Valter Arthur

ORCID: 0000-0003-3521-9136
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Research Areas
  • Insect Pest Control Strategies
  • Radiation Effects and Dosimetry
  • Insect behavior and control techniques
  • Agricultural and Food Sciences
  • Insect Resistance and Genetics
  • Plant Genetic and Mutation Studies
  • Insect and Pesticide Research
  • Growth and nutrition in plants
  • Insect-Plant Interactions and Control
  • Meat and Animal Product Quality
  • Postharvest Quality and Shelf Life Management
  • Soybean genetics and cultivation
  • Seed Germination and Physiology
  • Magnetic and Electromagnetic Effects
  • GABA and Rice Research
  • Insect Utilization and Effects
  • Phytochemicals and Antioxidant Activities
  • Seed and Plant Biochemistry
  • Sensory Analysis and Statistical Methods
  • Microbial Inactivation Methods
  • Plant Micronutrient Interactions and Effects
  • Spectroscopy and Chemometric Analyses
  • Plant tissue culture and regeneration
  • Fermentation and Sensory Analysis
  • Biofuel production and bioconversion

Universidade de São Paulo
2014-2024

Ghana Standards Authority
2024

Ghana Education Service
2024

Instituto de Pesquisas Energéticas e Nucleares
2005-2021

Nuclear Engineering Institute
2010-2021

National Nuclear Energy Commission
2017-2021

Secretaria de Agricultura e Abastecimento
2018

Universidade Estadual Paulista (Unesp)
2016

Universidade Metodista de São Paulo
2016

Instituto Federal do Sul de Minas
2014

O presente estudo teve como objetivo caracterizar a diversidade de ácaros em cafeeiros da cultivar Mundo Novo duas importantes regiões produtoras (Jeriquara e Garça) do Estado São Paulo. Para tanto, foram coletadas amostras quinzenais folhas, ramos frutos, entre abril 2001 junho 2003, terço médio 10 plantas tomadas ao acaso cada campo. De planta 12 folhas (cada uma terceiro ou quarto par partir extremidade distal um ramo), (25 cm apicais) 100 frutos. Foram coletados no total 13.052 nos dois...

10.1590/s1676-06032006000200012 article PT Biota Neopropica/Biota Neotropica 2006-01-01

Light-based methods are being further developed to meet the growing demands for food in agricultural industry. Optical imaging is a rapid, non-destructive, and accurate technology that can produce consistent measurements of product quality compared conventional techniques. In this research, novel approach seed prediction presented. proposed two advanced optical techniques based on chlorophyll fluorescence chemometric-based multispectral were employed. The chemometrics encompassed principal...

10.3389/fpls.2020.577851 article EN cc-by Frontiers in Plant Science 2020-12-21

Abstract Background The use of non-destructive methods with less human interference is great interest in agricultural industry and crop breeding. Modern imaging technologies enable the automatic visualization multi-parameter for characterization biological samples, reducing subjectivity optimizing analysis process. Furthermore, combination two or more techniques has contributed to discovering new physicochemical tools interpreting datasets real time. Results We present a method seed quality...

10.1186/s13007-021-00709-6 article EN cc-by Plant Methods 2021-01-26

The application of artificial intelligence (AI) such as deep learning in the quality control grains has potential to assist analysts decision making and improving procedures. Advanced technologies based on X-ray imaging provide markedly easier ways insect infestation stored products, regardless whether features are visible surface grains. Here, we applied contrast enhancement algorithms peripheral equalization calcification emphasis images improve detection Sitophilus zeamais maize In...

10.3390/foods10040879 article EN cc-by Foods 2021-04-16

Yeast recycling, which is a common practice in sugarcane ethanol plants, could be expanded if it successfully implemented corn-based production. However, the process of recycling yeast remaining after fermentation hampered by contaminating microorganisms that reduce efficiency and compete with for fermentable sugars. Currently, antibiotics are used to control microbial contamination. This study proposes chlorine dioxide electron beam irradiation as alternative methods completely inactivating...

