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  1. Article ; Online: Wall Materials for Encapsulating Bioactive Compounds via Spray-Drying: A Review.

    Díaz-Montes, Elsa

    Polymers

    2023  Volume 15, Issue 12

    Abstract: Spray-drying is a continuous encapsulation method that effectively preserves, stabilizes, and retards the degradation of bioactive compounds by encapsulating them within a wall material. The resulting capsules exhibit diverse characteristics influenced ... ...

    Abstract Spray-drying is a continuous encapsulation method that effectively preserves, stabilizes, and retards the degradation of bioactive compounds by encapsulating them within a wall material. The resulting capsules exhibit diverse characteristics influenced by factors such as operating conditions (e.g., air temperature and feed rate) and the interactions between the bioactive compounds and the wall material. This review aims to compile recent research (within the past 5 years) on spray-drying for bioactive compound encapsulation, emphasizing the significance of wall materials in spray-drying and their impact on encapsulation yield, efficiency, and capsule morphology.
    Language English
    Publishing date 2023-06-12
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2527146-5
    ISSN 2073-4360 ; 2073-4360
    ISSN (online) 2073-4360
    ISSN 2073-4360
    DOI 10.3390/polym15122659
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Phase stabilization and optical response in the ultraviolet range, due to terbium concentration in hafnium oxide nanoparticles.

    Montes, E / Guzmán-Olguín, J C / Falcony Guajardo, C / Guzmán Mendoza, J

    Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

    2023  Volume 200, Page(s) 110963

    Abstract: This work reports the influence of terbium trivalent ions on growing kinetics and the phase in hafnium oxide nanoparticles, as well as response to radiation in the range from 256 to 286. The nanoparticles were obtained by the hydrothermal route ... ...

    Abstract This work reports the influence of terbium trivalent ions on growing kinetics and the phase in hafnium oxide nanoparticles, as well as response to radiation in the range from 256 to 286. The nanoparticles were obtained by the hydrothermal route maintaining the temperature constant and varying the reaction time and the terbium concentration. The results show a gradual change in the phase with the concentration of terbium trivalent ions, going from the monoclinic phase, present at low concentrations, to the tetragonal phase, which appears from dopant concentrations greater than 5% at., increasing in amount with concentration of dopant. These phases appear as two perfectly defined morphologies. Furthermore, there is a significant change in radiative lifetimes when the tetragonal phase appears.
    Language English
    Publishing date 2023-07-29
    Publishing country England
    Document type Journal Article
    ZDB-ID 1142596-9
    ISSN 1872-9800 ; 0883-2889 ; 0969-8043
    ISSN (online) 1872-9800
    ISSN 0883-2889 ; 0969-8043
    DOI 10.1016/j.apradiso.2023.110963
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Ue I Zs.279: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

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  3. Article ; Conference proceedings: Complication or Neurovascular Interventions and How to Treat Them

    Montes, Enrique

    The Arab Journal of Interventional Radiology

    2020  Volume 04, Issue 03

    Event/congress PAIRS Annual Meeting, Grand Hyatt Hotel, Dubai UAE, 2020-02-26
    Language English
    Publishing date 2020-02-01
    Publisher Thieme Medical and Scientific Publishers Pvt. Ltd.
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ISSN 2542-7083 ; 2542-7075
    ISSN (online) 2542-7083
    ISSN 2542-7075
    DOI 10.1055/s-0041-1729059
    Database Thieme publisher's database

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  4. Article ; Conference proceedings: Double-Stent Retriever Thrombectomy

    Montes, Enrique

    The Arab Journal of Interventional Radiology

    2020  Volume 04, Issue 03

    Event/congress PAIRS Annual Meeting, Grand Hyatt Hotel, Dubai UAE, 2020-02-26
    Language English
    Publishing date 2020-02-01
    Publisher Thieme Medical and Scientific Publishers Pvt. Ltd.
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ISSN 2542-7083 ; 2542-7075
    ISSN (online) 2542-7083
    ISSN 2542-7075
    DOI 10.1055/s-0041-1729007
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  5. Article ; Online: Application of the performance of machine learning techniques as support in the prediction of school dropout.

