Luiz Antonio Moura Keller

@uff.br

Faculdade de Veterinária, Departamento de Zootecnia
University Federal Fluminense

Luiz Antonio Moura Keller


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https://researchid.co/luiz_keller
Veterinarian, currently Associate Professor of Veterinary Toxicology at the Universidade Federal Fluminense (UFF). Graduated from the Universidade Federal Rural do Rio de Janeiro (UFRRJ) in 2006, Master (2009) and PhD (2013) in Veterinary Science also by UFRRJ. This same course CNPq scholarship since 2006, and initiation since 2004. Researcher collaborator of State Center for Research in Food (CEPQA) of PESAGRO-RJ. Leader of Toxicology Core research and Animal Health (NTSA-UFF). Experiences in Toxicology area, Microbiology, with emphasis on Mycology and Micotoxicologia, acting on the following topics: fungi, yeasts, mycobiota, mycotoxins, animal health and food.

EDUCATION

Veterinary Toxicology and Animal Science Associated professor of University Federal Fluminense, UFF, Brazil.

RESEARCH, TEACHING, or OTHER INTERESTS

Animal Science and Zoology, Agricultural and Biological Sciences, Biotechnology, Analytical Chemistry
31

Scopus Publications

1137

Scholar Citations

14

Scholar h-index

21

Scholar i10-index

Scopus Publications

  • Antibacterial and Antifungal Properties of Ocotea indecora Essential Oil and Its Nanoemulsion
    Francisco Paiva Machado, Julia C. Scaffo, Leonardo A. Pinto, Renata F. A. Pereira, Sorele Fiaux, et al.
    Pharmaceuticals, 2025
    Background: Antimicrobial resistance and fungal contamination remain major threats to public health and agriculture, emphasizing the need for innovative alternatives. Plant-derived products are a promising alternative, and nanoformulations may further enhance their activity. Objective: This study investigated the antimicrobial potential of Ocotea indecora essential oil and its nanoemulsion. Methods/Results: The essential oil chemical characterization by GC-MS revealed sesquirosefuran (91.61%) as the main constituent. A factorial design guided the selection of an optimized nanoemulsion, which exhibited spherical nanometric droplets (79 nm and 0.029 PdI) with long-term stability. The essential oil inhibited the growth of Gram-positive and Gram-negative strains at 1 to 2 mg/mL, while the nanoemulsion enhanced bactericidal activity against Staphylococcus aureus. In contrast, antifungal assays revealed a more pronounced effect, with the nanoemulsion lowering the minimum inhibitory concentrations (625 µg/mL) against Thielaviopsis ethacetica, thereby enhancing the inhibitory activity of the essential oil (2.5 mg/mL). Morphological alterations, including thinner hyphae and impaired sporulation, were also detected, suggesting a reduction in fungal virulence. Conclusions: In summary, O. indecora essential oil shows promising antimicrobial potential, and nanoemulsification proved particularly effective in potentiating fungistatic activity while offering limited enhancement of bactericidal effects. The results support the potential of O. indecora derivatives as natural candidates for the development of novel antimicrobial strategies.
  • Nanoemulsion of essential oil from Baccharis reticularia antifungal effect on Aspergillus flavus and Aspergillus parasiticus
    Alícia da Silva Carvalho, Dianna Soares da Silva, Leonardo de Assunção Pinto, Francisco Paiva Machado, Luiz Antônio Moura Keller, et al.
    Rodriguesia, 2025
    Filamentous fungi are potential food contaminants due to their production of mycotoxins, making essential to control their growth through environmentally sustainable strategies. Essential oils have emerged as promising alternatives; however, their application is limited due to their lipophilicity. In this context, nanoemulsion systems are advantageous for improving their dispersion and efficacy. This study aimed to develop and characterize a nanoemulsion based on Baccharis reticularia essential oil and evaluate its antifungal activity against strains of Aspergillus species. The essential oil yielded 0.33%, with 21 identified compounds, with β-caryophyllene being the major component (26.37%). The resulting nanoemulsion had an average droplet size of 113.1 ± 1.45 