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Qualidade Industrial E Rendimento De Etanol De Genótipos De Sorgo Sacarino Em Planta E Rebrota
| Content Provider | Semantic Scholar |
|---|---|
| Author | Câmara, Tassiano Maxwell Marinho Parrella, Rafael Silva, Herácliton De Éfeso Da |
| Copyright Year | 2018 |
| Abstract | RESUMO - O rendimento de cultivares de sorgo sacarino em planta de primeiro corte e na rebrota tem sido estudado para viabilizar o cultivo com menores custos de producao. Entretanto, dados qualitativos sobre a qualidade de caldo e rendimento de etanol entre safra principal e rebrota sao escassos. Objetivou-se com este trabalho comparar genotipos de sorgo sacarino quanto a qualidade industrial e avaliar o efeito do tipo de colheita e biomassa processada no rendimento industrial para producao de etanol. Foi conduzido um experimento em blocos ao acaso com tres repeticoes em esquema de parcela subdividida, sendo as parcelas constituidas por 20 genotipos de sorgo e as subparcelas pelos tipos de amostras processadas ou colheitas realizadas. Os maiores rendimentos de etanol, em termos absolutos, foram obtidos para CMSXS646 e BRS 511 na colheita de primeiro corte com colmos limpos. A utilizacao de colmos limpos promoveu, em media, um incremento de 13,5, 14,2, 13,4, 3,3, 7,9, 7,0, 8,0 e 16,4% para etanol, ART, ATR, umidade, ARC, Pol, °Brix, quantidade de caldo, respectivamente, e reducao de 17,3% para fibra, em relacao as amostras de colmos com folhas. O rendimento medio de etanol por tonelada de caldo extraido foi 28% superior no primeiro corte comparativamente a rebrota. Palavras-chave: Bioenergia, biomassa, °Brix, Sorghum bicolor. INDUSTRIAL QUALITY AND ETHANOL YIELD OF SWEET SORGHUM GENOTYPES IN MAIN AND RATOON CROPS ABSTRACT - The yield of sweet sorghum cultivars in first cut and ratoon crops have been studied to enable the cultivation with lower production costs. However, qualitative data on broth quality and yield of ethanol on main crop and ratoon are scarce. The aim of this work was to compare sweet sorghum genotypes regarding the industrial quality and to evaluate the effects of harvests and processed biomass types in the industrial yield for ethanol production. A randomized block design experiment was carried out with three replicates in a split plot design, being the plots composed by 20 sorghum genotypes and the subplots by the types of processed samples or harvests. The highest ethanol yields, in absolute terms, were obtained for CMSXS646 and BRS 511 in first cut with clean stalks. The use of clean stalks promoted, on average, an increase of 13.5, 14.2, 13.4, 3.3, 7.9, 7.0, 8.0 and 16.4% for ethanol, ART, ATR, moisture, ARC, Pol, ° Brix, juice amount, respectively, and reduction of 17.3% for fiber, in relation to samples with stalks and leafs. The average yield of ethanol per extracted juice ton was 28% higher in first cut compared to ratoon. Keywords: bioenergy, biomass, °Brix, Sorghum bicolor. |
| Starting Page | 216 |
| Ending Page | 228 |
| Page Count | 13 |
| File Format | PDF HTM / HTML |
| DOI | 10.18512/1980-6477/rbms.v17n2p216-228 |
| Volume Number | 17 |
| Alternate Webpage(s) | https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1096216/1/Qualidadeindustrial.pdf |
| Alternate Webpage(s) | https://doi.org/10.18512/1980-6477%2Frbms.v17n2p216-228 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