    Jiménez-Gutiérrez, Auria Lucia / Mota-Hernández, Cinthya Ivonne / Mezura-Montes, Efrén / Alvarado-Corona, Rafael

    Scientific reports

    2024  Volume 14, Issue 1, Page(s) 3957

    Abstract: This article presents a study, intending to design a model with 90% reliability, which helps in the prediction of school dropouts in higher and secondary education institutions, implementing machine learning techniques. The collection of information was ... ...

    Abstract This article presents a study, intending to design a model with 90% reliability, which helps in the prediction of school dropouts in higher and secondary education institutions, implementing machine learning techniques. The collection of information was carried out with open data from the 2015 Intercensal Survey and the 2010 and 2020 Population and Housing censuses carried out by the National Institute of Statistics and Geography, which contain information about the inhabitants and homes. in the 32 federal entities of Mexico. The data were homologated and twenty variables were selected, based on the correlation. After cleaning the data, there was a sample of 1,080,782 records in total. Supervised learning was used to create the model, automating data processing with training and testing, applying the following techniques, Artificial Neural Networks, Support Vector Machines, Linear Ridge and Lasso Regression, Bayesian Optimization, Random Forest, the first two with a reliability greater than 99% and the last with 91%.
    MeSH term(s) Humans ; Student Dropouts ; Bayes Theorem ; Reproducibility of Results ; Machine Learning ; Neural Networks, Computer ; Support Vector Machine
    Language English
    Publishing date 2024-02-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-024-53576-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Calculation of Energy Level Alignment and Interface Electronic Structure in Molecular Junctions beyond DFT

    Montes, Enrique / Vázquez, Héctor

    Journal of physical chemistry. 2021 Nov. 12, v. 125, no. 46

    2021  

    Abstract: In atomistic simulations of molecular junctions, it is important to develop methods beyond density-functional theory (DFT) to describe the interface electronic structure and alignment of frontier molecular orbitals accurately. Here we describe a first- ... ...

    Abstract In atomistic simulations of molecular junctions, it is important to develop methods beyond density-functional theory (DFT) to describe the interface electronic structure and alignment of frontier molecular orbitals accurately. Here we describe a first-principles approach for molecular junctions that extends the DFT+Σ method, an approximate scheme based on self-energy corrections. The DFT+Σᵗᵒᵗ method presented here acts on junction states and introduces corrections to DFT-based molecular frontier orbitals not only on the molecular subspace but on the whole junction Hamiltonian. These self-energy corrections are scaled according to the molecular character of each junction wave function, a character which is given by projection coefficients between molecular orbitals and junction states. We illustrate this formalism in three paradigmatic weakly interacting single molecule junctions. Despite the weak metal/molecule interaction, calculated projection coefficients show metal/molecule hybridization resulting in molecular orbital features that can be significantly broadened over a wide energy range. Scaling of self-energy corrections to molecular levels seamlessly accounts for this hybridization and spectral delocalization. The resulting DFT+Σᵗᵒᵗ electronic structure brings molecular frontier orbital energies to values comparable to the G₀W₀ and WKM approaches. By considering the whole spectral distribution of molecular orbitals, DFT+Σᵗᵒᵗ shifts not just the main molecular peaks but modifies the whole junction electronic structure.
    Keywords density functional theory ; energy ; hybridization ; physical chemistry
    Language English
    Dates of publication 2021-1112
    Size p. 25825-25831.
    Publishing place American Chemical Society
    Document type Article
    ISSN 1932-7455
    DOI 10.1021/acs.jpcc.1c07407
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Impact of heat stress, water stress, and their combined effects on the metabolism and transcriptome of grape berries.