nm, a polydispersity index of 0.190 ± 0.015, and a zeta potential of -19.74 ± 1.45 mV after preparation. For A. flavus, the essential oil inhibited 29.5%, while its nanoemulsion enhanced the inhibition by 33.9% within the first 24h. However, for A. parasiticus, no growth inhibition was observed. The findings of this study highlight the potential of nanoemulsions as a sustainable strategy for controlling A. flavus. The observed colloidal stability and antifungal activity indicate their potential contribution to eco-friendly food preservation approaches. Future perspectives for the work include evaluating the nanoemulsion antifungal efficacy under post-harvest storage conditions to confirm its practical applicability.
  • Chemical profile and microbiological activity of essential oil from Persea venosa: an endemic species from Brazilian Flora
    Leonardo de Assunção Pinto, Julia Chaves Scaffo, Francisco Paiva Machado, Ricardo Santos Esteves, Victor Moebus, et al.
    Rodriguesia, 2025
    The Persea venosa belongs to the Lauraceae family, whose essential oils exhibit diverse bioactivity, including against significant pathogens such as bacteria and fungi of medical interest and/or contribute to food spoilage. Consequently, essential oils are recognized as viable alternatives for developing sustainable antimicrobials. In this study, essential oil was extracted by hydrodistillation from the leaves of P. venosa and analyzed in gas chromatography coupled with mass spectrometry. Microbiological assays were conducted at concentrations up to 2,048 µg/mL against Staphylococcus aureus; S. epidermidis; Escherichia coli; Enterobacter cloacae; Pseudomonas aeruginosa; Klebsiella pneumoniae; Aspergillus flavus; A. parasiticus, and A. westerdjikiae. The extraction yielded 0.10% (w/w) in which sesquiterpene hydrocarbons were identified (90.23%), with β-caryophyllene being the predominant substance at 38.59%. This composition aligns with the literature. The highest tested concentration exhibited inhibitory effects against all bacterial strains. The P. aeruginosa and S. epidermidis exhibited a minimum inhibitory concentration of 1,024 µg/mL. Bactericidal activity was only observed in S. epidermidis in a high concentration, the maximum tested. No antifungal activity was detected at any tested concentration. The present study highlights the antimicrobial effect of P. venosa essential oil (although only in high concentrations), being the first report of the activity related to the species.
  • Enhancement of Dairy Cow Milk Quality with Probiotic and Inorganic Selenium Supplementation
    Gabriela G. Mozart, Felipe B. N. Köptcke, Leonardo A. Pinto, Victor F. Moebus, Wagner P. Tamy, et al.
    Dairy, 2024
    Selenium (Se) is an essential micronutrient crucial in various metabolic processes. Dairy production is continually expanding and can supplement the population of regions with low Se. Adding live yeast concentrate (LYC) to cows’ diets can influence milk production, composition, and quality by modulating ruminal microbiota, resulting in increased milk yield and improved nutritional content. This study aimed to assess the enrichment of milk with selenite LYC for a subsequent increase in quality and production in supplemented lactating cows. Twenty-six cows were separated into three groups supplemented with different concentrations of Se for 15 days and different concentrations of LYC (Saccharomyces cerevisiae at 108 CFU g−1). The animals were divided into the following groups with the proposed treatments: Treatment 1 (T1) Control Group with just dry matter intake (DMI); Treatment 2 (T2) DMI + 0.3 mg kg−1 DMI of inorganic selenium + live yeast concentrate (LYC); Treatment 3 (T3) DMI + 0.6 mg kg−1 DMI of inorganic selenium + LYC. The milk was evaluated using physical–chemical, microbiologic, and toxicologic parameters according to Brazilian legislation. The addition of Se and yeast did not alter milk production; however, the application did lead to an increase in milk fat concentration compared with the control group, and no significant variations were observed in other physical–chemical parameters. Regarding the microbiological and toxicological analyses, all the samples presented satisfactory hygienic and sanitary conditions. The Somatic Cells Count from all treatments remained below 500,000 somatic cells mL−1, representing a positive effect of Se. The milk Se content was expected in residual form with the organic selenium being the more bioavailable form throughout the processing chain. The supplementation yielded results similar to those in the literature, highlighting the potential for customized technology and processes in dairy farming in ways that improve production, quality, and sanitation.
