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  <controlfield tag="003">BR-BrBNA</controlfield>
  <controlfield tag="005">20240517084248.0</controlfield>
  <controlfield tag="008">240517b2014    bl.qr|pooa||| 00| 0 por |</controlfield>
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  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Radunz, L.L.</subfield>
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    <subfield code="a">Melo, E.C.</subfield>
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    <subfield code="a">Rocha, R.P.</subfield>
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    <subfield code="a">Barbosa, F.F.</subfield>
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    <subfield code="a">Santos, R.H.S.</subfield>
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    <subfield code="a">Berbet, P.A.</subfield>
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  <datafield tag="245" ind1=" " ind2=" ">
    <subfield code="a">Avalia&#xE7;&#xE3;o das curvas de secagem de guaco (Mikania glomerata Spreng.) em secador de bandejas</subfield>
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    <subfield code="a">Publica&#xE7;&#xE3;o on-line; 22 ref.; 2 tables; 13 illus.; Summaries (En, Pt)</subfield>
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RESUMO: 

Esse trabalho teve como objetivo avaliar diferentes modelos matem&#xE1;ticos para
determinar a curva de secagem de guaco. Para a condu&#xE7;&#xE3;o do experimento, foi utilizado um
secador com ventila&#xE7;&#xE3;o for&#xE7;ada, com 4 bandejas, empregando g&#xE1;s liquefeito de petr&#xF3;leo como
fonte de aquecimento. Foram realizados 6 tratamentos de secagem: com ar aquecido a 40, 50,
60, 70 e 80&#xBA;C, e com ar a temperatura ambiente. Para todos os tratamentos a velocidade do
ar de secagem passando atrav&#xE9;s da massa de plantas foi mantida em, aproximadamente, 0,5
m s-1. Para ajuste dos modelos matem&#xE1;ticos aos dados experimentais realizou-se an&#xE1;lise de
regress&#xE3;o n&#xE3;o-linear pelo m&#xE9;todo Quasi-Newton empregando-se o programa computacional
STATISTICA 6.0&#xAE;, sendo os valores dos par&#xE2;metros dos modelos estimados em fun&#xE7;&#xE3;o
da temperatura do ar de secagem. Apenas o modelo proposto por Midilli et al. apresentou
ajuste satisfat&#xF3;rio para descrever o processo de secagem de guaco, independentemente da
temperatura do ar de secagem, enquanto o modelo da aproxima&#xE7;&#xE3;o da difus&#xE3;o se adequou
para a temperatura ambiente e com ar aquecido a 60&#xBA;C.

Palavras-chave: Plantas medicinais, modelos matem&#xE1;ticos, cin&#xE9;tica de secagem</subfield>
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ABSTRACT: 

Evaluation of drying curves of Mikania glomerata Spreng. in a tray dryer. This
work aimed to evaluate different mathematical models to determine the curve of the drying of
Mikania glomerata Spreng. . For the conduction of the experiment, a drier with forced ventilation
was used, with 4 trays, using liquefied petroleum gas as heating source. Six drying treatments
were carried out, that is, with hot air at 40, 50, 60, 70 and 80&#xBA;C, as well as drying with air at room
temperature. For all the treatments, the drying air speed, through the mass of plants, were kept
at, approximately, 0.5 m s-1. For the adjustment of the mathematical models to the experimental
data, nonlinear regression analysis was performed through the Quasi-Newton method, using
the computational program STATISTICA 6.0&#xAE;, and the values of the parameters of the models
were estimated in function of the temperature of the drying air. But only the model considered
by Midilli et al. presented satisfactory adjustment to describe the process of drying Mikania
glomerata Spreng., regardless of the temperature of the drying air, while the model of diffusion
approximation was suitable for room temperature and hot air at 60&#xBA;C.

Keywords: Medicinal plants, mathematical models, drying kinetics</subfield>
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  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">PLANTA MEDICINAL</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">MODELO MATEM&#xC1;TICO</subfield>
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    <subfield code="a">SECAGEM</subfield>
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  <datafield tag="773" ind1="0" ind2=" ">
    <subfield code="0">3543</subfield>
    <subfield code="9">315250</subfield>
    <subfield code="d">Botucatu-SP Instituto de Bioci&#xEA;ncias - Departamento de Qu&#xED;mica e Bioqu&#xED;mica 1998</subfield>
    <subfield code="o">2024-1501</subfield>
    <subfield code="t">Revista Brasileira de Plantas Medicinais (Brazil)</subfield>
    <subfield code="x">1516-0572</subfield>
    <subfield code="g">v. 16(2 suppl. 1) p. 378-387; (2014)</subfield>
    <subfield code="w">BR2024000775</subfield>
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    <subfield code="u">https://www.scielo.br/j/rbpm/a/Dx3DqRMXMc68TYMFh9k7Fzp/?format=pdf&amp;lang=pt</subfield>
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    <subfield code="c">Anal&#xED;tica</subfield>
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  <datafield tag="999" ind1=" " ind2=" ">
    <subfield code="c">299636</subfield>
    <subfield code="d">299636</subfield>
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