    Hewitt, Seanna / Hernández-Montes, Esther / Dhingra, Amit / Keller, Markus

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 9907

    Abstract: Recurring heat and drought episodes present challenges to the sustainability of grape production worldwide. We investigated the impacts of heat and drought stress on transcriptomic and metabolic responses of berries from two wine grape varieties. ... ...

    Abstract Recurring heat and drought episodes present challenges to the sustainability of grape production worldwide. We investigated the impacts of heat and drought stress on transcriptomic and metabolic responses of berries from two wine grape varieties. Cabernet Sauvignon and Riesling grapevines were subjected to one of four treatments during early fruit ripening: (1) drought stress only, (2) heat stress only, (3) simultaneous drought and heat stress, (4) no drought or heat stress (control). Berry metabolites, especially organic acids, were analyzed, and time-course transcriptome analysis was performed on samples before, during, and after the stress episode. Both alone and in conjunction with water stress, heat stress had a much more significant impact on berry organic acid content, pH, and titratable acidity than water stress. This observation contrasts with previous reports for leaves, which responded more strongly to water stress, indicating that grape berries display a distinct, organ-specific response to environmental stresses. Consistent with the metabolic changes, the global transcriptomic analysis revealed that heat stress had a more significant impact on gene expression in grape berries than water stress in both varieties. The differentially expressed genes were those associated with the tricarboxylic acid cycle and glyoxylate cycle, mitochondrial electron transport and alternative respiration, glycolysis and gluconeogenesis, carbohydrate allocation, ascorbate metabolism, and abiotic stress signaling pathways. Knowledge regarding how environmental stresses, alone and in combination, impact the berry metabolism of different grape varieties will form the basis for developing recommendations for climate change mitigation strategies and genetic improvement.
    MeSH term(s) Transcriptome ; Vitis/metabolism ; Fruit/genetics ; Fruit/metabolism ; Dehydration/metabolism ; Heat-Shock Response/genetics
    Language English
    Publishing date 2023-06-19
    Publishing country England
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S. ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-36160-x
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  8. Article: Advances in the Micropropagation and Genetic Transformation of

    Bautista-Montes, Erika / Hernández-Soriano, Laura / Simpson, June

    Plants (Basel, Switzerland)

    2022  Volume 11, Issue 13

    Abstract: ... ...

    Abstract The
    Language English
    Publishing date 2022-07-01
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2704341-1
    ISSN 2223-7747
    ISSN 2223-7747
    DOI 10.3390/plants11131757
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  9. Article: Analyzing the phenolic enriched fractions from Nixtamalization wastewater (Nejayote) fractionated in a three-step membrane process

    Díaz-Montes, Elsa / Castro-Muñoz, Roberto

    Current research in food science. 2022, v. 5

    2022  

    Abstract: Nejayote is recognized as the main by-product resulting from the nixtamalization process of maize kernels, which is categorized as an alkaline residue with a chemical composition based on carbohydrates (37.8–55.7%), fiber (22.8–25.5%), protein (4.9–7.4%), ...