  • Inhibitory potential of Eugenia sulcata essential oil and its nanoemulsions against Aspergillus spp.
    Dianna S. da Silva, Leonardo A. Pinto, Luiz Antônio M. Keller, Francisco P. Machado, Débora N. Eiriz, et al.
    Journal of Natural Pesticide Research, 2024
  • Elaboration and Characterization of Dulce de Leche with Reduced Sugar Content
    Victor F. Moebus, Leonardo A. Pinto, Felipe B. N. Köptcke, Luiz A. M. Keller
    Dairy, 2023
    Dulce de leche is a South American traditional dairy product. However, due to the high sugar content, it is unsafe for consumers with special physiological conditions, such as diabetes. Light foods were developed to meet those demands whilst maintaining the sensory characteristics. The present study aimed to develop and characterize a formulation of light dulce de leche, using sweeteners to substitute sucrose, and gums as thickening and stabilizing agents. The physicochemical assays follow the AOAC manual, and the microbiological parameters were set according to MERCOSUL’s legislation. Thirty potential consumers perform the nine-point hedonic scale for product acceptance and the seven-point scale for buying intention. Compared to the traditional formulation, the product had better rheological properties, but a lighter color. All the raw materials and final products were considered safe by the recommended microbiological and toxicological standards; however, the product showed discrepancies to the physicochemical requirements. The formulation had an overall medium acceptance and low buying intention. The product had deficiencies, needing other compounds to reach the desired characteristics. Even though it leads to a more expensive final product, it is possible to adjust the product and allow access to more selective consumers or with restrictions.
  • Physicochemical, Microbiological, and Toxicological Characterization of Pâté Prepared from the Meat and Liver of Bullfrog (Aquarana catesbeiana) Carcasses
    Luiz Rogério G. Magalhães, Victor F. Moebus, Airton A. Castagna, Marcos Aronovich, Carlos Eduardo R. Coutinho, et al.
    Foods, 2023
    The development of balanced, healthy, ready-to-consume, and easy-to-prepare products has led to the development of new food technologies. Despite their high commercial value, bullfrog (Aquarana catesbeiana) carcasses result in low yields, with the thighs being the most marketed in comparison to other carcass portions. In this sense, liver pâté is a traditional food consumed worldwide, mainly in European countries, and may be prepared by incorporating bullfrog meat by-products and certain viscera. In this context, the aim of the present study was to develop a pâté product based on a mixture comprising 50% grounded bullfrog torso meat and 50% liver paste, with each treatment incorporating 10% liver paste increments, totaling five final mixtures. The nutritional compositions and physicochemical, microbiological, and toxicological characteristics of each mixture were assessed. The dry matter percentage of the prepared product was determined to be 27.00%, while mineral content was 1.45%, lipid content was 4.00%, and total protein content was 20.00%. Finally, microbiological counts were in agreement with current food safety regulations. The developed pâté serves as a standard, recycling underused industrial materials, adding value to the production chain at low operational costs, creating a more accessible market, and promoting the popularization of this type of meat.
  • In Vitro Mycotoxin Decontamination by Saccharomyces cerevisiae Strains Isolated from Bovine Forage
    Victor Farias Moebus, Leonardo de Assunção Pinto, Felipe Braz Nielsen Köptcke, Kelly Moura Keller, Marcos Aronovich, et al.
