectaron muestras de suelo asociado a la rizosfera de árboles sanos de 10 huertos de aguacate cv. Hass...
Article
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El objetivo del estudio fue evaluar la actividad antifúngica de Streptomyces spp. contra Exserohilum rostratum cepa CIAD_CP01 (Sinónimo de Setosphaeria rostrata ), así como su capacidad para producir sustancias promotoras del crecimiento vegetal. La actividad antagónica in vitro de seis cepas de Streptomyces se evaluó por confrontación directa y a...
Article
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Mexico is the largest producer, exporter and consumer of avocados (Persea americana Mill) in the world. The demand for this fruit in some non-producing countries is currently high. The main motivation for this fruit’s consumption is its exquisite taste and pleasant texture. However, recent research has suggested that this fruit can exert protective...
Article
"Radiation is any energy traveling through the space in form of waves or particles. It can be classified as ionizing and nonionizing, depending on its energy. Ionizing energy has shorter wavelengths yet higher frequency and energy as compared to nonionizing energy... The term 'food irradiation' refers to the deliberate exposure of food to ionizing...
Article
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Native starch was isolated from three corn landraces and a hybrid variety. The starches were oxidized with several concentrations of NaOCl (0.8, 2 and 5% w/w active chlorine). The physicochemical and functional properties of oxidized starches were compared with those of native starches of the same source. The oxidation treatment increased the conte...
Article
The crystal network development, elastic properties scaling behavior, and mechanical reversibility of candelilla wax (CW) oleogels with and without emulsifiers were studied. Saturated monoglycerides (MG) and polyglycerol polyricinoleate (PGPR) were added at 1 or 2 times the critical micelle concentration. Although the micelles of both emulsifiers a...
Article
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Native and modified starches of chayotextle and potato were mixed with rainbow trout meat, and the resistant starch content, pH, water-holding capacity (WHC), malonaldehyde content, sensorial properties and texture profile of the rainbow trout fish burger (RTB) were investigated during 21 days of storage at 0°C. The addition of acid-modified starch...
Chapter
Irradiation is an underutilized technology in the sector of fresh fruits and vegetables, despite the fact that it is able to prolong the shelf life, maintain the safety, and preserve the quality of these foods when it is applied in correct doses. The current international trade of plant foods is promoted by using irradiation given its effect on ins...
Article
An alternative to promote the quality of tomato fruits (Solanum lycopersicon L.) and reduce the indirect effects of phytopathogenic fungi that cause root and crown diseases, might be the use of antagonistic bacteria of the Bacillus genus. The aim of the study was to determine the effect, of three Bacillus strains alone and together in interaction w...
Article
Full-text available
The aim of this study was to evaluate the effects of chitosan-tomato plant extract (C-TPE) edible coating (EC) applications on the physicochemical, microbiological, sensory and antioxidant capacity of chicken during storage. Edible coatings prepared with chitosan 1%, acetic acid 1%, glycerol and TPE (0.1 and 0.3%) were tested. The slices were subme...
Article
Full-text available
Plum edible part was used to obtained extracts by during a 4 h maceration process using three different solvents (ethanol, methanol and water) for the determination of total phenols and flavonoids, antioxidant capacity by (2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS), 2,2-diphenyl-1-picrylhydrazyl (DPPH) and hemolys...
Article
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The objective of this study was to determine if oranges in the top and bottom layers within a Standard Place Pack were impacted differently by irradiation after long-term storage. ‘Barnfield’ Navel oranges were packed in Standard Place Pack cartons and treated with 0, 0.15, or 1 kGy of gamma irradiation. The fruit were stored for 3 weeks at 5 °C an...
Article
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Apple starch films were obtained from apples harvested at 60, 70, 80 and 90 days after full bloom (DAFB). Mechanical properties and water vapor permeability (WVP) were evaluated. The apple starch films at 70 DAFB presented higher values in the variables of tensile strength (8.12 MPa), elastic modulus (3.10 MPa) and lower values of water vapor perme...
Article
European foulbrood (EFB) caused by Melissococcus plutonius is an important bee brood disease but, in Mexico, information about this bacterium is limited. We evaluated the prevalence of typical and atypical strains in beehives of seven apicultural regions of the state of Chihuahua, Mexico. We performed MLST and phylogenetic analysis to characterize...
Article
Full-text available
p>El objetivo de este estudio fue determinar el efecto de tres especies de Trichoderma cuando se aplican solas y cuando se confrontan con tres fitopatógenos, sobre el crecimiento y calidad del fruto de jitomate. El sustrato de las plantas se inoculó con Trichoderma spp. solas y en confrontación con Alternaria solani , Fusarium oxysporum y Phytophth...
