2000
DOI: 10.1590/s1516-35982000000400007
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Abstract: RESUMO -A lignina extraída da planta forrageira pelo reagente brometo de acetila (lignina brometo de acetila -LBrAc), para ser empregada como padrão de referência no método espectrofotométrico para a determinação quantitativa da lignina, não pode originar-se da planta intacta, devido à interferência de diversas outras substâncias, que absorvem no mesmo comprimento de onda que a lignina; aconselha-se, portanto, que a extração da lignina seja realizada a partir de um dos seguintes compostos: parede celular propr… Show more

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Cited by 4 publications
(3 citation statements)
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“…In studies with elephant grass grown for fodder purposes, the fi bre content of the whole plant increases and protein content decreases, the longer the plant remains in the fi eld (Andrade et al, 2005). The levels of fi bre in the present study were similar to those reported by Savioli et al (2000) and Campos et al (2002), which recorded values close to 42%, and by Queiroz Filho et al (2000), which reported values up to 48%, for plants growing for 100 days in the fi eld. When grown on the Acrisol, all genotypes showed similar lignin content, except for genotype Cameroon, which was signifi cantly lower (9.7%) in this parameter than the genotype Bag 02 (13.5%).…”
Section: Resultssupporting
confidence: 87%
“…In studies with elephant grass grown for fodder purposes, the fi bre content of the whole plant increases and protein content decreases, the longer the plant remains in the fi eld (Andrade et al, 2005). The levels of fi bre in the present study were similar to those reported by Savioli et al (2000) and Campos et al (2002), which recorded values close to 42%, and by Queiroz Filho et al (2000), which reported values up to 48%, for plants growing for 100 days in the fi eld. When grown on the Acrisol, all genotypes showed similar lignin content, except for genotype Cameroon, which was signifi cantly lower (9.7%) in this parameter than the genotype Bag 02 (13.5%).…”
Section: Resultssupporting
confidence: 87%
“…Upon acid hydrolysis, the glucose would be recovered whereas xylose would not due to its degradation. NMR analysis of acetyl bromide isolated lignin samples produced complex spectra indicating significant amounts of acetylated 1) and similar to values reported previously (32), which ranged from 1.1 to 10.0% in AcBrL extracted from crude cell wall, neutral detergent fiber, or acid detergent fiber.…”
Section: Resultssupporting
confidence: 86%
“…Equipments and vehicles used In studies on elephant grass grown for forage purpose, the fiber content of the whole plant increased and protein content decreased, the longer the plant remains in the field (Andrade et al, 2005). The levels of fiber in the present study were similar to those reported by Savioli et al (2000) and Campos et al (2002), which observed values close to 40%, and by Queiroz Filho et al (2000), who reported values up to 43%, for plants grown for 100 days in the field. According to McKendry et al (2002), the levels of lignin and fiber observed in the genotypes used in the present study are considered satisfactory for energy production by direct combustion.…”
Section: Field Activitiessupporting
confidence: 92%