    Fermentation, 2023
    Aflatoxin B1 (AFB1) and Zearalenone (ZEN) are among the most common and important mycotoxin contaminants in agricultural products, with AFB1 comprising a liver carcinogen and ZEN responsible for reproductive dysfunctions. As mycotoxins are heat-stable, their removal is carried out mainly by anti-mycotoxin additives. This includes the yeast Saccharomyces cerevisiae. In this context, this study aimed to evaluate the in vitro detoxification of AFB1 and ZEN at pH 3 and 6 by three S. cerevisiae strains isolated from bovine forage, coded LL74, LL08, and LL83, determining the adsorption and biotransformation capacities of each strain. The yeast were freeze-dried and added, in triplicate, at 0, 0.5, 1.0, 1.5, and 2.0 mg mL−1 to a static gastrointestinal model. Final mycotoxin concentrations were determined by HPLC-FL. The evaluated strains exhibited high mycotoxin adsorption rates (20–55%), especially the LL08 strain, although low biotransformation, both equivalent to a commercial strain. The results indicate that pH does not interfere in AFB1 detoxification, while the use of 2.0 mg mL−1 of the LL83 S. cerevisiae strain led to higher ZEN adsorption at pH 3. The investigated strains indicate the possibility for use in in vivo conditions and high potential for commercial applications, with LL08 as the most promising strain.
  • Characterization and Inhibitory Effects of Essential Oil and Nanoemulsion from Ocotea indecora (Shott) Mez in Aspergillus Species
    Leonardo de Assunção Pinto, Francisco Paiva Machado, Ricardo Esteves, Victor Moebus Farias, Felipe Braz Nielsen Köptcke, et al.
    Molecules, 2023
    The Aspergillus genus, the etiological agent of aspergillosis, is an important food contaminant and mycotoxin producer. Plant extracts and essential oils are a source of bioactive substances with antimicrobial potential that can be used instead of synthetic food preservatives. Species from the Lauraceae family and the Ocotea genus have been used as traditional medicinal herbs. Their essential oils can be nanoemulsified to enhance their stability and bioavailability and increase their use. Therefore, this study sought to prepare and characterize both nanoemulsion and essential oil from the Ocotea indecora’s leaves, a native and endemic species from the Mata Atlântica forest in Brazil, and evaluate the activity against Aspergillus flavus RC 2054, Aspergillus parasiticus NRRL 2999, and Aspergillus westerdjikiae NRRL 3174. The products were added to Sabouraud Dextrose Agar at concentrations of 256, 512, 1024, 2048, and 4096 µg/mL. The strains were inoculated and incubated for up to 96 h with two daily measurements. The results did not show fungicidal activity under these conditions. A fungistatic effect, however, was observed. The nanoemulsion decreased the fungistatic concentration of the essential oil more than ten times, mainly in A. westerdjikiae. There were no significant changes in aflatoxin production.
  • Bacteriological quality and antimicrobial resistance of Staphylococcus spp. and Escherichia coli isolated from organic and conventional fresh cheese
    Mariana Marques SALEH, Alice Marqui de CARVALHO, Nayara Martins de ANDRADE, Ana Beatriz Monteiro FONSECA, Luiz Antonio Moura KELLER, et al.
    Food Science and Technology Brazil, 2023
  • Inhibitory Effect of GRAS Essential Oils and Plant Extracts on the Growth of Aspergillus westerdijkiae and Aspergillus carbonarius Strains
    Mariana Paiva Rodrigues, Águida Aparecida de Oliveira, Gabriela Lago Biscoto, Priscila Natália Pinto, Raul Roque de Souza Dias, et al.
    Molecules, 2022
  • The effect of the commercial fish gelatin protein hydrolysate on rainbow trout (Oncorhynchus mykiss) fillet quality
    Carolina Cristina Colão BARCELLOS, Pamela Esteves BASSIL, Maria Carmela Kasnowski Holanda DUARTE, Robson Maia FRANCO, Luiz Antonio Moura KELLER, et al.
    Food Science and Technology Brazil, 2020
  • In vitro activity of neem (azadirachta indica) oil on growth and ochratoxin a production by aspergillus carbonarius isolates
    Mariana Paiva Rodrigues, Andrea Luciana Astoreca, Águida Aparecida de Oliveira, Lauranne Alves Salvato, Gabriela Lago Biscoto, et al.
