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| Ravaneli,Gisele Cristina; Garcia,Débora Branquinho; Madaleno,Leonardo Lucas; Mutton,Miguel Ângelo; Stupiello,José Paulo; Mutton,Márcia Justino Rossini. |
| The objective of this work was to evaluate the impacts of spittlebug (Mahanarva fimbriolata) attack on sugarcane quality and ethanol production. Technological and microbiological parameters of juice and fermentation process were evaluated in ten fermentation cycles and two harvest seasons. Treatments consisted of different spittlebug stalk damage levels: control, with 100% of apparently healthy stalks; medium, with 15% of damaged or dry stalks (DDS); high, with 30% of DDS; and very high, with 60% of DDS. Spittlebug attack caused significant losses in cane quality, reducing total soluble solids, sucrose content, total reducing sugars, and pH, and increasing total phenolic compounds, and total and volatile juice acidity. The fermentation process was also... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mahanarva fimbriolata; Saccharum; Cane quality; Ethanolic fermentation; Technological quality. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000200002 |
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| Garcia,Débora Branquinho; Ravaneli,Gisele Cristina; Madaleno,Leonardo Lucas; Mutton,Miguel Angelo; Mutton,Márcia Justino Rossini. |
| The quality of the raw material defines the industrial potential production. The harvest of raw sugarcane promoted a favorable environment for the increase of Mahanarva fimbriolata (Stål, 1854) pest that affects the plant development. This research was undertaken to evaluate the effects of M. fimbriolata on sugarcane quality and fermentation process. For the technological analysis, four damage levels and two evaluation periods were evaluated, while four fermentation cycles and two evaluation periods were tested for microbiological analysis, with three replications. The determined parameters were Brix (soluble solids), Pol (apparent sucrose), Purity, reducing sugars (RS), total reducing sugars (TRS), Total Acidity, pH and Total Phenolic Compounds in juice.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mahanarva fimbriolata infestation; Saccharum spp.; Ethanolic fermentation. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000500009 |
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| Ravaneli,Gisele Cristina; Madaleno,Leonardo Lucas; Presotti,Leandro Eduardo; Mutton,Miguel Angelo; Mutton,Márcia Justino Rossini. |
| The spittlebug (Mahanarva fimbriolata) has become a key pest of the sugarcane crop in Brazil with the increase of green-cane harvesting, causing stalk yield and cane quality losses. This research was undertaken to evaluate the effects of the spittlebug (Mahanarva fimbriolata) on cane quality and juice fermentation. The experiment was arranged in a completely randomized 5 × 2 factorial design, with five spittlebug infestation levels (0-0.5; 0.6-2.5; 2.6-5; 5.1-8; 8.1-12.5 nymphs m-1), controlled or not with thiamethoxam (0.2 kg of active ingredient ha-1). To conduct fermentation, Saccharomyces cerevisiae (fresh and pressed baker's yeast) was inoculated to musts at a concentration of 30 g L-1. Microbiological analyses were performed at the beginning, middle... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Saccharum spp.; Mahanarva fimbriolata; Fermentation process; Ethanol production. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000600004 |
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