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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
01/03/2019 |
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Data da última atualização: |
01/03/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ANJOS, C. V. S. dos; GONÇALVES, L. C.; RODRIGUES, J. A. S.; KELLER, K. M.; COELHO, M. M.; MICHEL, P. H. F.; OTTONI, D.; JAYME, D. G. |
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Afiliação: |
Universidade Federal de Minas Gerais; Universidade Federal de Minas Gerais; JOSE AVELINO SANTOS RODRIGUES, CNPMS; Universidade Federal de Minas Gerais; Universidade Federal de Minas Gerais; Universidade Federal de Minas Gerais; Universidade Federal de Minas Gerais; Universidade Federal de Minas Gerais. |
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Título: |
Effect of re-ensiling on the quality of sorghum silage. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Journal of Dairy Science, v. 101, p. 1-8, 2018. |
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DOI: |
10.3168/jds.2017-13687 |
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Idioma: |
Inglês |
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Conteúdo: |
The commercialization of silage in many countries, including Brazil, has increased in recent years. Reensiling of previously ensiled forage occurs when silage is relocated from one farm to another, where it will be compacted and sealed again. During this process, silage is exposed to oxygen before being ensiled, which may affect its quality. We exposed sorghum silage to air during the anaerobic storage phase to simulate the transportation of silages between farms. Experimental treatments included silage exposed to air for 0 or 12 h, with or without the use of an inoculant containing a mixture of Lactobacillus plantarum and the propionic bacteria Propionibacterium acidipropionici (1 × 106 cfu/g of forage; Biomax corn, Lallemand, Saint-Simon, France), totaling 4 treatments: conventional silage, conventional silage with inoculant use, re-ensilage after exposure to air, and re-ensilage after exposure to air with use of an inoculant. The sorghum was stored in experimental silos containing about 9.0 kg of fresh forage per replicate. Treatments were tested in a factorial 2 × 2 design with 5 replicates each. Chemical composition, in vitro dry matter digestibility, fermentative characteristics, losses (due to gas, effluents, and total dry matter), microorganism counts, and aerobic stability of sorghum silage were evaluated. Dry matter content of sorghum before ensiling was 273.12 g/kg. The 12-h re-ensiling process increased the effluent loss of the silage when compared with conventional silage (456.42 vs. 201.19 g/kg of FM, respectively). In addition, re-ensiled silages presented lower concentrations of lactic acid and higher concentrations of propionic acid than the silages that had not been opened during storage. The aerobic stability of silage was not affected by the re-ensiling process and the use of inoculant. The use of inoculant increased the pH and loss of dry matter of the silages (4.23 vs. 3.98 and 14.05 vs. 7.82%, respectively) and therefore did not provide any benefits in this study. MenosThe commercialization of silage in many countries, including Brazil, has increased in recent years. Reensiling of previously ensiled forage occurs when silage is relocated from one farm to another, where it will be compacted and sealed again. During this process, silage is exposed to oxygen before being ensiled, which may affect its quality. We exposed sorghum silage to air during the anaerobic storage phase to simulate the transportation of silages between farms. Experimental treatments included silage exposed to air for 0 or 12 h, with or without the use of an inoculant containing a mixture of Lactobacillus plantarum and the propionic bacteria Propionibacterium acidipropionici (1 × 106 cfu/g of forage; Biomax corn, Lallemand, Saint-Simon, France), totaling 4 treatments: conventional silage, conventional silage with inoculant use, re-ensilage after exposure to air, and re-ensilage after exposure to air with use of an inoculant. The sorghum was stored in experimental silos containing about 9.0 kg of fresh forage per replicate. Treatments were tested in a factorial 2 × 2 design with 5 replicates each. Chemical composition, in vitro dry matter digestibility, fermentative characteristics, losses (due to gas, effluents, and total dry matter), microorganism counts, and aerobic stability of sorghum silage were evaluated. Dry matter content of sorghum before ensiling was 273.12 g/kg. The 12-h re-ensiling process increased the effluent loss of the silage when compared with conventio... Mostrar Tudo |
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Thesagro: |
Qualidade; Silagem; Sorgo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02713naa a2200253 a 4500
001 2106671
005 2019-03-01
008 2018 bl uuuu u00u1 u #d
024 7 $a10.3168/jds.2017-13687$2DOI
100 1 $aANJOS, C. V. S. dos
245 $aEffect of re-ensiling on the quality of sorghum silage.$h[electronic resource]
260 $c2018
520 $aThe commercialization of silage in many countries, including Brazil, has increased in recent years. Reensiling of previously ensiled forage occurs when silage is relocated from one farm to another, where it will be compacted and sealed again. During this process, silage is exposed to oxygen before being ensiled, which may affect its quality. We exposed sorghum silage to air during the anaerobic storage phase to simulate the transportation of silages between farms. Experimental treatments included silage exposed to air for 0 or 12 h, with or without the use of an inoculant containing a mixture of Lactobacillus plantarum and the propionic bacteria Propionibacterium acidipropionici (1 × 106 cfu/g of forage; Biomax corn, Lallemand, Saint-Simon, France), totaling 4 treatments: conventional silage, conventional silage with inoculant use, re-ensilage after exposure to air, and re-ensilage after exposure to air with use of an inoculant. The sorghum was stored in experimental silos containing about 9.0 kg of fresh forage per replicate. Treatments were tested in a factorial 2 × 2 design with 5 replicates each. Chemical composition, in vitro dry matter digestibility, fermentative characteristics, losses (due to gas, effluents, and total dry matter), microorganism counts, and aerobic stability of sorghum silage were evaluated. Dry matter content of sorghum before ensiling was 273.12 g/kg. The 12-h re-ensiling process increased the effluent loss of the silage when compared with conventional silage (456.42 vs. 201.19 g/kg of FM, respectively). In addition, re-ensiled silages presented lower concentrations of lactic acid and higher concentrations of propionic acid than the silages that had not been opened during storage. The aerobic stability of silage was not affected by the re-ensiling process and the use of inoculant. The use of inoculant increased the pH and loss of dry matter of the silages (4.23 vs. 3.98 and 14.05 vs. 7.82%, respectively) and therefore did not provide any benefits in this study.