    Toxins, 2019
  • Development of a low commercial value fish-sausage from the fish trawling “mix” category
    Juliana de Lima Brandão GUIMARÃES, Flávia Aline Andrade CALIXTO, Luiz Antônio de Moura KELLER, Licínio Esmeraldo da SILVA, Ângela Aparecida Lemos FURTADO, et al.
    Food Science and Technology Brazil, 2019
  • Fatty acid composition and influence of temperature on the lipid stability of Arapaima gigas meat
    Nathália Miranda Coutinho, Anna Carolina Vilhena da Cruz Silva Canto, Eliane Teixeira Mársico, Flávio Alves da Silva, Luiz Antônio Moura Keller, et al.
    Brazilian Journal of Food Technology, 2019
  • Changes of serum free amino acids in eventing horses at rest and during exercise in response to dietary protein
    C.A.A. Oliveira, L.A.M. Keller, M.T. Ramos, V.P. Silva, C.D. Baldani, et al.
    Livestock Science, 2018
  • Quality of mechanically separated meat (MSM) and surimi obtained from low commercial value fish
    Juliana de Lima Brandão GUIMARÃES, Flávia Aline Andrade CALIXTO, Luiz Antônio de Moura KELLER, Renata Torrezan, Ângela Aparecida Lemos FURTADO, et al.
    Boletim do Instituto De Pesca, 2018
  • Fish products made from trawl fishery waste: Physical, chemical, microbiologic, and toxicological analysis
    D.S. Ribeiro, F.A.A. Calixto, J.L.B. Guimarães, M. Aronovich, L.A.M. Keller, et al.
    Arquivo Brasileiro De Medicina Veterinaria E Zootecnia, 2018
  • Efficacy of a yeast additive to mitigate the effects of zearalenone-contaminated feed in gilts
    Danielle FGM Leitão, Águida A Oliveira, Kelly M. Keller, Bruno S Vasconcelos, Luiz AM Keller, et al.
    Revista Colombiana De Ciencias Pecuarias, 2017
  • Zearalenone and its derivatives α-zearalenol and β-zearalenol decontamination by Saccharomyces cerevisiae strains isolated from bovine forage
    Luiz Keller, Luís Abrunhosa, Kelly Keller, Carlos Rosa, Lilia Cavaglieri, et al.
    Toxins, 2015
  • Effect of three different anti-mycotoxin additives on broiler chickens exposed to aflatoxin B1
    AA Oliveira, KM Keller, MV Deveza, LAM Keller, EO Dias, et al.
    Archivos De Medicina Veterinaria, 2015
  • Fungi and mycotoxins in silage: An overview
    V.A. Alonso, C.M. Pereyra, L.A.M. Keller, A.M. Dalcero, C.A.R. Rosa, et al.
    Journal of Applied Microbiology, 2013
  • Fungal and mycotoxins contamination in corn silage: Monitoring risk before and after fermentation
    L.A.M. Keller, M.L. González Pereyra, K.M. Keller, V.A. Alonso, A.A. Oliveira, et al.
    Journal of Stored Products Research, 2013
  • Gliotoxin contamination in and pre- and postfermented corn, sorghum and wet brewer's grains silage in Sao Paulo and Rio de Janeiro State, Brazil
    L.A.M. Keller, K.M. Keller, M.P. Monge, C.M. Pereyra, V.A. Alonso, et al.
    Journal of Applied Microbiology, 2012
  • Effect of yeast cell wall on the performance of broiler chickens intoxicated with aflatoxin B1
    Revista Brasileira De Medicina Veterinaria, 2012
  • Production of citreoviridin by Penicillium citreonigrum strains associated with rice consumption and beriberi cases in the Maranhão State, Brazil
    C.A.R. Rosa, K.M. Keller, A.A. Oliveira, T.X. Almeida, L.A.M. Keller, et al.
    Food Additives and Contaminants Part A, 2010
  • Aflatoxigenic fungi and aflatoxin B<sub>1</sub> in commercial pet food in Brazil
    S. Campos, L. Keller, L. Cavaglieri, C. Krüger, M. Fernández Juri, et al.
    World Mycotoxin Journal, 2009
  • Mycological survey and ochratoxin A natural contamination of swine feedstuffs in Rio de Janeiro State, Brazil
    C.A.R. Rosa, K.M. Keller, L.A.M. Keller, M.L. González Pereyra, C.M. Pereyra, et al.
    Toxicon, 2009
  • Mycobiota and aflatoxins in raw materials and pet food in Brazil
    S. G. Campos, L. R. Cavaglieri, M. G. Fernández Juri, A. M. Dalcero, C. Krüger, et al.
    Journal of Animal Physiology and Animal Nutrition, 2008
  • The mycobiota and toxicity of equine feeds
    K. M. Keller, B. D. Queiroz, L. A. M. Keller, J. M. M. Ribeiro, L. R. Cavaglieri, et al.
    Veterinary Research Communications, 2007
  • Mycological survey and mycotoxins detection in equine feeds samples
    K M Keller, B D Queiroz, L A M Keller,, J M M Ribeiro, L R Cavaglieri, et al.
    Pferdeheilkunde, 2005

