Results 21 to 30 of about 509,678 (183)

Multivariate Optimization of Electrochemical Biosensors for the Determination of Compounds Related to Food Safety—A Review

open access: yesBiosensors, 2023
We summarize the application of multivariate optimization for the construction of electrochemical biosensors. The introduction provides an overview of electrochemical biosensing, which is classified into catalytic-based and affinity-based biosensors, and
Héctor Fernández   +10 more
doaj   +1 more source

Obtention of the fase perovskite via microemulsion

open access: yesEclética Química, 2018
The present work focuses on the synthesis of small particles of the perovskite phase of BaMnO3 through the route of conventional coprecipitation (RCC) and the method of conventional microemulsion (MCM).
Leandro Fernandes   +3 more
doaj   +1 more source

Contagem de bactérias mesófilas aeróbias e características físico-químicas do leite humano armazenado em embalagem de polietileno

open access: yesVigilância Sanitária em Debate, 2016
Objetivo: Avaliar a contaminação por bactérias mesófilas aeróbias em leite humano ordenhado pasteurizado (LHOP) e a influência da embalagem de polietileno sobre as características físico-químicas do leite humano (LH) cru e pasteurizado. Metodologia: Foram analisadas 55 amostras de leite humano ordenhado (LHO), oriundas do Banco de Leite Humano (BLH) do
Mayara de Simas Mesquita   +3 more
openaire   +6 more sources

Qualidade de água usada na agricultura urbana na cidade do Recife

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2021
Resumo Com o presente estudo objetivou-se avaliar a qualidade físico-química e bacteriológica da água usada na irrigação de hortaliças em área de agricultura urbana, localizada no contorno rodoviário da BR-101 sul, na cidade do Recife.
Vicente de Paula   +2 more
doaj   +1 more source

Chemometric Characterization of Alembic and Industrial Sugar Cane Spirits from Cape Verde and Ceará, Brazil

open access: yesInternational Journal of Analytical Chemistry, 2012
Sugar cane spirits are some of the most popular alcoholic beverages consumed in Cape Verde. The sugar cane spirit industry in Cape Verde is based mainly on archaic practices that operate without supervision and without efficient control of the production
Regina F. R. Pereira   +8 more
doaj   +1 more source

Stability of Non-Concentric, Multilayer, and Fully Aligned Porous MoS2 Nanotubes

open access: yesMembranes, 2022
Nanotubes made of non-concentric and multiple small layers of porous MoS2 contain inner pores suitable for membrane applications. In this study, molecular dynamics simulations using reactive potentials were employed to estimate the stability of the ...
Pablo Jahir Peña-Obeso   +3 more
doaj   +1 more source

Caracterização físico-química de vinhos coloniais do planalto catarinense [PDF]

open access: yes, 2015
TCC (graduação)- Universidade Federal de Santa Catarina. Campus Curitibanos. Agronomia.Determinar parâmetros físico-químicos em vinhos é uma forma utilizada para verificar se os produtos comercializados atendem os requisitos da legislação brasileira ...
Ventura, Kevim Muniz
core  

Magnetic lipase B from Candida antarctica (CALB) biocatalyst for integrated valorization of tilapia by‐products and biodiesel biorefining

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract The immobilization of lipase B from Candida antarctica (CALB) on an amino‐epoxy functionalized magnetic support (Fe3O4‐PEI‐DGEBA) resulted in a highly stable and efficient biocatalyst for biofuel production from tilapia oil. The synthesized support was characterized using scanning electron microscopy, transmission electron microscopy, X‐ray ...
Rafael Leandro Fernandes Melo   +12 more
wiley   +1 more source

Determinação de arranjos moleculares em cristais líquidos nemáticos utilizando defração de raio-x [PDF]

open access: yes, 1984
Dissertaçao (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.
Machado, Paulo Rodrigues
core  

Evaluating the combined toxicity of Penicillium mycotoxins in absorption, metabolism, and excretion systems

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Penicillium mycotoxins, including ochratoxin A (OTA), citrinin (CIT), and cyclopiazonic acid (CPZ), frequently co‐occur in food commodities, contributing to chronic low‐level dietary exposure. However, current risk assessments often consider these toxins individually, overlooking potential interaction effects.
Carolina Sousa Monteiro   +3 more
wiley   +1 more source

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