650 $aQualidade
650 $aSilagem
650 $aSorgo
700 1 $aGONÇALVES, L. C.
700 1 $aRODRIGUES, J. A. S.
700 1 $aKELLER, K. M.
700 1 $aCOELHO, M. M.
700 1 $aMICHEL, P. H. F.
700 1 $aOTTONI, D.
700 1 $aJAYME, D. G.
773 $tJournal of Dairy Science$gv. 101, p. 1-8, 2018.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
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Status |
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Voltar
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| Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
13/10/2021 |
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Data da última atualização: |
13/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
TORKAMAN, P.; VEIGA, M. M.; LIMA, L. R. P. de ANDRADE; OLIVEIRA, L. A. de; MOTTA, J. da S.; JESUS, J. L. de; LAVKULICH, L. M. |
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Afiliação: |
P. TORKAMAN, University of British Columbia; M. M. VEIGA, University of British Columbia; L. R. P. DE ANDRADE LIMA, UFBA; LUCIANA ALVES DE OLIVEIRA, CNPMF; JOSELITO DA SILVA MOTTA, CNPMF; JACIENE LOPES DE JESUS, CNPMF; L. M. LAVKULICH, University of British Columbia. |
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Título: |
Leaching gold with cassava: an option to eliminate mercury use in artisanal gold mining. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of Cleaner Production, v. 311, 2021. |
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ISSN: |
0959-6526 |
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Idioma: |
Português |
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Conteúdo: |
ABSTRACT Mercury pollution from artisanal gold mining causes severe environmental and health problems, especially to operators and people living around the processing facilities. Over 2000 tonnes/a of mercury is released to the environment by the artisanal miners which is the largest man-made source of mercury pollution. Here we present a novel method using a local plant, cassava, common in many artisanal mining areas in Latin America, Africa, and Asia, to dissolve gold from ores. In our experiments, we used a liquid by-product of cassava flour manufacturing, ?manipueira? to leach gold from the gold ore. It contains hydrogen cyanide, generating from the hydrolysis of cyanogenic glycosides in the cassava plant. The results were very promising to replace the use of mercury, as approximately 50% of the gold content was extracted from the ore in 24 h. |
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Thesagro: |
Mandioca. |
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Thesaurus NAL: |
Cassava. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01515naa a2200229 a 4500
001 2135261
005 2021-10-13
008 2021 bl uuuu u00u1 u #d
022 $a0959-6526
100 1 $aTORKAMAN, P.
245 $aLeaching gold with cassava$ban option to eliminate mercury use in artisanal gold mining.$h[electronic resource]
260 $c2021
520 $aABSTRACT Mercury pollution from artisanal gold mining causes severe environmental and health problems, especially to operators and people living around the processing facilities. Over 2000 tonnes/a of mercury is released to the environment by the artisanal miners which is the largest man-made source of mercury pollution. Here we present a novel method using a local plant, cassava, common in many artisanal mining areas in Latin America, Africa, and Asia, to dissolve gold from ores. In our experiments, we used a liquid by-product of cassava flour manufacturing, ?manipueira? to leach gold from the gold ore. It contains hydrogen cyanide, generating from the hydrolysis of cyanogenic glycosides in the cassava plant. The results were very promising to replace the use of mercury, as approximately 50% of the gold content was extracted from the ore in 24 h.
650 $aCassava
650 $aMandioca
700 1 $aVEIGA, M. M.
700 1 $aLIMA, L. R. P. de ANDRADE
700 1 $aOLIVEIRA, L. A. de
700 1 $aMOTTA, J. da S.
700 1 $aJESUS, J. L. de
700 1 $aLAVKULICH, L. M.
773 $tJournal of Cleaner Production$gv. 311, 2021.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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