10.3390/stresses4010009 article EN cc-by Stresses 2024-02-01

Reducing spoilage and indicator bacteria is important for microbiological stability in meat products. The objective was to evaluate the effect of different doses gamma radiation on shelf-life lamb meat, vacuum-packed stored under refrigeration, by assessing safety, physicochemical sensory quality. Lamb loin cuts (Longissimus dorsi) were irradiated with 1.5kGy 3.0kGy. samples, including control, at 1±1°C during 56days. Samples analyzed zero, 14, 28, 42 56days their characteristics. Sensory...

10.1016/j.meatsci.2014.01.026 article EN publisher-specific-oa Meat Science 2014-02-09

High-gravity fermentation, used for ethanol production from sugarcane, corn, and mixed substrates, offers several benefits. Yeast, a rapidly multiplying unicellular microorganism, can be adapted high sugar tolerance on lab scale. However, different substrates enhance fermentation efficiency. Our study consisted of two experiments. In the first, we compared simple batch feeding with fed-batch system yeast selection in high-gravity fermentation. We ran eight cycles increasing initial contents...

10.3390/stresses3040055 article EN cc-by Stresses 2023-11-29

The sanitary quality of seed is essential in agriculture. This because pathogenic fungi compromise physiological and prevent the formation plants field, which causes losses to farmers. Multispectral images technologies coupled with machine learning algorithms can optimize identification healthy peanut seeds, greatly improving quality. objective was verify whether multispectral artificial intelligence tools are effective for discriminating tropical seeds. For this purpose, dry seeds infected...

10.3389/fpls.2023.1112916 article EN cc-by Frontiers in Plant Science 2023-02-22

Mesmo o Brasil sendo maior produtor de feijão, é necessário importar para suprir a grande demanda interna, que agravada pelas grandes perdas por infestações durante armazenamento. Para combater estas processo irradiação dos feijões uma alternativa. Foram avaliadas as alterações ocorreram em grãos feijão preto crus e cozidos irradiados nas doses 0, 2, 4, 6, 8 10kGy quantidade ferro, taninos ácido fítico, digestibilidade da proteína disponibilidade ferro. teor ferro não houve variação (média...

10.1590/s0101-20612005000100018 article PT Food Science and Technology 2005-03-01

Os morangos possuem curta vida útil pós-colheita devido à rápida deterioração causada por fungos, mesmo quando armazenados sob refrigeração. O presente trabalho teve objetivo avaliar as alterações físico-químicas em irradiados. Morangos (Fragaria anassa Duch.) da variedade Sweet Charles, colhidos na região de Valinhos-SP, foram irradiados um dia após a colheita fonte 60Co, nas doses 0,5; 1,0; 1,5 e 2,0 kGy controle, refrigeração (4 °C) 1, 8, 15, 22 29 dias. Para caracterização dos frutos foi...

10.1590/s0101-20612008000300017 article PT Food Science and Technology 2008-09-01

Diesel adulteration not only reduces engine performance and lifespan but also has a stiffening effect on the economy. Therefore, regulatory agencies petroleum laboratories are constantly adopting various methods to ensure that commercial diesel is pure of good quality. Despite introduction solvent tracer analysis as reliable means detecting adulteration, most still depend physicochemical parameters an indicator adulteration. This research aimed document feasibility using quality detect Neat...

10.1016/j.heliyon.2024.e36945 article EN cc-by-nc Heliyon 2024-08-27

A pesquisa teve como objetivo verificar a viabilidade da radiação gama método de conservação do arroz polido (Oryza sativa L.). As amostras foram irradiadas com doses 0,5; 1,0; 3,0; e 5,0 kGy. Foram realizadas análises quebra grão no beneficiamento, longevidade reprodução Sitophilus oryzae L., composição centesimal, o conteúdo amilose aparente propriedades pasta dos amidos, para cor (instrumental) análise sensorial cru cozido. Foi utilizado teste Tukey (p < 0,05) diferença estatística entre...

10.1590/s0101-20612009000100008 article PT Food Science and Technology 2009-03-01
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