RECENT SCHOLAR PUBLICATIONS

  • Antibacterial and Antifungal Properties of Ocotea indecora Essential Oil and Its Nanoemulsion
    FP Machado, JC Scaffo, LA Pinto, RFA Pereira, S Fiaux, LAM Keller, ...
    Pharmaceuticals 18 (12), 1909 , 2025
    2025
  • Chemical profile and microbiological activity of essential oil from Persea venosa : an endemic species from Brazilian Flora
    LA Pinto, JC Scaffo, FP Machado, RS Esteves, V Moebus, RFA Pereira, ...
    Rodriguésia 76, e00362025 , 2025
    2025
  • Nanoemulsion of essential oil from Baccharis reticularia antifungal effect on Aspergillus flavus and Aspergillus parasiticus
    AS Carvalho, DS Silva, LA Pinto, FP Machado, LAM Keller, L Rocha, ...
    Rodriguésia 76, e00342025 , 2025
    2025
  • Enhancement of dairy cow milk quality with probiotic and inorganic selenium supplementation
    GG Mozart, FBN Köptcke, LA Pinto, VF Moebus, WP Tamy, M Aronovich, ...
    Dairy 5 (2), 336-345 , 2024
    2024
    Citations: 4
  • Inhibitory potential of Eugenia sulcata essential oil and its nanoemulsions against Aspergillus spp.
    DS da Silva, LA Pinto, LAM Keller, FP Machado, DN Eiriz, L Rocha, ...
    Journal of Natural Pesticide Research 7, 100064 , 2024
    2024
    Citations: 6
  • Journal of Natural Pesticide Research
    DS da Silva, LA Pinto, LAM Keller, FP Machado, DN Eiriz, L Rocha, ...
    Journal of Natural Pesticide Research 7, 100064 , 2024
    2024
  • Elaboration and characterization of Dulce de Leche with reduced sugar content
    VF Moebus, LA Pinto, FBN Köptcke, LAM Keller
    Dairy 4 (4), 619-629 , 2023
    2023
    Citations: 4
  • Physicochemical, Microbiological, and Toxicological Characterization of Pâté Prepared from the Meat and Liver of Bullfrog ( Aquarana catesbeiana ) Carcasses
    LRG Magalhães, VF Moebus, AA Castagna, M Aronovich, CER Coutinho, ...
    Foods 12 (22), 4064 , 2023
    2023
    Citations: 2
  • Caracterização da micobiota e detecção de aflatoxina M1 em fórmulas infantis
    VM Farias, BC dos Santos Ferreira, L de Assunção Pinto, FBN Köptcke, ...
    Revista Caribeña-QUALIS B1 12 (4), 1828-1839 , 2023
    2023
    Citations: 1
  • In Vitro Mycotoxin Decontamination by Saccharomyces cerevisiae Strains Isolated from Bovine Forage
    VF Moebus, LA Pinto, FBN Köptcke, KM Keller, M Aronovich, LAM Keller
    Fermentation 9 (7), 585 , 2023
    2023
    Citations: 14
