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Bicalho,Elisa Monteze; Motoike,Sérgio Yoshimitsu; Lima e Borges,Eduardo Euclydes de; Ataíde,Glauciana da Mata; Guimarães,Valéria Monteze. |
ABSTRACT Reserve mobilization in seeds occurs after visible germination, which is marked by the protrusion of the radicle or cotyledonary petiole, as in species of Arecaceae. Acrocomia aculeata (macaw palm), usually produces hard seeds whose endosperm has mannan-rich cell walls. We investigated the composition of storage compounds in macaw palm seed and the roles of two enzymes (endo-β-mannanase, α-galactosidase) during and after germination. The seeds were firstly submitted to pre-established protocol to overcome dormancy and promote germination. Enzyme activity in both embryo and endosperm were assayed from the initiation of germinative activities until leaf sheath appearance, and the status of seed structures and reserve compounds were evaluated.... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Α-galactosidase; Arecaceae; Endo-β-mannanase; Galactomannan; Lipid; Palm seed; Protein; Starch. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000300438 |
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Araújo,Ana Laressa Feitosa; Britto,Douglas de. |
Abstract Sunburn is responsible for significant losses in post-harvest and has motivated studies to diminish its effect on different types of cultivars. Thus, the present study proposes a rapid protocol to evaluate the photoprotective effect of suppressive formulations. The experiment consisted in placing fruits (mango) covered with different suppressor formulations about 7 centimeters from an incandescent source and measuring the surface temperature variation employing a thermometer and thermal camera. The formulations were based on a filmogenic polysaccharide (galactomannan) and reflective additives (hydroxyapatite, montmorillonite and bentonite clays). The best result was achieved with a coating with bentonite as an additive, which showed a statistical... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nanocomposite; Galactomannan; Sunburn; Montmorillonite. |
Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452021000200302 |
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