Article
El tejocote (Crataegus spp.) es un planta ampliamente distribuida en México, donde se le utiliza principalmente como alimento humano y para el ganado. Su uso en la medicina tradicional es bajo, comparado con el que se presenta en otros países. Históricamente, este fruto se ha utilizado para tratar un sinnúmero de padecimientos, que incluyen enferme...
Article
Full-text available
Native starch was isolated from two corn landraces (blue and white) and a hybrid variety and then characterized for its physicochemical, thermal and rheological properties. The hybrid variety showed the highest starch yield, with its starch showing the highest fat, moisture and protein content but the lowest onset temperature of gelatinization. The...
Article
Full-text available
Hawthorn (Crataegus spp.) is a plant widely distributed in Mexico, where it is mainly used as food for humans and feed for livestock. Its use in traditional medicine is low, compared to that in other countries. Historically, the fruit has been used to treat many conditions, including cardiovascular diseases, which represent one of the leading cause...
Article
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Chitosan films (CF) [1 and 2% w/v] alone and with cinnamaldehyde (CNE) [0.25, 0.5 and 1% v/v] were prepared using an emulsion method, and the obtained films were characterized in terms of water vapor permeability (WVP), water solubility and optical, mechanical and antioxidant properties. The incorporation of CNE at 1% (v/v) significantly decreased...
Article
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This work presents a novel method to associate the polyphenol oxidase (PPO) and the peroxidase (POD) activities with the ripening-mediated color changes in banana peel and pulp by computational image analysis. The method was used to follow up the de-greening of peel and browning of homogenized pulp from ‘Giant Dwarf’ (GD: Musa AAA, subgroup Cavendi...
Article
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p>Se aislaron especies de Mortierella en Agar Dextrosa Papa y agar V8, así como peras maduras y hojas de azalea, como sustratos trampa. Se obtuvieron 419 aislados de Mortierella , de muestras de suelo en Chihuahua, México, los cuales se clasificaron en 21 grupos de acuerdo con sus caracteres morfológicos. Mortierella se aisló con mayor frecuencia c...
Book
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https://idus.us.es/xmlui/handle/11441/68953 Libro sobre pigmentos carotenoides editado en el marco de la RED TEMÁTICA IBERCAROT (referencia 112RT445) http://carotenoides.us.es. PROGRAMA IBEROAMERICANO DE CIENCIA Y TECNOLOGIA PARA EL DESARROLLO – CYTED.
Chapter
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Introducción Los carotenoides están presentes en muchos alimentos. Estudios in vitro e in vivo parecen indicar que podrían ser beneficiosos para la salud, aunque estos efectos protectores no han sido demostrados de forma contundente en humanos debido a las dificultades que entrañan estos estudios. Algunos de estos compuestos son precursores de la v...
Article
Firmness at harvest determines the postharvest storability and quality of apples. The climate change has altered the physiological processes of fruits and the reliability of ripening indicators typically used to determine the harvest time, compromising fruit firmness. In this study, ‘Golden Delicious’ apples were harvested at several developmental/...
Article
Functional response of third-instar larvae of green lacewing, Chrysoperla carnea (Stephen) (Neuroptera: Chrysopidae), to four densities of single-instar larvae of the five instars of obliquebanded leafroller, Choristoneura rosaceana (Harris) (Lepidoptera: Tortricidae), was evaluated at 25 ± 1°C in a laboratory. The aims were to determine the type a...
Article
Full-text available
p>Se estimó la incidencia de enfermedades de raíz en manzanos de Chihuahua, México, y se identificaron trescientos aislados (hongos y Oomicetos) tomados del tejido de raíz y suelo de la rizosfera de árboles con síntomas de infección y libres de síntomas de enfermedad. Paralelamente, se aislaron e identificaron hongos putativamente antagonistas. Se...
Article
The impact of processing at industrial scale on properties of apple juice and pectin fractions extracted from the generated pomace is scarcely known. In this study, apple juice was collected at selected steps of the industrial production process and evaluated for physical and chemical properties. The generated pomace was recovered and subjected to...
Article
Phytosanitary treatments prevent the introduction of pests such as fruit flies into pest free zones, and are often required for international trade. Irradiation is increasingly being considered as an alternative to cold and chemical phytosanitary treatments, such as methyl bromide. In this study, the effect of low dose gamma irradiation on the post...
Article
Transnational trade of ‘Seedless kishu’ mandarins (Citrus kinokuni mukakukishu) would require them to be subjected to a suitable phytosanitary treatment. Irradiation is used as an effective treatment for many fruit, but the effect on quality of kishu mandarins is unknown. ‘Seedless kishu’ mandarins were treated with gamma irradiation (150, 400, and...