  • Characterization and Inhibitory Effects of Essential Oil and Nanoemulsion from Ocotea indecora (Shott) Mez in Aspergillus Species
    LA Pinto, FP Machado, R Esteves, VM Farias, FBN Köptcke, ...
    Molecules 28 (8), 3437 , 2023
    2023
    Citations: 12
  • Bacteriological quality and antimicrobial resistance of Staphylococcus spp. and Escherichia coli isolated from organic and conventional fresh cheese
    MM Saleh, AM CARVALHO, NM ANDRADE, ABM Fonseca, LAM Keller, ...
    Food Science and Technology 43, e54922 , 2023
    2023
    Citations: 3
  • IMPÁCTOS DE INCENTIVOS PÚBLICOS NO CUSTO DE GERAÇÃO DE UM SISTEMA DE CONCENTRAÇÃO SOLAR (HELIOTÉRMICO)
    RS Carvalho, PHS Bezerra, AM Collaço, CEL Oliveira
    ENGENHARIAS-AUTOMAÇÃO, ROBÓTICA, METROLOGIA E ENERGIA: ESTUDOS E TENDÊNCIAS … , 2023
    2023
  • ESTIGMAS ASSOCIADOS ÀS SERPENTES E SUAS CONSEQUÊNCIAS PARA OS VERTEBRADOS SERPENTIFORMES OFÍDICOS E NÃO-OFÍDICOS
    VLA Santos, EM Costa Neto
    ZOOLOGIA: DIVULGANDO O CONHECIMENTO CIENTÍFICO 1, 45-63 , 2023
    2023
  • REALIZAÇÃO DE OFICINA ECOLÓGICA COMO METODOLOGIA DE ENSINO E PRODUÇÃO DE MATERIAIS DIDÁTICOS NA ESCOLA BATUTINHAS, NO MUNICÍPIO DE BEQUIMÃO-MA
    LDS Rodrigues, SRB Ferreira
    II SETEAC-SIMPÓSIO ESTADUAL EM TECNOLOGIAS EDUCACIONAIS APLICADAS ÀS … , 2023
    2023
  • Inhibitory Effect of GRAS Essential Oils and Plant Extracts on the Growth of Aspergillus westerdijkiae and Aspergillus carbonarius Strains
    MP Rodrigues, ÁA de Oliveira, GL Biscoto, PN Pinto, RRS Dias, ...
    Molecules 27 (19), 6422 , 2022
    2022
    Citations: 5
  • Estudo das propriedades eletrônicas de estruturas de carbono 0D
    R Gomes
    Universidade Estadual do Maranhão , 2022
    2022
  • As interpretações sobre o desenvolvimento periférico na América Latina
    JS Ribeiro
    OPEN SCIENCE RESEARCH VII 7, 517-535 , 2022
    2022
  • A predição da saúde geral a partir do Suporte Organizacional e Capital Psicológico Positivo: Um estudo com professores que tem alunos vítima de violência intrafamiliar em …
    CGP Valin, NS Formiga, JBM Franco, LS Ferreira
    Open Science Research II 2, 850-881 , 2022
    2022
    Citations: 2
  • A importância da enfermagem na manutenção dos órgãos de um potencial doador: revisão integrativa de literatura
    DF Koch, CA Fanticelli, LB Chaves, G Pampolim, J Klauss
    CIÊNCIAS DA SAÚDE: DESAFIOS, PERSPECTIVAS E POSSIBILIDADES-VOLUME 4 4, 12-26 , 2022
    2022

