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Brazilian Archives of Biology and Technology
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(Instituto de Tecnologia do Paraná - Tecpar, 2024-01-12)The use of computational simulation techniques is an important tool for the coffee harvesting issues, particularly the finite element method. The method is widely used in the structural analysis of agricultural machinery, ... -
(Instituto de Tecnologia do Paraná - Tecpar, 2023-03-24)Nitrogen uptake is essential for coffee growth and development, resulting in important effects on the biomass and final crop yield. Thus, like most nutrients, nitrogen is absorbed by the roots using water as a mean of ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2022-11-11)The aim of this study was to develop an adsorbent from coffee husk, residue from the coffee industry by different activation methods and to evaluate its application in the treatment of effluent containing synthetic Ponceau ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2019)The aim of this work is to evaluate the performance of upflow anaerobic fixed bed reactors filled with espresso coffee capsules to treat sanitary sewage. Three reactors (R1, R2 and R3) were constructed in blue PVC pipes ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2020)Endophytic fungi belonging to the genus Muscodor now transferred to Induratia are known producers of bioactive volatile organic compounds (VOCs) with many industrial applications. However, the members of this genus have ...
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Influence of Silver Nitrate on Somatic Embryogenesis Induction in Arabica Coffee (Coffea arabica L.)(Instituto de Tecnologia do Paraná - Tecpar, 2019)The influence of silver nitrate (AgNO3), benzyladenine (BAP), and indole-3-acetic acid (IAA) on low frequency somatic embryogenesis (LFSE) induction in Caturra and Catuaí arabica coffee was evaluated. For the Caturra ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2020)Commercial roasted and ground coffees are usually blends of Coffea arabica and Coffea canephora. Considering the differences in price and sensory characteristics between these two species, the identification of the presence ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2014-09)The molecular characterization of ten genotypes of the Coffea arabica plants and of seven genotypes of C. canephora having interesting features for coffee breeding programs was carried to select the parents for breeding. ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2014-01)This study compared the regular and decaffeinated coffees in relation to antioxidant capacity, levels of some antioxidant molecules and stability of these parameters over a six-month period under different storage conditions. ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2001-10)A method for the evaluation of arsenic and selenium in soluble coffee by inductively coupled plasma atomic emission spectrometry with continuous hydride generation to attend the Brazilian food legislation is described. ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2000-07)Endosperm is the main reserve tissue in coffee seeds. Coffee (Coffea arabica L.) seeds were germinated for six weeks and qualitative and quantitative changes in amino acids and proteins were investigated. The total content ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2000-03)Frost damages in a field experiment of pruning types and systems for the cultivars of Coffea arabica Catuaí and Mundo Novo, were evaluated at Londrina (23 o 22’S, 52 o 10 ́W), State of Parana, southern Brazil, during the ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2007-03)Studies were carried out on extracellular protease production by Beauveria bassiana CG432 in liquid medium containing glucose and yeast extract. B. Bassiana presented active growth after lag period of 24 h., produced 80% ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2005-07)The genetic variability of 40 accessions of C. arabica was evaluated using a combination of the random amplified polymorphic DNA (RAPD) technique and restriction digestion of genomic DNA. The genetic variability and the ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2005-01)The genetic variability for frost resistance was evaluated in field conditions and cold chamber among Coffea accessions. Results showed that C. liberica var. dewevrei and C. racemosa, as well as hybrids obtained from these ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2010-03)The aim of this study was to evaluate the coffee germplasm of the Paraná Agronomic Institute (IAPAR) for resistance to the coffee-berry-borer. Preliminary field evaluation was performed in August 2004 and the fruits of ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2009-11)Ochratoxin A (OTA) is one of the most abundant food-contaminating mycotoxins. Its occurrence in several agricultural commodities has been considered a worldwide problem. This toxin is mainly produced by Aspergillus species. ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2007-09)The aim of this work was to evaluate the resistance to rust in coffee carrying SH3 gene and other SH genes. Twenty one CIFC’s coffee trees with several resistance genes SH were evaluated in field conditions. All the evaluated ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2007-07)The aim of this study was to identify plants of the IAPAR-59 and Tupi IAC 1669-33 coffee cultivars with less defeated resistance genes by the rust races present at IAPAR (Londrina, Paraná State, Brazil) using test-crosses. ...
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(Instituto de Tecnologia do Paraná - Tecpar, 2013-05)This study investigated the microbiology of a hybrid anaerobic reactor (HAR) in the removal of pollutant loads. This reactor had the same physical structure of an UASB reactor, however with minifilters inside containing ...
