Dry matter production and distribution in three cassava (Manihot esculenta Crantz) cultivars during the second vegetative plant cycle

Sagrilo, Edvaldo; Filho, Pedro Soares Vidigal; Pequeno, Manoel Genildo; Gonçalves‐Vidigal, Maria Celeste; Kvitschal, Marcus Vinícius

doi:10.1590/s1516-89132008000600001

Cited by 20 publications

(22 citation statements)

References 13 publications

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“…and mean annual rainfall of 1,617 mm (Sagrilo et al, 2008). The treatments consisted of a total of eight cassava genotypes: five clones belonging to the 89/IAC generation from the cassava breeding program at the "Instituto Agronômico de Campinas"(IAC) in Campinas, SP,Brazil namely, and three genotypes were the traditional cultivars IAC 12, Fibra and Branca de Santa Catarina, which were used as controls.…”

Section: Methodsmentioning

confidence: 99%

Comparison of methods for phenotypic stability analysis of cassava (Manihot esculenta Crantz) genotypes for yield and storage root dry matter content

Kvitschal

Filho

Scapim

et al. 2009

Braz. arch. biol. technol.

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Section: Methodsmentioning

confidence: 99%

Comparison of methods for phenotypic stability analysis of cassava (Manihot esculenta Crantz) genotypes for yield and storage root dry matter content

Kvitschal

Filho

Scapim

et al. 2009

Braz. arch. biol. technol.

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“…Indeed, the lack of information on high yielding cassava cultivars for the several Brazilian environmental conditions is one of the main limiting factors. Cultivars with high and stable yields over a range of environmental conditions are especially valuable and can be experimentally identified by quantifying genotype x environment interactions, by repeating the trials in several regions of interest and testing a large number of genotypes in several different environments (Sagrilo et al 2008). Phenotypic variation in characteristics such as yield is a result of the joint action of the genotype (G), environment (E) and their interaction (GxE), and reflects differences in the response of genotypes to environmental variation (Allard and Bradshaw 1964).…”

Section: Introductionmentioning

confidence: 99%

Phenotypic stability in cassava estimated by the AMMI analysis with supplementary genotypes

Morais

Santiago

Cavalcante³

2017

Crop Breed. Appl. Biotechnol.

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“…The leaves of cassava are, most often, wasted in all Brazilian regions, and according to SAGRILO et al (2008), the production of leaves varies with the harvesting period and can reach approximately two tons of dry matter per hectare, which can be considered agroindustrial waste. The low utilization of cassava leaves (Manihot spp.)…”

Section: Introductionmentioning

confidence: 99%

Evaluation of protein extraction methods to obtain protein concentrate from cassava leaf

et al. 2013

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ABSTRACT:The cassava leaf, waste generated in the harvest of the roots, is characterized by high content of protein, vitamins and minerals; however, its use is limited due to the high fiber content and antinutritional substances, which can be removed by obtaining protein concentrates. In this context, the objective of this study was to evaluate protein extraction processes, aiming the use of cassava leaves (Manihot esculenta Crantz) as an alternative protein. Four methods were tested: 1) Coagulation of Proteins by Lowering the Temperature, 2) Extraction by Isoelectric Precipitation, 3) Solubilization of Proteins and 4) Fermentation of Filter Leaf Juice. To obtain the concentrates, the use of fresh or dried leaves and extraction in one or two steps were also evaluated. The solubilization of proteins (method 3) showed a higher extraction yield; however, with concentrate of low quality. The fermentation of the juice (method 4) produced concentrates with higher quality and lower costs and the isoelectric precipitation (method 2) promoted the obtention of concentrates in less time, both with good prospects for use. The use of two extraction steps was not advantageous to the process and there was no difference between the use of fresh or dried leaf, and the use of fresh leaves is presented as a good option for the simplicity of the method.KEYWORDS: exploitation, agricultural waste, protein extraction. AVALIAÇÃO DE MÉTODOS DE EXTRAÇÃO DE PROTEÍNAS PARA OBTENÇÃO DE CONCENTRADO PROTÉICO DE FOLHAS DE MANDIOCARESUMO: A folha de mandioca, resíduo gerado na colheita das raízes, caracteriza-se pelo alto teor de proteínas, vitaminas e minerais, no entanto sua utilização é reduzida devido ao alto teor de fibras e substâncias antinutricionais que podem ser removidas durante obtenção de concentrados proteicos. Neste contexto, o objetivo do presente trabalho foi avaliar processos de extração de proteínas, visando ao aproveitamento das folhas de mandioca (Manihot esculenta Crantz) como alternativa proteica. Quatro métodos foram testados: 1) Coagulação de Proteínas por Abaixamento da Temperatura; 2) Extração por Precipitação Isoelétrica; 3) Solubilização das Proteínas; 4) Fermentação do Suco de Folhas Filtrado. Para a obtenção dos concentrados, avaliaram-se também a utilização de folhas frescas ou secas e a extração em uma ou duas etapas. A solubilização das proteínas (método 3) apresentou maior rendimento de extração, no entanto com concentrado de baixa qualidade. A fermentação do suco (método 4) produziu concentrados com mais qualidade e menores custos, e a precipitação isoelétrica (método 2) promoveu a obtenção de concentrados em menor tempo, sendo ambos com boas perspectivas de utilização. A utilização de duas etapas de extração não foi vantajosa ao processo e não houve diferença entre a utilização de folha seca ou fresca, sendo que a utilização de folhas frescas se apresenta como boa opção pela simplicidade do método. PALAVRAS-CHAVE:aproveitamento, resíduo agrícola, extração de proteínas.

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Dry matter production and distribution in three cassava (Manihot esculenta Crantz) cultivars during the second vegetative plant cycle

Abstract: A study was carried out in Araruna County, State of Paraná, to understand

Cited by 20 publications

References 13 publications

Comparison of methods for phenotypic stability analysis of cassava (Manihot esculenta Crantz) genotypes for yield and storage root dry matter content

Comparison of methods for phenotypic stability analysis of cassava (Manihot esculenta Crantz) genotypes for yield and storage root dry matter content

Phenotypic stability in cassava estimated by the AMMI analysis with supplementary genotypes

Evaluation of protein extraction methods to obtain protein concentrate from cassava leaf

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