MOST CITED SCHOLAR PUBLICATIONS

  • Fungi and mycotoxins in silage: an overview
    VA Alonso, CM Pereyra, LAM Keller, AM Dalcero, CAR Rosa, ...
    Journal of Applied Microbiology 115 (3), 637-643 , 2013
    2013
    Citations: 259
  • Fungal and mycotoxins contamination in corn silage: Monitoring risk before and after fermentation
    LAM Keller, MLG Pereyra, KM Keller, VA Alonso, AA Oliveira, TX Almeida, ...
    Journal of Stored Products Research 52, 42-47 , 2013
    2013
    Citations: 130
  • Zearalenone and Its Derivatives α-Zearalenol and β-Zearalenol Decontamination by Saccharomyces cerevisiae Strains Isolated from Bovine Forage
    L Keller, L Abrunhosa, K Keller, CA Rosa, L Cavaglieri, A Venâncio
    Toxins 7 (8), 3297-3308 , 2015
    2015
    Citations: 93
  • The mycobiota and toxicity of equine feeds
    KM Keller, BD Queiroz, LAM Keller, JMM Ribeiro, LR Cavaglieri, ...
    Veterinary Research Communications 31 (8), 1037-1045 , 2007
    2007
    Citations: 63
  • Production of citreoviridin by Penicillium citreonigrum strains associated with rice consumption and beriberi cases in the Maranhão State, Brazil
    CAR Rosa, KM Keller, AA Oliveira, TX Almeida, LAM Keller, AC Marassi, ...
    Food Additives and Contaminants 27 (2), 241-248 , 2010
    2010
    Citations: 61
  • Mycological survey and ochratoxin A natural contamination of swine feedstuffs in Rio de Janeiro State, Brazil
    CAR Rosa, KM Keller, LAM Keller, MLG Pereyra, CM Pereyra, ...
    Toxicon 53 (2), 283-288 , 2009
    2009
    Citations: 59
  • In Vitro Activity of Neem ( Azadirachta indica ) Oil on Growth and Ochratoxin A Production by Aspergillus carbonarius Isolates
    MP Rodrigues, AL Astoreca, ÁA Oliveira, LA Salvato, GL Biscoto, ...
    Toxins 11 (10), 579 , 2019
    2019
    Citations: 46
  • Mycobiota and aflatoxins in raw materials and pet food in Brazil
    SG Campos, LR Cavaglieri, MG Fernández Juri, AM Dalcero, C Krüger, ...
    Journal of Animal Physiology and Animal Nutrition 92 (3), 377-383 , 2008
    2008
    Citations: 43
  • Gliotoxin contamination in and pre‐and postfermented corn, sorghum and wet brewer’s grains silage in Sao Paulo and Rio de Janeiro State, Brazil
    LAM Keller, KM Keller, MP Monge, CM Pereyra, VA Alonso, LR Cavaglieri, ...
    Journal of applied microbiology 112 (5), 865-873 , 2012
    2012
    Citations: 36
  • Effect of three different anti-mycotoxin additives on broiler chickens exposed to aflatoxin B1
    AA Oliveira, KM Keller, MV Deveza, LAM Keller, EO Dias, ...
    Archivos de medicina veterinaria 47 (2), 175-183 , 2015
    2015
    Citations: 27
  • Aflatoxigenic fungi and aflatoxin B1 in commercial pet food in Brazil
    S Campos, L Keller, L Cavaglieri, C Krüger, M Fernández Juri, A Dalcero, ...
    World Mycotoxin Journal 2 (1), 85-90 , 2009
    2009
    Citations: 27
  • Sistema de blocos prensados para produção de mudas de três espécies arbéreas nativas
    L Keller, PSS Leles, SN Oliveira Neto, RP Coutinho, DF Nascimento
    Revista Árvore 33 (2), 305-314 , 2009
    2009
    Citations: 26
  • Fungi and Mycotoxins from Pre‐and Poststorage Brewer′ s Grain Intended for Bovine Intensive Rearing
    LAM Keller, CM Pereyra, LR Cavaglieri, AM Dalcero, CAR Rosa
    International Scholarly Research Notices 2012 (1), 396590 , 2012
    2012
    Citations: 22
  • Fatty acid composition and influence of temperature on the lipid stability of Arapaima gigas meat
    NM Coutinho, ACVCS Canto, ET Mársico, FA Silva, LAM Keller, ...
    Brazilian Journal of Food Technology 22, e2018132 , 2019
    2019
    Citations: 18
  • In Vitro Mycotoxin Decontamination by Saccharomyces cerevisiae Strains Isolated from Bovine Forage
    VF Moebus, LA Pinto, FBN Köptcke, KM Keller, M Aronovich, LAM Keller
    Fermentation 9 (7), 585 , 2023
    2023
    Citations: 14
  • Characterization and Inhibitory Effects of Essential Oil and Nanoemulsion from Ocotea indecora (Shott) Mez in Aspergillus Species
    LA Pinto, FP Machado, R Esteves, VM Farias, FBN Köptcke, ...
    Molecules 28 (8), 3437 , 2023
    2023
    Citations: 12
  • Development of a low commercial value fish-sausage from the fish trawling “mix” category
    JLB GUIMARÃES, FAA CALIXTO, LAM KELLER, LE SILVA, ...
    Food Science and Technology 39 (Suppl. 1), 115-121 , 2018
    2018
    Citations: 12
  • Produtos de pescado elaborados com resíduos de arrasto: análise físico-química, microbiológica e toxicológica
    DS Ribeiro, FAA Calixto, JLB Guimarães, M Aronovich, LAM Keller, ...
    Arquivo Brasileiro de Medicina Veterinária e Zootecnia 70, 238-246 , 2018
    2018
    Citations: 12
  • Fungi and Aflatoxin B1 in pre and post-fermented sorghum trench type silos destined to bovine intensive-rearing in Brazil
    LAM Keller, CM Pereyra, LR Cavaglieri, KM Keller, TX Almeida, ...
    Revista Bio Ciencias 2 (1) , 2013
    2013
    Citations: 12
  • Efeito de parede celular de levedura sobre o desempenho produtivo de frangos de corte intoxicados com aflatoxina B1
    KM Keller, ÁA de Oliveira, TX de Almeida, LAM Keller, BD Queiroz, ...
    Brazilian Journal of Veterinary Medicine 34 (2), 101-105 , 2012
    2012
    Citations: 12