    Abstract Nejayote is recognized as the main by-product resulting from the nixtamalization process of maize kernels, which is categorized as an alkaline residue with a chemical composition based on carbohydrates (37.8–55.7%), fiber (22.8–25.5%), protein (4.9–7.4%), and lipids (0.4–1.5%). In addition, Nejayote has an extensive content of simple (e.g., phenolic acids) and complex phenolic compounds (e.g., anthocyanins), which are responsible for the pigmentation and antioxidant activity of maize; therefore, there is a need of their identification depending on the type of maize. The current research has focused on the efficient extraction and identification of the phenolic acids contained in Nejayote after the processing of different types of maize. The target of this work was to fractionate Nejayote from white (NWM), red (NRM), and purple maize (NPM), using three different membranes, such as microfiltration (MF with a pore size of 1 μm) and ultrafiltration (UF100 and UF1 with a molecular weight cut-off of 100 kDa and 1 kDa, respectively), which were strategically applied to extract phenolic acids while retaining other molecules. Such a membrane system exhibited a retention in the first stage of almost all carbohydrates (MF-Retentate: ca. 12–19 g GE/L), while second stage (UF100-Permeate) a concentration of phenolic components was recovered ranging from 768 to 800 mg GAE/L. Finally, in the third stage (UF1-Permeate), 14 phenolic acids were identified, including ferulic and p-coumaric acids, derived from caffeic and ferulic acids, along with other molecules (e.g., glucose and fructose).
    Keywords anthocyanins ; antioxidant activity ; byproducts ; chemical composition ; corn ; fructose ; glucose ; microfiltration ; molecular weight ; nixtamalization ; pigmentation ; porosity ; research ; ultrafiltration ; wastewater
    Language English
    Size p. 1-10.
    Publishing place Elsevier B.V.
    Document type Article
    ISSN 2665-9271
    DOI 10.1016/j.crfs.2021.11.012
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: Carbon balance in grapevines (Vitis vinifera L.): effect of environment, cultivar and phenology on carbon gain, losses and allocation

    Hernández‐Montes, E. / Escalona, J.M. / Tomás, M. / Martorell, S. / Bota, J. / Tortosa, I. / Medrano, H.

    Australian journal of grape and wine research. 2022 Oct., v. 28, no. 4

    2022  

    Abstract: BACKGROUND AND AIMS: Measuring the carbon assimilation and respiration during vine phenology can provide an understanding of the dynamics of carbon fluxes from different organs and their relationship. Most field studies to date do not consider the ... ...

    Abstract BACKGROUND AND AIMS: Measuring the carbon assimilation and respiration during vine phenology can provide an understanding of the dynamics of carbon fluxes from different organs and their relationship. Most field studies to date do not consider the respiratory losses of different plant organs and their variability under environmental, genetic and phenological changes. The aim of this study was to investigate the effect of genotype and water regime on carbon assimilation, respiration and allocation during vine phenology. METHODS AND RESULTS: Field trials were carried out during 2013 and 2014 to study the effect of genotype and water status on carbon assimilation, respiratory losses from leaves, shoots, fruits and roots during the vine phenological cycle, and on biomass production. Carbon respiration varied during plant phenology and represented a significant proportion of the total vine carbon assimilation. The integrated carbon respiratory loss in leaves, fruits and roots was greater in irrigated vines than in non‐irrigated vines. Tempranillo recorded the highest carbon assimilation, leaf and stem respiration, as well as the highest above‐ground biomass. Garnacha showed a higher root respiration loss and allocated more biomass to the permanent organs. Accumulation of above‐ground biomass was influenced by plant carbon budgets during the growing season. CONCLUSIONS: Vine phenology, cultivar and plant water status affected carbon assimilation, carbon loss and carbon allocation. Non‐irrigated vines had a higher respiratory carbon loss in respect to the total carbon assimilation by photosynthesis. Above‐ and below‐ground carbon fluxes were coupled during vine phenology. SIGNIFICANCE OF THE STUDY: The present work illustrates the importance of respiratory processes on the carbon balance and the relationship among different carbon balance components during vine phenology.
    Keywords Vitis vinifera ; aboveground biomass ; biomass production ; carbon ; carbon dioxide fixation ; cultivars ; genotype ; grapes ; irrigation ; leaves ; phenology ; photosynthesis ; research ; vines ; wines
    Language English
    Dates of publication 2022-10
    Size p. 534-544.
    Publishing place John Wiley & Sons Australia, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 1385235-8
    ISSN 1755-0238 ; 1322-7130
    ISSN (online) 1755-0238
    ISSN 1322-7130
    DOI 10.1111/ajgw.12557
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    In stock of ZB MED Bonn / Germany

    Z 6620: Show issues

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